#!/bin/bash # Copyright 2017 The Kubernetes Authors. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # A library of helper functions and constant for the local config. # Use the config file specified in $KUBE_CONFIG_FILE, or default to # config-default.sh. readonly GCE_MAX_LOCAL_SSD=8 KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../.. source "${KUBE_ROOT}/cluster/gce/${KUBE_CONFIG_FILE-"config-default.sh"}" source "${KUBE_ROOT}/cluster/common.sh" source "${KUBE_ROOT}/hack/lib/util.sh" if [[ "${NODE_OS_DISTRIBUTION}" == "debian" || "${NODE_OS_DISTRIBUTION}" == "container-linux" || "${NODE_OS_DISTRIBUTION}" == "trusty" || "${NODE_OS_DISTRIBUTION}" == "gci" || "${NODE_OS_DISTRIBUTION}" == "ubuntu" ]]; then source "${KUBE_ROOT}/cluster/gce/${NODE_OS_DISTRIBUTION}/node-helper.sh" else echo "Cannot operate on cluster using node os distro: ${NODE_OS_DISTRIBUTION}" >&2 exit 1 fi if [[ "${MASTER_OS_DISTRIBUTION}" == "container-linux" || "${MASTER_OS_DISTRIBUTION}" == "trusty" || "${MASTER_OS_DISTRIBUTION}" == "gci" || "${MASTER_OS_DISTRIBUTION}" == "ubuntu" ]]; then source "${KUBE_ROOT}/cluster/gce/${MASTER_OS_DISTRIBUTION}/master-helper.sh" else echo "Cannot operate on cluster using master os distro: ${MASTER_OS_DISTRIBUTION}" >&2 exit 1 fi if [[ ${NODE_LOCAL_SSDS:-} -ge 1 ]] && [[ ! -z ${NODE_LOCAL_SSDS_EXT:-} ]] ; then echo -e "${color_red}Local SSD: Only one of NODE_LOCAL_SSDS and NODE_LOCAL_SSDS_EXT can be specified at once${color_norm}" >&2 exit 2 fi if [[ "${MASTER_OS_DISTRIBUTION}" == "gci" ]]; then DEFAULT_GCI_PROJECT=google-containers if [[ "${GCI_VERSION}" == "cos"* ]]; then DEFAULT_GCI_PROJECT=cos-cloud fi MASTER_IMAGE_PROJECT=${KUBE_GCE_MASTER_PROJECT:-${DEFAULT_GCI_PROJECT}} # If the master image is not set, we use the latest GCI image. # Otherwise, we respect whatever is set by the user. MASTER_IMAGE=${KUBE_GCE_MASTER_IMAGE:-${GCI_VERSION}} elif [[ "${MASTER_OS_DISTRIBUTION}" == "debian" ]]; then MASTER_IMAGE=${KUBE_GCE_MASTER_IMAGE:-${CVM_VERSION}} MASTER_IMAGE_PROJECT=${KUBE_GCE_MASTER_PROJECT:-google-containers} fi # Sets node image based on the specified os distro. Currently this function only # supports gci and debian. function set-node-image() { if [[ "${NODE_OS_DISTRIBUTION}" == "gci" ]]; then DEFAULT_GCI_PROJECT=google-containers if [[ "${GCI_VERSION}" == "cos"* ]]; then DEFAULT_GCI_PROJECT=cos-cloud fi # If the node image is not set, we use the latest GCI image. # Otherwise, we respect whatever is set by the user. NODE_IMAGE=${KUBE_GCE_NODE_IMAGE:-${GCI_VERSION}} NODE_IMAGE_PROJECT=${KUBE_GCE_NODE_PROJECT:-${DEFAULT_GCI_PROJECT}} elif [[ "${NODE_OS_DISTRIBUTION}" == "debian" ]]; then NODE_IMAGE=${KUBE_GCE_NODE_IMAGE:-${CVM_VERSION}} NODE_IMAGE_PROJECT=${KUBE_GCE_NODE_PROJECT:-google-containers} fi } set-node-image # Verfiy cluster autoscaler configuration. if [[ "${ENABLE_CLUSTER_AUTOSCALER}" == "true" ]]; then if [[ -z $AUTOSCALER_MIN_NODES ]]; then echo "AUTOSCALER_MIN_NODES not set." exit 1 fi if [[ -z $AUTOSCALER_MAX_NODES ]]; then echo "AUTOSCALER_MAX_NODES not set." exit 1 fi fi NODE_INSTANCE_PREFIX=${NODE_INSTANCE_PREFIX:-"${INSTANCE_PREFIX}-minion"} NODE_TAGS="${NODE_TAG}" ALLOCATE_NODE_CIDRS=true PREEXISTING_NETWORK=false PREEXISTING_NETWORK_MODE="" KUBE_PROMPT_FOR_UPDATE=${KUBE_PROMPT_FOR_UPDATE:-"n"} # How long (in seconds) to wait for cluster initialization. KUBE_CLUSTER_INITIALIZATION_TIMEOUT=${KUBE_CLUSTER_INITIALIZATION_TIMEOUT:-300} function join_csv() { local IFS=','; echo "$*"; } # This function returns the first string before the comma function split_csv() { echo "$*" | cut -d',' -f1 } # Verify prereqs function verify-prereqs() { local cmd for cmd in gcloud gsutil; do if ! which "${cmd}" >/dev/null; then local resp="n" if [[ "${KUBE_PROMPT_FOR_UPDATE}" == "y" ]]; then echo "Can't find ${cmd} in PATH. Do you wish to install the Google Cloud SDK? [Y/n]" read resp fi if [[ "${resp}" != "n" && "${resp}" != "N" ]]; then curl https://sdk.cloud.google.com | bash fi if ! which "${cmd}" >/dev/null; then echo "Can't find ${cmd} in PATH, please fix and retry. The Google Cloud " >&2 echo "SDK can be downloaded from https://cloud.google.com/sdk/." >&2 exit 1 fi fi done update-or-verify-gcloud } # Use the gcloud defaults to find the project. If it is already set in the # environment then go with that. # # Vars set: # PROJECT # NETWORK_PROJECT # PROJECT_REPORTED function detect-project() { if [[ -z "${PROJECT-}" ]]; then PROJECT=$(gcloud config list project --format 'value(core.project)') fi NETWORK_PROJECT=${NETWORK_PROJECT:-${PROJECT}} if [[ -z "${PROJECT-}" ]]; then echo "Could not detect Google Cloud Platform project. Set the default project using " >&2 echo "'gcloud config set project '" >&2 exit 1 fi if [[ -z "${PROJECT_REPORTED-}" ]]; then echo "Project: ${PROJECT}" >&2 echo "Network Project: ${NETWORK_PROJECT}" >&2 echo "Zone: ${ZONE}" >&2 PROJECT_REPORTED=true fi } # Use gsutil to get the md5 hash for a particular tar function gsutil_get_tar_md5() { # location_tar could be local or in the cloud # local tar_location example ./_output/release-tars/kubernetes-server-linux-amd64.tar.gz # cloud tar_location example gs://kubernetes-staging-PROJECT/kubernetes-devel/kubernetes-server-linux-amd64.tar.gz local -r tar_location=$1 #parse the output and return the md5 hash #the sed command at the end removes whitespace local -r tar_md5=$(gsutil hash -h -m ${tar_location} 2>/dev/null | grep "Hash (md5):" | awk -F ':' '{print $2}' | sed 's/^[[:space:]]*//g') echo "${tar_md5}" } # Copy a release tar and its accompanying hash. function copy-to-staging() { local -r staging_path=$1 local -r gs_url=$2 local -r tar=$3 local -r hash=$4 local -r basename_tar=$(basename ${tar}) #check whether this tar alread exists and has the same hash #if it matches, then don't bother uploading it again #remote_tar_md5 checks the remote location for the existing tarball and its md5 #staging_path example gs://kubernetes-staging-PROJECT/kubernetes-devel #basename_tar example kubernetes-server-linux-amd64.tar.gz local -r remote_tar_md5=$(gsutil_get_tar_md5 "${staging_path}/${basename_tar}") if [[ -n ${remote_tar_md5} ]]; then #local_tar_md5 checks the remote location for the existing tarball and its md5 hash #tar example ./_output/release-tars/kubernetes-server-linux-amd64.tar.gz local -r local_tar_md5=$(gsutil_get_tar_md5 "${tar}") if [[ "${remote_tar_md5}" == "${local_tar_md5}" ]]; then echo "+++ ${basename_tar} uploaded earlier, cloud and local file md5 match (md5 = ${local_tar_md5})" return 0 fi fi echo "${hash}" > "${tar}.sha1" gsutil -m -q -h "Cache-Control:private, max-age=0" cp "${tar}" "${tar}.sha1" "${staging_path}" gsutil -m acl ch -g all:R "${gs_url}" "${gs_url}.sha1" >/dev/null 2>&1 echo "+++ ${basename_tar} uploaded (sha1 = ${hash})" } # Given the cluster zone, return the list of regional GCS release # bucket suffixes for the release in preference order. GCS doesn't # give us an API for this, so we hardcode it. # # Assumed vars: # RELEASE_REGION_FALLBACK # REGIONAL_KUBE_ADDONS # ZONE # Vars set: # PREFERRED_REGION # KUBE_ADDON_REGISTRY function set-preferred-region() { case ${ZONE} in asia-*) PREFERRED_REGION=("asia" "us" "eu") ;; europe-*) PREFERRED_REGION=("eu" "us" "asia") ;; *) PREFERRED_REGION=("us" "eu" "asia") ;; esac local -r preferred="${PREFERRED_REGION[0]}" if [[ "${RELEASE_REGION_FALLBACK}" != "true" ]]; then PREFERRED_REGION=( "${preferred}" ) fi # If we're using regional GCR, and we're outside the US, go to the # regional registry. The gcr.io/google_containers registry is # appropriate for US (for now). if [[ "${REGIONAL_KUBE_ADDONS}" == "true" ]] && [[ "${preferred}" != "us" ]]; then KUBE_ADDON_REGISTRY="${preferred}.gcr.io/google_containers" else KUBE_ADDON_REGISTRY="gcr.io/google_containers" fi if [[ "${ENABLE_DOCKER_REGISTRY_CACHE:-}" == "true" ]]; then DOCKER_REGISTRY_MIRROR_URL="https://${preferred}-mirror.gcr.io" fi } # Take the local tar files and upload them to Google Storage. They will then be # downloaded by the master as part of the start up script for the master. # # Assumed vars: # PROJECT # SERVER_BINARY_TAR # SALT_TAR # KUBE_MANIFESTS_TAR # ZONE # Vars set: # SERVER_BINARY_TAR_URL # SERVER_BINARY_TAR_HASH # SALT_TAR_URL # SALT_TAR_HASH # KUBE_MANIFESTS_TAR_URL # KUBE_MANIFESTS_TAR_HASH function upload-server-tars() { SERVER_BINARY_TAR_URL= SERVER_BINARY_TAR_HASH= SALT_TAR_URL= SALT_TAR_HASH= KUBE_MANIFESTS_TAR_URL= KUBE_MANIFESTS_TAR_HASH= local project_hash if which md5 > /dev/null 2>&1; then project_hash=$(md5 -q -s "$PROJECT") else project_hash=$(echo -n "$PROJECT" | md5sum | awk '{ print $1 }') fi # This requires 1 million projects before the probability of collision is 50% # that's probably good enough for now :P project_hash=${project_hash:0:10} set-preferred-region SERVER_BINARY_TAR_HASH=$(sha1sum-file "${SERVER_BINARY_TAR}") SALT_TAR_HASH=$(sha1sum-file "${SALT_TAR}") if [[ -n "${KUBE_MANIFESTS_TAR:-}" ]]; then KUBE_MANIFESTS_TAR_HASH=$(sha1sum-file "${KUBE_MANIFESTS_TAR}") fi local server_binary_tar_urls=() local salt_tar_urls=() local kube_manifest_tar_urls=() for region in "${PREFERRED_REGION[@]}"; do suffix="-${region}" if [[ "${suffix}" == "-us" ]]; then suffix="" fi local staging_bucket="gs://kubernetes-staging-${project_hash}${suffix}" # Ensure the buckets are created if ! gsutil ls "${staging_bucket}" >/dev/null; then echo "Creating ${staging_bucket}" gsutil mb -l "${region}" "${staging_bucket}" fi local staging_path="${staging_bucket}/${INSTANCE_PREFIX}-devel" echo "+++ Staging server tars to Google Storage: ${staging_path}" local server_binary_gs_url="${staging_path}/${SERVER_BINARY_TAR##*/}" local salt_gs_url="${staging_path}/${SALT_TAR##*/}" copy-to-staging "${staging_path}" "${server_binary_gs_url}" "${SERVER_BINARY_TAR}" "${SERVER_BINARY_TAR_HASH}" copy-to-staging "${staging_path}" "${salt_gs_url}" "${SALT_TAR}" "${SALT_TAR_HASH}" # Convert from gs:// URL to an https:// URL server_binary_tar_urls+=("${server_binary_gs_url/gs:\/\//https://storage.googleapis.com/}") salt_tar_urls+=("${salt_gs_url/gs:\/\//https://storage.googleapis.com/}") if [[ -n "${KUBE_MANIFESTS_TAR:-}" ]]; then local kube_manifests_gs_url="${staging_path}/${KUBE_MANIFESTS_TAR##*/}" copy-to-staging "${staging_path}" "${kube_manifests_gs_url}" "${KUBE_MANIFESTS_TAR}" "${KUBE_MANIFESTS_TAR_HASH}" # Convert from gs:// URL to an https:// URL kube_manifests_tar_urls+=("${kube_manifests_gs_url/gs:\/\//https://storage.googleapis.com/}") fi done SERVER_BINARY_TAR_URL=$(join_csv "${server_binary_tar_urls[@]}") SALT_TAR_URL=$(join_csv "${salt_tar_urls[@]}") if [[ -n "${KUBE_MANIFESTS_TAR:-}" ]]; then KUBE_MANIFESTS_TAR_URL=$(join_csv "${kube_manifests_tar_urls[@]}") fi } # Detect minions created in the minion group # # Assumed vars: # NODE_INSTANCE_PREFIX # Vars set: # NODE_NAMES # INSTANCE_GROUPS function detect-node-names() { detect-project INSTANCE_GROUPS=() INSTANCE_GROUPS+=($(gcloud compute instance-groups managed list \ --project "${PROJECT}" \ --filter "name ~ '${NODE_INSTANCE_PREFIX}-.+' AND zone:(${ZONE})" \ --format='value(name)' || true)) NODE_NAMES=() if [[ -n "${INSTANCE_GROUPS[@]:-}" ]]; then for group in "${INSTANCE_GROUPS[@]}"; do NODE_NAMES+=($(gcloud compute instance-groups managed list-instances \ "${group}" --zone "${ZONE}" --project "${PROJECT}" \ --format='value(instance)')) done fi # Add heapster node name to the list too (if it exists). if [[ -n "${HEAPSTER_MACHINE_TYPE:-}" ]]; then NODE_NAMES+=("${NODE_INSTANCE_PREFIX}-heapster") fi echo "INSTANCE_GROUPS=${INSTANCE_GROUPS[*]:-}" >&2 echo "NODE_NAMES=${NODE_NAMES[*]:-}" >&2 } # Detect the information about the minions # # Assumed vars: # ZONE # Vars set: # NODE_NAMES # KUBE_NODE_IP_ADDRESSES (array) function detect-nodes() { detect-project detect-node-names KUBE_NODE_IP_ADDRESSES=() for (( i=0; i<${#NODE_NAMES[@]}; i++)); do local node_ip=$(gcloud compute instances describe --project "${PROJECT}" --zone "${ZONE}" \ "${NODE_NAMES[$i]}" --format='value(networkInterfaces[0].accessConfigs[0].natIP)') if [[ -z "${node_ip-}" ]] ; then echo "Did not find ${NODE_NAMES[$i]}" >&2 else echo "Found ${NODE_NAMES[$i]} at ${node_ip}" KUBE_NODE_IP_ADDRESSES+=("${node_ip}") fi done if [[ -z "${KUBE_NODE_IP_ADDRESSES-}" ]]; then echo "Could not detect Kubernetes minion nodes. Make sure you've launched a cluster with 'kube-up.sh'" >&2 exit 1 fi } # Detect the IP for the master # # Assumed vars: # MASTER_NAME # ZONE # REGION # Vars set: # KUBE_MASTER # KUBE_MASTER_IP function detect-master() { detect-project KUBE_MASTER=${MASTER_NAME} echo "Trying to find master named '${MASTER_NAME}'" >&2 if [[ -z "${KUBE_MASTER_IP-}" ]]; then local master_address_name="${MASTER_NAME}-ip" echo "Looking for address '${master_address_name}'" >&2 if ! KUBE_MASTER_IP=$(gcloud compute addresses describe "${master_address_name}" \ --project "${PROJECT}" --region "${REGION}" -q --format='value(address)') || \ [[ -z "${KUBE_MASTER_IP-}" ]]; then echo "Could not detect Kubernetes master node. Make sure you've launched a cluster with 'kube-up.sh'" >&2 exit 1 fi fi echo "Using master: $KUBE_MASTER (external IP: $KUBE_MASTER_IP)" >&2 } # Reads kube-env metadata from master # # Assumed vars: # KUBE_MASTER # PROJECT # ZONE function get-master-env() { # TODO(zmerlynn): Make this more reliable with retries. gcloud compute --project ${PROJECT} ssh --zone ${ZONE} ${KUBE_MASTER} --command \ "curl --fail --silent -H 'Metadata-Flavor: Google' \ 'http://metadata/computeMetadata/v1/instance/attributes/kube-env'" 2>/dev/null gcloud compute --project ${PROJECT} ssh --zone ${ZONE} ${KUBE_MASTER} --command \ "curl --fail --silent -H 'Metadata-Flavor: Google' \ 'http://metadata/computeMetadata/v1/instance/attributes/kube-master-certs'" 2>/dev/null } # Robustly try to create a static ip. # $1: The name of the ip to create # $2: The name of the region to create the ip in. function create-static-ip() { detect-project local attempt=0 local REGION="$2" while true; do if gcloud compute addresses create "$1" \ --project "${PROJECT}" \ --region "${REGION}" -q > /dev/null; then # successful operation - wait until it's visible start="$(date +%s)" while true; do now="$(date +%s)" # Timeout set to 15 minutes if [[ $((now - start)) -gt 900 ]]; then echo "Timeout while waiting for master IP visibility" exit 2 fi if gcloud compute addresses describe "$1" --project "${PROJECT}" --region "${REGION}" >/dev/null 2>&1; then break fi echo "Master IP not visible yet. Waiting..." sleep 5 done break fi if gcloud compute addresses describe "$1" \ --project "${PROJECT}" \ --region "${REGION}" >/dev/null 2>&1; then # it exists - postcondition satisfied break fi if (( attempt > 4 )); then echo -e "${color_red}Failed to create static ip $1 ${color_norm}" >&2 exit 2 fi attempt=$(($attempt+1)) echo -e "${color_yellow}Attempt $attempt failed to create static ip $1. Retrying.${color_norm}" >&2 sleep $(($attempt * 5)) done } # Robustly try to create a firewall rule. # $1: The name of firewall rule. # $2: IP ranges. # $3: Target tags for this firewall rule. function create-firewall-rule() { detect-project local attempt=0 while true; do if ! gcloud compute firewall-rules create "$1" \ --project "${NETWORK_PROJECT}" \ --network "${NETWORK}" \ --source-ranges "$2" \ --target-tags "$3" \ --allow tcp,udp,icmp,esp,ah,sctp; then if (( attempt > 4 )); then echo -e "${color_red}Failed to create firewall rule $1 ${color_norm}" >&2 exit 2 fi echo -e "${color_yellow}Attempt $(($attempt+1)) failed to create firewall rule $1. Retrying.${color_norm}" >&2 attempt=$(($attempt+1)) sleep $(($attempt * 5)) else break fi done } # Format the string argument for gcloud network. function make-gcloud-network-argument() { local network_project="$1" local region="$2" local network="$3" local subnet="$4" local address="$5" # optional local enable_ip_alias="$6" # optional local alias_size="$7" # optional local networkURL="projects/${network_project}/global/networks/${network}" local subnetURL="projects/${network_project}/regions/${region}/subnetworks/${subnet:-}" local ret="" if [[ "${enable_ip_alias}" == 'true' ]]; then ret="--network-interface" ret="${ret} network=${networkURL}" # If address is omitted, instance will not receive an external IP. ret="${ret},address=${address:-}" ret="${ret},subnet=${subnetURL}" ret="${ret},aliases=pods-default:${alias_size}" ret="${ret} --no-can-ip-forward" else if [[ -n ${subnet:-} ]]; then ret="${ret} --subnet ${subnetURL}" else ret="${ret} --network ${networkURL}" fi ret="${ret} --can-ip-forward" if [[ -n ${address:-} ]]; then ret="${ret} --address ${address}" fi fi echo "${ret}" } # $1: version (required) function get-template-name-from-version() { # trim template name to pass gce name validation echo "${NODE_INSTANCE_PREFIX}-template-${1}" | cut -c 1-63 | sed 's/[\.\+]/-/g;s/-*$//g' } # validates the NODE_LOCAL_SSDS_EXT variable function validate-node-local-ssds-ext(){ ssdopts="${1}" if [[ -z "${ssdopts[0]}" || -z "${ssdopts[1]}" || -z "${ssdopts[2]}" ]]; then echo -e "${color_red}Local SSD: NODE_LOCAL_SSDS_EXT is malformed, found ${ssdopts[0]-_},${ssdopts[1]-_},${ssdopts[2]-_} ${color_norm}" >&2 exit 2 fi if [[ "${ssdopts[1]}" != "scsi" && "${ssdopts[1]}" != "nvme" ]]; then echo -e "${color_red}Local SSD: Interface must be scsi or nvme, found: ${ssdopts[1]} ${color_norm}" >&2 exit 2 fi if [[ "${ssdopts[2]}" != "fs" && "${ssdopts[2]}" != "block" ]]; then echo -e "${color_red}Local SSD: Filesystem type must be fs or block, found: ${ssdopts[2]} ${color_norm}" >&2 exit 2 fi local_ssd_ext_count=$((local_ssd_ext_count+ssdopts[0])) if [[ "${local_ssd_ext_count}" -gt "${GCE_MAX_LOCAL_SSD}" || "${local_ssd_ext_count}" -lt 1 ]]; then echo -e "${color_red}Local SSD: Total number of local ssds must range from 1 to 8, found: ${local_ssd_ext_count} ${color_norm}" >&2 exit 2 fi } # Robustly try to create an instance template. # $1: The name of the instance template. # $2: The scopes flag. # $3: String of comma-separated metadata entries (must all be from a file). function create-node-template() { detect-project detect-subnetworks local template_name="$1" # First, ensure the template doesn't exist. # TODO(zmerlynn): To make this really robust, we need to parse the output and # add retries. Just relying on a non-zero exit code doesn't # distinguish an ephemeral failed call from a "not-exists". if gcloud compute instance-templates describe "$template_name" --project "${PROJECT}" &>/dev/null; then echo "Instance template ${1} already exists; deleting." >&2 if ! gcloud compute instance-templates delete "$template_name" --project "${PROJECT}" --quiet &>/dev/null; then echo -e "${color_yellow}Failed to delete existing instance template${color_norm}" >&2 exit 2 fi fi local gcloud="gcloud" local accelerator_args="" # VMs with Accelerators cannot be live migrated. # More details here - https://cloud.google.com/compute/docs/gpus/add-gpus#create-new-gpu-instance if [[ ! -z "${NODE_ACCELERATORS}" ]]; then accelerator_args="--maintenance-policy TERMINATE --restart-on-failure --accelerator ${NODE_ACCELERATORS}" gcloud="gcloud beta" fi if [[ "${ENABLE_IP_ALIASES:-}" == 'true' ]]; then gcloud="gcloud beta" fi local preemptible_minions="" if [[ "${PREEMPTIBLE_NODE}" == "true" ]]; then preemptible_minions="--preemptible --maintenance-policy TERMINATE" fi local local_ssds="" local_ssd_ext_count=0 if [[ ! -z ${NODE_LOCAL_SSDS_EXT:-} ]]; then IFS=";" read -r -a ssdgroups <<< "${NODE_LOCAL_SSDS_EXT:-}" for ssdgroup in "${ssdgroups[@]}" do IFS="," read -r -a ssdopts <<< "${ssdgroup}" validate-node-local-ssds-ext "${ssdopts}" for i in $(seq ${ssdopts[0]}); do local_ssds="$local_ssds--local-ssd=interface=${ssdopts[1]} " done done fi if [[ ! -z ${NODE_LOCAL_SSDS+x} ]]; then # The NODE_LOCAL_SSDS check below fixes issue #49171 # Some versions of seq will count down from 1 if "seq 0" is specified if [[ ${NODE_LOCAL_SSDS} -ge 1 ]]; then for i in $(seq ${NODE_LOCAL_SSDS}); do local_ssds="$local_ssds--local-ssd=interface=SCSI " done fi fi local network=$(make-gcloud-network-argument \ "${NETWORK_PROJECT}" \ "${REGION}" \ "${NETWORK}" \ "${SUBNETWORK:-}" \ "" \ "${ENABLE_IP_ALIASES:-}" \ "${IP_ALIAS_SIZE:-}") local attempt=1 while true; do echo "Attempt ${attempt} to create ${1}" >&2 if ! ${gcloud} compute instance-templates create \ "$template_name" \ --project "${PROJECT}" \ --machine-type "${NODE_SIZE}" \ --boot-disk-type "${NODE_DISK_TYPE}" \ --boot-disk-size "${NODE_DISK_SIZE}" \ --image-project="${NODE_IMAGE_PROJECT}" \ --image "${NODE_IMAGE}" \ --service-account "${NODE_SERVICE_ACCOUNT}" \ --tags "${NODE_TAG}" \ ${accelerator_args} \ ${local_ssds} \ --region "${REGION}" \ ${network} \ ${preemptible_minions} \ $2 \ --metadata-from-file $3 >&2; then if (( attempt > 5 )); then echo -e "${color_red}Failed to create instance template $template_name ${color_norm}" >&2 exit 2 fi echo -e "${color_yellow}Attempt ${attempt} failed to create instance template $template_name. Retrying.${color_norm}" >&2 attempt=$(($attempt+1)) sleep $(($attempt * 5)) # In case the previous attempt failed with something like a # Backend Error and left the entry laying around, delete it # before we try again. gcloud compute instance-templates delete "$template_name" --project "${PROJECT}" &>/dev/null || true else break fi done } # Robustly try to add metadata on an instance. # $1: The name of the instance. # $2...$n: The metadata key=value pairs to add. function add-instance-metadata() { local -r instance=$1 shift 1 local -r kvs=( "$@" ) detect-project local attempt=0 while true; do if ! gcloud compute instances add-metadata "${instance}" \ --project "${PROJECT}" \ --zone "${ZONE}" \ --metadata "${kvs[@]}"; then if (( attempt > 5 )); then echo -e "${color_red}Failed to add instance metadata in ${instance} ${color_norm}" >&2 exit 2 fi echo -e "${color_yellow}Attempt $(($attempt+1)) failed to add metadata in ${instance}. Retrying.${color_norm}" >&2 attempt=$(($attempt+1)) sleep $((5 * $attempt)) else break fi done } # Robustly try to add metadata on an instance, from a file. # $1: The name of the instance. # $2...$n: The metadata key=file pairs to add. function add-instance-metadata-from-file() { local -r instance=$1 shift 1 local -r kvs=( "$@" ) detect-project local attempt=0 while true; do echo "${kvs[@]}" if ! gcloud compute instances add-metadata "${instance}" \ --project "${PROJECT}" \ --zone "${ZONE}" \ --metadata-from-file "$(join_csv ${kvs[@]})"; then if (( attempt > 5 )); then echo -e "${color_red}Failed to add instance metadata in ${instance} ${color_norm}" >&2 exit 2 fi echo -e "${color_yellow}Attempt $(($attempt+1)) failed to add metadata in ${instance}. Retrying.${color_norm}" >&2 attempt=$(($attempt+1)) sleep $(($attempt * 5)) else break fi done } # Instantiate a kubernetes cluster # # Assumed vars # KUBE_ROOT # function kube-up() { kube::util::ensure-temp-dir detect-project load-or-gen-kube-basicauth load-or-gen-kube-bearertoken # Make sure we have the tar files staged on Google Storage find-release-tars upload-server-tars # ensure that environmental variables specifying number of migs to create set_num_migs if [[ ${KUBE_USE_EXISTING_MASTER:-} == "true" ]]; then detect-master parse-master-env create-subnetworks detect-subnetworks create-nodes elif [[ ${KUBE_REPLICATE_EXISTING_MASTER:-} == "true" ]]; then if [[ "${MASTER_OS_DISTRIBUTION}" != "gci" && "${MASTER_OS_DISTRIBUTION}" != "debian" && "${MASTER_OS_DISTRIBUTION}" != "ubuntu" ]]; then echo "Master replication supported only for gci, debian, and ubuntu" return 1 fi create-loadbalancer # If replication of master fails, we need to ensure that the replica is removed from etcd clusters. if ! replicate-master; then remove-replica-from-etcd 2379 || true remove-replica-from-etcd 4002 || true fi else check-existing create-network create-subnetworks detect-subnetworks write-cluster-name create-autoscaler-config create-master create-nodes-firewall create-nodes-template create-nodes check-cluster fi } function check-existing() { local running_in_terminal=false # May be false if tty is not allocated (for example with ssh -T). if [[ -t 1 ]]; then running_in_terminal=true fi if [[ ${running_in_terminal} == "true" || ${KUBE_UP_AUTOMATIC_CLEANUP} == "true" ]]; then if ! check-resources; then local run_kube_down="n" echo "${KUBE_RESOURCE_FOUND} found." >&2 # Get user input only if running in terminal. if [[ ${running_in_terminal} == "true" && ${KUBE_UP_AUTOMATIC_CLEANUP} == "false" ]]; then read -p "Would you like to shut down the old cluster (call kube-down)? [y/N] " run_kube_down fi if [[ ${run_kube_down} == "y" || ${run_kube_down} == "Y" || ${KUBE_UP_AUTOMATIC_CLEANUP} == "true" ]]; then echo "... calling kube-down" >&2 kube-down fi fi fi } # TODO(#54017): Remove below logics for handling deprecated network mode field. # `x_gcloud_mode` was replaced by `x_gcloud_subnet_mode` in gcloud 175.0.0 and # the content changed as well. Keeping such logic to make the transition eaiser. function check-network-mode() { local mode="$(gcloud compute networks list --filter="name=('${NETWORK}')" --project ${NETWORK_PROJECT} --format='value(x_gcloud_subnet_mode)' || true)" if [[ -z "${mode}" ]]; then mode="$(gcloud compute networks list --filter="name=('${NETWORK}')" --project ${NETWORK_PROJECT} --format='value(x_gcloud_mode)' || true)" fi # The deprecated field uses lower case. Convert to upper case for consistency. echo "$(echo $mode | tr [a-z] [A-Z])" } function create-network() { if ! gcloud compute networks --project "${NETWORK_PROJECT}" describe "${NETWORK}" &>/dev/null; then # The network needs to be created synchronously or we have a race. The # firewalls can be added concurrent with instance creation. local network_mode="auto" if [[ "${CREATE_CUSTOM_NETWORK:-}" == "true" ]]; then network_mode="custom" fi echo "Creating new ${network_mode} network: ${NETWORK}" gcloud compute networks create --project "${NETWORK_PROJECT}" "${NETWORK}" --mode="${network_mode}" else PREEXISTING_NETWORK=true PREEXISTING_NETWORK_MODE="$(check-network-mode)" echo "Found existing network ${NETWORK} in ${PREEXISTING_NETWORK_MODE} mode." fi if ! gcloud compute firewall-rules --project "${NETWORK_PROJECT}" describe "${CLUSTER_NAME}-default-internal-master" &>/dev/null; then gcloud compute firewall-rules create "${CLUSTER_NAME}-default-internal-master" \ --project "${NETWORK_PROJECT}" \ --network "${NETWORK}" \ --source-ranges "10.0.0.0/8" \ --allow "tcp:1-2379,tcp:2382-65535,udp:1-65535,icmp" \ --target-tags "${MASTER_TAG}"& fi if ! gcloud compute firewall-rules --project "${NETWORK_PROJECT}" describe "${CLUSTER_NAME}-default-internal-node" &>/dev/null; then gcloud compute firewall-rules create "${CLUSTER_NAME}-default-internal-node" \ --project "${NETWORK_PROJECT}" \ --network "${NETWORK}" \ --source-ranges "10.0.0.0/8" \ --allow "tcp:1-65535,udp:1-65535,icmp" \ --target-tags "${NODE_TAG}"& fi if ! gcloud compute firewall-rules describe --project "${NETWORK_PROJECT}" "${NETWORK}-default-ssh" &>/dev/null; then gcloud compute firewall-rules create "${NETWORK}-default-ssh" \ --project "${NETWORK_PROJECT}" \ --network "${NETWORK}" \ --source-ranges "0.0.0.0/0" \ --allow "tcp:22" & fi } function expand-default-subnetwork() { gcloud compute networks switch-mode "${NETWORK}" \ --mode custom \ --project "${NETWORK_PROJECT}" \ --quiet || true gcloud compute networks subnets expand-ip-range "${NETWORK}" \ --region="${REGION}" \ --project "${NETWORK_PROJECT}" \ --prefix-length=19 \ --quiet } function create-subnetworks() { case ${ENABLE_IP_ALIASES} in true) echo "IP aliases are enabled. Creating subnetworks.";; false) echo "IP aliases are disabled." if [[ "${ENABLE_BIG_CLUSTER_SUBNETS}" = "true" ]]; then if [[ "${PREEXISTING_NETWORK}" != "true" ]]; then expand-default-subnetwork else echo "${color_yellow}Using pre-existing network ${NETWORK}, subnets won't be expanded to /19!${color_norm}" fi elif [[ "${CREATE_CUSTOM_NETWORK:-}" == "true" && "${PREEXISTING_NETWORK}" != "true" ]]; then gcloud compute networks subnets create "${SUBNETWORK}" --project "${NETWORK_PROJECT}" --region "${REGION}" --network "${NETWORK}" --range "${NODE_IP_RANGE}" fi return;; *) echo "${color_red}Invalid argument to ENABLE_IP_ALIASES${color_norm}" exit 1;; esac # Look for the alias subnet, it must exist and have a secondary # range configured. local subnet=$(gcloud beta compute networks subnets describe \ --project "${NETWORK_PROJECT}" \ --region ${REGION} \ ${IP_ALIAS_SUBNETWORK} 2>/dev/null) if [[ -z ${subnet} ]]; then # Only allow auto-creation for default subnets if [[ ${IP_ALIAS_SUBNETWORK} != ${INSTANCE_PREFIX}-subnet-default ]]; then echo "${color_red}Subnetwork ${NETWORK}:${IP_ALIAS_SUBNETWORK} does not exist${color_norm}" exit 1 fi echo "Creating subnet ${NETWORK}:${IP_ALIAS_SUBNETWORK}" gcloud beta compute networks subnets create \ ${IP_ALIAS_SUBNETWORK} \ --description "Automatically generated subnet for ${INSTANCE_PREFIX} cluster. This will be removed on cluster teardown." \ --project "${NETWORK_PROJECT}" \ --network ${NETWORK} \ --region ${REGION} \ --range ${NODE_IP_RANGE} \ --secondary-range "pods-default=${CLUSTER_IP_RANGE}" \ --secondary-range "services-default=${SERVICE_CLUSTER_IP_RANGE}" echo "Created subnetwork ${IP_ALIAS_SUBNETWORK}" else if ! echo ${subnet} | grep --quiet secondaryIpRanges ${subnet}; then echo "${color_red}Subnet ${IP_ALIAS_SUBNETWORK} does not have a secondary range${color_norm}" exit 1 fi fi } # detect-subnetworks sets the SUBNETWORK var if not already set # Assumed vars: # NETWORK # REGION # NETWORK_PROJECT # # Optional vars: # SUBNETWORK # IP_ALIAS_SUBNETWORK function detect-subnetworks() { if [[ -n ${SUBNETWORK:-} ]]; then echo "Using subnet ${SUBNETWORK}" return 0 fi if [[ -n ${IP_ALIAS_SUBNETWORK:-} ]]; then SUBNETWORK=${IP_ALIAS_SUBNETWORK} echo "Using IP Alias subnet ${SUBNETWORK}" return 0 fi SUBNETWORK=$(gcloud beta compute networks subnets list \ --network=${NETWORK} \ --regions=${REGION} \ --project=${NETWORK_PROJECT} \ --limit=1 \ --format='value(name)' 2>/dev/null) if [[ -n ${SUBNETWORK:-} ]]; then echo "Found subnet for region ${REGION} in network ${NETWORK}: ${SUBNETWORK}" return 0 fi echo "${color_red}Could not find subnetwork with region ${REGION}, network ${NETWORK}, and project ${NETWORK_PROJECT}" } function delete-all-firewall-rules() { if fws=$(gcloud compute firewall-rules list --project "${NETWORK_PROJECT}" --filter="network=${NETWORK}" --format="value(name)"); then echo "Deleting firewall rules remaining in network ${NETWORK}: ${fws}" delete-firewall-rules "$fws" else echo "Failed to list firewall rules from the network ${NETWORK}" fi } function delete-firewall-rules() { for fw in $@; do if [[ -n $(gcloud compute firewall-rules --project "${NETWORK_PROJECT}" describe "${fw}" --format='value(name)' 2>/dev/null || true) ]]; then gcloud compute firewall-rules delete --project "${NETWORK_PROJECT}" --quiet "${fw}" & fi done kube::util::wait-for-jobs || { echo -e "${color_red}Failed to delete firewall rules.${color_norm}" >&2 } } function delete-network() { if [[ -n $(gcloud compute networks --project "${NETWORK_PROJECT}" describe "${NETWORK}" --format='value(name)' 2>/dev/null || true) ]]; then if ! gcloud compute networks delete --project "${NETWORK_PROJECT}" --quiet "${NETWORK}"; then echo "Failed to delete network '${NETWORK}'. Listing firewall-rules:" gcloud compute firewall-rules --project "${NETWORK_PROJECT}" list --filter="network=${NETWORK}" return 1 fi fi } function delete-subnetworks() { if [[ ${ENABLE_IP_ALIASES:-} != "true" ]]; then # If running in custom mode network we need to delete subnets mode="$(check-network-mode)" if [[ "${mode}" == "CUSTOM" ]]; then if [[ "${ENABLE_BIG_CLUSTER_SUBNETS}" = "true" ]]; then echo "Deleting default subnets..." # This value should be kept in sync with number of regions. local parallelism=9 gcloud compute networks subnets list --network="${NETWORK}" --project "${NETWORK_PROJECT}" --format='value(region.basename())' | \ xargs -i -P ${parallelism} gcloud --quiet compute networks subnets delete "${NETWORK}" --project "${NETWORK_PROJECT}" --region="{}" || true elif [[ "${CREATE_CUSTOM_NETWORK:-}" == "true" ]]; then echo "Deleting custom subnet..." gcloud --quiet compute networks subnets delete "${SUBNETWORK}" --project "${NETWORK_PROJECT}" --region="${REGION}" || true fi fi return fi # Only delete automatically created subnets. if [[ ${IP_ALIAS_SUBNETWORK} == ${INSTANCE_PREFIX}-subnet-default ]]; then echo "Removing auto-created subnet ${NETWORK}:${IP_ALIAS_SUBNETWORK}" if [[ -n $(gcloud beta compute networks subnets describe \ --project "${NETWORK_PROJECT}" \ --region ${REGION} \ ${IP_ALIAS_SUBNETWORK} 2>/dev/null) ]]; then gcloud beta --quiet compute networks subnets delete \ --project "${NETWORK_PROJECT}" \ --region ${REGION} \ ${IP_ALIAS_SUBNETWORK} fi fi } # Generates SSL certificates for etcd cluster. Uses cfssl program. # # Assumed vars: # KUBE_TEMP: temporary directory # NUM_NODES: #nodes in the cluster # # Args: # $1: host name # $2: CA certificate # $3: CA key # # If CA cert/key is empty, the function will also generate certs for CA. # # Vars set: # ETCD_CA_KEY_BASE64 # ETCD_CA_CERT_BASE64 # ETCD_PEER_KEY_BASE64 # ETCD_PEER_CERT_BASE64 # function create-etcd-certs { local host=${1} local ca_cert=${2:-} local ca_key=${3:-} GEN_ETCD_CA_CERT="${ca_cert}" GEN_ETCD_CA_KEY="${ca_key}" \ generate-etcd-cert "${KUBE_TEMP}/cfssl" "${host}" "peer" "peer" pushd "${KUBE_TEMP}/cfssl" ETCD_CA_KEY_BASE64=$(cat "ca-key.pem" | base64 | tr -d '\r\n') ETCD_CA_CERT_BASE64=$(cat "ca.pem" | gzip | base64 | tr -d '\r\n') ETCD_PEER_KEY_BASE64=$(cat "peer-key.pem" | base64 | tr -d '\r\n') ETCD_PEER_CERT_BASE64=$(cat "peer.pem" | gzip | base64 | tr -d '\r\n') popd } function create-master() { echo "Starting master and configuring firewalls" gcloud compute firewall-rules create "${MASTER_NAME}-https" \ --project "${NETWORK_PROJECT}" \ --network "${NETWORK}" \ --target-tags "${MASTER_TAG}" \ --allow tcp:443 & # We have to make sure the disk is created before creating the master VM, so # run this in the foreground. gcloud compute disks create "${MASTER_NAME}-pd" \ --project "${PROJECT}" \ --zone "${ZONE}" \ --type "${MASTER_DISK_TYPE}" \ --size "${MASTER_DISK_SIZE}" # Create disk for cluster registry if enabled if [[ "${ENABLE_CLUSTER_REGISTRY}" == true && -n "${CLUSTER_REGISTRY_DISK}" ]]; then gcloud compute disks create "${CLUSTER_REGISTRY_DISK}" \ --project "${PROJECT}" \ --zone "${ZONE}" \ --type "${CLUSTER_REGISTRY_DISK_TYPE_GCE}" \ --size "${CLUSTER_REGISTRY_DISK_SIZE}" & fi # Create rule for accessing and securing etcd servers. if ! gcloud compute firewall-rules --project "${NETWORK_PROJECT}" describe "${MASTER_NAME}-etcd" &>/dev/null; then gcloud compute firewall-rules create "${MASTER_NAME}-etcd" \ --project "${NETWORK_PROJECT}" \ --network "${NETWORK}" \ --source-tags "${MASTER_TAG}" \ --allow "tcp:2380,tcp:2381" \ --target-tags "${MASTER_TAG}" & fi # Generate a bearer token for this cluster. We push this separately # from the other cluster variables so that the client (this # computer) can forget it later. This should disappear with # http://issue.k8s.io/3168 KUBELET_TOKEN=$(dd if=/dev/urandom bs=128 count=1 2>/dev/null | base64 | tr -d "=+/" | dd bs=32 count=1 2>/dev/null) KUBE_PROXY_TOKEN=$(dd if=/dev/urandom bs=128 count=1 2>/dev/null | base64 | tr -d "=+/" | dd bs=32 count=1 2>/dev/null) if [[ "${ENABLE_NODE_PROBLEM_DETECTOR:-}" == "standalone" ]]; then NODE_PROBLEM_DETECTOR_TOKEN=$(dd if=/dev/urandom bs=128 count=1 2>/dev/null | base64 | tr -d "=+/" | dd bs=32 count=1 2>/dev/null) fi # Reserve the master's IP so that it can later be transferred to another VM # without disrupting the kubelets. create-static-ip "${MASTER_NAME}-ip" "${REGION}" MASTER_RESERVED_IP=$(gcloud compute addresses describe "${MASTER_NAME}-ip" \ --project "${PROJECT}" --region "${REGION}" -q --format='value(address)') if [[ "${REGISTER_MASTER_KUBELET:-}" == "true" ]]; then KUBELET_APISERVER="${MASTER_RESERVED_IP}" fi KUBERNETES_MASTER_NAME="${MASTER_RESERVED_IP}" MASTER_ADVERTISE_ADDRESS="${MASTER_RESERVED_IP}" create-certs "${MASTER_RESERVED_IP}" create-etcd-certs ${MASTER_NAME} if [[ "${NUM_NODES}" -ge "50" ]]; then # We block on master creation for large clusters to avoid doing too much # unnecessary work in case master start-up fails (like creation of nodes). create-master-instance "${MASTER_RESERVED_IP}" else create-master-instance "${MASTER_RESERVED_IP}" & fi } # Adds master replica to etcd cluster. # # Assumed vars: # REPLICA_NAME # PROJECT # EXISTING_MASTER_NAME # EXISTING_MASTER_ZONE # # $1: etcd client port # $2: etcd internal port # returns the result of ssh command which adds replica function add-replica-to-etcd() { local -r client_port="${1}" local -r internal_port="${2}" gcloud compute ssh "${EXISTING_MASTER_NAME}" \ --project "${PROJECT}" \ --zone "${EXISTING_MASTER_ZONE}" \ --command \ "curl localhost:${client_port}/v2/members -XPOST -H \"Content-Type: application/json\" -d '{\"peerURLs\":[\"https://${REPLICA_NAME}:${internal_port}\"]}' -s" return $? } # Sets EXISTING_MASTER_NAME and EXISTING_MASTER_ZONE variables. # # Assumed vars: # PROJECT # # NOTE: Must be in sync with get-replica-name-regexp function set-existing-master() { local existing_master=$(gcloud compute instances list \ --project "${PROJECT}" \ --filter "name ~ '$(get-replica-name-regexp)'" \ --format "value(name,zone)" | head -n1) EXISTING_MASTER_NAME="$(echo "${existing_master}" | cut -f1)" EXISTING_MASTER_ZONE="$(echo "${existing_master}" | cut -f2)" } function replicate-master() { set-replica-name set-existing-master echo "Experimental: replicating existing master ${EXISTING_MASTER_ZONE}/${EXISTING_MASTER_NAME} as ${ZONE}/${REPLICA_NAME}" # Before we do anything else, we should configure etcd to expect more replicas. if ! add-replica-to-etcd 2379 2380; then echo "Failed to add master replica to etcd cluster." return 1 fi if ! add-replica-to-etcd 4002 2381; then echo "Failed to add master replica to etcd events cluster." return 1 fi # We have to make sure the disk is created before creating the master VM, so # run this in the foreground. gcloud compute disks create "${REPLICA_NAME}-pd" \ --project "${PROJECT}" \ --zone "${ZONE}" \ --type "${MASTER_DISK_TYPE}" \ --size "${MASTER_DISK_SIZE}" local existing_master_replicas="$(get-all-replica-names)" replicate-master-instance "${EXISTING_MASTER_ZONE}" "${EXISTING_MASTER_NAME}" "${existing_master_replicas}" # Add new replica to the load balancer. gcloud compute target-pools add-instances "${MASTER_NAME}" \ --project "${PROJECT}" \ --zone "${ZONE}" \ --instances "${REPLICA_NAME}" } # Detaches old and ataches new external IP to a VM. # # Arguments: # $1 - VM name # $2 - VM zone # $3 - external static IP; if empty will use an ephemeral IP address. function attach-external-ip() { local NAME=${1} local ZONE=${2} local IP_ADDR=${3:-} local ACCESS_CONFIG_NAME=$(gcloud compute instances describe "${NAME}" \ --project "${PROJECT}" --zone "${ZONE}" \ --format="value(networkInterfaces[0].accessConfigs[0].name)") gcloud compute instances delete-access-config "${NAME}" \ --project "${PROJECT}" --zone "${ZONE}" \ --access-config-name "${ACCESS_CONFIG_NAME}" if [[ -z ${IP_ADDR} ]]; then gcloud compute instances add-access-config "${NAME}" \ --project "${PROJECT}" --zone "${ZONE}" \ --access-config-name "${ACCESS_CONFIG_NAME}" else gcloud compute instances add-access-config "${NAME}" \ --project "${PROJECT}" --zone "${ZONE}" \ --access-config-name "${ACCESS_CONFIG_NAME}" \ --address "${IP_ADDR}" fi } # Creates load balancer in front of apiserver if it doesn't exists already. Assumes there's only one # existing master replica. # # Assumes: # PROJECT # MASTER_NAME # ZONE # REGION function create-loadbalancer() { detect-master # Step 0: Return early if LB is already configured. if gcloud compute forwarding-rules describe ${MASTER_NAME} \ --project "${PROJECT}" --region ${REGION} > /dev/null 2>&1; then echo "Load balancer already exists" return fi local EXISTING_MASTER_NAME="$(get-all-replica-names)" local EXISTING_MASTER_ZONE=$(gcloud compute instances list "${EXISTING_MASTER_NAME}" \ --project "${PROJECT}" --format="value(zone)") echo "Creating load balancer in front of an already existing master in ${EXISTING_MASTER_ZONE}" # Step 1: Detach master IP address and attach ephemeral address to the existing master attach-external-ip "${EXISTING_MASTER_NAME}" "${EXISTING_MASTER_ZONE}" # Step 2: Create target pool. gcloud compute target-pools create "${MASTER_NAME}" --project "${PROJECT}" --region "${REGION}" # TODO: We should also add master instances with suffixes gcloud compute target-pools add-instances "${MASTER_NAME}" --instances "${EXISTING_MASTER_NAME}" --project "${PROJECT}" --zone "${EXISTING_MASTER_ZONE}" # Step 3: Create forwarding rule. # TODO: This step can take up to 20 min. We need to speed this up... gcloud compute forwarding-rules create ${MASTER_NAME} \ --project "${PROJECT}" --region ${REGION} \ --target-pool ${MASTER_NAME} --address=${KUBE_MASTER_IP} --ports=443 echo -n "Waiting for the load balancer configuration to propagate..." local counter=0 until $(curl -k -m1 https://${KUBE_MASTER_IP} &> /dev/null); do counter=$((counter+1)) echo -n . if [[ ${counter} -ge 1800 ]]; then echo -e "${color_red}TIMEOUT${color_norm}" >&2 echo -e "${color_red}Load balancer failed to initialize within ${counter} seconds.${color_norm}" >&2 exit 2 fi done echo "DONE" } function create-nodes-firewall() { # Create a single firewall rule for all minions. create-firewall-rule "${NODE_TAG}-all" "${CLUSTER_IP_RANGE}" "${NODE_TAG}" & # Report logging choice (if any). if [[ "${ENABLE_NODE_LOGGING-}" == "true" ]]; then echo "+++ Logging using Fluentd to ${LOGGING_DESTINATION:-unknown}" fi # Wait for last batch of jobs kube::util::wait-for-jobs || { echo -e "${color_red}Some commands failed.${color_norm}" >&2 } } function get-scope-flags() { local scope_flags= if [[ -n "${NODE_SCOPES}" ]]; then scope_flags="--scopes ${NODE_SCOPES}" else scope_flags="--no-scopes" fi echo "${scope_flags}" } function create-nodes-template() { echo "Creating nodes." local scope_flags=$(get-scope-flags) write-node-env local template_name="${NODE_INSTANCE_PREFIX}-template" create-node-instance-template $template_name } # Assumes: # - MAX_INSTANCES_PER_MIG # - NUM_NODES # exports: # - NUM_MIGS function set_num_migs() { local defaulted_max_instances_per_mig=${MAX_INSTANCES_PER_MIG:-1000} if [[ ${defaulted_max_instances_per_mig} -le "0" ]]; then echo "MAX_INSTANCES_PER_MIG cannot be negative. Assuming default 1000" defaulted_max_instances_per_mig=1000 fi export NUM_MIGS=$(((${NUM_NODES} + ${defaulted_max_instances_per_mig} - 1) / ${defaulted_max_instances_per_mig})) } # Assumes: # - NUM_MIGS # - NODE_INSTANCE_PREFIX # - NUM_NODES # - PROJECT # - ZONE function create-nodes() { local template_name="${NODE_INSTANCE_PREFIX}-template" if [[ -z "${HEAPSTER_MACHINE_TYPE:-}" ]]; then local -r nodes="${NUM_NODES}" else local -r nodes=$(( NUM_NODES - 1 )) fi local instances_left=${nodes} #TODO: parallelize this loop to speed up the process for ((i=1; i<=${NUM_MIGS}; i++)); do local group_name="${NODE_INSTANCE_PREFIX}-group-$i" if [[ $i == ${NUM_MIGS} ]]; then # TODO: We don't add a suffix for the last group to keep backward compatibility when there's only one MIG. # We should change it at some point, but note #18545 when changing this. group_name="${NODE_INSTANCE_PREFIX}-group" fi # Spread the remaining number of nodes evenly this_mig_size=$((${instances_left} / (${NUM_MIGS}-${i}+1))) instances_left=$((instances_left-${this_mig_size})) gcloud compute instance-groups managed \ create "${group_name}" \ --project "${PROJECT}" \ --zone "${ZONE}" \ --base-instance-name "${group_name}" \ --size "${this_mig_size}" \ --template "$template_name" || true; gcloud compute instance-groups managed wait-until-stable \ "${group_name}" \ --zone "${ZONE}" \ --project "${PROJECT}" || true; done if [[ -n "${HEAPSTER_MACHINE_TYPE:-}" ]]; then echo "Creating a special node for heapster with machine-type ${HEAPSTER_MACHINE_TYPE}" create-heapster-node fi } # Assumes: # - NODE_INSTANCE_PREFIX # - PROJECT # - NETWORK_PROJECT # - REGION # - ZONE # - HEAPSTER_MACHINE_TYPE # - NODE_DISK_TYPE # - NODE_DISK_SIZE # - NODE_IMAGE_PROJECT # - NODE_IMAGE # - NODE_SERVICE_ACCOUNT # - NODE_TAG # - NETWORK # - ENABLE_IP_ALIASES # - SUBNETWORK # - IP_ALIAS_SIZE function create-heapster-node() { local gcloud="gcloud" if [[ "${ENABLE_IP_ALIASES:-}" == 'true' ]]; then gcloud="gcloud beta" fi local network=$(make-gcloud-network-argument \ "${NETWORK_PROJECT}" \ "${REGION}" \ "${NETWORK}" \ "${SUBNETWORK:-}" \ "" \ "${ENABLE_IP_ALIASES:-}" \ "${IP_ALIAS_SIZE:-}") ${gcloud} compute instances \ create "${NODE_INSTANCE_PREFIX}-heapster" \ --project "${PROJECT}" \ --zone "${ZONE}" \ --machine-type="${HEAPSTER_MACHINE_TYPE}" \ --boot-disk-type "${NODE_DISK_TYPE}" \ --boot-disk-size "${NODE_DISK_SIZE}" \ --image-project="${NODE_IMAGE_PROJECT}" \ --image "${NODE_IMAGE}" \ --service-account "${NODE_SERVICE_ACCOUNT}" \ --tags "${NODE_TAG}" \ ${network} \ $(get-scope-flags) \ --metadata-from-file "$(get-node-instance-metadata)" } # Assumes: # - NUM_MIGS # - NODE_INSTANCE_PREFIX # - PROJECT # - ZONE # - AUTOSCALER_MAX_NODES # - AUTOSCALER_MIN_NODES # Exports # - AUTOSCALER_MIG_CONFIG function create-cluster-autoscaler-mig-config() { # Each MIG must have at least one node, so the min number of nodes # must be greater or equal to the number of migs. if [[ ${AUTOSCALER_MIN_NODES} -lt 0 ]]; then echo "AUTOSCALER_MIN_NODES must be greater or equal 0" exit 2 fi # Each MIG must have at least one node, so the min number of nodes # must be greater or equal to the number of migs. if [[ ${AUTOSCALER_MAX_NODES} -lt ${NUM_MIGS} ]]; then echo "AUTOSCALER_MAX_NODES must be greater or equal ${NUM_MIGS}" exit 2 fi # The code assumes that the migs were created with create-nodes # function which tries to evenly spread nodes across the migs. AUTOSCALER_MIG_CONFIG="" local left_min=${AUTOSCALER_MIN_NODES} local left_max=${AUTOSCALER_MAX_NODES} for ((i=1; i<=${NUM_MIGS}; i++)); do local group_name="${NODE_INSTANCE_PREFIX}-group-$i" if [[ $i == ${NUM_MIGS} ]]; then # TODO: We don't add a suffix for the last group to keep backward compatibility when there's only one MIG. # We should change it at some point, but note #18545 when changing this. group_name="${NODE_INSTANCE_PREFIX}-group" fi this_mig_min=$((${left_min}/(${NUM_MIGS}-${i}+1))) this_mig_max=$((${left_max}/(${NUM_MIGS}-${i}+1))) left_min=$((left_min-$this_mig_min)) left_max=$((left_max-$this_mig_max)) local mig_url="https://www.googleapis.com/compute/v1/projects/${PROJECT}/zones/${ZONE}/instanceGroups/${group_name}" AUTOSCALER_MIG_CONFIG="${AUTOSCALER_MIG_CONFIG} --nodes=${this_mig_min}:${this_mig_max}:${mig_url}" done AUTOSCALER_MIG_CONFIG="${AUTOSCALER_MIG_CONFIG} --scale-down-enabled=${AUTOSCALER_ENABLE_SCALE_DOWN}" } # Assumes: # - NUM_MIGS # - NODE_INSTANCE_PREFIX # - PROJECT # - ZONE # - ENABLE_CLUSTER_AUTOSCALER # - AUTOSCALER_MAX_NODES # - AUTOSCALER_MIN_NODES function create-autoscaler-config() { # Create autoscaler for nodes configuration if requested if [[ "${ENABLE_CLUSTER_AUTOSCALER}" == "true" ]]; then create-cluster-autoscaler-mig-config echo "Using autoscaler config: ${AUTOSCALER_MIG_CONFIG} ${AUTOSCALER_EXPANDER_CONFIG}" fi } function check-cluster() { detect-node-names detect-master echo "Waiting up to ${KUBE_CLUSTER_INITIALIZATION_TIMEOUT} seconds for cluster initialization." echo echo " This will continually check to see if the API for kubernetes is reachable." echo " This may time out if there was some uncaught error during start up." echo # curl in mavericks is borked. secure="" if which sw_vers >& /dev/null; then if [[ $(sw_vers | grep ProductVersion | awk '{print $2}') = "10.9."* ]]; then secure="--insecure" fi fi local start_time=$(date +%s) local curl_out=$(mktemp) kube::util::trap_add "rm -f ${curl_out}" EXIT until curl --cacert "${CERT_DIR}/pki/ca.crt" \ -H "Authorization: Bearer ${KUBE_BEARER_TOKEN}" \ ${secure} \ --max-time 5 --fail \ "https://${KUBE_MASTER_IP}/api/v1/pods" > "${curl_out}" 2>&1; do local elapsed=$(($(date +%s) - ${start_time})) if [[ ${elapsed} -gt ${KUBE_CLUSTER_INITIALIZATION_TIMEOUT} ]]; then echo -e "${color_red}Cluster failed to initialize within ${KUBE_CLUSTER_INITIALIZATION_TIMEOUT} seconds.${color_norm}" >&2 echo "Last output from querying API server follows:" >&2 echo "-----------------------------------------------------" >&2 cat "${curl_out}" >&2 echo "-----------------------------------------------------" >&2 exit 2 fi printf "." sleep 2 done echo "Kubernetes cluster created." export KUBE_CERT="${CERT_DIR}/pki/issued/kubecfg.crt" export KUBE_KEY="${CERT_DIR}/pki/private/kubecfg.key" export CA_CERT="${CERT_DIR}/pki/ca.crt" export CONTEXT="${PROJECT}_${INSTANCE_PREFIX}" ( umask 077 # Update the user's kubeconfig to include credentials for this apiserver. create-kubeconfig ) # ensures KUBECONFIG is set get-kubeconfig-basicauth echo echo -e "${color_green}Kubernetes cluster is running. The master is running at:" echo echo -e "${color_yellow} https://${KUBE_MASTER_IP}" echo echo -e "${color_green}The user name and password to use is located in ${KUBECONFIG}.${color_norm}" echo } # Removes master replica from etcd cluster. # # Assumed vars: # REPLICA_NAME # PROJECT # EXISTING_MASTER_NAME # EXISTING_MASTER_ZONE # # $1: etcd client port # returns the result of ssh command which removes replica function remove-replica-from-etcd() { local -r port="${1}" [[ -n "${EXISTING_MASTER_NAME}" ]] || return gcloud compute ssh "${EXISTING_MASTER_NAME}" \ --project "${PROJECT}" \ --zone "${EXISTING_MASTER_ZONE}" \ --command \ "curl -s localhost:${port}/v2/members/\$(curl -s localhost:${port}/v2/members -XGET | sed 's/{\\\"id/\n/g' | grep ${REPLICA_NAME}\\\" | cut -f 3 -d \\\") -XDELETE -L 2>/dev/null" local -r res=$? echo "Removing etcd replica, name: ${REPLICA_NAME}, port: ${port}, result: ${res}" return "${res}" } # Delete a kubernetes cluster. This is called from test-teardown. # # Assumed vars: # MASTER_NAME # NODE_INSTANCE_PREFIX # ZONE # This function tears down cluster resources 10 at a time to avoid issuing too many # API calls and exceeding API quota. It is important to bring down the instances before bringing # down the firewall rules and routes. function kube-down() { local -r batch=200 detect-project detect-node-names # For INSTANCE_GROUPS echo "Bringing down cluster" set +e # Do not stop on error if [[ "${KUBE_DELETE_NODES:-}" != "false" ]]; then # Get the name of the managed instance group template before we delete the # managed instance group. (The name of the managed instance group template may # change during a cluster upgrade.) local templates=$(get-template "${PROJECT}") for group in ${INSTANCE_GROUPS[@]:-}; do if gcloud compute instance-groups managed describe "${group}" --project "${PROJECT}" --zone "${ZONE}" &>/dev/null; then gcloud compute instance-groups managed delete \ --project "${PROJECT}" \ --quiet \ --zone "${ZONE}" \ "${group}" & fi done # Wait for last batch of jobs kube::util::wait-for-jobs || { echo -e "Failed to delete instance group(s)." >&2 } for template in ${templates[@]:-}; do if gcloud compute instance-templates describe --project "${PROJECT}" "${template}" &>/dev/null; then gcloud compute instance-templates delete \ --project "${PROJECT}" \ --quiet \ "${template}" fi done # Delete the special heapster node (if it exists). if [[ -n "${HEAPSTER_MACHINE_TYPE:-}" ]]; then local -r heapster_machine_name="${NODE_INSTANCE_PREFIX}-heapster" if gcloud compute instances describe "${heapster_machine_name}" --zone "${ZONE}" --project "${PROJECT}" &>/dev/null; then # Now we can safely delete the VM. gcloud compute instances delete \ --project "${PROJECT}" \ --quiet \ --delete-disks all \ --zone "${ZONE}" \ "${heapster_machine_name}" fi fi fi local -r REPLICA_NAME="${KUBE_REPLICA_NAME:-$(get-replica-name)}" set-existing-master # Un-register the master replica from etcd and events etcd. remove-replica-from-etcd 2379 remove-replica-from-etcd 4002 # Delete the master replica (if it exists). if gcloud compute instances describe "${REPLICA_NAME}" --zone "${ZONE}" --project "${PROJECT}" &>/dev/null; then # If there is a load balancer in front of apiservers we need to first update its configuration. if gcloud compute target-pools describe "${MASTER_NAME}" --region "${REGION}" --project "${PROJECT}" &>/dev/null; then gcloud compute target-pools remove-instances "${MASTER_NAME}" \ --project "${PROJECT}" \ --zone "${ZONE}" \ --instances "${REPLICA_NAME}" fi # Now we can safely delete the VM. gcloud compute instances delete \ --project "${PROJECT}" \ --quiet \ --delete-disks all \ --zone "${ZONE}" \ "${REPLICA_NAME}" fi # Delete the master replica pd (possibly leaked by kube-up if master create failed). # TODO(jszczepkowski): remove also possibly leaked replicas' pds local -r replica_pd="${REPLICA_NAME:-${MASTER_NAME}}-pd" if gcloud compute disks describe "${replica_pd}" --zone "${ZONE}" --project "${PROJECT}" &>/dev/null; then gcloud compute disks delete \ --project "${PROJECT}" \ --quiet \ --zone "${ZONE}" \ "${replica_pd}" fi # Delete disk for cluster registry if enabled if [[ "${ENABLE_CLUSTER_REGISTRY}" == true && -n "${CLUSTER_REGISTRY_DISK}" ]]; then if gcloud compute disks describe "${CLUSTER_REGISTRY_DISK}" --zone "${ZONE}" --project "${PROJECT}" &>/dev/null; then gcloud compute disks delete \ --project "${PROJECT}" \ --quiet \ --zone "${ZONE}" \ "${CLUSTER_REGISTRY_DISK}" fi fi # Check if this are any remaining master replicas. local REMAINING_MASTER_COUNT=$(gcloud compute instances list \ --project "${PROJECT}" \ --filter="name ~ '$(get-replica-name-regexp)'" \ --format "value(zone)" | wc -l) # In the replicated scenario, if there's only a single master left, we should also delete load balancer in front of it. if [[ "${REMAINING_MASTER_COUNT}" -eq 1 ]]; then if gcloud compute forwarding-rules describe "${MASTER_NAME}" --region "${REGION}" --project "${PROJECT}" &>/dev/null; then detect-master local REMAINING_REPLICA_NAME="$(get-all-replica-names)" local REMAINING_REPLICA_ZONE=$(gcloud compute instances list "${REMAINING_REPLICA_NAME}" \ --project "${PROJECT}" --format="value(zone)") gcloud compute forwarding-rules delete \ --project "${PROJECT}" \ --region "${REGION}" \ --quiet \ "${MASTER_NAME}" attach-external-ip "${REMAINING_REPLICA_NAME}" "${REMAINING_REPLICA_ZONE}" "${KUBE_MASTER_IP}" gcloud compute target-pools delete \ --project "${PROJECT}" \ --region "${REGION}" \ --quiet \ "${MASTER_NAME}" fi fi # If there are no more remaining master replicas, we should delete all remaining network resources. if [[ "${REMAINING_MASTER_COUNT}" -eq 0 ]]; then # Delete firewall rule for the master, etcd servers, and nodes. delete-firewall-rules "${MASTER_NAME}-https" "${MASTER_NAME}-etcd" "${NODE_TAG}-all" # Delete the master's reserved IP if gcloud compute addresses describe "${MASTER_NAME}-ip" --region "${REGION}" --project "${PROJECT}" &>/dev/null; then gcloud compute addresses delete \ --project "${PROJECT}" \ --region "${REGION}" \ --quiet \ "${MASTER_NAME}-ip" fi fi if [[ "${KUBE_DELETE_NODES:-}" != "false" ]]; then # Find out what minions are running. local -a minions minions=( $(gcloud compute instances list \ --project "${PROJECT}" \ --filter="name ~ '${NODE_INSTANCE_PREFIX}-.+' AND zone:(${ZONE})" \ --format='value(name)') ) # If any minions are running, delete them in batches. while (( "${#minions[@]}" > 0 )); do echo Deleting nodes "${minions[*]::${batch}}" gcloud compute instances delete \ --project "${PROJECT}" \ --quiet \ --delete-disks boot \ --zone "${ZONE}" \ "${minions[@]::${batch}}" minions=( "${minions[@]:${batch}}" ) done fi # If there are no more remaining master replicas: delete routes, pd for influxdb and update kubeconfig if [[ "${REMAINING_MASTER_COUNT}" -eq 0 ]]; then # Delete routes. local -a routes # Clean up all routes w/ names like "-" # e.g. "kubernetes-12345678-90ab-cdef-1234-567890abcdef". The name is # determined by the node controller on the master. # Note that this is currently a noop, as synchronously deleting the node MIG # first allows the master to cleanup routes itself. local TRUNCATED_PREFIX="${INSTANCE_PREFIX:0:26}" routes=( $(gcloud compute routes list --project "${NETWORK_PROJECT}" \ --filter="name ~ '${TRUNCATED_PREFIX}-.{8}-.{4}-.{4}-.{4}-.{12}'" \ --format='value(name)') ) while (( "${#routes[@]}" > 0 )); do echo Deleting routes "${routes[*]::${batch}}" gcloud compute routes delete \ --project "${NETWORK_PROJECT}" \ --quiet \ "${routes[@]::${batch}}" routes=( "${routes[@]:${batch}}" ) done # Delete persistent disk for influx-db. if gcloud compute disks describe "${INSTANCE_PREFIX}"-influxdb-pd --zone "${ZONE}" --project "${PROJECT}" &>/dev/null; then gcloud compute disks delete \ --project "${PROJECT}" \ --quiet \ --zone "${ZONE}" \ "${INSTANCE_PREFIX}"-influxdb-pd fi # Delete all remaining firewall rules and network. delete-firewall-rules \ "${CLUSTER_NAME}-default-internal-master" \ "${CLUSTER_NAME}-default-internal-node" \ "${NETWORK}-default-ssh" \ "${NETWORK}-default-internal" # Pre-1.5 clusters if [[ "${KUBE_DELETE_NETWORK}" == "true" ]]; then # Delete all remaining firewall rules in the network. delete-all-firewall-rules || true delete-subnetworks || true delete-network || true # might fail if there are leaked resources that reference the network fi # If there are no more remaining master replicas, we should update kubeconfig. export CONTEXT="${PROJECT}_${INSTANCE_PREFIX}" clear-kubeconfig else # If some master replicas remain: cluster has been changed, we need to re-validate it. echo "... calling validate-cluster" >&2 # Override errexit (validate-cluster) && validate_result="$?" || validate_result="$?" # We have two different failure modes from validate cluster: # - 1: fatal error - cluster won't be working correctly # - 2: weak error - something went wrong, but cluster probably will be working correctly # We just print an error message in case 2). if [[ "${validate_result}" -eq 1 ]]; then exit 1 elif [[ "${validate_result}" -eq 2 ]]; then echo "...ignoring non-fatal errors in validate-cluster" >&2 fi fi set -e } # Prints name of one of the master replicas in the current zone. It will be either # just MASTER_NAME or MASTER_NAME with a suffix for a replica (see get-replica-name-regexp). # # Assumed vars: # PROJECT # ZONE # MASTER_NAME # # NOTE: Must be in sync with get-replica-name-regexp and set-replica-name. function get-replica-name() { echo $(gcloud compute instances list \ --project "${PROJECT}" \ --filter="name ~ '$(get-replica-name-regexp)' AND zone:(${ZONE})" \ --format "value(name)" | head -n1) } # Prints comma-separated names of all of the master replicas in all zones. # # Assumed vars: # PROJECT # MASTER_NAME # # NOTE: Must be in sync with get-replica-name-regexp and set-replica-name. function get-all-replica-names() { echo $(gcloud compute instances list \ --project "${PROJECT}" \ --filter="name ~ '$(get-replica-name-regexp)'" \ --format "value(name)" | tr "\n" "," | sed 's/,$//') } # Prints the number of all of the master replicas in all zones. # # Assumed vars: # MASTER_NAME function get-master-replicas-count() { detect-project local num_masters=$(gcloud compute instances list \ --project "${PROJECT}" \ --filter="name ~ '$(get-replica-name-regexp)'" \ --format "value(zone)" | wc -l) echo -n "${num_masters}" } # Prints regexp for full master machine name. In a cluster with replicated master, # VM names may either be MASTER_NAME or MASTER_NAME with a suffix for a replica. function get-replica-name-regexp() { echo "${MASTER_NAME}(-...)?" } # Sets REPLICA_NAME to a unique name for a master replica that will match # expected regexp (see get-replica-name-regexp). # # Assumed vars: # PROJECT # ZONE # MASTER_NAME # # Sets: # REPLICA_NAME function set-replica-name() { local instances=$(gcloud compute instances list \ --project "${PROJECT}" \ --filter="name ~ '$(get-replica-name-regexp)'" \ --format "value(name)") suffix="" while echo "${instances}" | grep "${suffix}" &>/dev/null; do suffix="$(date | md5sum | head -c3)" done REPLICA_NAME="${MASTER_NAME}-${suffix}" } # Gets the instance template for given NODE_INSTANCE_PREFIX. It echos the template name so that the function # output can be used. # Assumed vars: # NODE_INSTANCE_PREFIX # # $1: project function get-template() { gcloud compute instance-templates list \ --filter="name ~ '${NODE_INSTANCE_PREFIX}-template(-(${KUBE_RELEASE_VERSION_DASHED_REGEX}|${KUBE_CI_VERSION_DASHED_REGEX}))?'" \ --project="${1}" --format='value(name)' } # Checks if there are any present resources related kubernetes cluster. # # Assumed vars: # MASTER_NAME # NODE_INSTANCE_PREFIX # ZONE # REGION # Vars set: # KUBE_RESOURCE_FOUND function check-resources() { detect-project detect-node-names echo "Looking for already existing resources" KUBE_RESOURCE_FOUND="" if [[ -n "${INSTANCE_GROUPS[@]:-}" ]]; then KUBE_RESOURCE_FOUND="Managed instance groups ${INSTANCE_GROUPS[@]}" return 1 fi if gcloud compute instance-templates describe --project "${PROJECT}" "${NODE_INSTANCE_PREFIX}-template" &>/dev/null; then KUBE_RESOURCE_FOUND="Instance template ${NODE_INSTANCE_PREFIX}-template" return 1 fi if gcloud compute instances describe --project "${PROJECT}" "${MASTER_NAME}" --zone "${ZONE}" &>/dev/null; then KUBE_RESOURCE_FOUND="Kubernetes master ${MASTER_NAME}" return 1 fi if gcloud compute disks describe --project "${PROJECT}" "${MASTER_NAME}"-pd --zone "${ZONE}" &>/dev/null; then KUBE_RESOURCE_FOUND="Persistent disk ${MASTER_NAME}-pd" return 1 fi if gcloud compute disks describe --project "${PROJECT}" "${CLUSTER_REGISTRY_DISK}" --zone "${ZONE}" &>/dev/null; then KUBE_RESOURCE_FOUND="Persistent disk ${CLUSTER_REGISTRY_DISK}" return 1 fi # Find out what minions are running. local -a minions minions=( $(gcloud compute instances list \ --project "${PROJECT}" \ --filter="name ~ '${NODE_INSTANCE_PREFIX}-.+' AND zone:(${ZONE})" \ --format='value(name)') ) if (( "${#minions[@]}" > 0 )); then KUBE_RESOURCE_FOUND="${#minions[@]} matching matching ${NODE_INSTANCE_PREFIX}-.+" return 1 fi if gcloud compute firewall-rules describe --project "${NETWORK_PROJECT}" "${MASTER_NAME}-https" &>/dev/null; then KUBE_RESOURCE_FOUND="Firewall rules for ${MASTER_NAME}-https" return 1 fi if gcloud compute firewall-rules describe --project "${NETWORK_PROJECT}" "${NODE_TAG}-all" &>/dev/null; then KUBE_RESOURCE_FOUND="Firewall rules for ${MASTER_NAME}-all" return 1 fi local -a routes routes=( $(gcloud compute routes list --project "${NETWORK_PROJECT}" \ --filter="name ~ '${INSTANCE_PREFIX}-minion-.{4}'" --format='value(name)') ) if (( "${#routes[@]}" > 0 )); then KUBE_RESOURCE_FOUND="${#routes[@]} routes matching ${INSTANCE_PREFIX}-minion-.{4}" return 1 fi if gcloud compute addresses describe --project "${PROJECT}" "${MASTER_NAME}-ip" --region "${REGION}" &>/dev/null; then KUBE_RESOURCE_FOUND="Master's reserved IP" return 1 fi # No resources found. return 0 } # Prepare to push new binaries to kubernetes cluster # $1 - whether prepare push to node function prepare-push() { local node="${1-}" #TODO(dawnchen): figure out how to upgrade a Container Linux node if [[ "${node}" == "true" && "${NODE_OS_DISTRIBUTION}" != "debian" ]]; then echo "Updating nodes in a kubernetes cluster with ${NODE_OS_DISTRIBUTION} is not supported yet." >&2 exit 1 fi if [[ "${node}" != "true" && "${MASTER_OS_DISTRIBUTION}" != "debian" ]]; then echo "Updating the master in a kubernetes cluster with ${MASTER_OS_DISTRIBUTION} is not supported yet." >&2 exit 1 fi OUTPUT=${KUBE_ROOT}/_output/logs mkdir -p ${OUTPUT} kube::util::ensure-temp-dir detect-project detect-master detect-node-names get-kubeconfig-basicauth get-kubeconfig-bearertoken # Make sure we have the tar files staged on Google Storage tars_from_version # Prepare node env vars and update MIG template if [[ "${node}" == "true" ]]; then write-node-env local scope_flags=$(get-scope-flags) # Ugly hack: Since it is not possible to delete instance-template that is currently # being used, create a temp one, then delete the old one and recreate it once again. local tmp_template_name="${NODE_INSTANCE_PREFIX}-template-tmp" create-node-instance-template $tmp_template_name local template_name="${NODE_INSTANCE_PREFIX}-template" for group in ${INSTANCE_GROUPS[@]:-}; do gcloud compute instance-groups managed \ set-instance-template "${group}" \ --template "$tmp_template_name" \ --zone "${ZONE}" \ --project "${PROJECT}" || true; done gcloud compute instance-templates delete \ --project "${PROJECT}" \ --quiet \ "$template_name" || true create-node-instance-template "$template_name" for group in ${INSTANCE_GROUPS[@]:-}; do gcloud compute instance-groups managed \ set-instance-template "${group}" \ --template "$template_name" \ --zone "${ZONE}" \ --project "${PROJECT}" || true; done gcloud compute instance-templates delete \ --project "${PROJECT}" \ --quiet \ "$tmp_template_name" || true fi } # Push binaries to kubernetes master function push-master() { echo "Updating master metadata ..." write-master-env prepare-startup-script add-instance-metadata-from-file "${KUBE_MASTER}" "kube-env=${KUBE_TEMP}/master-kube-env.yaml" "startup-script=${KUBE_TEMP}/configure-vm.sh" echo "Pushing to master (log at ${OUTPUT}/push-${KUBE_MASTER}.log) ..." cat ${KUBE_TEMP}/configure-vm.sh | gcloud compute ssh --ssh-flag="-o LogLevel=quiet" --project "${PROJECT}" --zone "${ZONE}" "${KUBE_MASTER}" --command "sudo bash -s -- --push" &> ${OUTPUT}/push-"${KUBE_MASTER}".log } # Push binaries to kubernetes node function push-node() { node=${1} echo "Updating node ${node} metadata... " prepare-startup-script add-instance-metadata-from-file "${node}" "kube-env=${KUBE_TEMP}/node-kube-env.yaml" "startup-script=${KUBE_TEMP}/configure-vm.sh" echo "Start upgrading node ${node} (log at ${OUTPUT}/push-${node}.log) ..." cat ${KUBE_TEMP}/configure-vm.sh | gcloud compute ssh --ssh-flag="-o LogLevel=quiet" --project "${PROJECT}" --zone "${ZONE}" "${node}" --command "sudo bash -s -- --push" &> ${OUTPUT}/push-"${node}".log } # Push binaries to kubernetes cluster function kube-push() { # Disable this until it's fixed. # See https://github.com/kubernetes/kubernetes/issues/17397 echo "./cluster/kube-push.sh is currently not supported in GCE." echo "Please use ./cluster/gce/upgrade.sh." exit 1 prepare-push true push-master for (( i=0; i<${#NODE_NAMES[@]}; i++)); do push-node "${NODE_NAMES[$i]}" & done kube::util::wait-for-jobs || { echo -e "${color_red}Some commands failed.${color_norm}" >&2 } # TODO(zmerlynn): Re-create instance-template with the new # node-kube-env. This isn't important until the node-ip-range issue # is solved (because that's blocking automatic dynamic nodes from # working). The node-kube-env has to be composed with the KUBELET_TOKEN # and KUBE_PROXY_TOKEN. Ideally we would have # http://issue.k8s.io/3168 # implemented before then, though, so avoiding this mess until then. echo echo "Kubernetes cluster is running. The master is running at:" echo echo " https://${KUBE_MASTER_IP}" echo echo "The user name and password to use is located in ~/.kube/config" echo } # ----------------------------------------------------------------------------- # Cluster specific test helpers used from hack/e2e.go # Execute prior to running tests to build a release if required for env. # # Assumed Vars: # KUBE_ROOT function test-build-release() { # Make a release "${KUBE_ROOT}/build/release.sh" } # Execute prior to running tests to initialize required structure. This is # called from hack/e2e.go only when running -up. # # Assumed vars: # Variables from config.sh function test-setup() { # Detect the project into $PROJECT if it isn't set detect-project if [[ ${MULTIZONE:-} == "true" && -n ${E2E_ZONES:-} ]]; then for KUBE_GCE_ZONE in ${E2E_ZONES}; do KUBE_GCE_ZONE="${KUBE_GCE_ZONE}" KUBE_USE_EXISTING_MASTER="${KUBE_USE_EXISTING_MASTER:-}" "${KUBE_ROOT}/cluster/kube-up.sh" KUBE_USE_EXISTING_MASTER="true" # For subsequent zones we use the existing master done else "${KUBE_ROOT}/cluster/kube-up.sh" fi # Open up port 80 & 8080 so common containers on minions can be reached # TODO(roberthbailey): Remove this once we are no longer relying on hostPorts. local start=`date +%s` gcloud compute firewall-rules create \ --project "${NETWORK_PROJECT}" \ --target-tags "${NODE_TAG}" \ --allow tcp:80,tcp:8080 \ --network "${NETWORK}" \ "${NODE_TAG}-${INSTANCE_PREFIX}-http-alt" 2> /dev/null || true # As there is no simple way to wait longer for this operation we need to manually # wait some additional time (20 minutes altogether). while ! gcloud compute firewall-rules describe --project "${NETWORK_PROJECT}" "${NODE_TAG}-${INSTANCE_PREFIX}-http-alt" 2> /dev/null; do if [[ $(($start + 1200)) -lt `date +%s` ]]; then echo -e "${color_red}Failed to create firewall ${NODE_TAG}-${INSTANCE_PREFIX}-http-alt in ${NETWORK_PROJECT}" >&2 exit 1 fi sleep 5 done # Open up the NodePort range # TODO(justinsb): Move to main setup, if we decide whether we want to do this by default. start=`date +%s` gcloud compute firewall-rules create \ --project "${NETWORK_PROJECT}" \ --target-tags "${NODE_TAG}" \ --allow tcp:30000-32767,udp:30000-32767 \ --network "${NETWORK}" \ "${NODE_TAG}-${INSTANCE_PREFIX}-nodeports" 2> /dev/null || true # As there is no simple way to wait longer for this operation we need to manually # wait some additional time (20 minutes altogether). while ! gcloud compute firewall-rules describe --project "${NETWORK_PROJECT}" "${NODE_TAG}-${INSTANCE_PREFIX}-nodeports" 2> /dev/null; do if [[ $(($start + 1200)) -lt `date +%s` ]]; then echo -e "${color_red}Failed to create firewall ${NODE_TAG}-${INSTANCE_PREFIX}-nodeports in ${PROJECT}" >&2 exit 1 fi sleep 5 done } # Execute after running tests to perform any required clean-up. This is called # from hack/e2e.go function test-teardown() { detect-project echo "Shutting down test cluster in background." delete-firewall-rules \ "${NODE_TAG}-${INSTANCE_PREFIX}-http-alt" \ "${NODE_TAG}-${INSTANCE_PREFIX}-nodeports" if [[ ${MULTIZONE:-} == "true" && -n ${E2E_ZONES:-} ]]; then local zones=( ${E2E_ZONES} ) # tear them down in reverse order, finally tearing down the master too. for ((zone_num=${#zones[@]}-1; zone_num>0; zone_num--)); do KUBE_GCE_ZONE="${zones[zone_num]}" KUBE_USE_EXISTING_MASTER="true" "${KUBE_ROOT}/cluster/kube-down.sh" done KUBE_GCE_ZONE="${zones[0]}" KUBE_USE_EXISTING_MASTER="false" "${KUBE_ROOT}/cluster/kube-down.sh" else "${KUBE_ROOT}/cluster/kube-down.sh" fi } # SSH to a node by name ($1) and run a command ($2). function ssh-to-node() { local node="$1" local cmd="$2" # Loop until we can successfully ssh into the box for try in {1..5}; do if gcloud compute ssh --ssh-flag="-o LogLevel=quiet" --ssh-flag="-o ConnectTimeout=30" --project "${PROJECT}" --zone="${ZONE}" "${node}" --command "echo test > /dev/null"; then break fi sleep 5 done # Then actually try the command. gcloud compute ssh --ssh-flag="-o LogLevel=quiet" --ssh-flag="-o ConnectTimeout=30" --project "${PROJECT}" --zone="${ZONE}" "${node}" --command "${cmd}" } # Perform preparations required to run e2e tests function prepare-e2e() { detect-project } # Writes configure-vm.sh to a temporary location with comments stripped. GCE # limits the size of metadata fields to 32K, and stripping comments is the # easiest way to buy us a little more room. function prepare-startup-script() { # Find a standard sed instance (and ensure that the command works as expected on a Mac). kube::util::ensure-gnu-sed ${SED} '/^\s*#\([^!].*\)*$/ d' ${KUBE_ROOT}/cluster/gce/configure-vm.sh > ${KUBE_TEMP}/configure-vm.sh }