ceph-csi/scripts/rook.sh
Niels de Vos ed033153ea ci: gather logs when deploying Rook fails
Log a few commands that help troubleshooting Rook deployment issues.
This might need to get extended with more commands.

Updates: #1636
Signed-off-by: Niels de Vos <ndevos@redhat.com>
2020-11-24 14:53:38 +00:00

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7.7 KiB
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Executable File

#!/bin/bash -E
ROOK_VERSION=${ROOK_VERSION:-"v1.2.7"}
ROOK_DEPLOY_TIMEOUT=${ROOK_DEPLOY_TIMEOUT:-300}
ROOK_URL="https://raw.githubusercontent.com/rook/rook/${ROOK_VERSION}/cluster/examples/kubernetes/ceph"
ROOK_BLOCK_POOL_NAME=${ROOK_BLOCK_POOL_NAME:-"newrbdpool"}
ROOK_CEPH_CLUSTER_VERSION="v14.2.10"
KUBECTL_RETRY=5
KUBECTL_RETRY_DELAY=10
trap log_errors ERR
# log_errors is called on exit (see 'trap' above) and tries to provide
# sufficient information to debug deployment problems
function log_errors() {
# enable verbose execution
set -x
kubectl get nodes
kubectl -n rook-ceph get events
kubectl -n rook-ceph describe pods
kubectl -n rook-ceph logs -l app=rook-ceph-operator
kubectl -n rook-ceph get CephClusters -oyaml
kubectl -n rook-ceph get CephFilesystems -oyaml
kubectl -n rook-ceph get CephBlockPools -oyaml
# this function should not return, a fatal error was caught!
exit 1
}
rook_version() {
echo "${ROOK_VERSION#v}" | cut -d'.' -f"${1}"
}
kubectl_retry() {
local retries=0 action="${1}" ret=0 stdout stderr
shift
# temporary files for kubectl output
stdout=$(mktemp rook-kubectl-stdout.XXXXXXXX)
stderr=$(mktemp rook-kubectl-stderr.XXXXXXXX)
while ! kubectl "${action}" "${@}" 2>"${stderr}" 1>"${stdout}"
do
# in case of a failure when running "create", ignore errors with "AlreadyExists"
if [ "${action}" == 'create' ]
then
# count lines in stderr that do not have "AlreadyExists"
ret=$(grep -cvw 'AlreadyExists' "${stderr}")
if [ "${ret}" -eq 0 ]
then
# Succes! stderr is empty after removing all "AlreadyExists" lines.
break
fi
fi
retries=$((retries+1))
if [ ${retries} -eq ${KUBECTL_RETRY} ]
then
ret=1
break
fi
sleep ${KUBECTL_RETRY_DELAY}
done
# write output so that calling functions can consume it
cat "${stdout}" > /dev/stdout
cat "${stderr}" > /dev/stderr
rm -f "${stdout}" "${stderr}"
return ${ret}
}
function deploy_rook() {
kubectl_retry create -f "${ROOK_URL}/common.yaml"
kubectl_retry create -f "${ROOK_URL}/operator.yaml"
# find out the rook version to decide on the ceph cluster image to be used
ROOK_MAJOR=$(rook_version 1)
ROOK_MINOR=$(rook_version 2)
if { [ "${ROOK_MAJOR}" -eq 1 ] && [ "${ROOK_MINOR}" -le 2 ]; }; then
ROOK_CEPH_CLUSTER_VERSION_IMAGE_PATH="image: ceph/ceph:${ROOK_CEPH_CLUSTER_VERSION}"
# upgrade ceph cluster version to 14.2.10 to support CephFS snapshot functionalities.
TEMP_DIR="$(mktemp -d)"
curl -o "${TEMP_DIR}"/cluster-test.yaml "${ROOK_URL}/cluster-test.yaml"
sed -i "s|image.*|${ROOK_CEPH_CLUSTER_VERSION_IMAGE_PATH}|g" "${TEMP_DIR}"/cluster-test.yaml
cat "${TEMP_DIR}"/cluster-test.yaml
kubectl_retry create -f "${TEMP_DIR}/cluster-test.yaml"
rm -rf "${TEMP_DIR}"
else
# add "mon_warn_on_pool_no_redundancy = false" to ceph.conf if missing
# see https://github.com/rook/rook/pull/5925 for upstream status
TEMP_DIR="$(mktemp -d)"
curl -o "${TEMP_DIR}"/cluster-test.yaml "${ROOK_URL}/cluster-test.yaml"
if ! grep -q mon_warn_on_pool_no_redundancy "${TEMP_DIR}"/cluster-test.yaml; then
sed -i '/osd_pool_default_size =/a \ mon_warn_on_pool_no_redundancy = false' "${TEMP_DIR}"/cluster-test.yaml
fi
kubectl_retry create -f "${TEMP_DIR}/cluster-test.yaml"
rm -rf "${TEMP_DIR}"
fi
kubectl_retry create -f "${ROOK_URL}/toolbox.yaml"
kubectl_retry create -f "${ROOK_URL}/filesystem-test.yaml"
kubectl_retry create -f "${ROOK_URL}/pool-test.yaml"
# Check if CephCluster is empty
if ! kubectl_retry -n rook-ceph get cephclusters -oyaml | grep 'items: \[\]' &>/dev/null; then
check_ceph_cluster_health
fi
# Check if CephFileSystem is empty
if ! kubectl_retry -n rook-ceph get cephfilesystems -oyaml | grep 'items: \[\]' &>/dev/null; then
check_mds_stat
fi
# Check if CephBlockPool is empty
if ! kubectl_retry -n rook-ceph get cephblockpools -oyaml | grep 'items: \[\]' &>/dev/null; then
check_rbd_stat ""
fi
}
function teardown_rook() {
kubectl delete -f "${ROOK_URL}/pool-test.yaml"
kubectl delete -f "${ROOK_URL}/filesystem-test.yaml"
kubectl delete -f "${ROOK_URL}/toolbox.yaml"
kubectl delete -f "${ROOK_URL}/cluster-test.yaml"
kubectl delete -f "${ROOK_URL}/operator.yaml"
kubectl delete -f "${ROOK_URL}/common.yaml"
}
function create_block_pool() {
curl -o newpool.yaml "${ROOK_URL}/pool-test.yaml"
sed -i "s/replicapool/$ROOK_BLOCK_POOL_NAME/g" newpool.yaml
kubectl_retry create -f "./newpool.yaml"
rm -f "./newpool.yaml"
check_rbd_stat "$ROOK_BLOCK_POOL_NAME"
}
function delete_block_pool() {
curl -o newpool.yaml "${ROOK_URL}/pool-test.yaml"
sed -i "s/replicapool/$ROOK_BLOCK_POOL_NAME/g" newpool.yaml
kubectl delete -f "./newpool.yaml"
rm -f "./newpool.yaml"
}
function check_ceph_cluster_health() {
for ((retry = 0; retry <= ROOK_DEPLOY_TIMEOUT; retry = retry + 5)); do
echo "Wait for rook deploy... ${retry}s" && sleep 5
CEPH_STATE=$(kubectl_retry -n rook-ceph get cephclusters -o jsonpath='{.items[0].status.state}')
CEPH_HEALTH=$(kubectl_retry -n rook-ceph get cephclusters -o jsonpath='{.items[0].status.ceph.health}')
echo "Checking CEPH cluster state: [$CEPH_STATE]"
if [ "$CEPH_STATE" = "Created" ]; then
if [ "$CEPH_HEALTH" = "HEALTH_OK" ]; then
echo "Creating CEPH cluster is done. [$CEPH_HEALTH]"
break
fi
fi
done
if [ "$retry" -gt "$ROOK_DEPLOY_TIMEOUT" ]; then
echo "[Timeout] CEPH cluster not in a healthy state (timeout)"
exit 1
fi
echo ""
}
function check_mds_stat() {
for ((retry = 0; retry <= ROOK_DEPLOY_TIMEOUT; retry = retry + 5)); do
FS_NAME=$(kubectl_retry -n rook-ceph get cephfilesystems.ceph.rook.io -ojsonpath='{.items[0].metadata.name}')
echo "Checking MDS ($FS_NAME) stats... ${retry}s" && sleep 5
ACTIVE_COUNT=$(kubectl_retry -n rook-ceph get cephfilesystems myfs -ojsonpath='{.spec.metadataServer.activeCount}')
ACTIVE_COUNT_NUM=$((ACTIVE_COUNT + 0))
echo "MDS ($FS_NAME) active_count: [$ACTIVE_COUNT_NUM]"
if ((ACTIVE_COUNT_NUM < 1)); then
continue
else
if kubectl_retry -n rook-ceph get pod -l rook_file_system=myfs | grep Running &>/dev/null; then
echo "Filesystem ($FS_NAME) is successfully created..."
break
fi
fi
done
if [ "$retry" -gt "$ROOK_DEPLOY_TIMEOUT" ]; then
echo "[Timeout] Failed to get ceph filesystem pods"
exit 1
fi
echo ""
}
function check_rbd_stat() {
for ((retry = 0; retry <= ROOK_DEPLOY_TIMEOUT; retry = retry + 5)); do
if [ -z "$1" ]; then
RBD_POOL_NAME=$(kubectl_retry -n rook-ceph get cephblockpools -ojsonpath='{.items[0].metadata.name}')
else
RBD_POOL_NAME=$1
fi
echo "Checking RBD ($RBD_POOL_NAME) stats... ${retry}s" && sleep 5
TOOLBOX_POD=$(kubectl_retry -n rook-ceph get pods -l app=rook-ceph-tools -o jsonpath='{.items[0].metadata.name}')
TOOLBOX_POD_STATUS=$(kubectl_retry -n rook-ceph get pod "$TOOLBOX_POD" -ojsonpath='{.status.phase}')
[[ "$TOOLBOX_POD_STATUS" != "Running" ]] && \
{ echo "Toolbox POD ($TOOLBOX_POD) status: [$TOOLBOX_POD_STATUS]"; continue; }
if kubectl_retry exec -n rook-ceph "$TOOLBOX_POD" -it -- rbd pool stats "$RBD_POOL_NAME" &>/dev/null; then
echo "RBD ($RBD_POOL_NAME) is successfully created..."
break
fi
done
if [ "$retry" -gt "$ROOK_DEPLOY_TIMEOUT" ]; then
echo "[Timeout] Failed to get RBD pool stats"
exit 1
fi
echo ""
}
case "${1:-}" in
deploy)
deploy_rook
;;
teardown)
teardown_rook
;;
create-block-pool)
create_block_pool
;;
delete-block-pool)
delete_block_pool
;;
*)
echo " $0 [command]
Available Commands:
deploy Deploy a rook
teardown Teardown a rook
create-block-pool Create a rook block pool
delete-block-pool Delete a rook block pool
" >&2
;;
esac