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e2e: fetch volume metrics from Kubelet

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Test if metrics are available at all. The actual values are a little
difficult to validate.

BlockMode volumes support metrics since Kubernetes 1.22.

See-also: kubernetes/kubernetes#97972
Signed-off-by: Niels de Vos <ndevos@redhat.com>
This commit is contained in:
Niels de Vos
2021-01-14 08:47:57 +01:00
committed by mergify[bot]
parent 25d0a1cfc0
commit 2b9f6c3598
4 changed files with 81 additions and 4 deletions
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11
scripts/minikube.sh
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@ -165,7 +165,7 @@ fi
K8S_FEATURE_GATES=${K8S_FEATURE_GATES:-"ExpandCSIVolumes=true"}
#extra-config for kube https://minikube.sigs.k8s.io/docs/reference/configuration/kubernetes/
EXTRA_CONFIG=${EXTRA_CONFIG:-"--extra-config=apiserver.enable-admission-plugins=PodSecurityPolicy"}
EXTRA_CONFIG_PSP="--extra-config=apiserver.enable-admission-plugins=PodSecurityPolicy"
# kubelet.resolv-conf needs to point to a file, not a symlink
# the default minikube VM has /etc/resolv.conf -> /run/systemd/resolve/resolv.conf
@ -182,6 +182,9 @@ EXTRA_CONFIG="${EXTRA_CONFIG} --extra-config=kubelet.resolv-conf=${RESOLV_CONF}"
#extra Rook configuration
ROOK_BLOCK_POOL_NAME=${ROOK_BLOCK_POOL_NAME:-"newrbdpool"}
# enable read-only anonymous access to kubelet metrics
EXTRA_CONFIG="${EXTRA_CONFIG} --extra-config=kubelet.read-only-port=10255"
if [[ "${KUBE_VERSION}" == "latest" ]]; then
# update the version string from latest with the real version
KUBE_VERSION=$(curl -L https://storage.googleapis.com/kubernetes-release/release/stable.txt 2> /dev/null)
@ -205,16 +208,16 @@ up)
if minikube_supports_psp; then
enable_psp
# shellcheck disable=SC2086
${minikube} start --force --memory="${MEMORY}" --cpus="${CPUS}" -b kubeadm --kubernetes-version="${KUBE_VERSION}" --driver="${VM_DRIVER}" --feature-gates="${K8S_FEATURE_GATES}" --cni="${CNI}" ${EXTRA_CONFIG}
${minikube} start --force --memory="${MEMORY}" --cpus="${CPUS}" -b kubeadm --kubernetes-version="${KUBE_VERSION}" --driver="${VM_DRIVER}" --feature-gates="${K8S_FEATURE_GATES}" --cni="${CNI}" ${EXTRA_CONFIG} ${EXTRA_CONFIG_PSP}
else
# This is a workaround to fix psp issues in minikube >1.6.2 and <1.11.0
# shellcheck disable=SC2086
${minikube} start --force --memory="${MEMORY}" --cpus="${CPUS}" -b kubeadm --kubernetes-version="${KUBE_VERSION}" --driver="${VM_DRIVER}" --feature-gates="${K8S_FEATURE_GATES}" --cni="${CNI}"
${minikube} start --force --memory="${MEMORY}" --cpus="${CPUS}" -b kubeadm --kubernetes-version="${KUBE_VERSION}" --driver="${VM_DRIVER}" --feature-gates="${K8S_FEATURE_GATES}" --cni="${CNI}" ${EXTRA_CONFIG}
DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
${minikube} kubectl -- apply -f "$DIR"/psp.yaml
${minikube} stop
# shellcheck disable=SC2086
${minikube} start --force --memory="${MEMORY}" --cpus="${CPUS}" -b kubeadm --kubernetes-version="${KUBE_VERSION}" --driver="${VM_DRIVER}" --feature-gates="${K8S_FEATURE_GATES}" --cni="${CNI}" ${EXTRA_CONFIG}
${minikube} start --force --memory="${MEMORY}" --cpus="${CPUS}" -b kubeadm --kubernetes-version="${KUBE_VERSION}" --driver="${VM_DRIVER}" --feature-gates="${K8S_FEATURE_GATES}" --cni="${CNI}" ${EXTRA_CONFIG} ${EXTRA_CONFIG_PSP}
fi
# create a link so the default dataDirHostPath will work for this