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deploy: adjust minikube deployment for RWOP support

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The ReadWriteOncePod feature gate need to be enabled only when we
are operating on kube 1.22 or above cluster. This commit adds the
logic to parse the kubernetes cluster at time of minikube deployment
and if it is above v1.22, enable the RWOP feature gate

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
This commit is contained in:
Humble Chirammal 2022-01-07 14:17:03 +05:30 committed by mergify[bot]
parent 4a69378698
commit 233ac8f936
1 changed files with 16 additions and 0 deletions
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16
scripts/minikube.sh
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@ -43,6 +43,15 @@ minikube_version() {
echo "${MINIKUBE_VERSION}" | sed 's/^v//' | cut -d'.' -f"${1}" echo "${MINIKUBE_VERSION}" | sed 's/^v//' | cut -d'.' -f"${1}"
} }
# parse the kubernetes version, return the digit passed as argument
# v1.21.0 -> kube_version 1 -> 1
# v1.21.0 -> kube_version 2 -> 21
# v1.21.0 -> kube_version 3 -> 0
kube_version() {
echo "${KUBE_VERSION}" | sed 's/^v//' | cut -d'.' -f"${1}"
}
# detect if there is a minikube executable available already. If there is none, # detect if there is a minikube executable available already. If there is none,
# fallback to using /usr/local/bin/minikube, as that is where # fallback to using /usr/local/bin/minikube, as that is where
# install_minikube() will place it too. # install_minikube() will place it too.
@ -203,6 +212,13 @@ up)
disable_storage_addons disable_storage_addons
# get kubernetes version we are operating on and accordingly enable feature gates
KUBE_MAJOR=$(kube_version 1)
KUBE_MINOR=$(kube_version 2)
if [ "${KUBE_MAJOR}" -eq 1 ] && [ "${KUBE_MINOR}" -ge 22 ];then
# if kubernetes version is greater than 1.22 enable RWOP feature gate
K8S_FEATURE_GATES="${K8S_FEATURE_GATES},ReadWriteOncePod=true"
fi
# shellcheck disable=SC2086 # 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} ${EXTRA_CONFIG_PSP} --wait-timeout="${MINIKUBE_WAIT_TIMEOUT}" --wait="${MINIKUBE_WAIT}" --delete-on-failure ${DISK_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} ${EXTRA_CONFIG_PSP} --wait-timeout="${MINIKUBE_WAIT_TIMEOUT}" --wait="${MINIKUBE_WAIT}" --delete-on-failure ${DISK_CONFIG}