Update kubelet patch restarting script to check running version
This adds a version check to kubelet patch restarting script. This will only restart kubelet if the running kubelet is v1.21.8. This script requires modification depending on specific kubelet versions that are actually being patched. TESTING: - PASS: Verified restart of kubelet and isolcpus_plugin services with designer patch install and remove for only v1.21.8 Story: 2008760 Task: 44541 Signed-off-by: Jim Gauld <james.gauld@windriver.com> Change-Id: I335f2a2e088ead55d32749c07e217a96d53c09a3
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@ -26,6 +26,12 @@
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#
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declare -i GLOBAL_RC=$PATCH_STATUS_OK
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#
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# Declare subset of kubernetes versions we want to patch.
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# This is customized for the particular patch.
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#
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declare -a PATCH_RESTART_VERSIONS=( "v1.21.8" )
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# kubelet doesn't run on storage nodes
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if is_storage
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then
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@ -38,6 +44,26 @@ then
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systemctl status kubelet.service|grep -q "Active: active (running)"
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if [ $? -eq 0 ]
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then
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# Obtain current kubelet version
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KVER=$(kubectl version --short=true 2>/dev/null | grep -oP 'Client Version: \K\S+')
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# Check current kubelet version matches any expected restart versions
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FOUND=0
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for val in ${PATCH_RESTART_VERSIONS[@]}; do
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if [ "${val}" == "${KVER}" ]; then
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FOUND=1
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break
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fi
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done
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if [ ${FOUND} -eq 1 ]; then
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loginfo "$0: Current kubelet ${KVER} found in: ${PATCH_RESTART_VERSIONS[@]}"
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else
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# do not restart versions that do not require patching
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loginfo "$0: Current kubelet ${KVER} not found in" \
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"${PATCH_RESTART_VERSIONS[@]}, skipping kubelet restart"
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exit $GLOBAL_RC
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fi
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# issue a systemd daemon-reload once the rpms have been installed
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# and before the processes have been restarted.
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systemctl daemon-reload
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