KubeZero/containers/admin/v1.21/upgrade_121.sh

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#!/bin/bash -e
VERSION="v1.21.8"
[ -n "$DEBUG" ] && DEBUG=1
# unset any AWS_DEFAULT_PROFILE as it will break aws-iam-auth
unset AWS_DEFAULT_PROFILE
nodes=$(kubectl get nodes -l node-role.kubernetes.io/control-plane -o json | jq .items[].metadata.name -r)
for node in $nodes; do
echo "Deploying node upgrade job on $node..."
cat <<EOF | sed -e "s/__node__/$node/g" | kubectl apply -f -
apiVersion: v1
kind: Pod
metadata:
name: kubezero-upgrade-${VERSION//.}-node-__node__
namespace: kube-system
labels:
app: kubezero-upgrade-node
spec:
hostNetwork: true
containers:
- name: kubezero-admin
image: public.ecr.aws/zero-downtime/kubezero-admin:${VERSION}
imagePullPolicy: Always
command: ["kubezero.sh"]
args:
- node-upgrade
env:
- name: DEBUG
value: "$DEBUG"
- name: NODE_NAME
valueFrom:
fieldRef:
fieldPath: spec.nodeName
volumeMounts:
- name: host
mountPath: /host
- name: workdir
mountPath: /tmp
securityContext:
capabilities:
add: ["SYS_CHROOT"]
volumes:
- name: host
hostPath:
path: /
type: Directory
- name: workdir
emptyDir: {}
nodeSelector:
kubernetes.io/hostname: __node__
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule
restartPolicy: Never
EOF
kubectl wait pod kubezero-upgrade-${VERSION//.}-node-$node -n kube-system --timeout 120s --for=condition=initialized 2>/dev/null
while true; do
kubectl logs kubezero-upgrade-${VERSION//.}-node-$node -n kube-system -f 2>/dev/null && break
sleep 3
done
kubectl delete pod kubezero-upgrade-${VERSION//.}-node-$node -n kube-system
done
echo "Deploying cluster upgrade job ..."
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Pod
metadata:
name: kubezero-upgrade-${VERSION//.}
namespace: kube-system
labels:
app: kubezero-upgrade
spec:
hostNetwork: true
#hostIPC: true
#hostPID: true
containers:
- name: kubezero-admin
image: public.ecr.aws/zero-downtime/kubezero-admin:${VERSION}
imagePullPolicy: Always
command: ["kubezero.sh"]
args:
- upgrade
env:
- name: DEBUG
value: "$DEBUG"
- name: NODE_NAME
valueFrom:
fieldRef:
fieldPath: spec.nodeName
volumeMounts:
- name: host
mountPath: /host
- name: workdir
mountPath: /tmp
securityContext:
capabilities:
add: ["SYS_CHROOT"]
volumes:
- name: host
hostPath:
path: /
type: Directory
- name: workdir
emptyDir: {}
nodeSelector:
node-role.kubernetes.io/control-plane: ""
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule
restartPolicy: Never
EOF
kubectl wait pod kubezero-upgrade-${VERSION//.} -n kube-system --timeout 120s --for=condition=initialized 2>/dev/null
while true; do
kubectl logs kubezero-upgrade-${VERSION//.} -n kube-system -f 2>/dev/null && break
sleep 3
done
kubectl delete pod kubezero-upgrade-${VERSION//.} -n kube-system