72 lines
1.8 KiB
YAML
72 lines
1.8 KiB
YAML
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# services/mailu/vip-controller.yaml
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: vip-controller
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namespace: mailu-mailserver
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: Role
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metadata:
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name: vip-controller-role
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namespace: mailu-mailserver
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rules:
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- apiGroups: ["apps"]
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resources: ["deployments"]
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verbs: ["get", "list", "patch", "update"]
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: RoleBinding
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metadata:
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name: vip-controller-binding
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namespace: mailu-mailserver
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: Role
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name: vip-controller-role
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subjects:
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- kind: ServiceAccount
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name: vip-controller
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namespace: mailu-mailserver
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---
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apiVersion: apps/v1
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kind: DaemonSet
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metadata:
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name: vip-controller
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namespace: mailu-mailserver
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spec:
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selector:
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matchLabels:
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app: vip-controller
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template:
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metadata:
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labels:
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app: vip-controller
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spec:
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serviceAccountName: vip-controller
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hostNetwork: true
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nodeSelector:
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mailu.bstein.dev/vip: "true"
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containers:
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- name: vip-controller
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image: lachlanevenson/k8s-kubectl:latest
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imagePullPolicy: IfNotPresent
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command:
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- /bin/sh
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- -c
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args:
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- |
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set -e
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while true; do
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if ip addr show end0 | grep -q 'inet 192\.168\.22\.9/32'; then
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NODE=$(hostname)
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echo "VIP found on node ${NODE}."
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kubectl patch deployment mailu-front -n mailu-mailserver --type='merge' \
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-p "{\"spec\":{\"template\":{\"spec\":{\"nodeSelector\":{\"kubernetes.io/hostname\":\"${NODE}\"}}}}}"
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else
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echo "No VIP on node ${HOSTNAME}."
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fi
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sleep 60
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done
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