enableISCSI.yml

apiVersion: v1
kind: Namespace
metadata:
  name: iscsi-node
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: enable-iscsid-daemonset
  namespace: iscsi-node
  labels:
    app: enable-iscsid
    type: daemonset
spec:
  selector:
    matchLabels:
      app: enable-iscsid
      type: daemonset
  template:
    metadata:
      labels:
        app: enable-iscsid
        type: daemonset
    spec:
      hostPID: true
      containers:
        - name: enable-iscsid-daemonset
          image: debian
          volumeMounts:
            - name: systemd-config-volume
              mountPath: /mnt/
            - mountPath: /host
              name: noderoot
          securityContext:
            privileged: true
          command: ["/bin/sh", "-c", "--"]
          args: ["while true; do /mnt/watchdog.sh; done;"]
      volumes:
        - name: systemd-config-volume
          configMap:
            defaultMode: 0755
            name: systemd-server-conf
        - name: systemd-storage-volume
          emptyDir: {}
        - name: noderoot
          hostPath:
            path: /
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: systemd-server-conf
  namespace: iscsi-node
  labels:
    name: systemd-server-conf
data:
  watchdog.sh: |-
    #!/bin/sh
    chroot /host /usr/bin/sh <<"EOT"
    if ! /usr/bin/systemctl is-active --quiet iscsid
    then
        echo "Start Serice"
        /usr/bin/systemctl start iscsid
    else
        echo "Service already "$(/usr/bin/systemctl is-active iscsid)
    fi
    if ! /usr/bin/systemctl is-enabled --quiet iscsid
    then
        echo "Enable Service"
        /usr/bin/systemctl enable iscsid &> /dev/null
    else
        echo "Service already "$(/usr/bin/systemctl is-enabled iscsid)
    fi
    EOT
    sleep 60