system-upgrade-controller.yaml

apiVersion: v1
kind: Namespace
metadata:
  name: system-upgrade
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: system-upgrade
  namespace: system-upgrade
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: system-upgrade
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
- kind: ServiceAccount
  name: system-upgrade
  namespace: system-upgrade
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: default-controller-env
  namespace: system-upgrade
data:
  SYSTEM_UPGRADE_CONTROLLER_DEBUG: "false"
  SYSTEM_UPGRADE_CONTROLLER_THREADS: "2"
  SYSTEM_UPGRADE_JOB_ACTIVE_DEADLINE_SECONDS: "900"
  SYSTEM_UPGRADE_JOB_BACKOFF_LIMIT: "99"
  SYSTEM_UPGRADE_JOB_IMAGE_PULL_POLICY: "Always"
  SYSTEM_UPGRADE_JOB_KUBECTL_IMAGE: "rancher/kubectl:v1.19.7"
  SYSTEM_UPGRADE_JOB_PRIVILEGED: "true"
  SYSTEM_UPGRADE_JOB_TTL_SECONDS_AFTER_FINISH: "900"
  SYSTEM_UPGRADE_PLAN_POLLING_INTERVAL: "15m"
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: system-upgrade-controller
  namespace: system-upgrade
spec:
  selector:
    matchLabels:
      upgrade.cattle.io/controller: system-upgrade-controller
  template:
    metadata:
      labels:
        upgrade.cattle.io/controller: system-upgrade-controller # necessary to avoid drain
    spec:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: "node-role.kubernetes.io/master"
                operator: In
                values:
                - "true"
      serviceAccountName: system-upgrade
      tolerations:
      - key: "CriticalAddonsOnly"
        operator: "Exists"
      - key: "node-role.kubernetes.io/master"
        operator: "Exists"
        effect: "NoSchedule"
      containers:
      - name: system-upgrade-controller
        image: rancher/system-upgrade-controller:v0.10.0
        imagePullPolicy: IfNotPresent
        envFrom:
        - configMapRef:
            name: default-controller-env
        env:
        - name: SYSTEM_UPGRADE_CONTROLLER_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.labels['upgrade.cattle.io/controller']
        - name: SYSTEM_UPGRADE_CONTROLLER_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        volumeMounts:
        - name: etc-ssl
          mountPath: /etc/ssl
        - name: tmp
          mountPath: /tmp
      volumes:
      - name: etc-ssl
        hostPath:
          path: /etc/ssl
          type: Directory
      - name: tmp
        emptyDir: {}