rancher-partner-charts/charts/hashicorp/consul/templates/cni-daemonset.yaml

{{- if (and (.Values.connectInject.cni.enabled) (not .Values.connectInject.enabled)) }}{{ fail "connectInject.enabled must be true if connectInject.cni.enabled is true" }}{{ end -}}
{{- if .Values.connectInject.cni.enabled }}
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: {{ template "consul.fullname" . }}-cni
  namespace: {{ default .Release.Namespace .Values.connectInject.cni.namespace }}
  labels:
    app: {{ template "consul.name" . }}
    chart: {{ template "consul.chart" . }}
    heritage: {{ .Release.Service }}
    release: {{ .Release.Name }}
    component: cni 
spec:
  {{- if .Values.connectInject.cni.updateStrategy }}
  updateStrategy:
    {{ tpl .Values.connectInject.cni.updateStrategy . | nindent 4 | trim }}
  {{- end }}
  selector:
    matchLabels:
      app: {{ template "consul.name" . }}
      chart: {{ template "consul.chart" . }}
      release: {{ .Release.Name }}
      component: cni
  template:
    metadata:
      labels:
        app: {{ template "consul.name" . }}
        chart: {{ template "consul.chart" . }}
        release: {{ .Release.Name }}
        component: cni
      annotations:
        consul.hashicorp.com/connect-inject: "false"
    spec:
      # consul-cni only runs on linux operating systems
      nodeSelector:
        kubernetes.io/os: linux
      tolerations:
        # Mark the pod as a critical add-on for rescheduling.
        - key: CriticalAddonsOnly
          operator: Exists
        - effect: NoExecute
          operator: Exists
      # Tell kubernetes that this daemonset is critical so that it will be scheduled on a new node before other pods
      priorityClassName: system-node-critical
      serviceAccountName: {{ template "consul.fullname" . }}-cni
      {{- if not .Values.global.openshift.enabled }}
      securityContext:
        {{- toYaml .Values.connectInject.cni.securityContext | nindent 8 -}}
      {{- end }}
      # Minimize downtime during a rolling upgrade or deletion; tell Kubernetes to do a "force
      # deletion": https://kubernetes.io/docs/concepts/workloads/pods/pod/#termination-of-pods.
      terminationGracePeriodSeconds: 10
      containers:
        # This container installs the consul CNI binaries and CNI network config file on each node
        - name: install-cni
          image: {{ .Values.global.imageK8S }}
          securityContext:
            privileged: true
          command:
            - consul-k8s-control-plane
            - install-cni
            - -log-level={{ default .Values.global.logLevel .Values.connectInject.cni.logLevel }}
            - -cni-bin-dir={{ .Values.connectInject.cni.cniBinDir }}
            - -cni-net-dir={{ .Values.connectInject.cni.cniNetDir }}
            - -multus={{ .Values.connectInject.cni.multus }}
          {{- with .Values.connectInject.cni.resources }}
          resources:
            {{- toYaml . | nindent 12 }}
          {{- end }}
          volumeMounts:
            - mountPath: {{ .Values.connectInject.cni.cniBinDir }}
              name: cni-bin-dir
            - mountPath: {{ .Values.connectInject.cni.cniNetDir }}
              name: cni-net-dir
      volumes:
        # Used to install CNI.
        - name: cni-bin-dir
          hostPath:
            path: {{ .Values.connectInject.cni.cniBinDir }} 
        - name: cni-net-dir
          hostPath:
            path: {{ .Values.connectInject.cni.cniNetDir }} 
{{- end }}