helm-charts-hardened/charts/spire-ha-agent/templates/daemonset.yaml

{{- $podSecurityContext := fromYaml (include "spire-lib.podsecuritycontext" .) }}
{{- $mainSecurityContext := deepCopy .Values.securityContext }}
{{- $socketAlternateNames := index (include "spire-ha-agent.socket-alternate-names" . | fromYaml) "names" }}
{{- $socketPath := include "spire-ha-agent.socket-path" . }}
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: {{ include "spire-ha-agent.fullname" . | quote }}
  namespace: {{ include "spire-ha-agent.namespace" . | quote}}
  labels:
    {{- include "spire-ha-agent.labels" . | nindent 4 }}
    app.kubernetes.io/component: spire-ha-agent
spec:
  selector:
    matchLabels:
      {{- include "spire-ha-agent.selectorLabels" . | nindent 6 }}
      app.kubernetes.io/component: spire-ha-agent
  {{- with .Values.updateStrategy }}
  updateStrategy:
    {{- if not (has .type (list "RollingUpdate" "OnDelete")) }}
    {{- fail "updateStrategy.type can only be RollingUpdate or OnDelete"}}
    {{- end }}
    type: {{ .type }}
    {{- if eq .type "RollingUpdate" }}
    rollingUpdate:
      maxUnavailable: {{ .rollingUpdate.maxUnavailable }}
    {{- end }}
  {{- end }}
  template:
    metadata:
      annotations:
        kubectl.kubernetes.io/default-container: spire-ha-agent
      labels:
        {{- include "spire-ha-agent.selectorLabels" . | nindent 8 }}
        app.kubernetes.io/component: spire-ha-agent
        {{- with .Values.podLabels }}
          {{- toYaml . | nindent 8 }}
        {{- end }}
    spec:
      {{- with .Values.imagePullSecrets }}
      imagePullSecrets:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      hostPID: true
      hostNetwork: true
      dnsPolicy: ClusterFirstWithHostNet
      serviceAccountName: {{ include "spire-ha-agent.serviceAccountName" . | quote }}
      securityContext:
        {{- toYaml $podSecurityContext | nindent 8 }}
      {{- include "spire-lib.default_node_priority_class_name" . | nindent 6 }}
      {{- if ne (len .Values.hostAliases) 0 }}
      hostAliases:
        {{- toYaml .Values.hostAliases | nindent 8 }}
      {{- end }}
      initContainers:
        {{- if not .Values.vsock }}
        {{-   if gt (len $socketAlternateNames) 0 }}
        - name: ensure-alternate-names
          image: {{ template "spire-lib.image" (dict "image" .Values.socketAlternate.image "global" .Values.global) }}
          imagePullPolicy: {{ .Values.socketAlternate.image.pullPolicy | quote }}
          command: ["bash", "-xc"]
          {{- /* 1. Look for symlinks pointing at the wrong place and remove them. 2. Make symlinks that don't exist. 3. If new socket is pointing at an existing symlink, remove old symlink. */}}
          args:
            - |
              cd {{ $socketPath | dir }}
              {{- range $socketAlternateNames }}
              L=`readlink {{ . }}`
              [ "x$L" != "x{{ $socketPath | base }}" ] && rm -f {{ . }}
              [ ! -L {{ . }} ] && ln -s {{ $socketPath | base }} {{ . }}
              {{- end }}
              [ -L {{ $socketPath | base }} ] && rm -f {{ $socketPath | base }}
              exit 0
          resources:
            {{- toYaml .Values.socketAlternate.resources | nindent 12 }}
          volumeMounts:
            - name: spire-ha-agent-socket-dir
              mountPath: {{ $socketPath | dir }}
          securityContext:
            runAsUser: 0
            runAsGroup: 0
        {{-   end }}
        {{- else }}
        - name: setup-shell
          image: {{ template "spire-lib.image" (dict "image" .Values.cid2PID.busybox.image "global" .Values.global) }}
          imagePullPolicy: {{ .Values.cid2PID.busybox.image.pullPolicy | quote }}
          command: ["sh", "-xc"]
          args:
            - |
              cp -a /bin/busybox /data
          resources:
            {{- toYaml .Values.cid2PID.busybox.resources | nindent 12 }}
          volumeMounts:
            - name: cid2pid
              mountPath: /data
          securityContext:
            runAsUser: 0
            runAsGroup: 0
        - name: setup-cid2pid
          image: {{ template "spire-lib.image" (dict "image" .Values.cid2PID.image "global" .Values.global) }}
          imagePullPolicy: {{ .Values.cid2PID.image.pullPolicy | quote }}
          command: ["/data/busybox", "sh", "-xc"]
          args:
            - |
              /data/busybox cp -a /usr/bin/cid2pid /data
              /data/busybox rm -f /data/busybox
          resources:
            {{- toYaml .Values.cid2PID.resources | nindent 12 }}
          volumeMounts:
            - name: cid2pid
              mountPath: /data
          securityContext:
            runAsUser: 0
            runAsGroup: 0
        {{- end }}
        {{- if gt (len .Values.initContainers) 0 }}
        {{- toYaml .Values.initContainers | nindent 8 }}
        {{- end }}
      containers:
        - name: {{ .Chart.Name | quote }}
          image: {{ template "spire-lib.image" (dict "appVersion" $.Chart.AppVersion "image" .Values.image "global" .Values.global) }}
          imagePullPolicy: {{ .Values.image.pullPolicy | quote }}
          securityContext:
            privileged: true
#FIXME read permission to api socket
            runAsUser: 0
            runAsGroup: 0
        #{- $mainSecurityContext | toYaml | nindent 12 }}
          env:
          {{- if .Values.singleSocket }}
            - name: SPIRE_HA_AGENT_SINGLE
              value: enabled
          {{- end }}
          {{- if .Values.vsock }}
            - name: SPIRE_HA_AGENT_VSOCK
              value: enabled
            - name: SPIRE_HA_AGENT_PORT
              value: {{ .Values.port | quote }}
          {{- end }}
          {{- with .Values.extraEnvVars }}
          {{- toYaml . | nindent 12 }}
          {{- end }}
          volumeMounts:
#            - name: spire-ha-agent-persistence
#              mountPath: /var/lib/spire
            {{- if .Values.vsock }}
            - name: cid2pid
              mountPath: /usr/bin/cid2pid
              subPath: cid2pid
              readOnly: true
            {{- else }}
            - name: spire-ha-agent-socket-dir
              mountPath: /tmp/spire-ha-agent/public
              readOnly: false
            {{- end }}
            - name: spire-ha-admin-socket-dir-upstream-a
              mountPath: /var/run/spire/agent/sockets/a/private
            {{- if not .Values.singleSocket }}
            - name: spire-ha-admin-socket-dir-upstream-b
              mountPath: /var/run/spire/agent/sockets/b/private
            {{- end }}
            - name: dev
              mountPath: /dev
            {{- if gt (len .Values.extraVolumeMounts) 0 }}
            {{- toYaml .Values.extraVolumeMounts | nindent 12 }}
            {{- end }}
          resources:
            {{- toYaml .Values.resources | nindent 12 }}
        {{- if gt (len .Values.extraContainers) 0 }}
        {{- toYaml .Values.extraContainers | nindent 8 }}
        {{- end }}
      {{- with .Values.nodeSelector }}
      nodeSelector:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.affinity }}
      affinity:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.tolerations }}
      tolerations:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      volumes:
        {{- if not .Values.vsock }}
        - name: spire-ha-agent-socket-dir
          hostPath:
            path: {{ $socketPath | dir }}
            type: DirectoryOrCreate
        {{- end }}
        - name: spire-ha-admin-socket-dir-upstream-a
          hostPath:
            path: {{ if .Values.singleSocket }}{{ .Values.sockets.single.admin.hostPath }}{{ else }}{{ .Values.sockets.a.admin.hostPath }}{{ end }}
            type: DirectoryOrCreate
        {{- if not .Values.singleSocket }}
        - name: spire-ha-admin-socket-dir-upstream-b
          hostPath:
            path: {{ .Values.sockets.b.admin.hostPath }}
            type: DirectoryOrCreate
        {{- end }}
        - name: dev
          hostPath:
            path: /dev
        - name: cid2pid
          emtpyDir: {}
        {{- if gt (len .Values.extraVolumes) 0 }}
        {{- toYaml .Values.extraVolumes | nindent 8 }}
        {{- end }}