openstack-helm/rabbitmq/templates/statefulset.yaml

{{/*
Copyright 2017 The Openstack-Helm Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/}}

{{- if .Values.manifests.statefulset }}
{{- $envAll := . }}
{{- if empty $envAll.Values.endpoints.oslo_messaging.hosts.discovery }}
{{- $service_discovery_name := .Release.Name | trunc 12 }}
{{- $_ := set $envAll.Values.endpoints.oslo_messaging.hosts "discovery" ( printf "%s-%s-%s" $service_discovery_name "dsv" ( $service_discovery_name | sha256sum | trunc 6 )) }}
{{- end }}

{{- $rcControllerName := printf "%s-%s" $envAll.Release.Name "rabbitmq"  }}
{{ tuple $envAll "rabbitmq" $rcControllerName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: RoleBinding
metadata:
  name: {{ $rcControllerName | quote }}
  namespace: {{ .Release.Namespace }}
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: {{ $rcControllerName | quote }}
subjects:
  - kind: ServiceAccount
    name: {{ $rcControllerName | quote }}
    namespace: {{ .Release.Namespace }}
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: Role
metadata:
  name: {{ $rcControllerName | quote }}
  namespace: {{ .Release.Namespace }}
rules:
  - apiGroups:
      - ""
      - extensions
      - batch
      - apps
    verbs:
      - get
      - list
    resources:
      - services
      - endpoints
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: {{ $rcControllerName | quote }}
  labels:
{{ tuple $envAll "rabbitmq" "server" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
spec:
  serviceName: {{ tuple "oslo_messaging" "discovery" . | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" }}
  replicas: {{ $envAll.Values.pod.replicas.server }}
  selector:
    matchLabels:
{{ tuple $envAll "rabbitmq" "server" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 6 }}
  template:
    metadata:
      labels:
{{ tuple $envAll "rabbitmq" "server" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
      annotations:
        configmap-bin-hash: {{ tuple "configmap-bin.yaml" . | include "helm-toolkit.utils.hash" }}
        configmap-etc-hash: {{ tuple "configmap-etc.yaml" . | include "helm-toolkit.utils.hash" }}
    spec:
      serviceAccountName: {{ $rcControllerName | quote }}
      affinity:
{{ tuple $envAll "rabbitmq" "server" | include "helm-toolkit.snippets.kubernetes_pod_anti_affinity" | indent 8 }}
      nodeSelector:
        {{ $envAll.Values.labels.server.node_selector_key }}: {{ $envAll.Values.labels.server.node_selector_value }}
      initContainers:
{{ tuple $envAll "rabbitmq" list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
{{- if $envAll.Values.volume.chown_on_start }}
        - name: rabbitmq-perms
{{ tuple $envAll "rabbitmq" | include "helm-toolkit.snippets.image" | indent 10 }}
          securityContext:
            runAsUser: 0
{{ tuple $envAll $envAll.Values.pod.resources.server | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
          command:
            - chown
            - -R
            - "rabbitmq:"
            - /var/lib/rabbitmq
          volumeMounts:
            - name: rabbitmq-data
              mountPath: /var/lib/rabbitmq
{{- end }}
      containers:
        - name: rabbitmq
{{ tuple $envAll "rabbitmq" | include "helm-toolkit.snippets.image" | indent 10 }}
{{ tuple $envAll $envAll.Values.pod.resources.server | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
          command:
            - /tmp/rabbitmq-start.sh
          ports:
            - name: http
              protocol: TCP
              containerPort: {{ tuple "oslo_messaging" "internal" "http" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
            - name: amqp
              protocol: TCP
              containerPort: {{ tuple "oslo_messaging" "internal" "amqp" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
            - name: clustering
              protocol: TCP
              containerPort: {{ add (tuple "oslo_messaging" "internal" "amqp" . | include "helm-toolkit.endpoints.endpoint_port_lookup") 20000 }}
          env:
            - name: MY_POD_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: RABBITMQ_USE_LONGNAME
              value: "true"
            - name: RABBITMQ_NODENAME
              value: "rabbit@$(MY_POD_NAME).{{ tuple "oslo_messaging" "discovery" . | include "helm-toolkit.endpoints.hostname_fqdn_endpoint_lookup" }}"
            - name: K8S_SERVICE_NAME
              value: {{ tuple "oslo_messaging" "discovery" . | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" }}
            # NOTE(portdirect): We use the discovery fqdn here, as we resolve
            # nodes via their pods hostname/nodename
            - name: K8S_HOSTNAME_SUFFIX
              value: ".{{ tuple "oslo_messaging" "discovery" . | include "helm-toolkit.endpoints.hostname_fqdn_endpoint_lookup" }}"
            - name: RABBITMQ_ERLANG_COOKIE
              value: "{{ $envAll.Values.endpoints.oslo_messaging.auth.erlang_cookie }}"
          readinessProbe:
            initialDelaySeconds: 10
            timeoutSeconds: 10
            exec:
              command:
              - /tmp/rabbitmq-readiness.sh
          livenessProbe:
            initialDelaySeconds: 30
            timeoutSeconds: 10
            exec:
              command:
              - /tmp/rabbitmq-liveness.sh
          volumeMounts:
            - name: rabbitmq-data
              mountPath: /var/lib/rabbitmq
            - name: rabbitmq-bin
              mountPath: /tmp
            - name: rabbitmq-etc
              mountPath: /etc/rabbitmq/enabled_plugins
              subPath: enabled_plugins
              readOnly: true
            - name: rabbitmq-etc
              mountPath: /etc/rabbitmq/rabbitmq.conf
              subPath: rabbitmq.conf
              readOnly: true
      volumes:
        - name: rabbitmq-bin
          configMap:
            name: {{ printf "%s-%s" $envAll.Release.Name "rabbitmq-bin" | quote }}
            defaultMode: 0555
        - name: rabbitmq-etc
          configMap:
            name: {{ printf "%s-%s" $envAll.Release.Name "rabbitmq-etc" | quote }}
            defaultMode: 0444
        {{- if not $envAll.Values.volume.enabled }}
        - name: rabbitmq-data
          emptyDir: {}
        {{- end }}
{{- if $envAll.Values.volume.enabled }}
  volumeClaimTemplates:
    - metadata:
        name: rabbitmq-data
      spec:
        accessModes: [ "ReadWriteOnce" ]
        resources:
          requests:
            storage: {{ $envAll.Values.volume.size }}
        storageClassName: {{ $envAll.Values.volume.class_name }}
{{- end }}
{{ end }}