openstack-helm-infra/fluent-logging/templates/deployment-fluentd.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.deployment_fluentd }}
{{- $envAll := . }}
{{- $esUserSecret := .Values.secrets.elasticsearch.user }}

{{- $mounts_fluentd := .Values.pod.mounts.fluentd.fluentd }}

{{- $serviceAccountName := printf "%s-%s" .Release.Name "fluentd" }}
{{ tuple $envAll "fluentd" $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  name: {{ $serviceAccountName }}
subjects:
  - kind: ServiceAccount
    name: {{ $serviceAccountName }}
    namespace: {{ .Release.Namespace }}
roleRef:
  kind: ClusterRole
  name: {{ $serviceAccountName }}
  apiGroup: rbac.authorization.k8s.io
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: {{ $serviceAccountName }}
rules:
rules:
  - apiGroups:
      - ""
    resources:
      - namespaces
      - nodes
      - pods
      - services
      - replicationcontrollers
      - limitranges
    verbs:
      - list
      - watch
  - apiGroups:
      - extensions
    resources:
      - daemonsets
      - deployments
      - replicasets
    verbs:
      - list
      - watch
  - apiGroups:
      - apps
    resources:
      - statefulsets
    verbs:
      - get
      - list
      - watch
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: fluentd
  annotations:
    {{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" }}
  labels:
{{ tuple $envAll "fluentd" "internal" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
spec:
  replicas: {{ .Values.pod.replicas.fluentd }}
  selector:
    matchLabels:
{{ tuple $envAll "fluentd" "internal" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 6 }}
{{ tuple $envAll  | include "helm-toolkit.snippets.kubernetes_upgrades_deployment" | indent 2 }}
  template:
    metadata:
      labels:
{{ tuple $envAll "fluentd" "internal" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
      annotations:
{{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" | indent 8 }}
        configmap-etc-hash: {{ tuple "configmap-etc.yaml" . | include "helm-toolkit.utils.hash" }}
        configmap-bin-hash: {{ tuple "configmap-bin.yaml" . | include "helm-toolkit.utils.hash" }}
    spec:
      securityContext:
        readOnlyRootFilesystem: true
{{ dict "envAll" $envAll "application" "fluentd" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 6 }}
      serviceAccountName: {{ $serviceAccountName }}
      affinity:
{{ tuple $envAll "fluentd" "internal" | include "helm-toolkit.snippets.kubernetes_pod_anti_affinity" | indent 8 }}
      nodeSelector:
        {{ .Values.labels.fluentd.node_selector_key }}: {{ .Values.labels.fluentd.node_selector_value | quote }}
      terminationGracePeriodSeconds: {{ .Values.pod.lifecycle.termination_grace_period.fluentd.timeout | default "30" }}
      initContainers:
{{ tuple $envAll "fluentd" list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
      containers:
        - name: fluentd
{{ tuple $envAll "fluentd" | include "helm-toolkit.snippets.image" | indent 10 }}
{{ tuple $envAll $envAll.Values.pod.resources.fluentd | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
          securityContext:
            allowPrivilegeEscalation: false
          command:
            - /tmp/fluentd.sh
            - start
          ports:
            - name: forward
              containerPort: {{ tuple "fluentd" "internal" "service" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
            - name: metrics
              containerPort: {{ tuple "fluentd" "internal" "metrics" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
          readinessProbe:
            tcpSocket:
              port: {{ tuple "fluentd" "internal" "service" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
            initialDelaySeconds: 20
            periodSeconds: 10
          livenessProbe:
            tcpSocket:
              port: {{ tuple "fluentd" "internal" "service" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
            initialDelaySeconds: 60
            timeoutSeconds: 10
          env:
            - name: FLUENTD_PORT
              value: {{ tuple "fluentd" "internal" "service" . | include "helm-toolkit.endpoints.endpoint_port_lookup" | quote }}
            - name: ELASTICSEARCH_HOST
              value: {{ tuple "elasticsearch" "internal" . | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" | quote }}
            - name: ELASTICSEARCH_PORT
              value: {{ tuple "elasticsearch" "internal" "http" . | include "helm-toolkit.endpoints.endpoint_port_lookup" | quote }}
            - name: ELASTICSEARCH_USERNAME
              valueFrom:
                secretKeyRef:
                  name: {{ $esUserSecret }}
                  key: ELASTICSEARCH_USERNAME
            - name: ELASTICSEARCH_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: {{ $esUserSecret }}
                  key: ELASTICSEARCH_PASSWORD
          volumeMounts:
            - name: pod-etc-fluentd
              mountPath: /fluentd/etc
            - name: fluent-logging-etc
              mountPath: /fluentd/etc/fluent.conf
              subPath: fluent.conf
              readOnly: true
            - name: fluent-logging-bin
              mountPath: /tmp/fluentd.sh
              subPath: fluentd.sh
              readOnly: true
{{- if $mounts_fluentd.volumeMounts }}{{ toYaml $mounts_fluentd.volumeMounts | indent 12 }}{{- end }}
      volumes:
        - name: pod-etc-fluentd
          emptyDir: {}
        - name: fluent-logging-etc
          secret:
            secretName: fluent-logging-etc
            defaultMode: 0444
        - name: fluent-logging-bin
          configMap:
            name: fluent-logging-bin
            defaultMode: 0555
{{- if $mounts_fluentd.volumes }}{{ toYaml $mounts_fluentd.volumes | indent 8 }}{{- end }}
{{- end }}