openstack-helm-infra/fluent-logging/templates/daemonset-fluent-bit.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.daemonset_fluentbit }}
{{- $envAll := . }}

{{- $mounts_fluentbit := .Values.pod.mounts.fluentbit.fluentbit }}

{{- $serviceAccountName := printf "%s-%s" .Release.Name "fluentbit" }}
{{ tuple $envAll "fluentbit" $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:
      - get
      - list
      - watch
  - apiGroups:
      - extensions
    resources:
      - daemonsets
      - deployments
      - replicasets
    verbs:
      - list
      - watch
  - apiGroups:
      - apps
    resources:
      - statefulsets
    verbs:
      - get
      - list
      - watch
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: fluentbit
  labels:
{{ tuple $envAll "fluentbit" "daemon" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
spec:
  selector:
    matchLabels:
{{ tuple $envAll "fluentbit" "daemon" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 6 }}
{{ tuple $envAll "fluentbit" | include "helm-toolkit.snippets.kubernetes_upgrades_daemonset" | indent 2 }}
  template:
    metadata:
      labels:
{{ tuple $envAll "fluentbit" "daemon" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
      annotations:
        configmap-etc-hash: {{ tuple "configmap-etc.yaml" . | include "helm-toolkit.utils.hash" }}
    spec:
      serviceAccountName: {{ $serviceAccountName }}
{{ if .Values.labels.fluentbit.tolerations }}
      tolerations:
      - key: node-role.kubernetes.io/master
        operator: Exists
      - key: node-role.kubernetes.io/node
        operator: Exists
{{ else }}
      nodeSelector:
        {{ .Values.labels.fluentbit.node_selector_key }}: {{ .Values.labels.fluentbit.node_selector_value | quote }}
{{ end }}
      hostNetwork: true
      hostPID: true
      dnsPolicy: ClusterFirstWithHostNet
      initContainers:
{{ tuple $envAll "fluentbit" list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
      containers:
        - name: fluentbit
{{ tuple $envAll "fluentbit" | include "helm-toolkit.snippets.image" | indent 10 }}
{{ tuple $envAll $envAll.Values.pod.resources.fluentbit | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
          command:
            - /tmp/fluent-bit.sh
          env:
            - name: FLUENTD_HOST
              value: {{ tuple "fluentd" "internal" . | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" | quote}}
            - name: FLUENTD_PORT
              value: {{ tuple "fluentd" "internal" "service" . | include "helm-toolkit.endpoints.endpoint_port_lookup" | quote }}
          volumeMounts:
            - name: fluent-logging-bin
              mountPath: /tmp/fluent-bit.sh
              subPath: fluent-bit.sh
              readOnly: true
            - name: varlog
              mountPath: /var/log
            - name: varlibdockercontainers
              mountPath: /var/lib/docker/containers
              readOnly: true
            - name: fluent-logging-etc
              mountPath: /fluent-bit/etc/fluent-bit.conf
              subPath: fluent-bit.conf
              readOnly: true
            - name: fluent-logging-etc
              mountPath: /fluent-bit/etc/parsers.conf
              subPath: parsers.conf
              readOnly: true
{{ if $mounts_fluentbit.volumeMounts }}{{ toYaml $mounts_fluentbit.volumeMounts | indent 12 }}{{ end }}
      volumes:
        - name: varlog
          hostPath:
            path: /var/log
        - name: varlibdockercontainers
          hostPath:
            path: /var/lib/docker/containers
        - name: fluent-logging-bin
          configMap:
            name: fluent-logging-bin
            defaultMode: 0555
        - name: fluent-logging-etc
          secret:
            secretName: fluent-logging-etc
            defaultMode: 0444
{{ if $mounts_fluentbit.volumes }}{{ toYaml $mounts_fluentbit.volumes | indent 8 }}{{ end }}
{{- end }}