openstack-helm-infra/fluentbit/templates/daemonset-fluent-bit.yaml

{{/*
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/v1
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:
  - apiGroups:
      - ""
    resources:
      - namespaces
      - nodes
      - pods
      - services
      - replicationcontrollers
      - limitranges
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - apps
    resources:
      - statefulsets
      - daemonsets
      - deployments
      - replicasets
    verbs:
      - get
      - list
      - watch
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: fluentbit
  annotations:
    {{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" }}
  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:
{{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" | indent 8 }}
        configmap-bin-hash: {{ tuple "configmap-bin.yaml" . | include "helm-toolkit.utils.hash" }}
        configmap-etc-hash: {{ tuple "configmap-etc.yaml" . | include "helm-toolkit.utils.hash" }}
{{ dict "envAll" $envAll "podName" "fluentbit" "containerNames" (list "fluentbit") | include "helm-toolkit.snippets.kubernetes_mandatory_access_control_annotation" | indent 8 }}
    spec:
{{ dict "envAll" $envAll "application" "fluentbit" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 6 }}
      serviceAccountName: {{ $serviceAccountName }}
{{ if $envAll.Values.pod.tolerations.fluentbit.enabled }}
{{ tuple $envAll "fluentbit" | include "helm-toolkit.snippets.kubernetes_tolerations" | indent 6 }}
{{ else }}
      nodeSelector:
        {{ .Values.labels.fluentbit.node_selector_key }}: {{ .Values.labels.fluentbit.node_selector_value | quote }}
{{ end }}
      hostNetwork: true
      hostPID: true
      dnsPolicy: {{ .Values.pod.dns_policy }}
      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 }}
{{ dict "envAll" $envAll "application" "fluentbit" "container" "fluentbit" | include "helm-toolkit.snippets.kubernetes_container_security_context" | 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: pod-tmp
              mountPath: /tmp
            - name: fluentbit-bin
              mountPath: /tmp/fluent-bit.sh
              subPath: fluent-bit.sh
              readOnly: true
            - name: varlog
              mountPath: /var/log
              readOnly: true
            - name: varlibdockercontainers
              mountPath: /var/lib/docker/containers
              readOnly: true
            - name: fluentbit-etc
              mountPath: /fluent-bit/etc/fluent-bit.conf
              subPath: fluent-bit.conf
              readOnly: true
            - name: fluentbit-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: pod-tmp
          emptyDir: {}
        - name: varlog
          hostPath:
            path: /var/log
        - name: varlibdockercontainers
          hostPath:
            path: /var/lib/docker/containers
        - name: fluentbit-bin
          configMap:
            name: fluentbit-bin
            defaultMode: 0555
        - name: fluentbit-etc
          secret:
            secretName: fluentbit-etc
            defaultMode: 0444
{{ if $mounts_fluentbit.volumes }}{{ toYaml $mounts_fluentbit.volumes | indent 8 }}{{ end }}
{{- end }}