openstack-helm-infra/prometheus-node-exporter/templates/daemonset.yaml
Pete Birley 2abf62ff4d OSH-Infra: Add emptydirs for tmp
This PS adds emptydirs backing the /tmp directory in pods, which
is required in most cases for full operation when using a read only
filesystem backing the container.

Additionally some yaml indent issues are resolved.

Change-Id: I8b7f1614da059783254aa6efc09facf23fca3cad
Signed-off-by: Pete Birley <pete@port.direct>
2019-04-20 20:50:59 +00:00

123 lines
4.7 KiB
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 }}
{{- $envAll := . }}
{{- $serviceAccountName := printf "%s-%s" .Release.Name "node-exporter" }}
{{ tuple $envAll "node_exporter" $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
name: run-node-exporter
subjects:
- kind: ServiceAccount
name: {{ $serviceAccountName }}
namespace: {{ .Release.Namespace }}
roleRef:
kind: ClusterRole
name: cluster-admin
apiGroup: rbac.authorization.k8s.io
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: node-exporter
annotations:
{{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" }}
labels:
{{ tuple $envAll "node_exporter" "metrics" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
spec:
selector:
matchLabels:
{{ tuple $envAll "node_exporter" "metrics" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 6 }}
{{ tuple $envAll "node_exporter" | include "helm-toolkit.snippets.kubernetes_upgrades_daemonset" | indent 2 }}
template:
metadata:
labels:
{{ tuple $envAll "node_exporter" "metrics" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
annotations:
{{ dict "envAll" $envAll "podName" "node-exporter" "containerNames" (list "node-exporter") | include "helm-toolkit.snippets.kubernetes_mandatory_access_control_annotation" | indent 8 }}
{{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" | indent 8 }}
configmap-bin-hash: {{ tuple "configmap-bin.yaml" . | include "helm-toolkit.utils.hash" }}
spec:
securityContext:
readOnlyRootFilesystem: true
serviceAccountName: {{ $serviceAccountName }}
{{ if .Values.pod.tolerations.node_exporter.enabled }}
{{ tuple $envAll "node_exporter" | include "helm-toolkit.snippets.kubernetes_tolerations" | indent 6 }}
{{ else }}
nodeSelector:
{{ .Values.labels.node_exporter.node_selector_key }}: {{ .Values.labels.node_exporter.node_selector_value | quote }}
{{ end }}
hostNetwork: true
hostPID: true
initContainers:
{{ tuple $envAll "node_exporter" list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
containers:
- name: node-exporter
{{ tuple $envAll "node_exporter" | include "helm-toolkit.snippets.image" | indent 10 }}
{{ tuple $envAll $envAll.Values.pod.resources.node_exporter | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
command:
- /tmp/node-exporter.sh
ports:
- name: metrics
containerPort: {{ tuple "node_metrics" "internal" "metrics" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
hostPort: {{ tuple "node_metrics" "internal" "metrics" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
readinessProbe:
httpGet:
port: {{ tuple "node_metrics" "internal" "metrics" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
initialDelaySeconds: 20
periodSeconds: 10
volumeMounts:
- name: pod-tmp
mountPath: /tmp
- name: proc
mountPath: /host/proc
readOnly: true
- name: sys
mountPath: /host/sys
readOnly: true
{{ if .Values.conf.collectors.textfile.directory }}
- name: stats-out
mountPath: {{.Values.conf.collectors.textfile.directory }}
readOnly: true
{{ end }}
- name: node-exporter-bin
mountPath: /tmp/node-exporter.sh
subPath: node-exporter.sh
readOnly: true
volumes:
- name: pod-tmp
emptyDir: {}
- name: proc
hostPath:
path: /proc
- name: sys
hostPath:
path: /sys
{{ if .Values.conf.collectors.textfile.directory }}
- name: stats-out
hostPath:
path: {{.Values.conf.collectors.textfile.directory }}
{{ end }}
- name: node-exporter-bin
configMap:
name: node-exporter-bin
defaultMode: 0555
{{- end }}