f25e458515
This updates the prometheus chart to include the pod security context on the pod template. This changes the pod's user from root to the nobody user instead This also adds the container security context to explicitly set allowPrivilegeEscalation to false and readOnlyRootFilesystem to true Change-Id: I2a3a4b77d9b25c086dc23b4fd66dca92872c422d
218 lines
8.3 KiB
YAML
218 lines
8.3 KiB
YAML
{{/*
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Copyright 2017 The Openstack-Helm Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/}}
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{{- if .Values.manifests.statefulset_prometheus }}
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{{- $envAll := . }}
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{{- $mounts_prometheus := .Values.pod.mounts.prometheus.prometheus }}
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{{- $mounts_prometheus_init := .Values.pod.mounts.prometheus.init_container }}
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{{- $promUserSecret := .Values.secrets.prometheus.admin }}
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{{- $serviceAccountName := printf "%s-%s" .Release.Name "prometheus" }}
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{{ tuple $envAll "prometheus" $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
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---
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apiVersion: rbac.authorization.k8s.io/v1beta1
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kind: ClusterRole
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metadata:
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name: {{ $serviceAccountName }}
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rules:
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- apiGroups:
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- ""
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resources:
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- nodes
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- nodes/proxy
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- services
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- endpoints
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- pods
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verbs:
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- get
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- list
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- watch
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- apiGroups:
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- ""
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resources:
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- configmaps
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verbs:
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- get
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- nonResourceURLs:
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- "/metrics"
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verbs:
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- get
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---
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apiVersion: rbac.authorization.k8s.io/v1beta1
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kind: ClusterRoleBinding
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metadata:
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name: {{ $serviceAccountName }}
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subjects:
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- kind: ServiceAccount
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name: {{ $serviceAccountName }}
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namespace: {{ .Release.Namespace }}
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roleRef:
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kind: ClusterRole
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name: {{ $serviceAccountName }}
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apiGroup: rbac.authorization.k8s.io
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---
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apiVersion: apps/v1
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kind: StatefulSet
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metadata:
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name: prometheus
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annotations:
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{{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" }}
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labels:
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{{ tuple $envAll "prometheus" "api" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
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spec:
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serviceName: {{ tuple "monitoring" "internal" . | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" }}
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replicas: {{ .Values.pod.replicas.prometheus }}
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selector:
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matchLabels:
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{{ tuple $envAll "prometheus" "api" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 6 }}
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template:
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metadata:
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labels:
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{{ tuple $envAll "prometheus" "api" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
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annotations:
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{{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" | indent 8 }}
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configmap-bin-hash: {{ tuple "configmap-bin.yaml" . | include "helm-toolkit.utils.hash" }}
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configmap-etc-hash: {{ tuple "configmap-etc.yaml" . | include "helm-toolkit.utils.hash" }}
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spec:
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{{ dict "envAll" $envAll "application" "prometheus" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 6 }}
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serviceAccountName: {{ $serviceAccountName }}
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affinity:
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{{ tuple $envAll "prometheus" "api" | include "helm-toolkit.snippets.kubernetes_pod_anti_affinity" | indent 8 }}
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nodeSelector:
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{{ .Values.labels.prometheus.node_selector_key }}: {{ .Values.labels.prometheus.node_selector_value | quote }}
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terminationGracePeriodSeconds: {{ .Values.pod.lifecycle.termination_grace_period.prometheus.timeout | default "30" }}
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initContainers:
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{{ tuple $envAll "prometheus" list | include "helm-toolkit.snippets.kubernetes_entrypoint_init_container" | indent 8 }}
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- name: prometheus-perms
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{{ tuple $envAll "prometheus" | include "helm-toolkit.snippets.image" | indent 10 }}
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{{ tuple $envAll $envAll.Values.pod.resources.prometheus | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
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{{ dict "envAll" $envAll "application" "prometheus" "container" "prometheus_perms" | include "helm-toolkit.snippets.kubernetes_container_security_context" | indent 10 }}
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command:
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- chown
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- -R
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- "nobody:"
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- /var/lib/prometheus/data
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volumeMounts:
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- name: storage
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mountPath: /var/lib/prometheus/data
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containers:
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- name: apache-proxy
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{{ tuple $envAll "apache_proxy" | include "helm-toolkit.snippets.image" | indent 10 }}
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{{ tuple $envAll $envAll.Values.pod.resources.apache_proxy | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
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{{ dict "envAll" $envAll "application" "prometheus" "container" "apache_proxy" | include "helm-toolkit.snippets.kubernetes_container_security_context" | indent 10 }}
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command:
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- /tmp/apache.sh
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- start
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ports:
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- name: http
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containerPort: 80
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env:
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- name: PROMETHEUS_PORT
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value: {{ tuple "monitoring" "internal" "api" . | include "helm-toolkit.endpoints.endpoint_port_lookup" | quote }}
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- name: PROMETHEUS_ADMIN_USERNAME
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valueFrom:
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secretKeyRef:
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name: {{ $promUserSecret }}
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key: PROMETHEUS_ADMIN_USERNAME
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- name: PROMETHEUS_ADMIN_PASSWORD
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valueFrom:
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secretKeyRef:
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name: {{ $promUserSecret }}
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key: PROMETHEUS_ADMIN_PASSWORD
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volumeMounts:
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- name: prometheus-bin
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mountPath: /tmp/apache.sh
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subPath: apache.sh
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readOnly: true
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- name: prometheus-etc
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mountPath: /usr/local/apache2/conf/httpd.conf
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subPath: httpd.conf
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readOnly: true
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- name: prometheus
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{{ tuple $envAll "prometheus" | include "helm-toolkit.snippets.image" | indent 10 }}
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{{ tuple $envAll $envAll.Values.pod.resources.prometheus | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
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{{ dict "envAll" $envAll "application" "prometheus" "container" "prometheus" | include "helm-toolkit.snippets.kubernetes_container_security_context" | indent 10 }}
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command:
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- /tmp/prometheus.sh
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- start
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lifecycle:
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preStop:
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exec:
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command:
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- /tmp/prometheus.sh
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- stop
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ports:
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- name: prom-metrics
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containerPort: {{ tuple "monitoring" "internal" "api" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
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readinessProbe:
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httpGet:
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path: /status
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port: {{ tuple "monitoring" "internal" "api" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
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initialDelaySeconds: 30
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timeoutSeconds: 30
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volumeMounts:
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- name: etcprometheus
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mountPath: /etc/config
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- name: rulesprometheus
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mountPath: /etc/config/rules
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{{- range $key, $value := .Values.conf.prometheus.rules }}
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- name: prometheus-etc
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mountPath: /etc/config/rules/{{ $key }}.rules
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subPath: {{ $key }}.rules
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readOnly: true
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{{- end }}
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- name: prometheus-etc
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mountPath: /etc/config/prometheus.yml
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subPath: prometheus.yml
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readOnly: true
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- name: prometheus-bin
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mountPath: /tmp/prometheus.sh
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subPath: prometheus.sh
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readOnly: true
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- name: storage
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mountPath: /var/lib/prometheus/data
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{{ if $mounts_prometheus.volumeMounts }}{{ toYaml $mounts_prometheus.volumeMounts | indent 12 }}{{ end }}
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volumes:
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- name: etcprometheus
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emptyDir: {}
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- name: rulesprometheus
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emptyDir: {}
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- name: prometheus-etc
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secret:
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secretName: prometheus-etc
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defaultMode: 0444
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- name: prometheus-bin
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configMap:
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name: prometheus-bin
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defaultMode: 0555
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{{ if $mounts_prometheus.volumes }}{{ toYaml $mounts_prometheus.volumes | indent 8 }}{{ end }}
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{{- if not .Values.storage.enabled }}
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- name: storage
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emptyDir: {}
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{{- else }}
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volumeClaimTemplates:
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- metadata:
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name: storage
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spec:
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accessModes: {{ .Values.storage.pvc.access_mode }}
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resources:
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requests:
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storage: {{ .Values.storage.requests.storage }}
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storageClassName: {{ .Values.storage.storage_class }}
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{{- end }}
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{{- end }}
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