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[stable/stolon] add prometheus service monitor (#18212)
* add service monitor Signed-off-by: arjan.ligthart <arjan.ligthart@gmail.com> * update chart version Signed-off-by: arjan.ligthart <arjan.ligthart@gmail.com> * improved explanation (including fix for max_connections) Signed-off-by: arjan.ligthart <arjan.ligthart@gmail.com> * avoid duplicate endpoints being scraped Signed-off-by: arjan.ligthart <arjan.ligthart@gmail.com> * remove hardcoded 8080 ports Signed-off-by: arjan.ligthart <arjan.ligthart@gmail.com>
This commit is contained in:
aligthart
committed by
Kubernetes Prow Robot
Kubernetes Prow Robot
parent
f709c524e7
commit
69db007e34
@@ -1,6 +1,6 @@
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apiVersion: v1
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name: stolon
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version: 1.4.1
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version: 1.5.0
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appVersion: 0.13.0
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description: Stolon - PostgreSQL cloud native High Availability.
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home: https://github.com/sorintlab/stolon
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@@ -55,6 +55,10 @@ Kubernetes is the default store backend. `consul`, `etcdv2` or `etcdv3` can also
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| `store.kubeResourceKind` | Kubernetes resource kind (only for kubernetes) | `configmap` |
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| `pgParameters` | [`postgresql.conf`][pgconf] options used during cluster creation | `{}` |
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| `ports` | Ports to expose on pods | `{"stolon":{"containerPort": 5432},"metrics":{"containerPort": 8080}}`|
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| `serviceMonitor.enabled` | Creates a Prometheus serviceMonitor and service object | `false`|
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| `serviceMonitor.namespace` | Set to use a different value than the release namespace for deploying the ServiceMonitor object | `nil` |
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| `serviceMonitor.interval` | Set to use a different value than the default Prometheus scrape interval | `nil` |
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| `serviceMonitor.scrapeTimeout` | Set to use a different value than the default Prometheus scrape timeout | `nil` |
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| `job.autoCreateCluster` | Set to `false` to force-disable auto-cluster-creation which may clear pre-existing postgres db data | `true` |
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| `job.autoUpdateClusterSpec` | Set to `false` to force-disable auto-cluster-spec-update | `true` |
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| `clusterSpec` | Stolon cluster spec [reference](https://github.com/sorintlab/stolon/blob/master/doc/cluster_spec.md) | `{}` |
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@@ -97,7 +97,7 @@ spec:
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value: "/etc/secrets/stolon/pg_su_password"
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{{ end }}
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- name: STKEEPER_METRICS_LISTEN_ADDRESS
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value: "0.0.0.0:8080"
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value: "0.0.0.0:{{ .Values.ports.metrics.containerPort }}"
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- name: STKEEPER_DEBUG
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value: {{ .Values.debug | quote}}
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{{- if .Values.keeper.extraEnv }}
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@@ -0,0 +1,19 @@
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{{- if .Values.serviceMonitor.enabled }}
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apiVersion: v1
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kind: Service
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metadata:
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name: {{ template "stolon.fullname" . }}-metrics
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labels:
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app: {{ template "stolon.name" . }}
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chart: {{ template "stolon.chart" . }}
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release: {{ .Release.Name }}
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heritage: {{ .Release.Service }}
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component: "all"
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spec:
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ports:
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- name: metrics
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port: {{ .Values.ports.metrics.containerPort }}
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selector:
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app: {{ template "stolon.name" . }}
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release: {{ .Release.Name }}
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{{- end }}
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@@ -0,0 +1,31 @@
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{{- if .Values.serviceMonitor.enabled }}
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apiVersion: monitoring.coreos.com/v1
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kind: ServiceMonitor
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metadata:
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name: {{ template "stolon.fullname" . }}
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labels:
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app: {{ template "stolon.name" . }}
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chart: {{ template "stolon.chart" . }}
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release: {{ .Release.Name }}
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heritage: {{ .Release.Service }}
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{{- if .Values.serviceMonitor.namespace }}
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namespace: {{ .Values.serviceMonitor.namespace }}
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{{- end }}
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spec:
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endpoints:
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- targetPort: "metrics"
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{{- if .Values.serviceMonitor.interval }}
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interval: {{ .Values.serviceMonitor.interval }}
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{{- end }}
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{{- if .Values.serviceMonitor.scrapeTimeout }}
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scrapeTimeout: {{ .Values.serviceMonitor.scrapeTimeout }}
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{{- end }}
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namespaceSelector:
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matchNames:
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- {{ .Release.Namespace }}
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selector:
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matchLabels:
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app: {{ template "stolon.name" . }}
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release: {{ .Release.Name }}
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component: "all"
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{{- end }}
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@@ -58,7 +58,7 @@ spec:
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- name: STPROXY_LISTEN_ADDRESS
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value: {{ default "0.0.0.0" .Values.proxy.listenAddress | quote }}
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- name: STPROXY_METRICS_LISTEN_ADDRESS
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value: "0.0.0.0:8080"
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value: "0.0.0.0:{{ .Values.ports.metrics.containerPort }}"
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- name: STPROXY_DEBUG
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value: {{ .Values.debug | quote}}
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{{- if .Values.proxy.extraEnv }}
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@@ -57,7 +57,7 @@ spec:
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value: {{ .Values.store.endpoints | quote}}
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{{- end }}
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- name: STSENTINEL_METRICS_LISTEN_ADDRESS
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value: "0.0.0.0:8080"
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value: "0.0.0.0:{{ .Values.ports.metrics.containerPort }}"
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- name: STSENTINEL_DEBUG
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value: {{ .Values.debug | quote}}
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{{- if .Values.sentinel.extraEnv }}
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@@ -66,6 +66,16 @@ ports:
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metrics:
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containerPort: 8080
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serviceMonitor:
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# When set to true then use a ServiceMonitor to collect metrics
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enabled: false
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# Set the namespace the ServiceMonitor should be deployed to
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# namespace: default
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# Set how frequently Prometheus should scrape
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# interval: 30s
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# Set timeout for scrape
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# scrapeTimeout: 10s
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job:
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autoCreateCluster: true
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autoUpdateClusterSpec: true
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