Dustin C. Hatch
25d34efb4c
If something prevents the first AlertManager instance from starting, we don't want to wait forever for it before starting the second. That pretty much defeats the purpose of having two instances. Fortunately, we can configure Kubernetes to bring up both instances simultaneously by setting the pod management policyo to `Parallel`.
88 lines
2.0 KiB
YAML
88 lines
2.0 KiB
YAML
---
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apiVersion: v1
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kind: Service
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metadata:
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name: alertmanager
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labels:
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app.kubernetes.io/name: alertmanager
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app.kubernetes.io/component: alertmanager
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spec:
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ports:
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- port: 9093
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name: alertmanager
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selector:
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app.kubernetes.io/name: alertmanager
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app.kubernetes.io/component: alertmanager
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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: alertmanager
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labels:
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app.kubernetes.io/name: alertmanager
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app.kubernetes.io/component: alertmanager
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spec:
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serviceName: alertmanager
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selector:
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matchLabels:
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app.kubernetes.io/name: alertmanager
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app.kubernetes.io/component: alertmanager
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template:
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metadata:
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labels:
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app.kubernetes.io/name: alertmanager
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app.kubernetes.io/component: alertmanager
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spec:
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containers:
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- name: alertmanager
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image: quay.io/prometheus/alertmanager:v0.26.0
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ports:
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- containerPort: 9093
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name: http
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readinessProbe: &probe
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httpGet:
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port: http
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path: /-/ready
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periodSeconds: 60
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startupProbe:
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<<: *probe
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periodSeconds: 1
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successThreshold: 1
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failureThreshold: 30
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timeoutSeconds: 1
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securityContext:
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runAsNonRoot: true
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readOnlyRootFilesystem: true
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volumeMounts:
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- mountPath: /etc/alertmanager
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name: config
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readOnly: true
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- mountPath: /alertmanager
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name: alertmanager
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subPath: data
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securityContext:
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fsGroup: 2093
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runAsGroup: 2093
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runAsNonRoot: true
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runAsUser: 2093
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volumes:
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- name: config
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configMap:
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name: alertmanager
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podManagementPolicy: Parallel
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volumeClaimTemplates:
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- apiVersion: v1
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kind: PersistentVolumeClaim
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metadata:
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name: alertmanager
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labels:
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app.kubernetes.io/name: alertmanager
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app.kubernetes.io/component: alertmanager
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spec:
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accessModes:
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- ReadWriteOnce
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resources:
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requests:
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storage: 500M
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