158 lines
4.0 KiB
YAML
158 lines
4.0 KiB
YAML
apiVersion: v1
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kind: ConfigMap
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metadata:
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name: probes
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data:
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readinessprobe.sh: |-
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#!/bin/bash
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# This script is used to check the readiness of a POD.
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# If a pod works fine the script exits with exit code 0
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# otherwise, a non exit code is used.
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#
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# Add the following (or similar) code to the helm chart
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# files in order to use it.
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#
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# readinessProbe:
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# periodSeconds: 3
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# successThreshold: 1
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# failureThreshold: 2
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# initialDelaySeconds: 30
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# timeoutSeconds: 5
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# exec:
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# command:
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# - /bin/bash
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# - /probes/readinessprobe.sh
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#
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# Consider various tests such as availability of certain filesystems, environment variables
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# or connectivity/responses from/to (web)servers.
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function probe_log() {
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echo "$( date +%D-%T ): ${1}" > /proc/1/fd/1
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exit 1
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}
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#
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# Debug checks:
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#
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# Report a NOT READY status if the file /tmp/notready does exist:
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cat /tmp/notready > /dev/null 2>&1 && probe_log "File /tmp/notready exists"
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# Report A NOT READY status if the file /etc/passwd does NOT exist:
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cat /etc/passwd > /dev/null 2>&1 || probe_log "File /etc/passwd does not exist"
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# Check if the following filesystem exist.
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df /dev > /dev/null 2>&1 || probe_log "Filesystem /dev not found"
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# If we reached this point we can assume that everything is fine.
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# Exit with an okay status
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exit 0
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livenessprobe.sh: |-
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#!/bin/bash
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# This script is used to check the readiness of a POD.
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# If a pod works fine the script exits with exit code 0
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# otherwise, a non exit code is used.
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#
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# Add the following (or similar) code to the helm chart
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# files in order to use it.
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#
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# livenessProbe:
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# periodSeconds: 1
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# successThreshold: 1
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# failureThreshold: 2
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# initialDelaySeconds: 30
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# timeoutSeconds: 5
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# exec:
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# command:
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# - /bin/bash
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# - /probes/livenessprobe.sh
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#
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# Consider various tests such as availability of certain filesystems, environment variables
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# or connectivity/responses from/to (web)servers.
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function probe_log() {
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echo "$( date +%D-%T ): ${1}" > /proc/1/fd/1
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exit 1
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}
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#
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# Debug checks:
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#
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# Report a NOT ALIVE status if the file /tmp/notready does exist:
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cat /tmp/notalive > /dev/null 2>&1 && probe_log "File /tmp/notalive exists"
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# Check if the following filesystem exist.
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df /dev > /dev/null 2>&1 || probe_log "Filesystem /dev not found"
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# If we reached this point we can assume that everything is fine.
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# Exit with an okay status
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exit 0
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---
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apiVersion: v1
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kind: Service
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metadata:
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labels:
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app: probes
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name: probes
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spec:
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ports:
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- name: web
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port: 8080
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protocol: TCP
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targetPort: 9876
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selector:
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app: probes
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type: ClusterIP
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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labels:
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app: probes
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name: probes
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: probes
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template:
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metadata:
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labels:
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app: probes
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spec:
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containers:
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- image: mhausenblas/simpleservice:0.5.0
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# https://github.com/mhausenblas/simpleservice
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name: simpleservice
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resources:
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limits:
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memory: "500Mi"
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cpu: 200m
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livenessProbe:
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periodSeconds: 1
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successThreshold: 1
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failureThreshold: 2
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initialDelaySeconds: 5
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timeoutSeconds: 5
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exec:
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command:
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- /bin/bash
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- /probes/livenessprobe.sh
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readinessProbe:
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periodSeconds: 3
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successThreshold: 1
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failureThreshold: 2
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initialDelaySeconds: 5
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timeoutSeconds: 5
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exec:
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command:
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- /bin/bash
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- /probes/readinessprobe.sh
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volumeMounts:
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- name: probes
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mountPath: "/probes"
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readOnly: true
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volumes:
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- name: probes
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configMap:
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name: probes
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