Difference between revisions of "Kubernetes probes"
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https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/ | https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/ | ||
| + | |||
| + | [[probes:]] | ||
* <code>[[readinessProbe]]</code> | * <code>[[readinessProbe]]</code> | ||
* <code>[[livenessProbe]]</code> | * <code>[[livenessProbe]]</code> | ||
* <code>[[startupProbe]]</code> | * <code>[[startupProbe]]</code> | ||
| + | |||
| + | Options: | ||
| + | * [[terminationGracePeriodSeconds]] | ||
Check mechanisms: | Check mechanisms: | ||
Latest revision as of 08:23, 7 November 2024
Options:
Check mechanisms:
kind: Deployment
apiVersion: v1
kind: Pod
metadata:
labels:
test: liveness
name: liveness-exec
spec:
containers:
- name: liveness
image: registry.k8s.io/busybox
args:
- /bin/sh
- -c
- touch /tmp/healthy; sleep 30; rm -f /tmp/healthy; sleep 600
livenessProbe:
exec:
command:
- cat
- /tmp/healthy
initialDelaySeconds: 5
periodSeconds: 5
readinessProbe: httpGet: path: /api/health port: 3000 livenessProbe: httpGet: path: /api/health port: 3000 initialDelaySeconds: 60 timeoutSeconds: 30 failureThreshold: 10
Related[edit]
Redis values.ymlcustomStartupProbecustomLivenessProbecustomReadinessProbe- Kubernetes restartPolicy
- CrashLoopBackOff
- Unknown
See also[edit]
- K8s probes:
readinessProbe, livenessProbe, StartupProbe, exec, gRPC, HttpGet, tcpSocket, TerminationGracePeriodSeconds - Kubernetes deployments, strategies:
kind: Deployment, Strategies:RecreateorRollingUpdate,kubectl[create | describe | get | scale | rollout | deployment/], Kubernetes Canary Deployments,deployment.kubernetes.io - K8s troubleshooting:
kubectl logs, kubectl top, kubectl get events -A, kubectl describe pod, Liveness, Readiness,Kubernetes events, Pulling image, OOMKilled, ProbeWarning, Reason,FailedScheduling,errImagePull, ImagePullBackOff, Kubelet conditions:MemoryPressure, DiskPressure, KubeletHasSufficientPID, KubeletReady, kubectl [ debug | attach | exec ] kubectl cluster-info dump, SimKube, KWOK
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