Difference between revisions of "Kubernetes probes"
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| + | * https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/ | ||
| − | + | * <code>[[readinessProbe]]</code> | |
| − | + | * <code>[[livenessProbe]]</code> | |
| − | + | * <code>[[StartupProbe]]</code> | |
| − | + | Check mechanisms: | |
| − | + | * <code>[[exec]]</code> | |
| + | * <code>[[grpc]]</code> | ||
| + | * <code>[[httpGet]]: [[httpHeaders]]</code> | ||
| + | * <code>[[tcpSocket]]</code> | ||
[[kind: Deployment]] | [[kind: Deployment]] | ||
| + | |||
| + | <pre> | ||
| + | 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 | ||
| + | </pre> | ||
| Line 13: | Line 41: | ||
== Related == | == Related == | ||
| − | + | * <code>[[Redis values.yml]]</code> | |
| − | + | * <code>[[customStartupProbe]]</code> | |
| − | + | * <code>[[customLivenessProbe]]</code> | |
| + | * <code>[[customReadinessProbe]]</code> | ||
| + | * [[Kubernetes restartPolicy]] | ||
| + | * [[CrashLoopBackOff]] | ||
| + | * [[Unknown]] | ||
== See also == | == See also == | ||
Latest revision as of 10:00, 1 May 2024
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 - Kubernetes deployments, strategies:
kind: Deployment, Strategies:RecreateorRollingUpdate,kubectl[create | describe | get | scale | rollout | deployment/], Kubernetes Canary Deployments,deployment.kubernetes.io
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