Kubernetes init containers (initContainers)
apiVersion: v1 kind: Pod metadata: name: myapp-pod labels: app: myapp spec: containers: - name: myapp-container image: busybox:1.28 command: ['sh', '-c', 'echo The app is running! && sleep 3600'] initContainers: - name: init-myservice image: busybox:1.28 command: ['sh', '-c', "until nslookup myservice.$(cat /var/run/secrets/kubernetes.io/serviceaccount/namespace).svc.cluster.local; do echo waiting for myservice; sleep 2; done"] - name: init-mydb image: busybox:1.28 command: ['sh', '-c', "until nslookup mydb.$(cat /var/run/secrets/kubernetes.io/serviceaccount/namespace).svc.cluster.local; do echo waiting for mydb; sleep 2; done"]
Related
kubectl get pod your-pod-name --template '{{.status.initContainerStatuses}}'
init:
args:
- Elasticsearch:
sysctl -w vm.max_map_count=262144
See also
- Kubernetes init containers:
kubectl get pods, Init: (Init:ErrImagePull, Init:CrashLoopBackOff, Init:ImagePullBackOff), initContainers:
- Pods:
kubectl apply
,kubectl [ pod get | top | delete | describe pods ]
,InitContainers, PodInitializing, CrashLoopBackOff, ImagePullPolicy:, NodeAffinity, NodeSelector, Terminated
- Containers, OCI: Docker (
dockerd
),containerd
,runc
, Podman, buildah, skopeo, lxd, Container Registry, Service mesh, Windows Server containers, Containerpilot, CoreOS, CAdvisor, Containers networking, Container scanning, cosign, CRI, CRI-O,initContainers
, Sidecar container, Container images, latest
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