Difference between revisions of "Kubernetes init containers (initContainers)"
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* https://kubernetes.io/docs/concepts/workloads/pods/init-containers/#init-containers-in-use | * https://kubernetes.io/docs/concepts/workloads/pods/init-containers/#init-containers-in-use | ||
apiVersion: v1 | apiVersion: v1 | ||
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image: busybox:1.28 | image: busybox:1.28 | ||
command: ['sh', '-c', "until nslookup mydb.$(cat /var/run/secrets/kubernetes.io/serviceaccount/namespace).svc.cluster.local; do echo waiting for mydb; sleep 2; done"] | command: ['sh', '-c', "until nslookup mydb.$(cat /var/run/secrets/kubernetes.io/serviceaccount/namespace).svc.cluster.local; do echo waiting for mydb; sleep 2; done"] | ||
+ | |||
+ | == Examples == | ||
+ | |||
+ | initContainers: | ||
+ | - name: myname | ||
+ | image: public.ecr.aws/aws-cli/aws-cli | ||
+ | command: ["aws", "s3", "sync", "s3://mybucket", "/yourdir"] | ||
+ | volumeMounts: | ||
+ | - name: yourdir | ||
+ | mountPath: "/yourdir" | ||
== Related == | == Related == | ||
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* [[Elasticsearch]]: <code>[[sysctl]] -w [[vm.max_map_count]]=262144</code> | * [[Elasticsearch]]: <code>[[sysctl]] -w [[vm.max_map_count]]=262144</code> | ||
* <code>[[Redis_values.yml]]</code> | * <code>[[Redis_values.yml]]</code> | ||
+ | * <code>[[aws-node]]</code> | ||
== See also == | == See also == | ||
* {{Kubectl init containers}} | * {{Kubectl init containers}} | ||
* {{Pods}} | * {{Pods}} | ||
+ | * {{Containers}} | ||
[[Category:K8s]] | [[Category:K8s]] |
Revision as of 16:15, 15 October 2024
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"]
Examples
initContainers: - name: myname image: public.ecr.aws/aws-cli/aws-cli command: ["aws", "s3", "sync", "s3://mybucket", "/yourdir"] volumeMounts: - name: yourdir mountPath: "/yourdir"
Related
kubectl get pod your-pod-name --template '{{.status.initContainerStatuses}}'
init:, Init:0/1
args:
- Elasticsearch:
sysctl -w vm.max_map_count=262144
Redis_values.yml
aws-node
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
Advertising: