Difference between revisions of "Kubernetes init containers (initContainers)"

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Line 1: Line 1:
 
 
== Example ==
 
 
* 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

See also

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