dockerfile and kubernetes jobs ( assistance needed)-CodePudding

I have my dockerfile in which i have used postgres:12 image and i modified it using some ddl scripts and then i build this image and i can run the container through docker run command but how i can use Kubernetes jobs to run build image , as I dont have good exp on k8s.

This is my dockerfile here you can see it.

docker build . -t dockerdb

FROM postgres:12 

ENV POSTGRES_PASSWORD xyz@123123!233 

ENV POSTGRES_DB test 

ENV POSTGRES_USER test 

COPY ./Scripts /docker-entrypoint-initdb.d/

How i can customize the below code using the below requirement

apiVersion: batch/v1
      kind: Job
      metadata:
        name: job-1
      spec:
        template:
          metadata:
            name: job-1
          spec:
            containers:
            - name: postgres
              image: gcr.io/project/pg_12:dev
              command:
              - /bin/sh
              - -c
              - "not sure what command should i give in last line"

CodePudding user response：

Not sure how you are running the docker image

if you are running your docker image without passing any command you can directly run the image in Job.

docker run <imagename>

once your Dockerimage is ready and build you can run it directly

You job will get executed without passing any command

apiVersion: batch/v1
      kind: Job
      metadata:
        name: job-1
      spec:
        template:
          metadata:
            name: job-1
          spec:
            containers:
            - name: postgres
              image: gcr.io/project/pg_12:dev

if you want to pass any argument or command that you can pass further

apiVersion: batch/v1
kind: CronJob
metadata:
  name: hello
spec:
  schedule: "*/1 * * * *"
  jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: hello
            image: <CHANGE IMAGE URL>
            imagePullPolicy: IfNotPresent
            command:
            - /bin/sh
            - -c
            - date; echo Hello from the Kubernetes cluster
          restartPolicy: OnFailure

Just to update above template is for Cronjob, Cronjob run on specific time.