CODEWITHSUNDEEP
kubernetesgoogle-kubernetes-enginekubernetes-pod
Imrahamed
Imrahamed

Reputation: 202

Using Kubernetes javascript client inside a deployment to create a job

Hi i created a node app that creates a k8s job with kubernetes-client library. Then that job app responds back with a HTTP call to my node app. to reduce network latency and timing, i have to put everything inside a cluster. Is this possible to create a job inside a deployment?

References: https://github.com/kubernetes-client

   apiVersion: batch/v1
   kind: Job
   metadata:
     name: job
   spec:
     ttlSecondsAfterFinished: 10
     template:
       spec:
         containers:
         - name: samplejob
           image: gcr.io/hjgfjfhgffghfght
           command: ["node",  "index.js", '{api_url":"apienpoint"}']
           resources:
             limits:
               memory: "128Mi"
               cpu: "100m"
             requests:
               memory: "128Mi"
               cpu: "100m"
         restartPolicy: Never
     backoffLimit: 1

Upvotes: 1

Views: 1715

Answers (2)

Patrick W
Patrick W

Reputation: 4899

This is definitely possible. It all depends on how you create your node.js container image. Your application can run as a deployment within the cluster. Something will cause the application to trigger an event. That event will send an API call to the k8s master to request that a job be created.

You can use one of the client libraries to interface with the k8s master. The node.js library is maintained by the community.

Upvotes: 3

Tushar Mahajan
Tushar Mahajan

Reputation: 2160

You can build docker image for your code, like you can use 

node server.js

to trigger your main application and place the same image in the Kubernetes job, keep that in some other directory and execute that using the 

command

option in the yaml template of job/cronjob.

This will sort it for you

Upvotes: 0

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