Ytukyg

I've created a Kubernetes job that has now failed. Where can I find the logs to this job?

I'm not sure how to find the associated pod (I assume once the job fails it deletes the pod)?

Running kubectl describe job does not seem to show any relevant information:

Name:           app-raiden-migration-12-19-58-21-11-2018

Namespace:      localdev

Selector:       controller-uid=c2fd06be-ed87-11e8-8782-080027eeb8a0

Labels:         jobType=database-migration

Annotations:    kubectl.kubernetes.io/last-applied-configuration={"apiVersion":"batch/v1","kind":"Job","metadata":{"annotations":{},"labels":{"jobType":"database-migration"},"name":"app-raiden-migration-12-19-58-21-1...

Parallelism:    1

Completions:    1

Start Time:     Wed, 21 Nov 2018 12:19:58 +0000

Pods Statuses:  0 Running / 0 Succeeded / 1 Failed

Pod Template:

  Labels:  controller-uid=c2fd06be-ed87-11e8-8782-080027eeb8a0

           job-name=app-raiden-migration-12-19-58-21-11-2018

  Containers:

   app:

    Image:  pp3-raiden-app:latest

    Port:   <none>

    Command:

      php

      artisan

      migrate

    Environment:

      DB_HOST:        local-mysql

      DB_PORT:        3306

      DB_DATABASE:    raiden

      DB_USERNAME:    <set to the key 'username' in secret 'cloudsql-db-credentials'>  Optional: false

      DB_PASSWORD:    <set to the key 'password' in secret 'cloudsql-db-credentials'>  Optional: false

      LOG_CHANNEL:    stderr

      APP_NAME:       Laravel

      APP_KEY:        ABCDEF123ERD456EABCDEF123ERD456E

      APP_URL:        http://192.168.99.100

      OAUTH_PRIVATE:  <set to the key 'oauth_private.key' in secret 'laravel-oauth'>  Optional: false

      OAUTH_PUBLIC:   <set to the key 'oauth_public.key' in secret 'laravel-oauth'>   Optional: false

    Mounts:           <none>

  Volumes:            <none>

Events:

  Type     Reason                Age   From            Message

  ----     ------                ----  ----            -------

  Normal   SuccessfulCreate      2m    job-controller  Created pod: app-raiden-migration-12-19-58-21-11-2018-pwnjn

  Warning  BackoffLimitExceeded  2m    job-controller  Job has reach the specified backoff limit

kubectl get pods -a

And then a pod will be shown like below:

app-raiden-migration-12-19-58-21-11-2018-pwnjn 0/1 Error 0 6m

You can get the pods of this job by running:

kubectl get pods --selector=job-name=app-raiden-migration-12-19-58-21-11-2018

but in this case i think you won't find any pods because no pod is created, and as mentioned in this link: Job Termination and Cleanup, pods are not deleted after jobs completion.
But still i don't know how you can find out why that pod failed to run (but if there is a pod and you could find it, you can find the logs of that pod). I had the same mistake and i ran the job again and job worked successfully.

EDIT:

I just see the events of your job, your job has made pod and you can see the logs of your pod by your pod name as I mentioned above.