Kubernetes CronJob scenarios with ImagePullBackOff scenarios Despite Image Being Available
I'm refactoring my project and I'm sure I'm missing something obvious here, but This might be a silly question, but Hey everyone, I'm running into an issue that's driving me crazy... I'm working on a personal project and I'm working with an scenario with a Kubernetes CronJob that is consistently failing, resulting in an `ImagePullBackOff` behavior. The CronJob is supposed to run a simple Node.js application, but it seems like Kubernetes want to pull the image from the container registry, even though I can manually pull the image without any issues. Here’s the YAML configuration for the CronJob: ```yaml apiVersion: batch/v1 kind: CronJob metadata: name: my-cronjob spec: schedule: "*/5 * * * *" jobTemplate: spec: template: spec: containers: - name: my-app image: myregistry/myapp:latest imagePullPolicy: Always restartPolicy: OnFailure ``` I've verified that the image is available in the registry by running `docker pull myregistry/myapp:latest` on my local machine, which works without any issues. I've also checked that my Kubernetes nodes have network access to the registry. The output of `kubectl describe cronjob my-cronjob` shows the following behavior: ``` Failed to create job: unable to spawn job: failed to pull image "myregistry/myapp:latest": behavior response from daemon: pull access denied for myregistry/myapp, repository does not exist or may require 'docker login' ``` I suspect this might be an authentication scenario since my container registry is private. I’ve tried creating a secret for pulling images using the following command: ```bash kubectl create secret docker-registry regcred \ --docker-server=myregistry \ --docker-username=myusername \ --docker-password=mypassword \ --docker-email=myemail@example.com ``` After creating the secret, I modified my CronJob spec to include the imagePullSecrets: ```yaml spec: template: spec: imagePullSecrets: - name: regcred ``` But the scenario continues. I've double-checked that the secret is in the same namespace as the CronJob, and I’m using Kubernetes version 1.24. Any ideas on what might be going wrong or how I can further troubleshoot this scenario? I'd really appreciate any guidance on this. I've been using Yaml for about a year now. For reference, this is a production service. Is there a better approach? My team is using Yaml for this microservice. What's the best practice here? Any pointers in the right direction?