To upload an image to a private Docker registry within a Kubernetes cluster, you need to follow these steps:
Create a Docker secret in the cluster: To access a private Docker registry, you need to provide the credentials for your registry. This can be done by creating a Docker secret in the cluster. You have already created a Docker secret in your cluster, which is great!
Define a Tekton Task: You can use Tekton to define a task that builds an image using the Kaniko builder. This task should use the Docker secret you created to access your private Docker registry.
Define a Tekton Pipeline: Create a Tekton pipeline that references the task you just defined. This pipeline should run the task as a step.
Run the Tekton Pipeline: Finally, run the pipeline using the Tekton CLI or the Tekton Dashboard.
If you are getting a permission error when uploading an image to your private Docker registry, there could be several reasons:
Incorrect Docker secret: Make sure the Docker secret you created contains the correct credentials for your private Docker registry.
Incorrect Registry URL: Make sure you are using the correct URL for your private Docker registry.
Insufficient Permissions: Make sure the service account used by Kaniko has the necessary permissions to access your private Docker registry.
Network Issues: If the cluster cannot reach the private Docker registry, there may be network issues that need to be resolved.
I hope this helps! Let me know if you need any further assistance.