Can I use GitLab CI or AWS CodeBuild instead of GitHub Actions?

Absolutely. The concepts are identical across all providers. You trigger on a push, spin up a Linux VM, checkout the code, login, build, and push. The only difference is the specific YAML syntax of the provider.

How do I update the Production server after the image is pushed?

This is the 'CD' (Continuous Deployment) part. The simplest way is to have the pipeline SSH into the production server and run `docker-compose pull && docker-compose up -d`. For advanced setups, you use tools like ArgoCD or Watchtower to automatically pull the new image when they detect it in the registry.

What is `--password-stdin`?

When running `docker login` in a script, typing the password directly via `-p` will leave the password visible in the server's command history. `echo $PASS | docker login --password-stdin` securely pipes the password directly into the command via standard input, leaving no trace.

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CI/CD Integration

Learn how to integrate Docker into modern CI/CD pipelines using GitHub Actions. Master automated builds, secure authentication via Repository Secrets, and Git Hash tagging for perfect artifact traceability.

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