Code Hosting vs CI/CD: GitHub Actions, GitLab CI, Jenkins, CircleCI, Argo Workflows and More — What Actually Fits Your Stack?

I used to think GitHub Actions, GitLab CI, Jenkins, CircleCI and TeamCity were basically the same thing with different YAML syntax. They're not.

The bigger distinction is:
Code hosting ≠ CI/CD ≠ workflow orchestration.
GitHub → GitHub Actions
GitLab → GitLab CI/CD
Bitbucket → Bitbucket Pipelines
Azure DevOps → Azure Pipelines
Gitea → Gitea Actions
Forgejo → Forgejo Actions

And then you have independent CI/CD/workflow platforms:
Jenkins
CircleCI
TeamCity
Argo Workflows

I put together a practical guide explaining:
→ what a code hosting platform actually does
→ what CI/CD adds
→ why companies sometimes use an external CI/CD platform
→ how Jenkins, CircleCI and TeamCity differ
→ why Argo is a different category
→ the pipeline/configuration file for each platform
→ which tools are worth learning as a developer

The goal isn't to memorize 10 YAML syntaxes.
It's to understand the architecture behind them.
Learn the concepts first. Choose the platform second.

Full article: https://taher-el-mehdi.hashnode.dev/code-hosting-vs-ci-cd-github-actions-gitlab-ci-jenkins-circleci-argo-workflows-and-more-what-actually-fits-your-stack