What you will learn
- Define Applications
- Understand sync and health
- Handle drift
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The basics, in plain English
Argo CD is a popular GitOps tool for Kubernetes. It watches a Git repository and makes your cluster match what the files say. If someone changes the live system by hand, Argo CD notices the difference and can put it back, keeping reality and your files in sync.
- Argo CD
- A GitOps tool that keeps a Kubernetes cluster matching files in Git.
- Sync
- Making the live cluster match the desired state stored in Git.
- Drift
- When the live system no longer matches the files, often from manual edits.
- Application
- In Argo CD, a defined link between a Git folder and where it should deploy.
- Healthy vs degraded
- Argo CD shows whether your deployed app is running fine or has problems.
- Self-heal
- Automatically undoing unwanted manual changes to restore the desired state.
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Pull-based delivery
Argo CD watches a repo and reconciles the cluster to match. It reports sync status and health, and can auto-heal drift.
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