ArgoCD_Presentation overview and git ops

argocd overview

1. Introduction to ArgoCD A GitOps Continuous Delivery Tool for Kubernetes Presenter Name & Date

2. What is ArgoCD? - ArgoCD is a declarative, GitOps-based continuous delivery tool for Kubernetes. - Ensures that the desired application state defined in Git is synchronized with the cluster. - Part of the Argo project, designed to improve Kubernetes deployments.

3. Why ArgoCD? - GitOps Approach: Uses Git as a single source of truth. - Automated Synchronization: Ensures Kubernetes clusters match the desired state. - Visibility & Auditing: UI and CLI provide full insight into deployment states. - Rollback & History: Easy rollback to previous configurations. - Multi-Cluster Support: Manage multiple clusters from a single instance.

4. ArgoCD Architecture - API Server: Exposes functionalities via REST and gRPC. - Repositories: Git repositories containing Kubernetes manifests. - Application Controller: Monitors application states and reconciles differences. - Dex Authentication: Supports multiple authentication providers.

5. ArgoCD Workflow 1. Developer pushes changes to Git repository. 2. ArgoCD detects changes and pulls updated configurations. 3. ArgoCD syncs the desired state with Kubernetes. 4. Application is deployed or updated automatically. 5. Monitoring & rollback options available.

6. ArgoCD Features - Declarative and automated deployments. - Sync policies (manual, automatic, prune, self-heal). - Web UI, CLI, and API access. - Role-Based Access Control (RBAC). - Support for Helm, Kustomize, and Jsonnet. - Multi-cluster management.

7. Installing ArgoCD 1. Install ArgoCD in a Kubernetes cluster: kubectl create namespace argocd kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml 2. Access ArgoCD UI: kubectl port-forward svc/argocd-server -n argocd 8080:443

8. Deploying an Application with ArgoCD 1. Register a Git repository containing Kubernetes manifests. 2. Create an ArgoCD application: argocd app create my-app \ --repo https://github.com/example/repo.git \ --path ./manifests \ --dest-server https://kubernetes.default.svc \ --dest-namespace default 3. Sync the application: argocd app sync my-app

9. ArgoCD UI Overview - Shows application health and sync status. - Allows manual sync, rollback, and diff viewing. - Provides logs and event tracking.

10. ArgoCD vs Other CD Tools | Feature | ArgoCD | FluxCD | Jenkins X | Spinnaker | |-----------------|--------|--------|-----------|-----------| | GitOps-based | ✅ | ✅ | ❌ | ❌ | | UI Dashboard | ✅ | ❌ | ✅ | ✅ | | Multi-cluster | ✅ | ✅ | ❌ | ✅ | | Helm Support | ✅ | ✅ | ✅ | ✅ |

11. Best Practices - Organize Git repositories using GitOps principles. - Enable automatic sync and self-healing. - Use RBAC for secure access management. - Monitor deployments and use notifications. - Regularly audit and update configurations.

12. Conclusion & Q&A - ArgoCD is a powerful GitOps-based CD tool for Kubernetes. - Ensures automated, secure, and scalable application delivery. - Integrates well with Helm, Kustomize, and other Kubernetes tools. - Any questions?