Kubernetes: GitOps with ArgoCD

Introduction

• Continuous delivery of infrastructure with Argo CD
• Quick prerequisite technology overview

1. Getting Started with Argo CD

• GitOps for infrastructure automation
• Introducing Argo CD
• Argo CD for continuous integration of infrastructure
• Creating a local K3s cluster
• Architectural overview

2. Working with Argo CD on a Local Kubernetes Cluster

• Installing Argo CD services and the CLI
• Running the Argo CD web UI
• Setting up a Git repo with manifest specifications
• Deploying an application using Argo CD

3. Configuring the Argo CD Application

• Changing the Argo CD admin password
• Syncing updated infrastructure manifests
• Configuring deployments using kubectl
• Automated sync, automated pruning, and self-healing

4. Deploying Infrastructure to External Kubernetes Cluster

• Creating an external K3s cluster
• Creating a new Argo CD project using the CLI
• Building and registering a custom Docker image
• Pushing infrastructure specifications to a private Git repo
• Deploying a Flask application to an external cluster
• Updating the custom application

5. Deploying Infrastructure to Google Kubernetes Engine

• Enabling the Kubernetes Engine API
• Connecting to a GitHub repo using SSH
• Creating a GKE cluster
• Setting up Argo CD on GKE
• Registering the app image with GCR
• Configuring the image secret with a service account
• Connecting Argo CD to a private Git repo using SSH
• Deploying infrastructure to the GKE cluster

Conclusion

• Summary and next steps