GitOps_Without_K8s_Training_detailed git repository
- 1. GitOps Without Kubernetes - Telkom University • 2 Day Online Training
- 2. What is GitOps? • GitOps is a workflow where Git is the source of truth for system configurations. • Key Principles: • - Git = desired state • - Automation applies that state • - Changes are tracked and auditable
- 3. GitOps Workflow (Non-K8s) • Git Repository → GitHub Actions → SSH → Server → Docker/Ansible/Terraform
- 4. Benefits of GitOps Without Kubernetes • - Full audit trail with Git • - Declarative system management • - Automation reduces manual errors • - Works for VM, Docker, Bare Metal, Cloud • - Flexible with existing tools
- 5. Core Tools for GitOps • - Git (Source of truth) • - GitHub Actions (Automation trigger) • - SSH (Secure server access) • - Docker Compose (App container management) • - Ansible (Server configuration) • - Terraform (Infrastructure provisioning)
- 6. Infrastructure as Code (IaC) • - Define infrastructure and config as code • - Version controlled in Git • - Examples: Docker Compose, Ansible, Terraform
- 7. Git Workflow for GitOps • - Branch strategy: main, feature branches • - PR approval process • - Automation triggered on merge to main • - Git reflects current system state
- 8. GitHub Actions Example - Docker Compose • Example workflow for Docker Compose deployment with SSH
- 9. GitHub Actions Example - Ansible • Example workflow to trigger Ansible playbook via SSH
- 10. GitHub Actions Example - Terraform • Example workflow to apply Terraform config via SSH
- 11. Security Considerations • - Protect SSH keys with GitHub Secrets • - Main branch protection & PR reviews • - Minimize direct server access • - Optional Bastion Host for SSH control
- 12. Monitoring & Observability • - GitHub Actions logs • - Application logs on server • - Service health checks • - Drift detection: Terraform plan, Ansible check mode
- 13. Hands-On Simulation • 1. Commit change to Docker Compose • 2. GitHub Actions triggered • 3. SSH to server & apply changes • 4. Verify system follows Git state
- 14. Summary • - GitOps works beyond Kubernetes • - GitHub Actions + Docker/Ansible/Terraform = GitOps workflow • - Secure, auditable, automated deployment • - Suitable for VMs, bare metal, cloud
- 15. Q&A and Closing • Thank you for participating! • Questions?
- 16. Git Basics & Common Commands • - Git is a version control system to track changes in code or configurations. • Common Git Commands: • - git clone <repo_url> # Copy a repository • - git status # See current changes • - git add . # Stage all changes • - git commit -m "msg" # Commit staged