vprocopan/devops

excercises for DevOps

DevOps excercises

A prerequisite would be to know the basis for the

1. Local environment setup

Create a local Kind or MicroK8s cluster and install argocd in it some help can be found here

• https://medium.com/ibm-cloud/gitops-quick-start-with-kubernetes-kind-cluster-5677f94adf69
• https://ubuntu.com/tutorials/install-a-local-kubernetes-with-microk8s#1-overview
• https://argo-cd.readthedocs.io/en/stable/getting_started/ Parameters:
• Use this repository as the backing repo
• create a branch for your cluster
• location cluster/

2. The following excercise main purpose is to develop practical kubernetes/git/gitops skills

Deploy app1 and app2 in namespace stage using argocd The application images are published under aandonov/app1:latest and aandonov/app2:latest in dockerhub. The applications are only nginx, so deploy them in scale=1 and as a regular deployment in namespace local

3. Promoting the image

• Alter the github action (to be a PR/merge when ready) to build a semver tag of the image (app1 and app2 respectively) based on the commit sha in github stage-<vM.m.p>-<hash>
• After every successful merge the build config will be reset so that the next person has the chance
• in ArgoCD prepare a 2nd deployment in namespace stage of the 2 apps
• create deployment based on the semver of the image above

4. Some networking fun

• Deploy istio in the local cluster
• mark namespace local for injection
• define an ingressgateway/vsvc to both applications in local namespace

5. Networking not so fun

• Using argocd rollout, prepare a canary deployment for app1

6. Argo workflows

To be done together