Blueprint: OTC GitOps

This repository serves as a blueprint to start fast and easy with OTC GitOps

Requirements

1. Set up the infrastructure according to the README with this Github Template: https://github.com/iits-consulting/otc-terraform-template
2. After you sourced the shell-helper.sh you can run getElbPublicIp. Please send me this IP.
3. I will create a DNS A Entry for you and give you the domain name

Access ArgoCD UI

If you didn't source the shell-helper.sh in the https://github.com/iits-consulting/otc-terraform-template project please do so by running:

source shell-helper.sh

Now you are able to execute the argo command. Run the argo command. This will do the following:

1. Print out the Username and the Password on the first line
2. The browser should open automatically and open a tab to the ArgoCD UI. If it does not open a browser, you can do it yourself by opening this url: http://localhost:8080/argocd
3. You should see that ArgoCD automatically already installed:
   • infrastructure-charts
   • argocd-config
   • traefik

Deploy some services

1. In the stages/dev/infrastructure-charts/values.yaml set the value in global.helmValues for dns.host to the domain name which you received before.
2. You need to commit this change to the git repository such that ArgoCD detects the changes and applies them.
3. If you want to deploy some services you need to enter them in the stages/dev/infrastructure-charts/values.yaml in the same schema as the others. The charts representing these services have to be either in /apps or in /stages/dev/infrastructure-charts/apps
4. Press refresh on all the services inside the ArgoCD UI. After some times you should get some certificates, and you can access your admin domain

Adjust services

Now let's adjust some service.

1. Please change inside stages/dev/infrastructure-charts/values.yaml the number of traefik replicas from 1 to 2
2. Commit your changes
3. Check the service in the ArgoCD UI and verify that it scaled up

The End

Congrats!

You have now a full working Terraform, ArgoCD GitOps Setup.

If you like try to deploy some new services and play a little bit with your new setup