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DevOps Project

Content

Application

Backend

It's the same as here, so you can assume that when you navigate to /docs there is an Adminstrator with admin:admin username:password!

Frontend

It's the same as here, so you can assume that when you navigate to /#/login you can login using admin:admin as username:password.

Azure

Connecting various networks

For internal Vnets to talk to eachother, we can do either of the following:

  1. When creating a VM, choose the Vnet of choice (only one should exist)
  2. If you did not choose the same Vnet, you should create a "Peering" which connects Vnets! This means, VMs can communicate by using their internal IP!

Docker

Pull/use packages already created

  1. ghcr.io/jgenc/devops-backend, a FastAPI backend. You can access /docs to see the OpenAPI and to see what methods exists, or you can refer to the repository's openapi.json file here. Try using /api/auth/login with Postman or any other similar software
  2. ghcr.io/jgenc/devops-fronend-prod, an NGINX image that serves a SolidJS SPA. It is implemented using a hash mode router (meaning all routes must start with '#', i.e. /#/login is valid but /login is not!). Quite performant and good looking.

Docker-compose

The docker-compose.yml file will deploy the whole stack to a target, either if that's a VM, local installation, kubernetes, you name it. It pulls the latest docker images and it is tested both on Vagrant VMs and on my local machine.

Vagrant

Cursor blinking bug

Sometimes, when running vagrant up backend and afterwards I another command, let's say vagrant up db, this just does nothing! Well, I finally figured out why. The fix is the following

Kill all processes that are associated with:

  • vagrant
  • virt

I know that this sounds weird, but it fixed my weird errors...

Ansible

The backend component has a docker and a VM implementation, whilst the frontend component has docker-jenkins, docker, nginx-vm, and vite implementations. The vite one is used for local development, it's quite handy.

Example Executions

ansible-playbook -i hosts.yml -l azure-deploy-1 playbooks/frontend-docker.yml

ansible-playbook -i hosts.yml -l frontend playbooks/frontend-nginx-vm.yml

ansible-playbook -i hosts.yml -l azure-deploy-1 playbooks/backend-vm.yml

ansible-playbook -i hosts.yml -l backend playbooks/backend-docker.yml

Kubernetes

All files are under the k8s folder. There you can find files for the backend component, the frontend component, the database and the certbot. Backend and Frontend both contain an ingress file, which is useful to route all backend api calls to HOST_URL/api and all frontend to HOST_URL/ (-> /HOST_URL/#/ because of the hash mode router!)

If you want to install this to your cluster you have to kubectl apply -f <file-name> all files that are relevant to you

Example - Frontend

  • Modify frontend.env.yml
  • Modify frontend-ingress.yml
  • Apply all the files under k8s/frontend to your cluster

And you should be ready to go! Same applies to the k8s/backend and k8s/db folders

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