Setting up

• Git clone the repo to your local machine with git clone https://github.com/EliteOneTube/divorce_app.git
• NOTE: All executions that run on localhost can be run on a different machine by changing the playbooks

Docker

• Build and run the container with docker-compose up --build -d

Ansible + Docker

• Install ansible sudo apt install ansible
• Run the playbook ansible-playbook playbooks/docker_run.yml --ask-become-pass

Ansible + Vagrant

• Install ansible sudo apt install ansible
• Install vagrant sudo apt install vagrant
• Install virtualbox sudo apt install virtualbox
• Install vagrant plugin vagrant plugin install vagrant-hostmanager
• Change directory cd vagrant
• Run vagrant vagrant up
• Run vagrant ssh-config >> ~/.ssh/config
• Run the postgres playbook ansible-playbook ../playbooks/postgres.yml -i ../hosts.yml
• Run the divorce app playbook ansible-playbook ../playbooks/spring-boot.yml -i ../hosts.yml
• Visit 192.168.56.111:8080 or 192.168.56.112:8080 to see the app running(Takes a few seconds to get up and running)

Ansible + Vagrant + Jenkins

• Install ansible sudo apt install ansible
• Install vagrant sudo apt install vagrant
• Install virtualbox sudo apt install virtualbox
• Install vagrant plugin vagrant plugin install vagrant-hostmanager
• Change directory cd vagrant
• Run vagrant vagrant up
• Run vagrant ssh-config >> ~/.ssh/config
• Run the installation playbook ansible-playbook ../playbooks/install_jenkins.yml -i ../hosts.yml --ask-become-pass
• Visit localhost:8080 to see the jenkins server and follow the instructions to set it up
• Create a new pipeline job and set the pipeline script to Jenkinsfile of this repo
• You have to create new ssh key for the jenkins user and add it to the autorized keys of the vagrant vms that run the app
• Build the job and visit 192.168.56.111:8080 to see the app running(Takes a few seconds to get up and running)

Kubernetes + ansible + jenkins

• Install microk8s & kubectl by following the instructions here
• Install ansible sudo apt install ansible
• Run the installation playbook for jenkins ansible-playbook ../playbooks/install_jenkins.yml -i ../hosts.yml --ask-become-pass
• Visit localhost:8080 to see the jenkins server and follow the instructions to set it up
• Create a new pipeline job and set the pipeline script to k8s.Jenkinsfile of this repo
• Jenkins user should be authorized with the kubernetes server
• Configure the templates files in /k8s/divorce directory
• Run the playbook ansible-playbook ../playbooks/run_k8s.yml
• Get pods with kubectl get pods
• Forward the port of the pod with kubectl port-forward pods/<pod-name> 8000:8080
• Visit localhost:8000 to see the app running(Takes a few seconds to get up and running)

Set up microk8s on a remote machine & kubectl

• Install microk8s sudo snap install microk8s --classic

• Run ip a to get the network interface name

• Run sudo ufw allow in on eth0 && sudo ufw allow out on eth0 & sudo ufw default allow routed (Replace eth0 with the network interface name)

• Access microk8s without sudo

  sudo usermod -a -G microk8s $USER

  mkdir ~/.kube

  sudo chown -f -R $USER ~/.kube

  sudo su - $USER

• Enable microk8s addons microk8s.enable dns storage ingress

• Install kubectl here

• On the remote machine run microk8s.kubectl config view --raw > $HOME/.kube/config

• Back on the local machine run scp <remote-user>@<remote-ip>:~/.kube/config ~/.kube/config

• Replace certificate-authority-data line from the config file with insecure-skip-tls-verify: true

• Replace the server ip from localhost to the remote machine ip

• Run kubectl create namespace cert-manager

• Install helm here

• Run helm repo add jetstack https://charts.jetstack.io

• Run helm repo update

• Run kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.8.0/cert-manager.crds.yaml

• Run helm install cert-manager jetstack/cert-manager --namespace cert-manager --create-namespace --version v1.8.0