feat: add deployment solution to digital ocean app platform

.github/workflows/deploy-digitalocean.yml

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+name: Deploy to DigitalOcean Droplets
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  deploy:
+    # We just check the message of first commit as there is always just one commit because we squash into one before merging
+    # "commits" contains array of objects where one of the properties is commit "message"
+    # Release workflow will be skipped if release conventional commits are not used
+    if: |
+      startsWith( github.repository, 'asyncapi/' ) && 
+      (startsWith( github.event.commits[0].message , 'fix:' ) ||
+      startsWith( github.event.commits[0].message, 'fix!:' ) ||
+      startsWith( github.event.commits[0].message, 'feat:' ) ||
+      startsWith( github.event.commits[0].message, 'feat!:' ))
+    runs-on: ubuntu-latest
+    steps:
+      - name: Deploy to DigitalOcean Droplets
+        uses: appleboy/[email protected]
+        with:
+          host: ${{ secrets.HOST }}
+          username: ${{ secrets.USERNAME }}
+          key: ${{ secrets.KEY }}
+          port: ${{ secrets.PORT }}
+          script: |
+            cd /home/${{ secrets.USERNAME }}
+            if [ ! -d "deploy" ]; then
+              git clone https://github.com/asyncapi/server-api.git deploy
+            fi
+
+            cd deploy
+            git checkout master
+            git pull origin master
+
+            # Remove old docker containers
+            docker rm -f $(docker ps -a -q)
+            # Remove old docker images
+            docker rmi -f $(docker images -a -q)
+            # Remove old docker volumes
+            docker volume rm $(docker volume ls -q)
+
+            # Build new docker image
+            docker build -t asyncapi/server-api .
+
+            # Run new docker image
+            docker run -d -p 80:80 -p 443:443 --restart always --name asyncapi-server-api asyncapi/server-api

deployments/droplets/.gitignore

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+.terraform
+terraform.tfstate
+terraform.tfstate.backup

deployments/droplets/main.tf

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+terraform {
+  required_version = ">= 1.0.0"
+
+  required_providers {
+    digitalocean = {
+      source  = "digitalocean/digitalocean"
+      version = ">= 2.0.0"
+    }
+  }
+}
+
+provider "digitalocean" {}
+
+resource "digitalocean_droplet" "server-api" {
+  image     = "ubuntu-23-10-x64"
+  name      = "server-api"
+  region    = "BLR1"
+  size      = "s-1vcpu-1gb"
+  user_data = file("server-api.yaml")
+}

deployments/droplets/output.tf

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+output "ip_address" {
+  value = digitalocean_droplet.server-api.ipv4_address
+  description = "The public IP address of your Droplet application."
+}

deployments/droplets/server-api.yaml

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+#cloud-config
+groups:
+  - ubuntu: [root,sys]
+
+users:
+  - default
+  - name: asyncapi
+    gecos: AsyncAPI
+    primary-group: ubuntu
+    groups: users, admin
+    shell: /bin/bash
+    sudo: ALL=(ALL) NOPASSWD:ALL
+    ssh-authorized-keys: 
+      - # Add your public key here
+
+runcmd:
+  - sudo apt-get update -y
+  - sudo apt install apt-transport-https ca-certificates curl software-properties-common
+  - curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
+  - sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable"
+  - sudo apt-get update -y
+  - sudo apt install docker-ce -y
+  - sudo systemctl status docker
+  # Add your user to the docker group to avoid using sudo when running docker
+  # NOTE: You need to logout and login again for this to take effect
+  - sudo systemctl enable docker
+  - sudo systemctl start docker
+  - sudo usermod -aG docker asyncapi