build(other): custom vagrant box with packer

Motivation
----------
This PR solves two problems:
1. A custom vagrant box is built for better reproducibility (no more changes
   during runtime)
1. The code in the vagrant box needs the *local code* so we can actually test
   out local changes, not the ones pushed to Github.

How to test
-----------
1. Follow infrastructure/README.md

infrastructure/.gitignore

@@ -0,0 +1,3 @@
+packer-output/
+archive/**/*
+!archive/.gitkeep

infrastructure/README.md

@@ -0,0 +1,31 @@
+# Infrastructure
+
+This folder contains our infrastructure as code.
+
+The [benefits](https://www.redhat.com/en/topics/automation/what-is-infrastructure-as-code-iac#benefits-of-iac) of this paradigm are:
+- Cost reduction
+- Increase in speed of deployments
+- Reduce errors 
+- Improve infrastructure consistency
+- Eliminate configuration drift
+
+## Local setup
+
+The following will set up virtual machines locally so you can test out if
+a change breaks the deployment.
+
+1. Install [packer](https://www.packer.io/) on your machine
+1. `cd infrastructure/`
+1. `packer init ./vagrant.pkr.hcl`
+
+### (Re)build Vagrant box
+
+1. Install [Vagrant](https://www.vagrantup.com/) and [VirtualBox](https://www.virtualbox.org/) on your machine
+1. `packer build --force --on-error=ask ./vagrant.pkr.hcl`
+1. `cd vagrant && vagrant up`
+1. Following services are running:
+- <http://localhost:8000/>
+- <http://localhost:8000/api>
+- <http://localhost:8000/docs>
+- <http://localhost:8080>
+- <http://localhost:8082>

infrastructure/bootstrap.sh

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+
+set -euxo pipefail
+
+apk update
+apk upgrade
+apk add nginx openrc nodejs npm git mysql mysql-client
+
+npm install -g pnpm pm2
+pm2 startup
+
+rc-update add pm2 boot
+rc-update add nginx boot
+service nginx start
+
+service mariadb setup
+rc-update add mariadb boot
+sed -e '/skip-networking/ s/^#*/#/' -i /etc/my.cnf.d/mariadb-server.cnf
+service mariadb start
+
+
+PROJECT_ROOT=/var/www/localhost/htdocs/dreammall.earth
+
+mkdir -p /etc/nginx/http.d
+cp -f $PROJECT_ROOT/deployment/nginx/default.conf /etc/nginx/http.d/default.conf
+cp $PROJECT_ROOT/deployment/nginx/frontend.conf /etc/nginx/http.d/frontend.conf
+cp $PROJECT_ROOT/deployment/nginx/admin.conf /etc/nginx/http.d/admin.conf
+
+mysql -e "CREATE USER 'dreammall'@'localhost' IDENTIFIED BY 'SECRET'; GRANT ALL PRIVILEGES ON * . * TO 'dreammall'@'localhost'; FLUSH PRIVILEGES;"
+
+cp $PROJECT_ROOT/backend/.env.dist $PROJECT_ROOT/backend/.env
+cp $PROJECT_ROOT/presenter/.env.dist $PROJECT_ROOT/presenter/.env
+cp $PROJECT_ROOT/frontend/.env.dist $PROJECT_ROOT/frontend/.env
+cp $PROJECT_ROOT/admin/.env.dist $PROJECT_ROOT/admin/.env
+
+$PROJECT_ROOT/deployment/deploy.sh

infrastructure/vagrant.pkr.hcl

@@ -0,0 +1,69 @@
+packer {
+  required_plugins {
+    vagrant = {
+      version = "~> 1"
+      source  = "github.com/hashicorp/vagrant"
+    }
+  }
+}
+
+source "vagrant" "dreammall" {
+  communicator = "ssh"
+  source_path  = "generic/alpine319"
+  provider     = "virtualbox"
+  add_force    = true
+
+  output_dir = "packer-output"
+}
+
+build {
+  sources = ["sources.vagrant.dreammall"]
+
+
+  provisioner "shell-local" {
+    inline = [
+      "rm -rf archive",
+      "git clone ../ archive",
+      "cd archive",
+      "git remote set-url origin https://github.com/dreammall-earth/dreammall.earth.git", # only necessary because of the `git pull -ff` in `deploy.sh`
+      "git checkout master",
+      "git pull -ff",
+      "touch .gitkeep",
+    ]
+  }
+
+  provisioner "file" {
+    source      = "archive"
+    destination = "/tmp"
+  }
+
+  provisioner "shell" {
+    execute_command = "echo 'packer' | sudo -S sh -c '{{ .Vars }} {{ .Path }}'"
+    inline = [
+      "mkdir -p /var/www/localhost/htdocs/",
+      "mv /tmp/archive /var/www/localhost/htdocs/dreammall.earth",
+    ]
+  }
+
+  provisioner "shell" {
+    execute_command = "echo 'packer' | sudo -S sh -c '{{ .Vars }} {{ .Path }}'"
+    script          = "./bootstrap.sh"
+  }
+
+  provisioner "shell-local" {
+    inline = [
+      "rm -rf archive/",
+      "mkdir -p archive/",
+      "touch archive/.gitkeep",
+    ]
+  }
+
+  error-cleanup-provisioner "shell-local" {
+    inline = [
+      "rm -rf archive/",
+      "mkdir -p archive/",
+      "touch archive/.gitkeep",
+    ]
+  }
+}
+

deployment/local-testing/Vagrantfile → infrastructure/vagrant/Vagrantfile

@@ -1,11 +1,6 @@
-# Defines our Vagrant environment
-#
-# -*- mode: ruby -*-
-# vi: set ft=ruby :
-
 Vagrant.configure("2") do |config|
-  config.vm.box = 'generic/alpine319'
-  config.vm.provision :shell, path: "bootstrap.sh"
+  config.vm.box = "packer_dreammall"
+  config.vm.box_url = "file://../packer-output/package.box"
   config.vm.synced_folder '.', '/vagrant', disabled: true
   config.vm.network "forwarded_port", guest: 80, host: 8000
   config.vm.network "forwarded_port", guest: 8080, host: 8080