deploy-spigot.yml

---
- name: Set up Spigot Minecraft server
  hosts: localhost
  become: yes
  vars:
    minecraft_user: minecraft
    server_directory: /home/{{ minecraft_user }}/server
    buildtools_directory: /home/{{ minecraft_user }}/buildtools

  tasks:
    - name: Gathering Facts
      setup:

    - name: Uninstall existing JDK
      apt:
        name: openjdk-*
        state: absent

    - name: Install OpenJDK 17
      apt:
        name: openjdk-17-jdk
        state: present
        update_cache: yes

    - name: Install required packages
      apt:
        name: "{{ item }}"
        state: present
        update_cache: yes
      loop:
        - apt-transport-https
        - cron
        - ddclient
        - git
        - gnupg
        - nano
        - openssh-server
        - openvpn
        - screen
        - ufw
        - wget

    - name: Allow OpenSSH
      ufw:
        rule: allow
        port: 22

    - name: Allow Minecraft server port
      ufw:
        rule: allow
        port: 25565

    - name: Create 'minecraft' user
      user:
        name: "{{ minecraft_user }}"
        home: "/home/{{ minecraft_user }}"
        shell: /bin/bash
        createhome: yes

    - name: Create buildtools and server directories
      file:
        path: "{{ item }}"
        state: directory
        owner: "{{ minecraft_user }}"
        group: "{{ minecraft_user }}"
        mode: 0755
      loop:
        - "{{ buildtools_directory }}"
        - "{{ server_directory }}"

    - name: Download and build Spigot
      become_user: "{{ minecraft_user }}"
      shell: "wget -O {{ buildtools_directory }}/BuildTools.jar https://hub.spigotmc.org/jenkins/job/BuildTools/lastSuccessfulBuild/artifact/target/BuildTools.jar && java -jar {{ buildtools_directory }}/BuildTools.jar"
      args:
        chdir: "{{ buildtools_directory }}"

    - name: Create start script for Spigot server
      become_user: minecraft
      copy:
        content: |
          #!/bin/sh
          java -Xms6G -Xmx6G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true -jar /home/minecraft/server/spigot.jar nogui
        dest: /home/minecraft/server/spigotstart.sh
        mode: '0755'

    - name: Create update script for OS
      become_user: minecraft
      copy:
        content: |
          #!/bin/bash
          # Update server packages
          apt update && apt upgrade -y
          # Run security updates
          apt-get --only-upgrade install -y unattended-upgrades
        dest: /home/minecraft/server/update_server_OS.sh
        mode: '0755'

    - name: Create update script for Spigot
      become_user: minecraft
      copy:
        content: |
          #!/bin/bash
          # Prompt for backup directory
          read -p "Enter the backup directory path: " backup_directory
          # Create backup directory if it doesn't exist
          mkdir -p "$backup_directory"
          # Backup the server
          tar -cvf "$backup_directory/$(date '+%Y-%m-%d_%H-%M-%S').tar" "{{ server_directory }}"
          # Download and build the latest Spigot
          cd "{{ buildtools_directory }}"
          wget -O BuildTools.jar https://hub.spigotmc.org/jenkins/job/BuildTools/lastSuccessfulBuild/artifact/target/BuildTools.jar
          java -jar BuildTools.jar
          # Move the newly built Spigot server file
          cp spigot-*.jar "{{ server_directory }}/spigot.jar"
        dest: /home/minecraft/server/update_spigot.sh
        mode: '0755'

    - name: Create world backup script
      become_user: minecraft
      copy:
        content: |
          #!/bin/bash
          # Escape special characters in the world name
          world_name=$(printf '%q' "$1")
          # Get the destination folder
          destination_folder="$2"
          # Create the backup directory if it doesn't exist
          mkdir -p "$destination_folder"
          # Backup the server
          tar -cvf "$destination_folder/$(date '+%Y-%m-%d_%H-%M-%S').tar" "{{ server_directory }}/$world_name"
        dest: /home/minecraft/server/world_backup_script.sh
        mode: '0755'

    - name: Start Spigot server once
      become_user: "{{ minecraft_user }}"
      command: "sudo -u minecraft screen -dmS minecraft {{ server_directory }}/spigotstart.sh"
      args:
        chdir: "{{ server_directory }}"
      ignore_errors: yes
      register: server_output

    - name: Print Server Log
      debug:
        var: server_output.stdout_lines

    - name: Accept Minecraft EULA
      become_user: "{{ minecraft_user }}"
      command: echo "eula=true" > eula.txt
      args:
        chdir: "{{ server_directory }}"

    - name: Stop Spigot server
      become_user: "{{ minecraft_user }}"
      shell: "screen -S minecraft -p 0 -X stuff 'stop\n'"
      args:
        chdir: "{{ server_directory }}"
      ignore_errors: yes

    - name: Wait for server to stop
      pause:
        seconds: 10

    - name: Create Spigot service
      copy:
        dest: /etc/systemd/system/spigot.service
        content: |
          [Unit]
          Description=SpigotMC
          After=network.target

          [Service]
          Type=forking
          User=minecraft
          Group=minecraft
          ExecStart=/usr/bin/screen -d -m -S minecraft /home/minecraft/server/spigotstart.sh
          ExecStop=/usr/bin/screen -S minecraft -p 0 -X stuff "stop$(printf \\r)"
          WorkingDirectory=/home/minecraft/server

          [Install]
          WantedBy=multi-user.target
      notify: Restart Spigot service

    - name: Start Spigot server
      become_user: "{{ minecraft_user }}"
      command: "sudo -u minecraft screen -dmS minecraft {{ server_directory }}/spigotstart.sh"
      args:
        chdir: "{{ server_directory }}"
      ignore_errors: yes
      register: server_output

    - name: Create cron job for server updates
      cron:
        name: Minecraft Server Update
        minute: "0"
        hour: "4"
        job: "/home/minecraft/server/update_server.sh"

    - name: Generate documentation
      copy:
        content: |
          Minecraft Server Documentation
          ----------------------------

          Deployment Method: Ansible

          Automations:
          - Daily server update cron job (4 AM).

          Available functions:
          - Start the server: sudo systemctl start spigot
          - Stop the server: sudo systemctl stop spigot
          - Restart the server: sudo systemctl restart spigot

          Update Scripts:
          - Server Update: /home/minecraft/server/update_server.sh
          - Spigot Update: /home/minecraft/server/update_spigot.sh

          World Backup:
          - Usage: /path/to/world_backup_script.sh "world_name" "destination_folder"

        dest: "{{ server_directory }}/readme.txt"

    - name: Print Server Log
      debug:
        var: server_output.stdout_lines

    - name: Debug Server Log
      debug:
        var: server_output