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ansible-minecraft

This role installs Minecraft or Spigot and configures it to run under systemd or Supervisor.

If you're viewing this at https://github.com/devops-coop/ansible-minecraft/, you're reading the documentation for the master branch. View documentation for the latest release (3.1.0).

Requirements

• Optional: Python 2.7 on the Ansible control machine to generate user ACLs
• Optional: Ansible 2.0.2+ or curl on the control machine to fetch the latest Minecraft version

Install

ansible-galaxy install devops-coop.minecraft

Features

• supports vanilla Minecraft and Spigot

• supports Debian 8, Ubuntu 14.04, Ubuntu 16.04, and RHEL/CentOS 7

• supports different process supervisors on different platforms

  OS	Supervisor	systemd
  Debian 8	✓	✓
  Ubuntu 14.04	✓
  Ubuntu 16.04		✓
  CentOS 7		✓

• safely stops the server using stop when running under systemd

• uses Docker and Inspec to run integration tests

• manages user ACLs

• manages server.properties

• hooks: include arbitrary tasks at specific stages during execution

Versioning

This project follows semantic versioning.

In the context of semantic versioning, consider the role contract to be defined by the role variables.

• Changes that require user intervention will increase the major version. This includes changing the default value of a role variable.
• Changes that do not require user intervention, but add backwards-compatible features, will increase the minor version.
• Bug fixes will increase the patch version.

Refer to the change log for upcoming changes.

Role variables

The following variable defaults are defined in defaults/main.yml.

minecraft_version

Minecraft version to install (default: latest)

Examples:

minecraft_version: latest
minecraft_version: 1.10
minecraft_version: 1.9.1
minecraft_version: 16w21a

minecraft_url

Minecraft download URL (default: https://s3.amazonaws.com/Minecraft.Download/versions)

minecraft_user

system user Minecraft runs as (default: minecraft)

minecraft_group

system group Minecraft runs as (default: minecraft)

minecraft_home

directory to install Minecraft to (default: /srv/minecraft)

minecraft_max_memory

Java max memory (-Xmx) to allocate (default: 1024M)

minecraft_initial_memory

Java initial memory (-Xms) to allocate (default: 1024M)

minecraft_service_name

systemd service name or Supervisor program name (default: minecraft)

minecraft_supervisor_name

DEPRECATED: Supervisor program name (default: {{ minecraft_service_name }})

minecraft_process_control

Choose between systemd and supervisor (default: systemd).

minecraft_whitelist

list of Minecraft usernames to whitelist (default: [])

minecraft_ops

list of Minecraft usernames to make server ops (default: [])

minecraft_banned_players

list of Minecraft usernames to ban (default: [])

minecraft_banned_ips

list of IP addresses to ban (default: [])

minecraft_server_properties

dictionary of server.properties entries (e.g. server-port: 25565) to set (default: {})

minecraft_server

choose between minecraft or spigot (default: minecraft)

Hooks and run stages

ansible-minecraft organizes execution into a number of run stages:

setup

• install prerequisites (e.g., Java)
• create Minecraft user and group

download

• fetch the latest version of from the launcher API
• download Minecraft

install

• symlink version to minecraft_server.jar
• agree to EULA

acl

• configure server ACLs (whitelist, banned players, etc.)

configure

• set server.properties

start

• (re)start server

You can execute custom tasks before or after specific stages. Simply specify a task include file using the relevant role variable:

- hosts: minecraft
  roles:
    - role: devops-coop.minecraft
      minecraft_hook_before_start: "{{ playbook_dir }}/download-world-from-s3.yml"

The available hooks are:

minecraft_hook_before_setup

run before setup tasks

minecraft_hook_after_setup

run after setup tasks

minecraft_hook_before_download

run before download tasks

minecraft_hook_after_download

run after download tasks

minecraft_hook_before_install

run before install tasks

minecraft_hook_after_install

run after install tasks

minecraft_hook_before_start

run before start tasks

minecraft_hook_after_start

run after start tasks

Example

- hosts: minecraft
  roles:
     - { role: devops-coop.minecraft, minecraft_whitelist: ["jeb_", "dinnerbone"]}

Contributing

The best way to contribute is to use this role to deploy your own Minecraft server! We really appreciate bug reports from the wild.

If you'd like to help with the project itself, here are some other ways you can contribute:

• Add support for additional servers like Cuberite.
• Write integration tests for Minecraft- or Spigot-specific configuration.
• Share useful hooks.

Testing

Testing can be done using the provided Vagrantfile or by installing Docker and Docker Compose locally.

Testing with Vagrant

This role includes a Vagrantfile used with a Docker-based test harness that approximates the Travis CI setup for integration testing. Using Vagrant allows all contributors to test on the same platform and avoid false test failures due to untested or incompatible docker versions.

1. Install Vagrant and VirtualBox.

2. Run vagrant up from the same directory as the Vagrantfile in this repository.

3. SSH into the VM with: vagrant ssh

4. Run tests with make.

   make -C /vagrant xenial64 test
   

Integration tests use systemd by default. Set PROCESS_CONTROL to change this:

make -C /vagrant trusty64 test PROCESS_CONTROL=supervisor

See make help for more information including a full list of available targets.

Testing with Docker and Docker Compose locally

Alternatively, you can install Docker and Docker Compose to run these tests locally on your machine.

1. Install Docker and Docker Compose.

2. Run tests with make.

   make jessie64 test
   

Integration tests use systemd by default. Set PROCESS_CONTROL to change this:

make trusty64 test PROCESS_CONTROL=supervisor

See make help for more information including a full list of available targets.

License

Apache 2.0

Disclaimer

To automate the installation, this role automatically accepts the Minecraft EULA. Be aware that by using this role, you implicitly accept the same EULA.