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AmauryCarradeAmauryCarrade
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Added complete game server instance command and build
- Instance automatically created using OVH API - Startup scripts installed to server - Instance installed with required packages - Server automatically started in screen
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19 files changed

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‎.gitmodules

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[submodule "collections/ansible_collections/synthesio/ovh"]
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path = collections/ansible_collections/synthesio/ovh
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url = https://github.com/synthesio/infra-ovh-ansible-module

‎ansible.cfg

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[defaults]
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stdout_callback = debug
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# As we connect to new hosts for the first time
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host_key_checking = False
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nocows = 1
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[ssh_connection]
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pipelining = True

‎hosts

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‎playbook.yml

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- hosts: localhost
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vars_prompt:
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- name: game
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prompt: Game to install (any filename in vars/games without extension)
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private: no
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- name: dns
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prompt: DNS entry to create (server will be available at <dns>.games.zcraft.fr)
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private: no
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pre_tasks:
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- name: Load vars from selected game ({{ game }})
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include_vars: "vars/games/{{ game }}.yml"
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roles:
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- instance
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- hosts: ovh # dynamically created by the instance role
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vars:
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# Root directory where everything will be stored.
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root: /home/amaury/.tmp/dmc/
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root: "{{ ansible_user_dir }}"
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# Where the actual Minecraft server will be installed on the machine.
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server: "{{ root }}/server"
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# Where things that need to be build (e.g. plugins) will be.
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build: "{{ root }}/build"
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vars_prompt:
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- name: game
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prompt: Game to install (any filename in vars/games without extension)
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private: no
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- name: dns
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prompt: DNS entry to create (server will be available at <dns>.games.zcraft.fr)
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private: no
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# User agent for web requests
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http_agent: "ansible-httpget/{{ ansible_version.string }} deploy-minecraft/1.0 (compatible; +https://amaury.carrade.eu/contact)"
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# We wait for the host to be reachable before gathering facts
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gather_facts: no
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pre_tasks:
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- name: Load vars from selected {{ game }}
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- name: Waiting for DNS propagation…
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wait_for_connection:
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- name: Gather facts
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setup:
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- name: Load vars from selected game ({{ game }})
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include_vars: "vars/games/{{ game }}.yml"
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roles:

‎roles/gameserver/tasks/game.yml

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- name: Download latest Paper for {{ minecraft_version }}
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get_url:
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url: "https://papermc.io/api/v1/paper/{{ minecraft_version }}/latest/download"
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dest: "{{ server }}/paper.jar"
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http_agent: "{{ http_agent }}"
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- name: Accept EULA
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copy:
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dest: "{{ server }}/eula.txt"
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content: |
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# Accepted by deploy-minecraft ansible playbook
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eula=true
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- name: Generate server properties
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template:
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src: "server.properties.j2"
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dest: "{{ server }}/server.properties"
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- name: Install plugins from Spigot
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include_role:
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name: install-plugin-spigot
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vars:
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plugin_name: "{{ plugin.name }}"
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spigot_id: "{{ plugin.spigot_id }}"
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loop: "{{ plugins }}"
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when: plugin.type == "spigot"
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loop_control:
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loop_var: plugin
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- name: Install plugins from direct link
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include_role:
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name: install-plugin-link
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vars:
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plugin_name: "{{ plugin.name }}"
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plugin_link: "{{ plugin.link }}"
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loop: "{{ plugins }}"
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when: plugin.type == "link"
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loop_control:
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loop_var: plugin
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- name: Install plugins from Maven build
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include_role:
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name: install-plugin-maven
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vars:
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plugin_name: "{{ plugin.name }}"
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plugin_repo: "{{ plugin.repo }}"
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plugin_branch: "{{ plugin.branch }}"
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loop: "{{ plugins }}"
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when: plugin.type == "maven"
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loop_control:
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loop_var: plugin
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- name: Install management scripts
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copy:
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src: "{{ item }}"
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dest: "{{ root }}/"
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mode: u=rwx,g=rx,o=rx
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with_fileglob:
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- "templates/*.sh"
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- name: Install time-broadcast cron
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cron:
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name: Time broadcast
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special_time: hourly
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job: "cd && ./ ./broadcast_time.sh > {{ root }}/log.log 2>&1"
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- name: Start server
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shell: "./boot_server.sh server {{ minecraft_ram }}"

‎roles/gameserver/tasks/main.yml

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- name: Checks if everything is ok
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ansible.builtin.debug:
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msg: Creating game {{ game }} using Minecraft {{ minecraft_version }}
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- name: Install server
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import_tasks: system.yml
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- name: Install game server
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import_tasks: game.yml
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- name: Display SSH connection
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debug:
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msg: "Connect to console with ssh {{ ansible_user_id }}@{{ ansible_default_ipv4.address }} or {{ ansible_user_id }}@{{ dns }}.games.zcraft.fr, then run screen -r zcraft_server"
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- name: Display Minecraft server connection
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debug:
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msg: "Minecraft server is available at {{ dns }}.games.zcraft.fr or {{ ansible_default_ipv4.address }} on {{ minecraft_version }}"

‎roles/gameserver/tasks/system.yml

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- name: Create folders
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file:
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path: "{{ item }}"
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state: directory
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loop:
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- "{{ server }}"
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- "{{ server }}/plugins"
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- "{{ build }}"
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- name: Install packages
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apt:
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name:
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# Tools & monitoring
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- htop
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- tree
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# Plugins build
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- git
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- maven
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# Time broadcast scripts
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- jq
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# To host/boot the Paper server
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- screen
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- default-jre
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become: true
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- name: Install micro
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shell: curl https://getmic.ro | bash

‎roles/gameserver/templates/boot_server.sh

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#!/bin/sh
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# Starts a Minecraft server. Creates a screen named `zcraft_folder_name` and
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# runs the Minecraft server in it.
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ARGC=$#
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if [ $ARGC -ne 2 ]; then
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echo "Usage: $0 <folder_name> <RAM_in_MB>"
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fi
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FOLDER=$1
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RAM=$2
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SCREEN_NAME="zcraft_$FOLDER"
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screen -dmS $SCREEN_NAME sh
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screen -S $SCREEN_NAME -X stuff "sh ./boot_server_screen.sh $FOLDER $RAM && exit
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"

‎roles/gameserver/templates/boot_server_screen.sh

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#!/bin/sh
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# Boots a Minecraft server.
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ARGC=$#
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if [ $ARGC -ne 2 ]; then
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echo "Usage: $0 <folder_name> <RAM_in_MB>"
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exit
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fi
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FOLDER=$1
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RAM=$2
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REBOOT_DELAY=6
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mkdir -p "$FOLDER"
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cd "$FOLDER" || exit
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while :
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do
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java -Xms${RAM} -Xmx${RAM} -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 \
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-XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch \
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-XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 \
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-XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 \
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-XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 \
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-XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs \
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-Daikars.new.flags=true -jar paper.jar --nogui
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echo
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echo
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echo
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echo
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echo "Restarting server in $REBOOT_DELAY seconds... (hit ^C then ^D to abort)"
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sleep $REBOOT_DELAY
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done

‎roles/gameserver/templates/broadcast_command.sh

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#!/bin/sh
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# Broadcasts a command to every running Minecraft server.
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ARGC=$#
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if [ $ARGC -lt 1 ]; then
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echo "Usage: $0 <command>"
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exit
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fi
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USER=pablo
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send_command () {
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screen -S $1 -X stuff "`printf "$2 \015"`"
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# Escapes are dropped. Why?
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# COMMAND=$2
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# echo $COMMAND
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# sudo -u $USER screen -S $1 -X stuff "$COMMAND"
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}
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send_command_all () {
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for i in $(screen -ls | grep '[0-9]\.zcraft[^0-9]' | awk '{ print $1 }')
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do
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send_command $i "`echo "$*" | sed 's/"/\\\"/g'`"
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done
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}
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send_command_all $@

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