Load the minecraft server.jar by dynamic url from mainfests files

Author: nolte

defaults/main.yml

@@ -1,7 +1,7 @@
 ---
 minecraft_server: minecraft
 minecraft_version: latest
-minecraft_url: https://s3.amazonaws.com/Minecraft.Download/versions
+minecraft_url: https://launcher.mojang.com/v1/objects
 minecraft_user: "{{ minecraft_server }}"
 minecraft_group: "{{ minecraft_server }}"
 minecraft_home: /srv/{{ minecraft_server }}

tasks/download/fetch_version_download-curl.yml

@@ -0,0 +1,28 @@
+---
+- name: retrieve versions manifest
+  local_action: command curl {{ minecraft_version_manifest_url }}
+  register: minecraft_versions
+
+- name: find latest release version
+  set_fact:
+    minecraft_version: "{{(version_manifest.stdout | from_json).latest.release}}"
+  when: minecraft_version == "latest"
+
+- name: use the configured minecraft version number
+  set_fact:
+    minecraft_version: "{{minecraft_version}}"
+  when: minecraft_version != "latest"
+
+- name: extract version specific mainfest file
+  set_fact:
+    minecraft_version_manifest_url: "{{ (version_manifest.stdout | from_json).versions | selectattr('id','equalto', minecraft_version ) | map(attribute='url')  | list | first }}"
+
+- name: retrieve version manifest
+  local_action: command curl {{ minecraft_version_manifest_url }}
+  register: minecraft_version_info
+
+
+- name: "extract the download url from version manifest"
+  set_fact:
+    minecraft_server_download_url: "{{(minecraft_version_info.stdout | from_json).downloads.server.url}}"
+    minecraft_server_download_checksum: "sha1:{{(minecraft_version_info.stdout | from_json).downloads.server.sha1}}"

tasks/download/fetch_version_download-uri.yml

@@ -0,0 +1,31 @@
+---
+- name: load version informations
+  uri:
+    url: "{{minecraft_version_manifest_url}}"
+    return_content: yes
+  register: minecraft_versions
+
+- name: find latest release version
+  set_fact:
+    minecraft_version: "{{minecraft_versions.json.latest.release}}"
+  when: minecraft_version == "latest"
+
+- name: use the configured minecraft version number
+  set_fact:
+    minecraft_version: "{{minecraft_version}}"
+  when: minecraft_version != "latest"
+
+- name: extract version specific mainfest file
+  set_fact:
+    minecraft_version_manifest_url: "{{ minecraft_versions.json.versions | selectattr('id','equalto', minecraft_version ) | map(attribute='url')  | list | first }}"
+
+- name: Download the version specific mainfest file
+  uri:
+    url: "{{minecraft_version_manifest_url}}"
+    return_content: yes
+  register: minecraft_version_info
+
+- name: "extract the download url from version manifest"
+  set_fact:
+    minecraft_server_download_url: "{{minecraft_version_info.json.downloads.server.url}}"
+    minecraft_server_download_checksum: "sha1:{{minecraft_version_info.json.downloads.server.sha1}}"

tasks/download/fetch_version_download.yml

@@ -0,0 +1,8 @@
+---
+- name: fetch latest version using uri module
+  include: fetch_version_download-uri.yml
+  when: ansible_version.full is version_compare('2.0.2', '>=')
+
+- name: fetch latest version using curl
+  include: fetch_version_download-curl.yml
+  when: minecraft_server_download_url is not defined

tasks/download/latest-curl.yml

@@ -1,10 +1,11 @@
-- include: latest.yml
-  when: minecraft_version == 'latest'
+- include: fetch_version_download.yml
+  when: minecraft_server_download_url is undefined
 
 - name: download Minecraft server
   get_url:
-    url: "{{ minecraft_url }}/{{ minecraft_version_latest | default(minecraft_version) }}/minecraft_server.{{ minecraft_version_latest | default(minecraft_version) }}.jar"
+    url: "{{ minecraft_server_download_url }}"
     dest: "{{ minecraft_home }}/minecraft_server.{{ minecraft_version_latest | default(minecraft_version) }}.jar"
     owner: "{{ minecraft_user }}"
     group: "{{ minecraft_group }}"
+    checksum: "{{minecraft_server_download_checksum}}"
     mode: '0755'