DCD-224: Create a role for installation with the binary installer.

roles/installer_download/tasks/cached_version_fetch.yml

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+---
+
+- name: Check for existing version cache file
+  stat:
+    path: "{{ atl_product_version_cache }}"
+  register: cached
+
+# Case: File exists, always use its value
+- name: Use version for product version
+  block:
+
+    - name: Read cached version from file
+      command: "cat {{ atl_product_version_cache }}"
+      register: atl_product_version_file
+      changed_when: false
+
+    - name: Set the local var to cached version
+      set_fact:
+        atl_product_version: "{{ atl_product_version_file.stdout }}"
+
+  when: cached.stat.exists

roles/installer_download/tasks/cached_version_write.yml

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+---
+
+# At this point atl_product_version should be set, cache if necessary.
+- name: Write override cached version when specified
+  template:
+    src: version.j2
+    dest: "{{ atl_product_version_cache }}"
+    force: false

roles/installer_download/tasks/fetch_product.yml

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+---
+
+# Note: We don't the cache binary in the shared drive to the complexity
+# around download race-conditions if multiple nodes are starting at
+# the same time. When downloading from product-downloads.atlassian.com
+# (which is a CDN) takes seconds anyway.
+- name: Fetch product installer
+  get_url:
+    url: "{{ atl_product_download_url }}"
+    dest: "{{ atl_product_download }}"
+    mode: 0755
+    force: false
+
+- name: Create installer varfile
+  template:
+    src: "{{ atl_product_family }}.varfile.j2"
+    dest: "{{ atl_product_varfile }}"
+
+- name: Run the installer
+  command: /bin/sh "{{ atl_product_download }}" -q -varfile "{{ atl_product_varfile }}"
+  args:
+    creates: "{{ atl_product_installation_versioned }}/.install4j/"
+
+- name: Symlink the installed version to current
+  file:
+    src: "{{ atl_product_installation_versioned }}"
+    dest: "{{ atl_product_installation_current }}"
+    state: link
+    force: true

roles/installer_download/tasks/main.yml

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+---
+
+- name: Create installation directories
+  file:
+    path: "{{ item }}"
+    state: directory
+    mode: 0755
+  with_items:
+    - "{{ atl_installer_temp }}"
+    - "{{ atl_product_home_shared }}"
+
+
+# Common case for most products and Jira editions.
+- name: Fetch ServiceDesk metadata if necessary
+  include_tasks: "servicedesk_download.yml"
+  when: atl_product_edition == "jira-servicedesk"
+
+# Differences for ServiceDesk become fiddly enough that it's better to
+# just split them out and move common functionality into individual
+# task files.
+- name: Fetch product metadata if necessary
+  include_tasks: "product_download.yml"
+  when: atl_product_edition != "jira-servicedesk"

roles/installer_download/tasks/product_download.yml

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+---
+
+- name: Check for and load cached version
+  include_tasks: "cached_version_fetch.yml"
+
+
+# Case: File doesn't exist and no version has been set; find latest.
+- name: Fetch and cache latest version when no override
+  block:
+
+    - name: Fetch the latest version from URL
+      set_fact:
+        atl_product_version_json: "{{ lookup('url', '{{ atl_product_latest_version_url }}') }}"
+
+    - name: Set the local var to retrieved version
+      set_fact:
+        atl_product_version: "{{ atl_product_version_json.version }}"
+
+  when:
+    not cached.stat.exists and
+    (atl_product_version is undefined or
+     not atl_product_version or
+     atl_product_version == "latest")
+
+
+- name: Cache download version if necessary
+  include_tasks: "cached_version_write.yml"
+
+
+- name: Fetch and unpack the product distribution
+  include_tasks: "fetch_product.yml"

roles/installer_download/tasks/servicedesk_download.yml

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+---
+
+- name: Check for and load cached version
+  include_tasks: "cached_version_fetch.yml"
+
+
+# Case: File doesn't exist and no version has been set; find latest.
+- name: Fetch and cache latest version when no override
+  block:
+
+    - name: Fetch the ServiceDesk metadata from marketplace
+      set_fact:
+        atl_servicedesk_version_json: "{{ lookup('url', '{{ atl_servicedesk_latest_url }}') }}"
+
+    - name: Set the Jira version for ServiceDesk
+      set_fact:
+        atl_product_version: "{{ atl_servicedesk_version_json.name }}"
+
+  when:
+    not cached.stat.exists and
+    (atl_product_version is undefined or
+     not atl_product_version or
+     atl_product_version == "latest")
+
+- name: Cache download version if necessary
+  include_tasks: "cached_version_write.yml"
+
+
+- name: Set the download edition for ServiceDesk
+  set_fact:
+    atl_download_edition: "servicedesk"
+
+- name: Fetch and unpack the product distribution
+  include_tasks: "fetch_product.yml"