DCD-224: Rename product_download to tgz_download in prep for an alternative installer.

roles/tgz_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/tgz_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/tgz_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: 0644
+    force: false
+
+- name: Create target version directory
+  file:
+    path: "{{ atl_product_installation_base }}/{{ atl_product_version }}"
+    state: directory
+    owner: "{{ atl_product_user }}"
+
+- name: Unpack the product packages
+  unarchive:
+    remote_src: true
+    src: "{{ atl_product_download }}"
+    dest: "{{ atl_product_installation_base }}/{{ atl_product_version }}"
+    creates: "{{ atl_product_installation_base }}/{{ atl_product_version }}/bin/catalina.sh"
+    owner: "{{ atl_product_user }}"
+    group: "{{ atl_product_user }}"
+    mode: 0755
+    # Strip off the lead product/version specific directory to normaise naming
+    extra_opts:
+      - "--strip-components=1"
+
+- name: Symlink the installed version to current
+  file:
+    src: "{{ atl_product_installation_base }}/{{ atl_product_version }}"
+    dest: "{{ atl_product_installation_target }}"
+    state: link
+    force: true

roles/tgz_download/tasks/main.yml

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+---
+
+# 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/tgz_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/tgz_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 }}"
+        atl_download_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"
+
+
+# We now have a ServiceDesk version, fetch the metadata to give us the
+# download URL and Jira versioning information.
+- name: Fetch the ServiceDesk metadata from marketplace
+  set_fact:
+    atl_servicedesk_version_json: "{{ lookup('url', '{{ atl_servicedesk_versioned_url }}') }}"
+
+- name: Extract the version and download information from the ServiceDesk metadata
+  set_fact:
+    atl_download_edition: "jira-software"
+    atl_download_version: "{{ atl_servicedesk_version_json.compatibilities[0].hosting.server.max.version }}"
+    atl_servicedesk_download_url: "{{ atl_servicedesk_version_json._embedded.artifact._links.binary.href }}"
+
+
+- name: Fetch and unpack the Jira edition
+  include_tasks: "fetch_product.yml"
+
+
+# FIXME: The following is a bit of a special-case for now; ideally we
+# should convert this into a general plugin-installation role
+# (esp. when we get to supporting Portfolio), but there's no use for ATM.
+- name: Download ServiceDesk
+  get_url:
+    url: "{{ atl_servicedesk_download_url }}"
+    dest: "{{ atl_servicedesk_download_file }}"
+    mode: 0640
+    force: false
+
+- name: Extract the plugin to the shared plugin directory
+  command: /usr/bin/unzip -jn "{{ atl_servicedesk_download_file }}" "*.jar"
+  args:
+    chdir: "{{ atl_product_shared_plugins }}"
+    creates: "{{ atl_product_shared_plugins }}/*servicedesk*.jar"
+    warn: false
+
+- name: Make plugins writable by the Jira user
+  file:
+    path: "{{ atl_product_shared_plugins }}"
+    owner: "{{ atl_product_user }}"
+    group: "{{ atl_product_user }}"
+    mode: 0750
+    recurse: true