mirror of
https://bitbucket.org/atlassian/dc-deployments-automation.git
synced 2025-12-13 16:33:08 -06:00
296 lines
9.0 KiB
YAML
296 lines
9.0 KiB
YAML
---
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- name: Check for existing version cache file
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stat:
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path: "{{ atl_product_version_cache }}"
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register: cached
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# Case: File exists, always use its value
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- name: Use version for product version
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block:
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- name: Read cached version from file
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command: "cat {{ atl_product_version_cache }}"
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register: atl_product_version_file
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changed_when: false
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- name: Set the local var to cached version
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set_fact:
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atl_cached_version: "{{ atl_product_version_file.stdout }}"
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when: cached.stat.exists
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- name: Determine if requested version is 'latest'
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set_fact:
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version_is_latest: "{{ atl_product_version is undefined or
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not atl_product_version or
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atl_product_version == 'latest' }}"
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# Case: File doesn't exist and no version has been set; find latest.
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- name: Fetch and cache latest version when no override
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block:
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- name: Fetch the latest edition version
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include_tasks: "{{ atl_product_edition }}_version_latest.yml"
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when: not cached.stat.exists and version_is_latest
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######################################################################
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# Version logic:
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#
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# At this point we have 3 values (possibly empty):
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#
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# * atl_product_version (supplied)
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# * atl_cached_version
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# * atl_latest_version
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#
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# If no cached value, use the supplied value or 'latest' if unset.
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#
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# If a cached file exists, and the requested version is 'latest' (or
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# unset), cache wins.
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#
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# If a version is set, then it is honoured _if_ it is higher than the
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# cached value (i.e. upgrade path).
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- name: "Case: Version is latest"
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block:
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- name: "Case: Cached version exists, has precedence over 'latest'"
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set_fact:
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atl_download_version: "{{ atl_cached_version }}"
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when: cached.stat.exists
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- name: "Case: No cached version, use latest"
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set_fact:
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atl_download_version: "{{ atl_latest_version }}"
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when: not cached.stat.exists
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when: version_is_latest
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- name: "Case: Version is not latest"
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block:
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- name: "Case: No cached version, or but supplied is higher; use supplied"
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set_fact:
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atl_download_version: "{{ atl_product_version }}"
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when: (not cached.stat.exists) or
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atl_product_version is version(atl_cached_version, '>')
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- name: "Case: Cached version is higher, ignore supplied"
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set_fact:
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atl_download_version: "{{ atl_cached_version }}"
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when: cached.stat.exists and
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atl_product_version is version(atl_cached_version, '<=')
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when: not version_is_latest
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- name: "Fallthrough guard: Use cached or supplied version if nothing set"
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set_fact:
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atl_download_version: "{{ atl_cached_version or atl_product_version }}"
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when: atl_download_version is not defined or
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atl_download_version|length == 0
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- name: Override the supplied version with the calculated one
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set_fact:
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atl_product_version: "{{ atl_download_version }}"
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######################################################################
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- name: Perform any additional per-edition version setup
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include_tasks: "{{ atl_product_edition }}_extra_tasks.yml"
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- name: Create installation directories
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file:
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path: "{{ item }}"
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state: directory
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mode: 0750
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owner: "{{ atl_product_user }}"
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group: "{{ atl_product_user }}"
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with_items:
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- "{{ atl_installer_temp }}"
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- "{{ atl_product_home }}"
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- "{{ atl_product_installation_versioned }}"
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- "{{ atl_product_version_cache_dir }}"
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- "{{ atl_product_home_shared_download_dir }}"
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changed_when: false # For Molecule idempotence check
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# At this point atl_product_version should be set, cache if necessary.
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- name: Write override cached version when specified
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template:
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src: version.j2
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dest: "{{ atl_product_version_cache }}"
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force: true
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# For the first run a temp binary should be downloaded but moved to
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# shared home to ensure all subsequent nodes have access
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# to the same specific version binary.
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# To prevent a race condition with multiple downloads at the same time
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# a directory is used as a lockfile (atomic operation) when moving binary.
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- name: Set assumptions to avoid race condition
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set_fact:
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download_binary: true
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move_binary: false
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atl_product_download: "{{ atl_product_temp_download }}"
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# Check for pre-downloaded binary on shared_home and completed lock dir.
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- name: Check for completed lock directory
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stat:
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path: "{{ atl_product_home_shared_completed_lock }}"
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register: completed_lock
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- name: Check for product installer in home_shared
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stat:
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path: "{{ atl_product_home_shared_download }}"
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register: home_shared_download
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# If binary exists and lockdir exists use this binary instead
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- name: Check lock directory and binary exists on shared_home
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set_fact:
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download_binary: false
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atl_product_download: "{{ atl_product_home_shared_download }}"
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when:
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- home_shared_download.stat.exists
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- completed_lock.stat.isdir is defined
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- completed_lock.stat.isdir
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# If the binary was never installed, download it to temp location
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- name: Installer not on home_shared. Fetch it.
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get_url:
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url: "{{ atl_product_download_url }}"
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dest: "{{ atl_product_temp_download }}"
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mode: 0755
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force: false
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register: atl_product_completed
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when: download_binary
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# If product installer was fetched make the moving directory
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- name: Create moving_lock.
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file:
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path: "{{ atl_product_home_shared_moving_lock }}"
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state: directory
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when:
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- atl_product_completed is succeeded
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register: moving_lock_created
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# Directory lock was created by this run
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# - Move binary
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- name: Move binary Scenario - lock created by this run
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debug:
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msg: lock created
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set_fact:
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move_binary: true
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when:
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- moving_lock_created is succeeded
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- moving_lock_created.changed == True
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# Directory lock was either already created or could not be
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# - Continue and install from temp
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- name: Continue Scenario - lock cannot be created or created by previous run
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debug:
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msg: lock not created
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when: moving_lock_created is not succeeded or
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( moving_lock_created is succeeded and moving_lock_created.changed == False )
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# # If product installer was pre-downloaded on shared_home, install from there
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# # This is determined by {{ atl_product_download }} variable
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# - name: Unpack the downloaded application depending on format
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# include_tasks: "unpack_{{ atl_download_format }}.yml"
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# - name: Symlink the installed version to current
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# file:
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# src: "{{ atl_product_installation_versioned }}"
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# dest: "{{ atl_product_installation_current }}"
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# state: link
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# force: true
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# # Temp product was downloaded and installed.
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# # If the following conditions are true, move to home_shared
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# # 1. This node just downloaded binary.
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# # 2. Another node is not already moving into place.
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# # 3. The binary is downloaded and lockdir in place.
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# - name: "Check move product installer"
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# block:
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# - name: Check again for moving lock directory
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# stat:
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# path: "{{ atl_product_home_shared_moving_lock }}"
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# register: moving_lock_2
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# - name: Check again for completed lock directory
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# stat:
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# path: "{{ atl_product_home_shared_completed_lock }}"
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# register: completed_lock_2
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# - name: Check again for product installer in home_shared
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# stat:
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# path: "{{ atl_product_home_shared_download }}"
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# register: home_shared_download_2
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# # If binary exists and lockdir exists use this binary instead
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# - name: Check lock directory and binary exists on shared_home
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# set_fact:
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# move_binary: true
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# when:
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# - ( home_shared_download.stat.exists == False or
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# completed_lock.stat.isdir is not defined or completed_lock.stat.isdir == False )
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# - ( moving_lock.stat.isdir is not defined or moving_lock.stat.isdir == False )
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# when: download_binary
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# - name: "Move product installer if required"
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# block:
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# - name: Create moving_lock to ensure other nodes skip
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# file:
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# path: "{{ atl_product_home_shared_moving_lock }}"
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# state: directory
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# when: move_binary
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# register: moving_lock_created
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# - name: Copy temp installer to home_shared
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# copy:
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# src: "{{ atl_product_temp_download }}"
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# dest: "{{ atl_product_home_shared_download }}"
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# remote_src: true
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# when: moving_lock_created is succeeded
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# register: copied
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# - name: Create completed_lock once product installer downloaded and copied
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# file:
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# path: "{{ atl_product_home_shared_completed_lock }}"
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# state: directory
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# when: copied is succeeded
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# register: completed_lock_created
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# - name: Remove moving_lock to show that binary is completed
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# file:
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# path: "{{ atl_product_home_shared_moving_lock }}"
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# state: absent
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# when:
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# - completed_lock_created is succeeded
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# - copied is succeeded
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# register: moving_lock_removed
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# - name: Delete old temp installer
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# file:
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# path: "{{ atl_product_temp_download }}"
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# state: absent
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# when: moving_lock_removed is succeeded
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# register: temp_deleted
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# when: move_binary
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