211 lines
6.9 KiB
YAML
211 lines
6.9 KiB
YAML
---
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# Copyright 2018, Rackspace US, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# TODO(odyssey4me):
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# 1. Cater for Logan's model where we must just extract
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# over the existing folder without wiping it out first.
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# 2. Also, wiping the directory out from under it probably
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# wrecks the service while it's running. We should figure
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# out a better way of atomically replacing the venv without
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# ripping the folder out from under it.
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- name: Install distro packages
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package:
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name: "{{ distro_package_list }}"
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state: "{{ distro_package_state }}"
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update_cache: "{{ (ansible_pkg_mgr in ['apt', 'zypper']) | ternary('yes', omit) }}"
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cache_valid_time: "{{ (ansible_pkg_mgr == 'apt') | ternary(distro_cache_valid_time, omit) }}"
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register: _install_distro_packages
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until: _install_distro_packages | success
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retries: 5
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delay: 2
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- name: Install required pip packages on the host
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pip:
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name: "{{ host_pip_packages }}"
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state: latest
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extra_args: >-
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{{ pip_install_constraints }}
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{{ pip_install_options }}
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register: _install_host_pip_packages
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until: _install_host_pip_packages | success
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retries: 5
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delay: 2
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- name: Ensure that venv_download_path exists on the deployment host
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file:
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path: "{{ venv_download_path }}/{{ venv_destination_path | dirname }}"
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state: directory
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delegate_to: localhost
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run_once: yes
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- name: Check if venv is present on the deployment host
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stat:
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path: "{{ venv_download_path }}/{{ venv_destination_path }}.tgz"
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get_attributes: no
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get_checksum: no
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get_md5: no
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get_mime: no
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register: _venv_tgz
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delegate_to: localhost
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run_once: yes
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- name: Copy the venv checksum file to the target host
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copy:
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src: "{{ venv_download_path }}/{{ venv_destination_path }}.checksum"
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dest: "{{ venv_destination_path | dirname }}"
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register: _venv_checksum_copy
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when:
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- _venv_tgz.stat.exists | bool
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# TODO(odyssey4me):
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# 1. Cater for Logan's model where we must just extract
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# over the existing folder without wiping it out first.
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# 2. Also, removing it like this probably wrecks the service
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# while it's running. We should figure out a better way
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# of atomically replacing the venv without ripping the
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# folder out from under it.
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# Due to our Ansible strategy, a skipped task does not have
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# a dictionary result. As such we validate that the register
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# is a mapping (dict).
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- name: Remove existing venv on target host if it is changing
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file:
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path: "{{ venv_destination_path }}"
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state: absent
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when:
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- _venv_checksum_copy is mapping
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- _venv_checksum_copy | changed
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- name: Create venv directory on the target host
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file:
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path: "{{ venv_destination_path }}"
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state: directory
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register: _create_venv_dir
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# Due to our Ansible strategy, a skipped task does not have
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# a dictionary result. As such we validate that the register
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# is a mapping (dict).
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- name: Unarchive pre-built venv
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unarchive:
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src: "{{ venv_download_path }}/{{ venv_destination_path }}.tgz"
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dest: "{{ venv_destination_path }}"
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remote_src: no
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when:
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- _venv_checksum_copy is mapping
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- _venv_checksum_copy | changed
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notify:
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- Manage LB
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- Restart services
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#TODO(odyssey4me):
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# Split the venv build into multiple parts:
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# 1. Create the venv without pip, setuptools, wheel
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# 2. Use get-pip.py to install the right versions
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# of pip, setuptools, wheel into the venv
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# 3. Install the packages into the venv
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- name: Build venv
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pip:
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name: "{{ venv_pip_packages }}"
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state: latest
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virtualenv: "{{ venv_destination_path }}"
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virtualenv_site_packages: "no"
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extra_args: >-
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{{ pip_install_venv_constraints }}
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{{ pip_install_constraints }}
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{{ pip_install_options }}
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register: _install_venv_pip_packages
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until: _install_venv_pip_packages | success
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retries: 5
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delay: 2
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when:
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- not _venv_tgz.stat.exists | bool
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notify:
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- Manage LB
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- Restart services
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# Due to our Ansible strategy, a skipped task does not have
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# a dictionary result. As such we validate that the register
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# is a mapping (dict).
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- name: Update virtualenv python and paths
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shell: |
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sed -si '1s/^.*python.*$/#!{{ (venv_destination_path ~ '/bin') | replace ('/','\/') }}\/python/' {{ venv_destination_path }}/bin/*
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virtualenv {{ venv_destination_path }}
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when:
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- _venv_checksum_copy is mapping
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- _venv_checksum_copy | changed
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tags:
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- skip_ansible_lint
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# Due to our Ansible strategy, a skipped task does not have
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# a dictionary result. As such we validate that the register
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# is a mapping (dict).
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- name: Clean up the virtualenv before packaging
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shell: |
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find {{ venv_destination_path }}/bin -type f -name '*.pyc' -delete
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when:
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- _install_venv_pip_packages is mapping
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- _install_venv_pip_packages | changed
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# Note(odyssey4me):
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# We purposefully use shel instead of the archive module
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# here. The archive module's output is far too verbose to
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# be practical when debugging.
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#
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# Due to our Ansible strategy, a skipped task does not have
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# a dictionary result. As such we validate that the register
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# is a mapping (dict).
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- name: Package venv
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shell: |
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tar czf '{{ venv_destination_path }}.tgz' -C '{{ venv_destination_path }}' .
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args:
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chdir: "{{ venv_destination_path }}"
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executable: /bin/bash
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warn: no
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register: _venv_package_build
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when:
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- _install_venv_pip_packages is mapping
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- _install_venv_pip_packages | changed
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# Due to our Ansible strategy, a skipped task does not have
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# a dictionary result. As such we validate that the register
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# is a mapping (dict).
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- name: Prepare checksum for packaged venv
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shell: |
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sha1sum '{{ venv_destination_path }}.tgz' | awk '{print $1}' > '{{ venv_destination_path }}.checksum'
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args:
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executable: /bin/bash
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when:
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- _venv_package_build is mapping
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- _venv_package_build | changed
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# Due to our Ansible strategy, a skipped task does not have
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# a dictionary result. As such we validate that the register
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# is a mapping (dict).
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- name: Copy the packaged venv and checksum file to the deployment host
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fetch:
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src: "{{ item.src }}"
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dest: "{{ item.dest }}"
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flat: yes
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with_items:
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- src: "{{ venv_destination_path }}.tgz"
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dest: "{{ venv_download_path }}/{{ venv_destination_path }}.tgz"
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- src: "{{ venv_destination_path }}.checksum"
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dest: "{{ venv_download_path }}/{{ venv_destination_path }}.checksum"
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when:
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- _venv_package_build is mapping
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- _venv_package_build | changed
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