100 lines
3.9 KiB
YAML
100 lines
3.9 KiB
YAML
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---
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- name: Deploy impress from the current local version
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hosts: webserver
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become: yes
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become_user: impress
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vars:
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local_app_root: "{{ playbook_dir }}/.."
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remote_project_root: "/srv/impress"
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# deploy:setup should have added us to the "impress-deployers" group, so we
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# should be able to become the "impress" user without a password.
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ansible_become_password: ""
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tasks:
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- name: Generate a version name from the current timestamp
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command: date '+%Y-%m-%d-%s'
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register: new_app_version
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- name: Print out the new version name
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debug:
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msg: "Deploying new version: {{ new_app_version.stdout }}"
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- name: Save new remote folder path to a variable
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set_fact:
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remote_app_root: "{{ remote_project_root }}/versions/{{ new_app_version.stdout }}"
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- name: Create new remote folder for the new version
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file:
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path: "{{ remote_app_root }}"
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state: directory
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- name: Copy local app's source files to new remote folder
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ansible.posix.synchronize:
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src: "{{ local_app_root }}/"
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dest: "{{ remote_app_root }}"
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rsync_opts:
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- "--exclude=.git"
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- "--filter=':- .gitignore'"
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- name: Configure Bundler to run in deployment mode
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command:
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chdir: "{{ remote_app_root }}"
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cmd: /opt/ruby-3.1.4/bin/bundle config set --local deployment true
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# This ensures that, while attempting our current deploy, we don't
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# accidentally delete gems out from under the currently-running version.
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# NOTE: From reading the docs, I thiink this is the default behavior, but
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# I can't be sure? Rather than deep-dive to find out, I'd rather just set
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# it, to be clear about the default(?) behavior we're depending on.
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- name: Configure Bundler to *not* clean up old gems when installing
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command:
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chdir: "{{ remote_app_root }}"
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cmd: /opt/ruby-3.1.4/bin/bundle config set --local clean false
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# NOTE: Bundler recommends this, and they're pretty smart about it: if the
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# Gemfile changes, this shouldn't disrupt the currently-running version,
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# because we won't clean up its now-unused gems yet, and if we upgrade a
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# gem it'll install *both* versions of the gem until we clean up.
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- name: Configure Bundler to use the bundle folder shared by all app versions
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command:
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chdir: "{{ remote_app_root }}"
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cmd: "/opt/ruby-3.1.4/bin/bundle config set --local path {{ remote_project_root}}/shared/bundle"
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- name: Run `bundle install` to install dependencies in remote folder
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command:
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chdir: "{{ remote_app_root }}"
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cmd: /opt/ruby-3.1.4/bin/bundle install
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- name: Update the `current` folder to point to the new version
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file:
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src: "{{ remote_app_root }}"
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dest: /srv/impress/current
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state: link
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# NOTE: This uses the passwordless sudo rule we set up in deploy:setup.
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# We write it as a command rather than using the built-in `systemd` Ansible
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# module, to make sure we're invoking it exactly as we wrote in that rule.
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# TODO: I'm not sure why it works to write `sudo` in the command instead of
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# `become_user: root`, which complains about the missing sudo password, which
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# we already fixed for the rest of the playbook I thought?
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- name: Restart the app
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become: no
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command: sudo systemctl restart impress
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- name: Clean up gems no longer used in the current app version
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command:
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chdir: "{{ remote_app_root }}"
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cmd: /opt/ruby-3.1.4/bin/bundle clean
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- name: Find older app versions to clean up
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# Print out all but the 5 last-recently-updated versions.
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command:
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chdir: "{{ remote_project_root }}/versions"
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cmd: bash -c 'ls -t | tail -n +6'
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register: versions_to_clean_up
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- name: Clean up older versions
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file:
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path: "{{ remote_project_root }}/versions/{{ item }}"
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state: absent
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with_items: "{{ versions_to_clean_up.stdout_lines }}"
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