67 lines
1.2 KiB
Markdown
67 lines
1.2 KiB
Markdown
# Ansible
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## List all tags
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```shell
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ansible-playbook -i host.targets -v site.yml --list-tags
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```
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## Start at a specific task (life savior)
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```shell
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ansible-playbook -i host.targets -v site.yml --start-at-task "The audacious task"
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```
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## List hosts
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```shell
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ansible-playbook -i host.targets -v site.yml --list-hosts
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```
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## Limit hosts
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```shell
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ansible-playbook -i host.targets -v site.yml --limit hostname
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```
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## Jinja2, templates & carriage return
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To tell Jinja2 to not mess with carriage return in templates add
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```jinja
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#jinja2: trim_blocks:False
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---
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```
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at the top of the template file
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## Import vs include (kudos @href)
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If you want to exec a sets of tasks when a condition is true, use
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import_tasks.
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```yaml
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- name: Include init tasks
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import_tasks: init.yml
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tags:
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- init
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when: proof.stat.exists == False
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```
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`ìnclude_tasks` will add all tasks to play run, even if the when condition is
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false.
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## Exec task(s) if a specific service is found
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```yaml
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- name: Is Docker running ?
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service_facts:
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- name: Push Telegraf docker input config if needed
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template:
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src: inputs/input.docker.conf.j2
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dest: /etc/telegraf/telegraf.d/input.docker.conf
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notify: reload telegraf
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when: "'docker' in services"
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```
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