From 2fe34b6444502079dc0b84365ce82dbc92de308e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 13 Apr 2024 14:06:49 +0200 Subject: Adding upstream version 6.17.2. Signed-off-by: Daniel Baumann --- src/ansiblelint/rules/no_jinja_when.md | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 src/ansiblelint/rules/no_jinja_when.md (limited to 'src/ansiblelint/rules/no_jinja_when.md') diff --git a/src/ansiblelint/rules/no_jinja_when.md b/src/ansiblelint/rules/no_jinja_when.md new file mode 100644 index 0000000..702e807 --- /dev/null +++ b/src/ansiblelint/rules/no_jinja_when.md @@ -0,0 +1,32 @@ +# no-jinja-when + +This rule checks conditional statements for Jinja expressions in curly brackets `{{ }}`. +Ansible processes conditionals statements that use the `when`, `failed_when`, and `changed_when` clauses as Jinja expressions. + +An Ansible rule is to always use `{{ }}` except with `when` keys. +Using `{{ }}` in conditionals creates a nested expression, which is an Ansible +anti-pattern and does not produce expected results. + +## Problematic Code + +```yaml +--- +- name: Example playbook + hosts: localhost + tasks: + - name: Shut down Debian systems + ansible.builtin.command: /sbin/shutdown -t now + when: "{{ ansible_facts['os_family'] == 'Debian' }}" # <- Nests a Jinja expression in a conditional statement. +``` + +## Correct Code + +```yaml +--- +- name: Example playbook + hosts: localhost + tasks: + - name: Shut down Debian systems + ansible.builtin.command: /sbin/shutdown -t now + when: ansible_facts['os_family'] == "Debian" # <- Uses facts in a conditional statement. +``` -- cgit v1.2.3