Ansible-lint

FAQ

Don't compare to empty string

• Use `when: var | length > 0` instead of `when: var != ""`.
• Use `when: var | length == 0` instead of `when: var == ""`.

Don't compare to literal True/False

Instead of

when: (foo == 1 and bar == 0) == false

use

when: not (foo == 1 and bar == 0) 

Commands should not change things if nothing needs doing

Sometimes fixed by adding

changed_when: false

Lines should be no longer than 160 chars

ignore for now?

Shells that use pipes should set the pipefail option

shell: set -o pipefail &&  ...