Ansible - Loop

About

loop in Ansible are done with look up plugin ^{1) 2)} that returns variables for each selectionned item that you can use in your template.

Management

Nested

loop in Ansible are never nested but you can combine list

- name: give users access to multiple databases
  mysql_user:
    name: "{{ item[0] }}"
    priv: "{{ item[1] }}.*:ALL"
    append_privs: yes
    password: "foo"
  loop: "{{ ['alice', 'bob'] |product(['clientdb', 'employeedb', 'providerdb'])|list }}"

With Items

- name: Install mapr-core
  vars:
    packages_Suse: ['mapr-compat-suse', 'mapr-core', 'mapr-core-internal']
    packages_RedHat: ['mapr-core', 'mapr-core-internal']
    packages_Debian: ['mapr-core', 'mapr-core-internal']
  package: name={{ item }} state=present
  with_items: "{{ vars['packages_' + ansible_os_family] }}"
  register: core_result

Include Loop

- name: Issuer
  tags: cert-manager-issuer
  loop: "{{ cert_manager_issuers }}"
  loop_control:
    loop_var: cert_manager_issuer # the name of the variable in the include task file
  ansible.builtin.include_tasks:
    file: cert-manager-issuer-cloudflare-solver.yml
    apply:
      tags: cert-manager-issuer

For Files

See the file system page loop section where you can find the with_fileglob and with_filetree lookup.