Initial AlmaLinux support (#7538)

* AlmaLinux: ansible>2.9.19 is needed to know about AlmaLinux

* AlmaLinux: identify as a centos derrivative

* AlmaLinux: add AlmaLinux to checks for CentOS

* Use ansible_os_family to compare family and not distribution

roles/container-engine/docker/tasks/main.yml

@@ -82,11 +82,14 @@
     dest: "{{ yum_repo_dir }}/docker.repo"
   when: ansible_distribution == "Fedora" and not is_ostree
 
-- name: Configure docker repository on RedHat/CentOS/Oracle Linux
+- name: Configure docker repository on RedHat/CentOS/Oracle/AlmaLinux Linux
   template:
     src: "rh_docker.repo.j2"
     dest: "{{ yum_repo_dir }}/docker-ce.repo"
-  when: ansible_distribution in ["CentOS","RedHat","OracleLinux"] and not is_ostree
+  when:
+    - ansible_os_family == "RedHat"
+    - ansible_distribution != "Fedora"
+    - not is_ostree
 
 - name: Remove dpkg hold
   dpkg_selections:

roles/container-engine/docker/tasks/pre-upgrade.yml

@@ -4,7 +4,7 @@
     path: "{{ yum_repo_dir }}/docker.repo"
     state: absent
   when:
-    - ansible_distribution in ["CentOS","RedHat","OracleLinux"]
+    - ansible_os_family == 'RedHat'
     - not is_ostree
 
 - name: Ensure old versions of Docker are not installed. | Debian