Remove references to unsupported operating systems

All references to Gentoo, SUSE, Debian stretch and Centos-7  are removed.
Conditional tasks, ternary operators and variables are simplified where possible
OS specific variables files are generalised where possible
Change-Id: Id3136a5eed068e317aa1a7b33a1149629dc76d77

README.md

@@ -7,13 +7,10 @@ The ansible-hardening role applies security hardening configurations
 from the [Security Technical Implementation Guide (STIG)](http://iase.disa.mil/stigs/Pages/index.aspx)
 to systems running the following distributions:
 
-* CentOS 7
+* CentOS 8
-* Debian Jessie
+* Debian Buster
-* Fedora 27
+* Ubuntu Bionic
-* openSUSE Leap 42.2 and 42.3
+* Ubuntu Focal
-* Red Hat Enterprise Linux 7
-* SUSE Linux Enterprise 12 (*experimental*)
-* Ubuntu 16.04
 
 For more details, review the
 [ansible-hardening documentation](http://docs.openstack.org/developer/ansible-hardening/).

defaults/main.yml

@@ -17,12 +17,11 @@
 # The RHEL 7 STIG content first appeared in the Ocata release and is compatible
 # with the following operating systems:
 #
-#  * CentOS 7
+#  * CentOS 8
-#  * Debian Jessie
+#  * Debian Buster
 #  * Fedora 27
-#  * openSUSE Leap 42.x
+#  * Ubuntu Bionic
-#  * SUSE Linux Enterprise 12
+#  * Ubuntu Focal
-#  * Ubuntu 16.04 Xenial LTS
 #
 # Valid options: rhel7
 stig_version: rhel7

meta/main.yml

@@ -8,27 +8,14 @@ galaxy_info:
   platforms:
   - name: Debian
     versions:
-      - jessie
       - buster
-  - name: Fedora
-    versions:
-      - 25
   - name: EL
     versions:
-      - 7
       - 8
   - name: Ubuntu
     versions:
-      - trusty
-      - xenial
       - bionic
       - focal
-  - name: opensuse
-    versions:
-      - 42.1
-      - 42.2
-      - 42.3
-      - 15.0
   categories:
   - cloud
   - security

tasks/rhel7stig/accounts.yml

@@ -145,7 +145,7 @@
     state: present
   when:
     - item.value is truthy(convert_bool=True)
-    - item.ansible_os_family == 'all' or item.ansible_os_family == ansible_facts['os_family']
+    - item.os_family == 'all' or item.os_family == ansible_facts['os_family']
   with_items: "{{ shadow_utils_rhel7 }}"
   tags:
     - accounts

tasks/rhel7stig/aide.yml

@@ -116,7 +116,7 @@
   changed_when: false
   when:
     - aide_init is not skipped
-    - ansible_facts['pkg_mgr'] in ['yum', 'zypper']
+    - ansible_facts['pkg_mgr'] == 'dnf'
   tags:
     - medium
     - aide
@@ -133,7 +133,7 @@
     special_time: daily
     job: "/sbin/aide --check | /bin/mail -s \"$HOSTNAME - Daily aide integrity check run\" root"
   when:
-    - ansible_facts['pkg_mgr'] in ['yum', 'zypper']
+    - ansible_facts['pkg_mgr'] == 'dnf'
   tags:
     - medium
     - aide

tasks/rhel7stig/auth.yml

@@ -90,7 +90,7 @@
     insertbefore: EOF
     block: "{{ lookup('template', 'pam_faillock.j2') }}"
   when:
-    - ansible_facts['pkg_mgr'] in ['yum', 'zypper']
+    - ansible_facts['pkg_mgr'] == 'dnf'
     - security_pam_faillock_enable | bool
   tags:
     - auth

tasks/rhel7stig/file_perms.yml

@@ -21,7 +21,7 @@
   changed_when: False
   when:
     - not check_mode | bool
-    - ansible_facts['pkg_mgr'] in ['yum', 'zypper']
+    - ansible_facts['pkg_mgr'] == 'dnf'
     - security_reset_perm_ownership | bool
   tags:
     - file_perms
@@ -38,7 +38,7 @@
     - "{{ rpmverify_package_list.stdout_lines | default([]) }}"
   when:
     - not check_mode | bool
-    - ansible_facts['pkg_mgr'] in ['yum', 'zypper']
+    - ansible_facts['pkg_mgr'] == 'dnf'
     - rpmverify_package_list is defined
     - rpmverify_package_list.stdout_lines | length > 0
   async: 300

tasks/rhel7stig/kernel.yml

@@ -79,7 +79,7 @@
   failed_when: False
   check_mode: no
   when:
-    - ansible_facts['pkg_mgr'] in ['yum', 'zypper']
+    - ansible_facts['pkg_mgr'] == 'dnf'
   tags:
     - always
 
@@ -89,7 +89,7 @@
       FIPS is not enabled at boot time on this server.
       The STIG requires FIPS to be enabled at boot time.
   when:
-    - ansible_facts['pkg_mgr'] in ['yum', 'zypper']
+    - ansible_facts['pkg_mgr'] == 'dnf'
     - fips_check is defined
     - fips_check.stdout != '1'
   tags:

tasks/rhel7stig/main.yml

@@ -59,7 +59,7 @@
     name: "{{ security_epel_release_package }}"
     state: "{{ security_package_state }}"
   when:
-    - ansible_facts['pkg_mgr'] == 'yum'
+    - ansible_facts['pkg_mgr'] == 'dnf'
     - security_epel_install_repository | bool
     - security_enable_virus_scanner | bool
   tags:

vars/main.yml

@@ -287,27 +287,27 @@ shadow_utils_rhel7:
   - parameter: ENCRYPT_METHOD
     value: "{{ security_password_encrypt_method | default('') }}"
     stig_id: V-71921
-    ansible_os_family: all
+    os_family: all
   - parameter: PASS_MIN_DAYS
     value: "{{ security_password_min_lifetime_days | default('') }}"
     stig_id: V-71925
-    ansible_os_family: all
+    os_family: all
   - parameter: PASS_MAX_DAYS
     value: "{{ security_password_max_lifetime_days | default('') }}"
     stig_id: V-71929
-    ansible_os_family: all
+    os_family: all
   - parameter: FAIL_DELAY
     value: "{{ security_shadow_utils_fail_delay | default('') }}"
     stig_id: V-71951
-    ansible_os_family: RedHat
+    os_family: RedHat
   - parameter: UMASK
     value: "{{ security_shadow_utils_umask | default('') }}"
     stig_id: V-71995
-    ansible_os_family: all
+    os_family: all
   - parameter: CREATE_HOME
     value: "{{ security_shadow_utils_create_home | default('') }}"
     stig_id: V-72013
-    ansible_os_family: all
+    os_family: all
 
 ## sysctl settings
 # This variable is used in main/rhel7stig/kernel.yml to set sysctl

vars/redhat-8.yml

@@ -32,7 +32,7 @@ aide_database_out_file: /var/lib/aide/aide.db.new.gz
 chrony_conf_file: /etc/chrony.conf
 chrony_key_file: /etc/chrony.keys
 daemon_init_params_file: /etc/init.d/functions
-pkg_mgr_config: "{{ (ansible_facts['pkg_mgr'] == 'yum') | ternary('/etc/yum.conf', '/etc/dnf/dnf.conf') }}"
+pkg_mgr_config: /etc/dnf/dnf.conf
 
 # Service names
 cron_service: crond
@@ -90,7 +90,7 @@ stig_packages_rhel7:
     state: "{{ security_package_state }}"
     enabled: "{{ security_enable_firewalld }}"
   - packages:
-      - "{{ (ansible_facts['pkg_mgr'] == 'yum') | ternary('yum-cron', 'dnf-automatic') }}"
+      - dnf-automatic
     state: "{{ security_package_state }}"
     enabled: "{{ security_rhel7_automatic_package_updates }}"
   - packages: