Include SELinux tasks for zabbix_web and refactor selinux variable na…

…mes (ansible-collections#1220)

* Include missing SELinux tasks from selinux.yml and refactor selinux variable names.

Selinux tasks were not included by zabbix_web role,
seems that include had been dropped by accident (?) on pull request ansible-collections#979 (v2.0.0)

Restored `include_tasks: selinux.yml` to roles/zabbix_web/tasks/RedHat.yml

Refactor `zabbix_selinux` variable to `zabbix_web_selinux` as variable names should be prefixed with role name,
also to use similar pattern with `zabbix_proxy_selinux` and `zabbix_server_selinux` variables.

Refactor `selinux_allow_*` variable names to correlate with selinux boolean names.

Refactor `zabbix_apache_can_connect_ldap` to `selinux_allow_httpd_can_connect_ldap` as it's not apache specific
and not correlating with actual seboolean name.

---------

Co-authored-by: Miikka Joutsenvirta <miikka@joutsenvirta.fi>

changelogs/fragments/1220-refactor_selinux_tasks_and_variable_names_role_zabbix_web.yml

@@ -0,0 +1,4 @@
+bugfixes: 
+  - zabbix_web role, Add missing selinux.yml tasks.
+minor_changes:
+  - zabbix_web role, Refactored zabbix_selinux variable names to correlate with selinux boolean names.

docs/ZABBIX_WEB_ROLE.md

@@ -16,6 +16,7 @@
       - [Apache configuration](#apache-configuration)
       - [Nginx configuration](#nginx-configuration)
       - [PHP-FPM](#php-fpm)
+    - [SElinux](#selinux)
     - [Zabbix Server](#zabbix-server)
   * [proxy](#proxy)
 - [Example Playbook](#example-playbook)
@@ -120,7 +121,6 @@ The following is an overview of all available configuration defaults for this ro
 * `zabbix_web_vhost_port`: The port on which Zabbix HTTP vhost is running.
 * `zabbix_web_vhost_tls_port`: The port on which Zabbix HTTPS vhost is running.
 * `zabbix_web_vhost_listen_ip`: On which interface the Apache Virtual Host is available.
-* `zabbix_apache_can_connect_ldap`: Default: `false`. Set SELinux boolean to allow httpd to connect to LDAP.
 * `zabbix_web_max_execution_time`: PHP max execution time
 * `zabbix_web_memory_limit`: PHP memory limit
 * `zabbix_web_post_max_size`: PHP maximum post size
@@ -155,6 +155,13 @@ The following properties are specific to Zabbix 5.0 and for the PHP(-FPM) config
 
 * `zabbix_php_fpm_conf_group`: The group of the owner of the socket file (When `zabbix_php_fpm_listen` contains a patch to a socket file).
 
+### SElinux
+
+* `zabbix_web_selinux`: Default: `False`. Enables an SELinux policy so that the web will run.
+* `selinux_allow_httpd_can_connect_zabbix`: Default: `false`. Set SELinux boolean to allow httpd to connect to zabbix.
+* `selinux_allow_httpd_can_connect_ldap`: Default: `false`. Set SELinux boolean to allow httpd to connect to LDAP.
+* `selinux_allow_httpd_can_network_connect_db`: Default: `false` Set SELinux boolean to allow httpd to connect databases over the network.
+
 ### Zabbix Server
 
 * `zabbix_server_name`: The name of the Zabbix Server.

roles/zabbix_web/defaults/main.yml

@@ -87,12 +87,14 @@ zabbix_server_history_types:
   - "uint"
   - "dbl"
 
-zabbix_selinux: false
+# SELinux specific
+zabbix_web_selinux: false
+selinux_allow_httpd_can_connect_ldap: false
+selinux_allow_httpd_can_network_connect_db: false
+selinux_allow_httpd_can_connect_zabbix: false
 
 zabbix_repo_deb_gpg_key_url: http://repo.zabbix.com/zabbix-official-repo.key
 zabbix_repo_deb_include_deb_src: true
-# selinux_allow_zabbix_can_network: false
-# zabbix_apache_can_connect_ldap: false
 
 # SAML certificates
 # zabbix_saml_idp_crt:

roles/zabbix_web/tasks/RedHat.yml

@@ -57,3 +57,8 @@
     - ansible_distribution_major_version == '9'
   tags:
     - install
+
+- name: "Configure SELinux when enabled"
+  ansible.builtin.include_tasks: selinux.yml
+  when:
+    - zabbix_web_selinux | bool

roles/zabbix_web/tasks/selinux.yml

@@ -12,7 +12,7 @@
   become: true
   when:
     - ansible_os_family == "RedHat"
-    - selinux_allow_zabbix_can_network
+    - ansible_selinux.status == "enabled"
     - ansible_distribution_major_version == "7" or ansible_distribution_major_version == "6"
   tags:
     - install
@@ -30,23 +30,11 @@
   become: true
   when:
     - ansible_os_family == "RedHat"
-    - selinux_allow_zabbix_can_network
+    - ansible_selinux.status == "enabled"
     - ansible_distribution_major_version|int >= 8
   tags:
     - install
 
-- name: "SELinux | RedHat | Enable zabbix_can_network SELinux boolean"
-  ansible.posix.seboolean:
-    name: zabbix_can_network
-    state: true
-    persistent: true
-  become: true
-  when:
-    - ansible_os_family == "RedHat"
-    - selinux_allow_zabbix_can_network
-  tags:
-    - config
-
 - name: "SELinux | Allow httpd to connect to db (SELinux)"
   ansible.posix.seboolean:
     name: httpd_can_network_connect_db
@@ -55,7 +43,7 @@
   become: true
   when:
     - ansible_selinux.status == "enabled"
-    - selinux_allow_zabbix_can_network
+    - selinux_allow_httpd_can_network_connect_db | bool
   tags:
     - config
 
@@ -67,7 +55,7 @@
   become: true
   when:
     - ansible_selinux.status == "enabled"
-    - selinux_allow_zabbix_can_network
+    - selinux_allow_httpd_can_connect_zabbix | bool
   tags:
     - config
 
@@ -79,6 +67,6 @@
   become: true
   when:
     - ansible_selinux.status == "enabled"
-    - zabbix_apache_can_connect_ldap | bool
+    - selinux_allow_httpd_can_connect_ldap | bool
   tags:
     - config