Add role for configuring sudoers groups

ansible/.gitignore

@@ -90,3 +90,5 @@ roles/*
 !roles/gateway/**
 !roles/alertmanager/
 !roles/alertmanager/**
+!roles/sudoers/
+!roles/sudoers/**

ansible/extras.yml

@@ -28,6 +28,15 @@
     - import_role:
         name: basic_users
 
+- hosts: sudoers:!builder
+  become: true
+  tags: sudoers
+  gather_facts: yes
+  tasks:
+    - name: Configure sudoers
+      import_role:
+        name: sudoers
+
 - name: Setup EESSI
   hosts: eessi
   tags: eessi

ansible/roles/sudoers/README.md

@@ -0,0 +1,65 @@
+# sudoers
+
+Manage sudoers configuration by creating files in `/etc/sudoers.d/`.
+
+## Role Variables
+
+  - `sudoers_groups`: Required list. A list of dictionaries defining sudo group configurations. Each dictionary should contain:
+  - `group`: Required string. The group name to grant sudo privileges to.
+  - `commands`: Required string. The sudo commands specification (e.g., "ALL=(ALL) ALL").
+  - `state`: Optional string. Either "present" (default) or "absent" to remove the configuration.
+
+## Features
+
+  - Creates individual sudoers files for each group in `/etc/sudoers.d/`
+  - Validates sudoers syntax using `visudo -cf` before applying
+  - Sanitizes group names by replacing spaces and slashes with underscores for filename safety
+  - Supports removing sudoers configurations by setting `state: absent`
+  - Sets proper permissions (0440) and ownership (root:root) on sudoers files
+
+## Dependencies
+
+None.
+
+## Example Playbook
+
+```yaml
+- hosts: servers
+  become: yes
+  roles:
+    - role: sudoers
+      vars:
+        sudoers_groups:
+          - group: SITE_Admins
+            commands: "ALL=(ALL) ALL"
+          - group: SITE_Users
+            commands: "ALL=(ALL) ALL"
+          - group: developers
+            commands: "ALL=(ALL) NOPASSWD: /usr/bin/systemctl restart myapp"
+          - group: old_group
+            state: absent
+```
+
+## Example Variables
+
+```yaml
+# Merge your existing groups like this:
+sudoers_groups: "{{ sudo_groups + management_sudo_groups }}"
+
+# Where you have:
+sudo_groups:
+  - group: SITE_Users
+    commands: "ALL=(ALL) ALL"
+
+management_sudo_groups:
+  - group: SITE_Admins
+    commands: "ALL=(ALL) ALL"
+```
+
+## License
+
+Apache v2
+
+## Author Information
+
+StackHPC Ltd.

ansible/roles/sudoers/defaults/main.yml

@@ -0,0 +1,20 @@
+---
+# Default variables for sudoers role
+
+# List of sudo groups to configure
+# Each item should have:
+#   - group: the group name (required)
+#   - commands: the sudo commands specification (required)
+#   - state: present (default) or absent (optional)
+sudoers_groups: []
+
+# Example:
+# sudoers_groups:
+#   - group: SITE_Admins
+#     commands: "ALL=(ALL) ALL"
+#   - group: SITE_Users
+#     commands: "ALL=(ALL) ALL"
+#   - group: developers
+#     commands: "ALL=(ALL) NOPASSWD: /usr/bin/systemctl restart myapp"
+#   - group: old_group
+#     state: absent

ansible/roles/sudoers/tasks/main.yml

@@ -0,0 +1,24 @@
+---
+- name: Configure sudoers files
+  template:
+    src: sudoers.j2
+    dest: /etc/sudoers.d/{{ item.group | replace(' ', '_') | replace('/', '_') }}
+    owner: root
+    group: root
+    mode: '0440'
+    validate: 'visudo -cf %s'
+  become: true
+  with_items: "{{ sudoers_groups }}"
+  when:
+    - sudoers_groups is defined
+    - sudoers_groups | length > 0
+
+- name: Remove sudoers files for absent groups
+  file:
+    path: /etc/sudoers.d/{{ item.group | replace(' ', '_') | replace('/', '_') }}
+    state: absent
+  become: true
+  with_items: "{{ sudoers_groups }}"
+  when:
+    - sudoers_groups is defined
+    - item.state | default('present') == 'absent'

ansible/roles/sudoers/templates/sudoers.j2

@@ -0,0 +1 @@
+%{{ item.group }}  {{ item.commands }}

environments/common/inventory/groups

@@ -182,3 +182,6 @@ extra_packages
 
 [gateway]
 # Add builder to this group to install gateway ansible-init playbook into image
+
+[sudoers]
+# Hosts to configure sudoers groups

environments/common/layouts/everything

@@ -125,3 +125,6 @@ builder
 [gateway:children]
 # Add builder to this group to install gateway ansible-init playbook into image
 builder
+
+[sudoers]
+# Hosts to configure sudoers groups