Adding DHCP config task (incomplete)

Author: falcocer-ibm

roles/maas/defaults/main.yaml

@@ -5,3 +5,20 @@ maas_db_name: "maasdb"
 maas_db_user: "maas"
 maas_version: "3.5"
 maas_snap_channel: "stable"
+
+# MAAS DHCP variables
+dhcp_subnets:
+  front:
+    subnet: 10.0.8.0/24
+    classes:
+      virtual: "match if substring(hardware, 0, 4) = 01:52:54:00"
+      lxc: "match if substring(hardware, 0, 4) = 01:52:54:ff"
+    pools:
+      virtual:
+        range: 172.21.10.20 172.21.10.250
+      unknown_clients:
+        range:
+          - 172.21.11.0 172.21.11.19
+          - 172.21.13.170 172.21.13.250
+      lxc:
+        range: 172.21.14.1 172.21.14.200

roles/maas/tasks/add_machines.yml

@@ -2,23 +2,15 @@
 - name: Add all machines from inventory to MAAS
   vars:  
     arch: "amd64"  # Change if needed
-  when: inventory_hostname in groups['maas_region_rack_server'] and maas_installed.failed == false
+  when: inventory_hostname in groups['maas_region_rack_server'] and maas_installed.failed == false and logged_into_maas.rc == 0
   block:
-    - name: Get a list of all hosts from the inventory
+    - name: Get a list of testnodes from the inventory
       set_fact:
-        host_list: "{{ groups['testnodes'] }}"
-      register: nodes_listed
-
-    - name: Get API key file
-      command: maas apikey --username={{ maas_admin_username }}
-      register: maas_api_key
-    
-    - name: Logging into MAAS API
-      command: "maas login {{ maas_admin_username }} http://{{ hostvars[groups['maas_region_rack_server'].0]['ip'] }}:5240/MAAS/api/2.0/ {{ maas_api_key.stdout }}"
-      register: logged_into_maas
+        testnodes_list: "{{ groups['testnodes'] }}"
+      register: testnodes_listed
 
     - name: Add machines to MAAS
       command: "maas {{ maas_admin_username }} machines create deployed=true hostname={{ item }} architecture={{ arch }} mac_addresses={{ hostvars[item]['mac'] }} power_type=manual"
-      with_items: "{{ host_list }}"
+      with_items: "{{ testnodes_list }}"
       ignore_errors: true
-      when: hostvars[item]['mac'] is defined and logged_into_maas.rc == 0 and nodes_listed.changed == true
+      when: hostvars[item]['mac'] is defined and testnodes_listed.changed == true

roles/maas/tasks/config_dhcpd.yml

@@ -0,0 +1,59 @@
+---
+- name: Configure MAAS DHCP Service
+  when: inventory_hostname in groups['maas_region_rack_server'] and maas_installed.failed == false and logged_into_maas.rc == 0
+  block:
+    - name: Get a list of all hosts from the inventory
+      set_fact:
+        all_list: "{{ groups['all'] }}"
+      register: all_nodes_listed
+    
+    - name: Debugging subnet variable
+      debug:
+        var: "{{ item }}"
+
+    - name: Creating IP Range
+      command: "maas admin ipranges create type={{ subnet.ip_range_type }} start_ip={{ subnet.start_ip }} end_ip={{ subnet.end_ip }}"
+      ignore_errors: true
+
+    - name: Selecting the correct fabric to configure
+      command: maas admin subnet read {{ subnet.subnet }}|grep 'fabric-'|cut -d '"' -f 4
+      register: fabric_selected
+
+    - name: Getting subnet ID
+      command: maas admin subnet read {{ subnet.subnet }}|grep '"id"'|cut -d ':' -f 2|cut -d ',' -f 1|head -1
+      register: subnet_id
+
+    - name: Enabling DHCP with HA on the selected subnet
+      command: "maas admin vlan update {{ fabric_selected.stdout }} 0 dhcp_on=True primary_rack={{ hostvars[groups['maas_region_rack_server'].0] }} secondary_rack={{ hostvars[groups['maas_rack_server'].0] }}"
+
+    - name: Creating temporary snippets directory
+      file:
+        path: /tmp/snippets
+        state: directory
+        mode: '0755'
+      register: snippets_directory
+
+    - name: Copying each subnet classes snippet
+      template:
+        src: dhcpd.classes.conf.j2
+        dest: "/tmp/snippets/{{ subnet }}_classes_snippet"
+      when: subnet.classes is defined and snippets_directory.failed == false
+      register: dhcp_classes_config
+
+#    - name: Creating DHCP snippets for the classes
+#      command: maas admin dhcpsnippets create name=class_{{ item.key }} value="class ""{{ item.key }}"" {
+#    "{{ item.value }}";
+#  }" description='DHCP config for class "{{ item.key }}"" subnet="{{ subnet_id.stdout }}"'
+#      ignore_errors: true
+#      loop: "{{ subnet.classes | dict2items }}"
+
+      #    - name: Creating DHCP snippets for the pools
+
+#    - name: Creating DHCP snippets for all hosts
+#      command: "maas admin dhcpsnippets create name="{{ item }}" value="host {{ item }} {
+#    hardware ethernet {{ hostvars[item]['mac'] }};
+#    fixed-address {{ hostvars[item]['ip'] }};
+#  }" description="DHCP config for host {{ item }}" subnet="{{ subnet_id.stdout }}""
+#      with_items: "{{ all_list }}"
+#      ignore_errors: true
+#      when: hostvars[item]['mac'] is defined

roles/maas/tasks/install_maas_region.yml renamed to roles/maas/tasks/initialize_region_rack.yml

@@ -1,12 +1,4 @@
 ---
-- name: Install MAAS with Snap
-  snap:
-    name: maas
-    classic: yes
-    channel: "{{ maas_version }}/{{ maas_snap_channel }}"
-    state: present
-  register: maas_installed
-
 - name: Initialize MAAS Region + Rack Controller
   when: inventory_hostname in groups['maas_region_rack_server'] and maas_installed.failed == false and maas_installed.changed == true
   block:
@@ -29,10 +21,7 @@
     - name: Create MAAS admin user
       command: "sudo maas createadmin --username={{ maas_admin_username }} --password={{ maas_admin_password }} --email={{ maas_admin_email }}"
       ignore_errors: true
+      register: admin_user_created
 
     - name: Restart MAAS services
       command: "snap restart maas"
-
-    - name: Generate secret variable
-      command: "cat /var/snap/maas/common/maas/secret"
-      register: secret_var

roles/maas/tasks/install_maas_rack.yml renamed to roles/maas/tasks/initialize_secondary_rack.yml

@@ -1,15 +1,11 @@
 ---
-- name: Install MAAS with Snap in Rack Server
-  snap:
-    name: maas
-    classic: yes
-    channel: "{{ maas_version }}/{{ maas_snap_channel }}"
-    state: present
-  when: inventory_hostname in groups['maas_rack_server']
-  register: maas_rack_installed
+- name: Generate secret variable
+  command: "cat /var/snap/maas/common/maas/secret"
+  when: inventory_hostname in groups['maas_region_rack_server']
+  register: secret_var
 
 - name: Initialize MAAS Rack Controller
-  when: inventory_hostname in groups['maas_rack_server'] and maas_rack_installed.failed == false and secret_var is defined and maas_rack_installed.changed == true
+  when: inventory_hostname in groups['maas_rack_server'] and maas_installed.failed == false and secret_var is defined and maas_installed.changed == true
   block:
     - name: Removing conflicting NTP
       apt:

roles/maas/tasks/main.yml

@@ -17,9 +17,36 @@
 # Install and configure the MAAS DB
 - import_tasks: install_maasdb.yml
 
-# Install and initialize MAAS
-- import_tasks: install_maas_region.yml
-- import_tasks: install_maas_rack.yml
+# Install MAAS
+- name: Install MAAS with Snap
+  snap:
+    name: maas
+    classic: yes
+    channel: "{{ maas_version }}/{{ maas_snap_channel }}"
+    state: present
+  register: maas_installed
+
+# Initialize MAAS  
+- import_tasks: initialize_region_rack.yml
+- import_tasks: initialize_secondary_rack.yml
+
+# Logging into the MAAS API to use CLI
+
+- name: Get API key
+  command: maas apikey --username={{ maas_admin_username }}
+  when: inventory_hostname in groups['maas_region_rack_server']
+  register: maas_api_key
+
+- name: Logging into MAAS API
+  command: "maas login {{ maas_admin_username }} http://{{ hostvars[groups['maas_region_rack_server'].0]['ip'] }}:5240/MAAS/api/2.0/ {{ maas_api_key.stdout }}"
+  when: inventory_hostname in groups['maas_region_rack_server']
+  register: logged_into_maas
+
+# Configure DHCP Service
+- include_tasks: config_dhcpd.yml
+  loop: "{{ dhcp_subnets }}"
+#  loop_control:
+#    loop_var: subnet
 
 # Add Machines into MAAS
 - import_tasks: add_machines.yml

roles/maas/templates/dhcpd.classes.conf.j2

@@ -0,0 +1,10 @@
+{% for subnet, subnet_item in dhcp_subnets.items() %}
+{% if subnet_item.classes is defined -%}
+  {% for class_name, class_string in subnet_item.classes.items() -%}
+  class "{{ class_name }}" {
+    {{ class_string }};
+  }
+
+  {% endfor -%}
+  {%- endif -%}
+{% endfor %}