Factor out compute node inventory generation into a separate playbook

ansible/compute-node-discovery.yml

@@ -1,24 +1,5 @@
 ---
-- name: Ensure compute nodes are present in the Ansible inventory
-  hosts: config-mgmt
-  gather_facts: no
-  vars:
-    # Set this to a colon-separated list of compute node hostnames on which to
-    # trigger discovery. If unset, all compute nodes will be triggered.
-    compute_node_limit:
-    compute_node_limit_list: "{{ compute_node_limit.split(':') }}"
-  tasks:
-    - name: Add hosts for the compute nodes
-      add_host:
-        name: "{{ item.key }}"
-        groups: compute
-      with_dict: "{{ idrac_network_ips }}"
-      # Don't add hosts that already exist.
-      when:
-        - "{{ item.key not in groups['all'] }}"
-        - "{{ item.key | replace('-idrac', '') not in groups['all'] }}"
-        - "{{ not compute_node_limit or item.key | replace('-idrac', '') in compute_node_limit_list }}"
-      run_once: True
+- include: dell-compute-node-inventory.yml
 
 - name: Ensure compute nodes are PXE booted
   hosts: compute
@@ -36,12 +17,6 @@
       with_items:
         - "{{ hostvars[delegate_host].ansible_host }}"
 
-    - name: Set a fact containing the compute node IPMI address
-      set_fact:
-        ipmi_username: "{{ inspector_ipmi_username }}"
-        ipmi_password: "{{ inspector_ipmi_password }}"
-        ipmi_address: "{{ idrac_network_ips[inventory_hostname] }}"
-
     - name: Ensure compute nodes are powered off
       command: ipmitool -U {{ ipmi_username }} -P {{ ipmi_password }} -H {{ ipmi_address }} -I lanplus chassis power off
       delegate_to: "{{ item }}"

ansible/dell-compute-node-boot-mode.yml

@@ -1,26 +1,8 @@
 ---
 # Set the boot mode (BIOS, UEFI) of Dell compute nodes.
 
-- name: Ensure compute nodes are present in the Ansible inventory
-  hosts: config-mgmt
-  gather_facts: no
-  vars:
-    # Set this to a colon-separated list of compute node hostnames on which to
-    # set the boot mode. If unset, all compute nodes will be set.
-    compute_node_limit: ""
-    compute_node_limit_list: "{{ compute_node_limit.split(':') }}"
-  tasks:
-    - name: Add hosts for the compute nodes
-      add_host:
-        name: "{{ item.key }}"
-        groups: compute
-      with_dict: "{{ idrac_network_ips }}"
-      # Don't add hosts that already exist.
-      when:
-        - "{{ item.key not in groups['all'] }}"
-        - "{{ item.key | replace('-idrac', '') not in groups['all'] }}"
-        - "{{ not compute_node_limit or item.key | replace('-idrac', '') in compute_node_limit_list }}"
-      run_once: True
+# Add compute nodes to the Ansible inventory.
+- include: dell-compute-node-boot-mode.yml
 
 - name: Ensure compute nodes boot mode is set
   hosts: compute
@@ -28,17 +10,6 @@
   vars:
     # Set this to the required boot mode. One of 'bios' or 'uefi'.
     drac_boot_mode: "bios"
-  tasks:
-    - name: Set a fact containing the compute node IPMI address
-      set_fact:
-        ansible_host: "{{ idrac_network_ips[inventory_hostname] }}"
-        ansible_user: "{{ ipmi_username }}"
-        ansible_ssh_pass: "{{ ipmi_password }}"
-
-    - name: Ensure the compute node's BMC is added as an SSH known host
-      include_role:
-        role: ssh-known-host
-
-    - name: Ensure the compute node's boot mode is set
-      include_role:
-        role: drac-boot-mode
+  roles:
+    - role: ssh-known-host
+    - role: drac-boot-mode

ansible/dell-compute-node-discovery.yml

@@ -1,24 +1,8 @@
 ---
-- name: Ensure compute nodes are present in the Ansible inventory
-  hosts: config-mgmt
-  gather_facts: no
-  vars:
-    # Set this to a colon-separated list of compute node hostnames on which to
-    # trigger discovery. If unset, all compute nodes will be triggered.
-    compute_node_limit: ""
-    compute_node_limit_list: "{{ compute_node_limit.split(':') }}"
-  tasks:
-    - name: Add hosts for the compute nodes
-      add_host:
-        name: "{{ item.key }}"
-        groups: compute
-      with_dict: "{{ idrac_network_ips }}"
-      # Don't add hosts that already exist.
-      when:
-        - "{{ item.key not in groups['all'] }}"
-        - "{{ item.key | replace('-idrac', '') not in groups['all'] }}"
-        - "{{ not compute_node_limit or item.key | replace('-idrac', '') in compute_node_limit_list }}"
-      run_once: True
+# Configure the compute nodes to PXE boot.
+
+# Add compute nodes to the Ansible inventory.
+- include: dell-compute-node-inventory.yml
 
 - name: Ensure compute nodes are PXE booted
   hosts: compute
@@ -28,17 +12,6 @@
     drac_pxe_interface: 1
     # Set this to a list of indices of all interfaces.
     drac_pxe_all_interfaces: [1, 2, 3, 4]
-  tasks:
-    - name: Set a fact containing the compute node IPMI address
-      set_fact:
-        ansible_host: "{{ idrac_network_ips[inventory_hostname] }}"
-        ansible_user: "{{ ipmi_username }}"
-        ansible_ssh_pass: "{{ ipmi_password }}"
-
-    - name: Ensure the compute node's BMC is added as a known host
-      include_role:
-        role: ssh-known-host
-
-    - name: Ensure the compute node's BMC is set to PXE boot
-      include_role:
-        role: drac-pxe
+  roles:
+    - role: ssh-known-host
+    - role: drac-pxe

ansible/dell-compute-node-inventory.yml

@@ -0,0 +1,25 @@
+---
+- name: Ensure compute nodes are present in the Ansible inventory
+  hosts: config-mgmt
+  gather_facts: no
+  vars:
+    # Set this to a colon-separated list of compute node hostnames on which to
+    # trigger discovery. If unset, all compute nodes will be triggered.
+    compute_node_limit: ""
+    compute_node_limit_list: "{{ compute_node_limit.split(':') }}"
+  tasks:
+    - name: Add hosts for the compute nodes
+      add_host:
+        name: "{{ item.key }}"
+        groups: compute
+        # SSH configuration to access the BMC.
+        ansible_host: "{{ item.value }}"
+        ansible_user: "{{ ipmi_username }}"
+        ansible_ssh_pass: "{{ ipmi_password }}"
+      with_dict: "{{ idrac_network_ips }}"
+      # Don't add hosts that already exist.
+      when:
+        - "{{ item.key not in groups['all'] }}"
+        - "{{ item.key | replace('-idrac', '') not in groups['all'] }}"
+        - "{{ not compute_node_limit or item.key | replace('-idrac', '') in compute_node_limit_list }}"
+      run_once: True