Set custom facts persistently

Create /etc/ansible/facts.d/zerotier.fact on each node containing custom facts in json format. This can then be used to prevent pointless reconfiguration of existing nodes whenever a new one is added to the inventory. In this commit it merely skips the installation tasks.

tasks/authorize_node.yml

@@ -1,24 +1,8 @@
 ---
-- block:
-  - name: Get Zerotier NodeID
-    shell: zerotier-cli info | awk '{print $3}'
-    register: nodeid
-    changed_when: false
-
-  - name: Set NodeID as fact
-    set_fact:
-      zerotier_node_id: "{{ nodeid.stdout }}"
-
-  when:
-  - zerotier_accesstoken is defined
-  - not ansible_check_mode
-  tags:
-  - configuration
-
 - block:
   - name: Authorize members to network
     uri:
-      url: "{{ zerotier_api_url }}/api/network/{{ zerotier_network_id }}/member/{{ zerotier_node_id }}"
+      url: "{{ zerotier_api_url }}/api/network/{{ zerotier_network_id }}/member/{{ ansible_local.zerotier.node_id }}"
       method: POST
       headers:
         Authorization: bearer {{ zerotier_accesstoken }}
@@ -32,7 +16,7 @@
 
   - name: Configure members in network
     uri:
-      url: "{{ zerotier_api_url }}/api/network/{{ zerotier_network_id }}/member/{{ zerotier_node_id }}"
+      url: "{{ zerotier_api_url }}/api/network/{{ zerotier_network_id }}/member/{{ ansible_local.zerotier.node_id }}"
       method: POST
       headers:
         Authorization: bearer {{ zerotier_accesstoken }}
@@ -46,7 +30,6 @@
     delegate_to: "{{ zerotier_api_delegate }}"
 
   when:
-  - zerotier_accesstoken is defined
   - not ansible_check_mode
   tags:
   - configuration

tasks/main.yml

@@ -3,10 +3,20 @@
 - import_tasks: install.yml
   when:
   - not skip_install|default(false)|bool
+  - ansible_local.zerotier is not defined
+
+- block:
+  - name: Update ansible_local facts
+    script: set_facts.sh
+
+  - name: Re-gather facts
+    setup: ~
+
 
 - import_tasks: authorize_node.yml
   when:
   - zerotier_accesstoken is defined
+  - ansible_local.zerotier.node_id is defined
 
 - import_tasks: join_network.yml
   when: