refactor(ansible): centralize inventory and variables in 'vars' directory

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

playbooks/docker-host.yml

@@ -2,8 +2,6 @@
 - name: Set up Servers
   hosts: docker_host
   gather_facts: true
-  vars_files:
-    - secrets.yml
   roles:
     - role: common
       tags:

playbooks/docker-lb.yml

@@ -2,8 +2,6 @@
 - name: Set up reverse proxy for docker
   hosts: docker
   gather_facts: true
-  vars_files:
-    - secrets.yml
   roles:
     - role: common
       tags:

playbooks/k3s-agents.yml

@@ -1,8 +1,6 @@
 - name: Set up Agents
   hosts: k3s_nodes
   gather_facts: yes
-  vars_files:
-    - secrets.yml
   pre_tasks:
     - name: Get K3s token from the first server
       when: host.ip == k3s.server.ips[0] and inventory_hostname in groups["k3s_server"]

playbooks/k3s-servers.yml

@@ -2,8 +2,6 @@
 - name: Set up Servers
   hosts: k3s_server
   gather_facts: yes
-  vars_files:
-    - secrets.yml
   roles:
     - role: common
       tags:

playbooks/k3s-storage.yml

@@ -1,8 +1,6 @@
 - name: Set up storage
   hosts: k3s_nodes
-  gather_facts: yes
-  vars_files:
-    - secrets.yml
+  gather_facts: true
   pre_tasks:
     - name: Get K3s token from the first server
       when: host.ip == k3s.server.ips[0] and inventory_hostname in groups["k3s_server"]

playbooks/loadbalancer.yml

@@ -2,8 +2,6 @@
 - name: Set up Servers
   hosts: loadbalancer
   gather_facts: yes
-  vars_files:
-    - secrets.yml
   roles:
     - role: common
       tags:

playbooks/proxmox.yml

@@ -2,8 +2,6 @@
 - name: Run proxmox vm playbook
   hosts: proxmox
   gather_facts: true
-  vars_files:
-    - secrets.yml
   vars:
     is_localhost: "{{ inventory_hostname == '127.0.0.1' }}"
     is_proxmox_node: "{{ 'proxmox_nodes' in group_names }}"