fix(synapse): use correct key in hostvars

roles/cinny/meta/main.yml

@@ -0,0 +1,12 @@
+---
+allow_duplicates: true
+dependencies: []
+galaxy_info:
+  role_name: cinny
+  description: Deploy cinny, a matrix web client, using podman, docker or a raw tarball to serve from your webserver
+  galaxy_tags:
+    - cinny
+    - matrix
+    - matrix-client
+    - docker
+    - podman

roles/element/meta/main.yml

@@ -0,0 +1,12 @@
+---
+allow_duplicates: true
+dependencies: []
+galaxy_info:
+  role_name: element
+  description: Deploy element, a matrix web client, using either docker, podman or a raw tarball to serve with your webserver
+  galaxy_tags:
+    - element
+    - matrix
+    - matrix-client
+    - docker
+    - podman

roles/synapse/meta/main.yml

@@ -0,0 +1,12 @@
+---
+allow_duplicates: true
+dependencies: []
+galaxy_info:
+  role_name: synapse
+  description: Deploy synapse, a matrix homeserver. Supports docker, podman, virtualenv
+  galaxy_tags:
+    - synapse
+    - matrix
+    - homeserver
+    - docker
+    - podman

roles/synapse/tasks/check.yml

@@ -17,8 +17,8 @@
     msg: "Required variable '{{ item }}' is undefined!"
   loop: "{{ synapse_required_variables }}"
   when: >-2
-    item not in hostvars[ansible_host]
-    or hostvars[ansible_host][item] | length == 0
+    item not in hostvars[inventory_hostname]
+    or hostvars[inventory_hostname][item] | length == 0
 
 - name: Ensure conditionally required variables are given
   ansible.builtin.fail: