Install snap on CentOS instead

metal/roles/snap/tasks/main.yml

@@ -1,7 +1,23 @@
+- name: Install EPEL repository
+  yum:
+    name: epel-release
+
 - name: Install snap
-  apt:
+  yum:
     name: snapd
 
+- name: Start snap service
+  service:
+    name: snapd.socket
+    state: started
+    enabled: yes
+
+- name: Enable classic snap support
+  file:
+    src: /var/lib/snapd/snap
+    dest: /snap
+    state: link
+
 - name: Get the latest snapd
   snap:
     name: core