Add missing anonymous backend config for dynamic domains

After correctly enabling CETS for the 'anonymous' host type on mim1,
CETS cluster tests were failing because of missing tables on mim2.

The solutions was to add the 'anonymous' host type for mim2,
and set the anonymous auth backend to 'cets'.

For the sake of consistency, I also did it for mim3.

Author: chrzaszcz

rel/mim1.vars-toml.config

@@ -27,6 +27,7 @@
 {redis_database_number, "0"}.
 
 {mod_amp, ""}.
+
 {host_config,
   "[[host_config]]
   host = \"anonymous.localhost\"
@@ -39,11 +40,14 @@
     {{/auth_anonymous_backend}}
 
 [[host_config]]
-  host_type = \"anonymous\"
+  host = \"anonymous\"
 
   [host_config.auth.anonymous]
     allow_multiple_connections = true
     protocol = \"both\"
+    {{#auth_anonymous_backend}}
+    backend = \"{{{auth_anonymous_backend}}}\"
+    {{/auth_anonymous_backend}}
 
 [[host_config]]
   host_type = \"dummy auth\"

rel/mim2.vars-toml.config

@@ -17,7 +17,7 @@
 {http_prometheus_endpoint_port, 9092}.
 
 {hosts, "\"localhost\", \"anonymous.localhost\", \"localhost.bis\""}.
-{host_types, "\"test type\", \"dummy auth\""}.
+{host_types, "\"test type\", \"dummy auth\", \"anonymous\""}.
 {default_server_domain, "\"localhost\""}.
 {cluster_name, "mim"}.
 {redis_database_number, "0"}.
@@ -69,7 +69,17 @@
     backend = \"{{{auth_anonymous_backend}}}\"
     {{/auth_anonymous_backend}}
 
-  [[host_config]]
+[[host_config]]
+  host_type = \"anonymous\"
+
+  [host_config.auth.anonymous]
+    allow_multiple_connections = true
+    protocol = \"both\"
+    {{#auth_anonymous_backend}}
+    backend = \"{{{auth_anonymous_backend}}}\"
+    {{/auth_anonymous_backend}}
+
+[[host_config]]
   host_type = \"dummy auth\"
   [host_config.modules.mod_presence]
   [host_config.auth.dummy]"}.

rel/mim3.vars-toml.config

@@ -21,6 +21,7 @@
 {node_name, "mongooseim3@localhost"}.
 
 {hosts, "\"localhost\", \"anonymous.localhost\", \"localhost.bis\""}.
+{host_types, "\"test type\", \"anonymous\""}.
 {default_server_domain, "\"localhost\""}.
 {cluster_name, "mim"}.
 {redis_database_number, "0"}.
@@ -63,7 +64,16 @@
     {{#auth_anonymous_backend}}
     backend = \"{{{auth_anonymous_backend}}}\"
     {{/auth_anonymous_backend}}
-  "}.
+
+[[host_config]]
+  host_type = \"anonymous\"
+
+  [host_config.auth.anonymous]
+    allow_multiple_connections = true
+    protocol = \"both\"
+    {{#auth_anonymous_backend}}
+    backend = \"{{{auth_anonymous_backend}}}\"
+    {{/auth_anonymous_backend}}"}.
 
 {erlang_doctor_limit, 100000}.