synapse workers: reworkings + get endpoints from upstream docs via awk

(yes, a bit awkward and brittle… xD)

roles/matrix-synapse/defaults/main.yml

@@ -275,31 +275,22 @@ matrix_synapse_manhole_enabled: false
 # Enable support for Synapse workers
 matrix_synapse_workers_enabled: false
 
-# Default list of workers to spawn
-# (worker with ports ending on 00 are single-instance)
+# Default list of workers to spawn (order in accord to docs)
+# - no endpoints / doesn't need port mapping if port ends on 0
+# - single-instance-only if 2nd last digit of port number is 0
 matrix_synapse_workers_enabled_list:
-  - { worker: generic_worker, port: 18101 }
-  - { worker: generic_worker, port: 18102 }
-  - { worker: generic_worker, port: 18103 }
-  - { worker: generic_worker, port: 18104 }
-  - { worker: generic_worker, port: 18105 }
-  - { worker: generic_worker, port: 18106 }
-  - { worker: appservice, port: 18200 }
-  - { worker: federation_sender, port: 18301 }
-  - { worker: frontend_proxy, port: 18400 }
-  - { worker: media_repository, port: 18501 }
-  - { worker: pusher, port: 18600 }
-  - { worker: user_dir, port: 18700 }
-
-# The list of available workers (2020-08-28)
-matrix_synapse_workers_avail_list:
-  - generic_worker
-  - appservice
-  - federation_sender
-  - frontend_proxy
-  - media_repository
-  - pusher
-  - user_dir
+  - { type: generic_worker, port: 18111 }
+  - { type: generic_worker, port: 18112 }
+  - { type: generic_worker, port: 18113 }
+  - { type: generic_worker, port: 18114 }
+  - { type: generic_worker, port: 18115 }
+  - { type: generic_worker, port: 18116 }
+  - { type: pusher, port: 00 }
+  - { type: appservice, port: 00 }
+  - { type: federation_sender, port: 0 }
+  - { type: media_repository, port: 18221 }
+  - { type: user_dir, port: 18331 }
+  - { type: frontend_proxy, port: 18441 }
 
 # Redis information
 matrix_synapse_redis_enabled: false