Several improvements (see below); New default: Only last 3 speakers will be have active video

- Remove Jitsi runtime config in case of Ansible tag teardown
- Performance: DefautSet Jitsi Web config channelLastN using jitsi_web_channel_last_n
- Adds submodule with the source of docker-jitsi-meet, which this role is based on.

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "src"]
+	path = src
+	url = https://github.com/jitsi/docker-jitsi-meet.git

README.md

@@ -34,6 +34,7 @@ Role Variables
 | jitsi_jvb_auth_password       |                                                                                 |                                     |
 | jitsi_jvb_auth_user           |                                                                                 |                                     |
 | jitsi_jvb_stun_servers        |                                                                                 | meet-jit-si-turnrelay.jitsi.net:443 |
+| jitsi_web_channel_last_n      | Performance: Limit video streams to the last N speakers (-1 = unlimited)        | 3                                   |
 | jitsi_public_url              | The public URL under which Jitsi Meet can be accessed                           | http://localhost                    |
 | jitsi_timezone                |                                                                                 | Europe/Amsterdam                    |
 | jitsi_virtual_host            | The virtual host that is e.g. used by Traefik, usually part of the public url   | localhost                           |

defaults/main.yml

@@ -8,4 +8,5 @@ jitsi_exposed_https_port: 8443
 jitsi_virtual_host: localhost
 jitsi_public_url: http://{{ jitsi_virtual_host }}
 jitsi_timezone: Europe/Amsterdam
-jitsi_jvb_stun_servers: meet-jit-si-turnrelay.jitsi.net:443
+jitsi_jvb_stun_servers: meet-jit-si-turnrelay.jitsi.net:443
+jitsi_web_channel_last_n: 3

src

@@ -0,0 +1 @@
+Subproject commit eae3f5ce2d7627afe4115f52a61cc7ae3e3e8a31

tasks/main.yml

@@ -8,6 +8,12 @@
     group: '{{ docker_user }}'
   tags: config
 
+- name: "Teardown: Remove Jitsi runtime config"
+  file:
+    path: /home/{{ docker_user }}/jitsi/conf
+    state: absent
+  tags: ['never', 'teardown']
+
 - name: Ensure jitsi config directory exists
   file:
     path: /home/{{ docker_user }}/jitsi/conf
@@ -67,6 +73,14 @@
     host: localhost
     port: "{{ jitsi_exposed_http_port }}"
 
+- name: "Config: Set channelLastN"
+  lineinfile:
+    path: /home/{{ docker_user }}/jitsi/conf/web/config.js
+    regexp: '(\s*)channelLastN:\s*[^,]+,'
+    line: '\1channelLastN: {{jitsi_web_channel_last_n|default("-1")}},'
+    backrefs: yes
+  tags: config
+
 - name: "Test whether Jitsi is healthy from the outside"
   become: false
   uri: