feat: Jaas example that uses local jitsi-meet (#13350)

* feat: Adds an example to convert a deployment to use jaas.

* squash: Generates the daily asap token with expiration of 1 day.

The default is 1 hour.

* squash: Use local deployment UI with jaas, not 8x8.vc one.

- We load config.js from 8x8.vc with the tenant, to allow release pinning to work.

- We sed the vpass_cookie in the custom nginx conf as variables are not allowed in location matching.

- The jaas-vars need to be global as it will overwrite config.js location and index html.

* squash: Enables e2ee for the meetings.

* squash: Bump node version check.

* squash: Fix filename.

* squash: Updates the readme.

* squash: Checks whether node is installed.

* squash: Fixes initial configuration.

The jaas-vars is required to reload nginx, done by update-asap-daily script.

* squash: More fixes of misspelled config file.

* squash: Fixes serving the pub key.

doc/debian/jitsi-meet/jitsi-meet.example

@@ -58,6 +58,8 @@ server {
 
     add_header Strict-Transport-Security "max-age=63072000" always;
     set $prefix "";
+    set $custom_index "";
+    set $config_js_location /etc/jitsi/meet/jitsi-meet.example.com-config.js;
 
     ssl_certificate /etc/jitsi/meet/jitsi-meet.example.com.crt;
     ssl_certificate_key /etc/jitsi/meet/jitsi-meet.example.com.key;
@@ -77,8 +79,10 @@ server {
     gzip_proxied no-cache no-store private expired auth;
     gzip_min_length 512;
 
+    include /etc/jitsi/meet/jaas/*.conf;
+
     location = /config.js {
-        alias /etc/jitsi/meet/jitsi-meet.example.com-config.js;
+        alias $config_js_location;
     }
 
     location = /external_api.js {
@@ -92,6 +96,11 @@ server {
         proxy_set_header Host $http_host;
     }
 
+    location ~ ^/_api/public/(.*)$ {
+        autoindex off;
+        alias /etc/jitsi/meet/public/$1;
+    }
+
     # ensure all static content can always be found first
     location ~ ^/(libs|css|static|images|fonts|lang|sounds|.well-known)/(.*)$
     {
@@ -142,11 +151,12 @@ server {
     #}
 
     location ~ ^/([^/?&:'"]+)$ {
+        set $roomname "$1";
         try_files $uri @root_path;
     }
 
     location @root_path {
-        rewrite ^/(.*)$ / break;
+        rewrite ^/(.*)$ /$custom_index break;
     }
 
     location ~ ^/([^/?&:'"]+)/config.js$
@@ -154,7 +164,7 @@ server {
         set $subdomain "$1.";
         set $subdir "$1/";
 
-        alias /etc/jitsi/meet/jitsi-meet.example.com-config.js;
+        alias $config_js_location;
     }
 
     # Matches /(TENANT)/pwa-worker.js or /(TENANT)/manifest.json to rewrite to / and look for file