Enable gzip compression to reduce bandwidth consumption

deploy/docker.proxy.template

@@ -29,6 +29,40 @@ server {
     # HSTS
     add_header Strict-Transport-Security "max-age=31536000";
 
+    # compression settings
+    gzip on;
+    gzip_comp_level    5;
+    gzip_min_length    256;
+    gzip_proxied       any;
+    gzip_vary          on;
+
+    gzip_types
+        application/atom+xml
+        application/javascript
+        application/json
+        application/ld+json
+        application/activity+json
+        application/manifest+json
+        application/rss+xml
+        application/vnd.geo+json
+        application/vnd.ms-fontobject
+        application/x-font-ttf
+        application/x-web-app-manifest+json
+        application/xhtml+xml
+        application/xml
+        font/opentype
+        image/bmp
+        image/svg+xml
+        image/x-icon
+        text/cache-manifest
+        text/css
+        text/plain
+        text/vcard
+        text/vnd.rim.location.xloc
+        text/vtt
+        text/x-component
+        text/x-cross-domain-policy;
+
     location / {
         include /etc/nginx/funkwhale_proxy.conf;
         proxy_pass   http://fw/;