feat(mastodon): add ansible role for deployment

roles/mastodon/templates/nginx.conf.j2

@@ -0,0 +1,94 @@
+map $http_upgrade $connection_upgrade {
+  default upgrade;
+  ''      close;
+}
+
+upstream backend {
+    server {{ mastodon_api_backend }} fail_timeout=0;
+}
+
+upstream streaming {
+    server {{ mastodon_streaming_backend }} fail_timeout=0;
+}
+
+proxy_cache_path {{ mastodon_container_nginx_cache_directory }} levels=1:2 keys_zone=CACHE:10m inactive=7d max_size=2g;
+
+server {
+  listen {{ mastodon_backend }};
+  server_name {{ mastodon_nginx_server_name }};
+
+  keepalive_timeout    70;
+  sendfile             on;
+  client_max_body_size 200m;
+
+  root {{ mastodon_container_nginx_working_directory }};
+
+  gzip on;
+  gzip_disable "msie6";
+  gzip_vary on;
+  gzip_proxied any;
+  gzip_comp_level 6;
+  gzip_buffers 16 8k;
+  gzip_http_version 1.1;
+  gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml image/x-icon;
+
+  location / {
+    try_files $uri @proxy;
+  }
+
+  location ~ ^/(emoji|packs|system/accounts/avatars|system/media_attachments/files) {
+    add_header Cache-Control "public, max-age=31536000, immutable";
+    add_header Strict-Transport-Security "max-age=31536000" always;
+    try_files $uri @proxy;
+  }
+
+  location /sw.js {
+    add_header Cache-Control "public, max-age=0";
+    add_header Strict-Transport-Security "max-age=31536000" always;
+    try_files $uri @proxy;
+  }
+
+  location @proxy {
+    proxy_set_header Host $host;
+    proxy_set_header X-Real-IP $remote_addr;
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_set_header X-Forwarded-Proto $scheme;
+    proxy_set_header Proxy "";
+    proxy_pass_header Server;
+
+    proxy_pass http://backend;
+    proxy_buffering on;
+    proxy_redirect off;
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection $connection_upgrade;
+
+    proxy_cache CACHE;
+    proxy_cache_valid 200 7d;
+    proxy_cache_valid 410 24h;
+    proxy_cache_use_stale error timeout updating http_500 http_502 http_503 http_504;
+    add_header X-Cached $upstream_cache_status;
+    add_header Strict-Transport-Security "max-age=31536000" always;
+
+    tcp_nodelay on;
+  }
+
+  location /api/v1/streaming {
+    proxy_set_header Host $host;
+    proxy_set_header X-Real-IP $remote_addr;
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_set_header X-Forwarded-Proto $scheme;
+    proxy_set_header Proxy "";
+
+    proxy_pass http://streaming;
+    proxy_buffering off;
+    proxy_redirect off;
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection $connection_upgrade;
+
+    tcp_nodelay on;
+  }
+
+  error_page 500 501 502 503 504 /500.html;
+}