Nginx reverse proxy config for CouchDB, taking master-master replication into account

couchdb.conf

upstream couchdb_servers {
  server couchdb1:5984 max_fails=0 fail_timeout=10s;
  server couchdb2:5984 max_fails=0 fail_timeout=10s;
}

location / {
    proxy_pass http://couchdb_servers:5984;
    proxy_redirect off;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}

location ~ ^/(.*)/_changes {
    proxy_pass http://couchdb_servers:5984;
    proxy_redirect off;
    proxy_buffering off;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}