mattermost_ynh/conf/nginx.conf

# Directives from the Mattermost installation guide

location ~ ^__PATH__/api/v[0-9]+/(users/)?websocket$ {
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    client_max_body_size 50M;
    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 X-Frame-Options SAMEORIGIN;
    proxy_buffers 256 16k;
    proxy_buffer_size 16k;
    client_body_timeout 60s;
    send_timeout 300s;
    lingering_timeout 5s;
    proxy_connect_timeout 90s;
    proxy_send_timeout 300s;
    proxy_read_timeout 90s;
    proxy_http_version 1.1;
    proxy_pass http://127.0.0.1:__PORT__;
}

location __PATH__/ {
    client_max_body_size 100M;
    proxy_set_header Connection "";
    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 X-Frame-Options SAMEORIGIN;
    proxy_buffers 256 16k;
    proxy_buffer_size 16k;
    proxy_read_timeout 600s;
    proxy_http_version 1.1;
    proxy_pass http://127.0.0.1:__PORT__;
}