slack-bazel-build/docker/nginx.conf

user  nginx;
worker_processes  1;

error_log  stderr warn;
pid        /var/run/nginx.pid;

events {
    worker_connections  1024;
    multi_accept  on;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;
    access_log    off;

    server {
        listen      ${PORT};
        server_name slack.bazel.build;

        return 301 https://join.slack.com/t/bazelbuild/shared_invite/zt-2clrkqibm-toMqU42FAuKybPxA0rzEPA;

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   /usr/share/nginx/html;
        }
    }
}