A top level redirect can be updated to point to the latest git ref Docker container.
location = / {
rewrite ^/(.*) /abc1234/$1 redirect;
}
location ~ "^/([0-9a-zA-Z]{7})/.*$" {
set $target $1.myimage.dev.docker:5000;
auth_basic off;
proxy_pass http://$target;
proxy_redirect off;
proxy_read_timeout 90;
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 Authorization "";
}