Micro-bastion is a minimal HTTP forwarding service originally built for accessing microservices from outside their cluster for development purposes.
Can be built with standard Go installation:
go buildOr use the Dockerfile
docker build -t micro-bastion .
docker run -p 8888:8888 -it micro-bastion # starting the server./micro-bastion [--port PORT]
Then you can make requests to it on the port it is listening on (default 8888) as follows:
http://localhost:8888/[hostname]/[port]/[path]
and micro-bastion will forward the request to the specified host and port (note that the port is mandatory). Micro-bastion currently only supports http.
Example:
http://localhost:8888/example.org/80/
http://localhost:8888/xn--kdaa.eu/80/vant4.png
(it will also serve back any redirects as-is, so if opened in a browser, the second example will have you redirected to the actual website with https)
If put into e.g. AWS ECS, it can resolve service discovery domains, like
http://localhost:8888/myservice.local/3000/myendpoint
Running this opened to the internet would make essentially an open proxy. It is strongly recommended to limit access to it by firewall. Micro-bastion does not currently support any access control methods on its own.
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.