helloworld/

helloworld sample

This sample shows how to build a confidential Go application and run it in Marblerun. This should serve as a blueprint for making existing applications Marblerun-ready or creating new ones. Detailed instructions for setting up Marblerun are omitted for brevity. Please refer to the documentation for that.

The directory app contains the application code:

• hello.go constitutes the actual program.
• mesh.go takes care of contacting the Marblerun Coordinator and applying the received configuration. To make a Go app Marblerun-ready, place this file in its main package.

You can build the sample as follows:

mkdir build
cd build
cmake ..
make

Then get the enclave's unique ID aka MRENCLAVE

oesign dump -e enclave.signed | grep mrenclave

and set it as UniqueID in manifest.json.

After you have started a Coordinator instance with EDG_COORDINATOR_MESH_ADDR=localhost:2001 and initialized it with the Manifest, you can run your application:

EDG_MARBLE_COORDINATOR_ADDR=localhost:2001 EDG_MARBLE_TYPE=hello EDG_MARBLE_UUID_FILE=$PWD/uuid EDG_MARBLE_DNS_NAMES=localhost erthost enclave.signed

This app will then serve HTTP on port 8080:

$ curl http://localhost:8080
Hello world!
Commandline arguments: [foo bar]