Node implementation for the Metal network. At its core Metal is a fork of the Avalanche project and aims to maintain upstream changes.

The minimum recommended hardware specification for nodes connected to Mainnet is:

• CPU: Equivalent of 8 AWS vCPU
• RAM: 16 GiB
• Storage: 250GiB
• OS: Ubuntu 22.04 or macOS >= 12
• Network: Reliable IPv4 or IPv6 network connection, with an open public port.

If you plan to build MetalGo from source, you will also need the following software:

• Go version >= 1.20.10
• gcc
• g++

Clone the MetalGo repository:

git clone git@github.com:MetalBlockchain/metalgo.git
cd metalgo

This will clone and checkout the master branch.

Build Metal using the build script:

./scripts/build.sh

The Metal binary, named metalgo, is in the build directory.

Make sure Docker is installed on the machine - so commands like docker run etc. are available.

Building the docker image of latest metalgo branch can be done by running:

./scripts/build_image.sh

To check the built image, run:

docker image ls

The image should be tagged as metalblockchain/metalgo:xxxxxxxx, where xxxxxxxx is the shortened commit of the Metal source it was built from. To run the Metal node, run:

docker run -ti -p 9650:9650 -p 9651:9651 metalblockchain/metalgo:xxxxxxxx /metalgo/build/metalgo

To connect to the Metal Mainnet, run:

./build/metalgo

You should see some pretty ASCII art and log messages.

You can use Ctrl+C to kill the node.

To connect to the Tahoe Testnet, run:

./build/metalgo --network-id=tahoe

MetalGo can run on different platforms, with different support tiers:

• Tier 1: Fully supported by the maintainers, guaranteed to pass all tests including e2e and stress tests.
• Tier 2: Passes all unit and integration tests but not necessarily e2e tests.
• Tier 3: Builds but lightly tested (or not), considered experimental.
• Not supported: May not build and not tested, considered unsafe. To be supported in the future.

The following table lists currently supported platforms and their corresponding MetalGo support tiers:

To officially support a new platform, one must satisfy the following requirements:

We and our community welcome responsible disclosures.

We're working on a bug bountry program, in the meantime please submit any bugs or vulnerabilities to bugs@metalblockchain.org