# Build Gaia Deterministically

The Tendermint rbuilder Docker image (opens new window) provides a deterministic build environment that is used to build Cosmos SDK applications. It provides a way to be reasonably sure that the executables are really built from the git source. It also makes sure that the same, tested dependencies are used and statically built into the executable.

# Prerequisites

Make sure you have Docker installed on your system (opens new window).

All the following instructions have been tested on Ubuntu 18.04.2 LTS with docker 20.10.2.

# Build

Clone gaia:

Copy git clone https://github.com/cosmos/gaia.git

Checkout the commit, branch, or release tag you want to build:

Copy cd gaia/ git checkout v4.2.1

The buildsystem supports and produces binaries for the following architectures:

  • darwin/amd64
  • linux/amd64
  • linux/arm64
  • windows/amd64

Run the following command to launch a build for all supported architectures:

Copy make distclean build-reproducible

The build system generates both the binaries and deterministic build report in the artifacts directory. The artifacts/build_report file contains the list of the build artifacts and their respective checksums, and can be used to verify build sanity. An example of its contents follows:

Copy App: gaiad Version: v4.2.1 Commit: dbd8a6fb522c571debf958837f9113c56d418f6b Files: 29d219b0b120b3188bd7cd7249fc96b9 gaiad-v4.2.1-darwin-amd64 80338d9f0e55ea8f6c93f2ec7d4e18d6 gaiad-v4.2.1-linux-amd64 9bc77a512acca673ca1769ae67b4d6c7 gaiad-v4.2.1-linux-arm64 c84387860f52178e2bffee08897564bb gaiad-v4.2.1-windows-amd64.exe c25cca8ccceec06a6fabae90f671fab1 gaiad-v4.2.1.tar.gz Checksums-Sha256: 05e5b9064bac4e71f0162c4c3c3bff55def22ca016d34205a5520fef89fd2776 gaiad-v4.2.1-darwin-amd64 ccda422cbda29c723aaf27653bcf0f6412e138eec33fba2b49de131f9ffbe2d2 gaiad-v4.2.1-linux-amd64 95f89e8213cb758d12e1b0b631285938de822d04d2e25f399e99c0b798173cfd gaiad-v4.2.1-linux-arm64 7ef98f0041f1573f0a8601abad4a14b1c163f47481c7ba1954fd81ed423a6408 gaiad-v4.2.1-windows-amd64.exe 422883ba43c96a6ea5ef9512d39321dd1356633c6a9505517b9c651788df4a7f gaiad-v4.2.1.tar.gz