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Building bitcoin with a gitian-builder Docker container
This image allows automated gitian builds of bitcoin using a docker container. Before proceeding make sure you have created the necessary gdm85/wheezy, gdm85/gitian-host and gdm85/gitian-host-vms images, see these instructions.
Afterwards you can create the gdm85/gitian-bitcoin-host image by running scripts/create-gitian-bitcoin-host.sh.
NOTE: this image currently supports only building of bitcoin 0.9.1, but it can be easily adapted to build other versions. You can submit the source lists for other versions as a patch or pull request, see directory input-sources/ for currently available versions.
Do not forget to read also the Preamble here to correctly use Gitian builder and these provided scripts.
Spawning a container
You can spawn a new container for Gitian bitcoin builds with:
This script will create the running docker container and provide details about how to connect via SSH to the container, example:
$ scripts/spawn-gitian-bitcoin-host.sh
You can now SSH into container 3bc0d0611374ca4d4730fd5fb1067808b1bcfd072ec7cf029393a7fd99ec856e:
ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no debian@172.17.0.3
$
You can use this specific SSH command line to get a shell in the container and proceed to next steps.
Preparing the gitian environment
To initiate a gitian build of bitcoin you will run:
- ./build-bitcoin.sh 0.9.1
Notice the parameter 0.9.1, that is the version we are going to build and must be available in input-sources.
build-bitcoin.sh is a script that will download & build all the dependencies and then bitcoin itself, for both i386 and amd64 Linux architectures.
Signing
Once you have completed the build of bitcoin, you will be ready to perform the signing; before doing that you should verify that signatures are matching with those of other developers by peeking inside ~/gitian.sigs of the running container. Only the out_manifest signatures do matter for this purpose.
In order to sign you have to either put your private key in the container's ~/.gnupg or perform the signing externally, at your option.
If you have the private key in the container (also displayed by gpg -K), then you can use the sign.sh script that is already provided, otherwise
run it (with failure) and then copy the ~/gitian.sigs directory to another machine to apply the GPG signature.
Submitting your signature
If everything went well, you can fork the gitian sigs repo, commit your signatures and submit a pull request for inclusion.