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Add simple script for running gitian-build

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This shell script creates a docker image for running the gitian-build.py
script, to avoid version incompatibilities. The builds may be signed
automatically after manually reviewing the build hashes.

Only docker.io and apt-cacher-ng are required to be installed on the
host. The MacOSX SDK should also be present in this directory if Mac
builds are desired. A container named "gitrun" is used to launch
the builds, and all output will reside in this container as well.
This commit is contained in:
Howard Chu 2021-08-31 02:54:37 +01:00
parent 8fde011dbe
commit 4571d3686d
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85
contrib/gitian/DOCKRUN.md Normal file
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@ -0,0 +1,85 @@
Quick Gitian building with docker
=================================
*Setup instructions for a Gitian build of Monero using Docker.*
Gitian supports other container mechanisms too but if you have a Debian or
Ubuntu-based host the steps can be greatly simplified.
Preparing the Gitian builder host
---------------------------------
The procedure here will create a docker container for build preparation, as well as
for actually running the builds. The only items you must install on your own host
are docker and apt-cacher-ng. With docker installed, you should also give yourself
permission to use docker by adding yourself to the docker group.
```bash
sudo apt-get install docker.io apt-cacher-ng
sudo usermod -aG docker $USER
su $USER
```
The final `su` command is needed to start a new shell with your new group membership,
since the `usermod` command doesn't affect any existing sessions.
If you want Mac binaries included in your build, you need to obtain the MacOS SDK:
```bash
curl -O https://bitcoincore.org/depends-sources/sdks/MacOSX10.11.sdk.tar.gz
```
Other User Preparation
----------------------
The final step will be to `gpg` sign the results of your build and upload them to GitHub.
Before you can do that, you'll need
* a GitHub account.
If your GitHub account name is different from your local account name, you must
set your GitHub account name for the script to use:
```bash
export GH_USER=<github account name>
```
* PGP keys - if you don't have one already, you can use `gpg --quick-gen-key` to generate it.
* a fork of the [gitian.sigs](https://github.com/monero-project/gitian.sigs/) repo on your GitHub account.
Please follow the directions there for uploading your key first.
**Note:** Please ensure your gpg public key is available to check signatures by adding it to the [gitian.sigs/gitian-pubkeys/](https://github.com/monero-project/gitian.sigs/tree/master/gitian-pubkeys) directory in a pull request.
Building the Binaries
---------------------
The dockrun.sh script will do everything to build the binaries. Just specify the
version to build as its only argument, e.g.
```bash
./dockrun.sh v0.17.2.3
```
The build should run to completion with no errors, and will display the SHA256 checksums
of the resulting binaries. You'll be prompted to check if the sums look good, and if so
then the results will be signed, and the signatures will be pushed to GitHub.
You can also look in the [gitian.sigs](https://github.com/monero-project/gitian.sigs/) repo and / or [getmonero.org release checksums](https://web.getmonero.org/downloads/hashes.txt) to see if others got the same checksum for the same version tag. If there is ever a mismatch -- **STOP! Something is wrong**. Contact others on IRC / GitHub to figure out what is going on.
Other Options
-------------
This script just runs the [gitian-build.py](gitian-build.py) inside a container named `gitrun`.
You can set other options for that script by setting the OPT variable when running `dockrun.sh`
e.g.
```bash
OPT="-j 8" ./dockrun.sh v0.17.2.3
```
You can also examine the build and install logs by running a shell in the container, e.g.
```bash
docker exec -it gitrun /bin/bash
more builder/var/install-linux.log
```

2
contrib/gitian/README.md
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@ -31,6 +31,8 @@ This guide explains how to set up the environment, and how to start the builds.
* Gitian gives you the option of using any of 3 different virtualization tools: `kvm`, `docker` or `lxc`. This documentation will only show how to build with `lxc` and `docker` (documentation for `kvm` is welcome). Building with `lxc` is the default, but is more complicated, so we recommend docker your first time. * Gitian gives you the option of using any of 3 different virtualization tools: `kvm`, `docker` or `lxc`. This documentation will only show how to build with `lxc` and `docker` (documentation for `kvm` is welcome). Building with `lxc` is the default, but is more complicated, so we recommend docker your first time.
* For a shortcut using `docker` follow the instructions in [DOCKRUN.md](DOCKRUN.md) instead
of following the rest of this document..
## Create the gitianuser account ## Create the gitianuser account

133
contrib/gitian/dockrun.sh Executable file
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#!/bin/sh
if [ $# -ne 1 ]; then
echo "usage: $0 <version>"
exit 1
fi
VERSION=$1
DOCKER=`command -v docker`
CACHER=`command -v apt-cacher-ng`
if [ -z "$DOCKER" -o -z "$CACHER" ]; then
echo "$0: you must first install docker.io and apt-cacher-ng"
echo " e.g. sudo apt-get install docker.io apt-cacher-ng"
exit 1
fi
GH_USER=${GH_USER-$USER}
TAG=gitrun-bionic
TAG2=base-bionic-amd64
IMAGE=`docker images | grep $TAG`
WORKDIR=/home/ubuntu
if [ -z "$IMAGE" ]; then
GID=`getent group docker`
mkdir -p docker
cd docker
# container for running gitian-build.py
cat <<EOF > ${TAG}.Dockerfile
FROM ubuntu:bionic
ENV DEBIAN_FRONTEND=noninteractive
RUN echo 'Acquire::http { Proxy "http://172.17.0.1:3142"; };' > /etc/apt/apt.conf.d/50cacher
RUN echo "$GID" >> /etc/group
RUN apt-get update && apt-get --no-install-recommends -y install lsb-release ruby git make wget docker.io python3 curl
RUN useradd -ms /bin/bash -U ubuntu -G docker
USER ubuntu:docker
WORKDIR $WORKDIR
RUN git clone https://github.com/monero-project/gitian.sigs.git sigs; \
git clone https://github.com/devrandom/gitian-builder.git builder; \
cd builder; git checkout c0f77ca018cb5332bfd595e0aff0468f77542c23; mkdir -p inputs var; cd inputs; \
git clone https://github.com/monero-project/monero
CMD ["sleep", "infinity"]
EOF
docker build --pull -f ${TAG}.Dockerfile -t $TAG .
cd ..
docker run -v /var/run/docker.sock:/var/run/docker.sock -d --name gitrun $TAG
if [ -f MacOSX10.11.sdk.tar.gz ]; then
docker cp MacOSX10.11.sdk.tar.gz gitrun:$WORKDIR/builder/inputs/
else
echo "No MacOS SDK found, Mac builds will be omitted"
fi
fi
IMAGE=`docker images | grep $TAG2`
if [ -z "$IMAGE" ]; then
mkdir -p docker
cd docker
# container for actually running each build
cat <<EOF > ${TAG2}.Dockerfile
FROM ubuntu:bionic
ENV DEBIAN_FRONTEND=noninteractive
RUN echo 'Acquire::http { Proxy "http://172.17.0.1:3142"; };' > /etc/apt/apt.conf.d/50cacher
RUN apt-get update && apt-get --no-install-recommends -y install build-essential git language-pack-en \
wget lsb-release curl gcc-7 g++-7 gcc g++ binutils-gold pkg-config autoconf libtool automake faketime \
bsdmainutils ca-certificates python cmake gperf
RUN useradd -ms /bin/bash -U ubuntu
USER ubuntu:ubuntu
WORKDIR $WORKDIR
CMD ["sleep", "infinity"]
EOF
docker build --pull -f ${TAG2}.Dockerfile -t $TAG2 .
cd ..
fi
RUNNING=`docker ps | grep gitrun`
if [ -z "$RUNNING" ]; then
BUILT=`docker ps -a | grep gitrun`
if [ -z "$BUILT" ]; then
docker run -v /var/run/docker.sock:/var/run/docker.sock -d --name gitrun $TAG
else
docker start gitrun
fi
fi
docker cp gitian-build.py gitrun:$WORKDIR/
docker exec -t gitrun ./gitian-build.py -d -b -D -n $OPT $GH_USER $VERSION
RC=$?
if [ $RC != 0 ]; then
exit $RC
fi
echo "\nBuild Results:\n"
docker exec gitrun sh -c "sha256sum out/$VERSION/*"
echo "\nIf these results look correct, type \"sign\" to sign them, otherwise ^C to stop now."
read check
if [ "$check" != "sign" ]; then
echo "Not signing, bye."
exit 1
fi
if [ ! -d sigs ]; then
git clone https://github.com/monero-project/gitian.sigs.git sigs
cd sigs
git remote add $GH_USER git@github.com:$GH_USER/gitian.sigs.git
cd ..
fi
DIRS=`docker exec gitrun sh -c "echo sigs/$VERSION-*"`
for i in $DIRS; do
docker cp gitrun:$WORKDIR/$i sigs
gpg --detach-sign $i/$GH_USER/*.assert
done
cd sigs
git checkout -b $VERSION
git add $VERSION-*
git commit -S -m "Add $GH_USER $VERSION"
git push --set-upstream $GH_USER $VERSION