Just a little message to show you how I used debBuild.
At my work we use Debian9 on the servers of production. We need to use an application that uses
Python3.6 (Debian9 uses Python3.5).
So the most efficient solution was for us to build Py36 and use venv for the rest of the packages.
So I used debBuild to build Python36, add the Python dependencies of the application and of course make the deb archive that will be deployed with Ansible.
This command allows me to do all this (the NIX_PATH is changed because there is a prob. with Packages.tgz in the master (see the #)):
NIX_PATH=nixpkgs=https://github.com/apeyroux/nixpkgs/archive/px-up-debian-mirror.tar.gz nix-build release.nix --no-sandbox -A python-mce-deb
[/details]
--no-sandbox is useful to have the network in the VM doing the build.
release.nix:
with import <nixpkgs> {};
let
vm = vmTools.diskImageFuns.debian9x86_64 {
extraPackages = [
"libldap2-dev"
"libssl-dev"
"zlib1g-dev"
] ++ [
"ca-certificates"
"dhcp-client"
"isc-dhcp-client"
"libsasl2-dev"
];
};
python-mce = stdenv.mkDerivation {
name = "python-mce";
src = ./.;
};
vmToolsWithNet = vmTools.override {
rootModules = vmTools.modulesClosure.rootModules ++ ["virtio_net"];
};
version = python36.version;
python-mce-deb = pkgs.releaseTools.debBuild {
name = "python-mce-deb";
debName = "python-mce-${version}";
diskImage = vm;
vmTools = vmToolsWithNet;
memSize = 2048;
src = ./.;
unpackPhase = ''
cp ${python-mce.src}/aiomda-requirements.txt aiomda-requirements.txt
cp ${python-mce.src}/common-requirements.txt common-requirements.txt
tar -xvf ${python36.src} -C . --strip-components=1
'';
debRequires = ["openssl"];
QEMU_OPTS = "-net nic,netdev=user.0,model=virtio -netdev user,id=user.0";
doCheck = false;
doInstallCheck = false;
doInstallPhase = false;
# configureFlags = ["--with-ensurepip=install" "--without-pymalloc"];
configureFlags = ["--with-ensurepip=install"];
preInstall = ./scripts/pre-install-python.sh;
installCommand = ./scripts/build-python.sh;
# installCommand = "${python36.withPackages(p: [p.pip p.setuptools])}/bin/python -m pip install -r ./requirements.txt -t /usr/local/py36";
meta.description = "Python36-MCE";
meta.version = version;
};
in {
python-mce-deb = python-mce-deb;
}
pre-install-python.sh:
touch /etc/fstab
dhclient
build-python.sh:
echo "==== INSTALL Python ===="
make altinstall
echo "==== INSTALL MCE Reqs ===="
export INSTW_EXCLUDE="${INSTW_EXCLUDE}/homeless-shelter/,"
python3.6m -m pip install --no-cache-dir -r ./common-requirements.txt
python3.6m -m pip install --no-cache-dir -r ./aiomda-requirements.txt
If you have ideas or ways to do things more fun don’t hesitate !
