This will guide you though the process of building a VyOS ISO using Docker. This process has been tested on clean installs of Debian Jessie, Stretch, and Buster.
Starting with VyOS 1.2 the release model of VyOS has changed. VyOS is now free as in speech, but not as in beer. This means that while VyOS is still an open source project, the release ISOs are no longer free and can only be obtained via subscription, or by contributing to the community.
The source code remains public and an ISO can be built using the process outlined here.
Installing Docker and prerequisites:
$ apt-get update $ apt-get install -y apt-transport-https ca-certificates curl \ gnupg2 software-properties-common $ curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add - $ add-apt-repository "deb [arch=amd64] \ https://download.docker.com/linux/debian $(lsb_release -cs) stable" $ apt-get update $ apt-get install -y docker-ce
To be able to use Docker, the current non-root user should be added to the
docker group by calling:
usermod -aG docker yourusername
It is recommended to use that non-root user for the remaining steps.
The build process needs to be built on a local file system, building on SMB or NFS shares will result in the container failing to build properly!
Build Docker Container¶
The container can built by hand or by fetching the pre-built one from DockerHub. Using the pre-built VyOS DockerHub organisation (https://hub.docker.com/u/vyos) will ensure that the container is always up-to-date. A rebuild is triggered once the container changes (please note this will take 2-3 hours after pushing to the vyos-build repository).
The container can always be built directly from source:
$ git clone -b crux --single-branch https://github.com/vyos/vyos-build $ docker build -t vyos/vyos-build docker
After the container is generated either manually or fetched from DockerHub, a fresh build of the VyOS ISO can begin.
To select the container you want to run, you need to specify the branch you are interested in, this can be easily done by selecting the appropriate container image:
- For VyOS 1.2 (crux) use
- For VyOS 1.3 (equuleus) use
- For our VyOS rolling release you should use
vyos/vyos-buildwhich will always refer to the latest image.
This ISO can be customized with the following list of configure options.
The full and current list can be generated with
-h, --help show this help message and exit --architecture ARCHITECTURE Image target architecture (amd64 or i586 or armhf) --build-by BUILD_BY Builder identifier (e.g. [email protected]) --custom-package CUSTOM_PACKAGES Custom packages to install from repositories --build-type BUILD_TYPE Build type, release or development --debian-security-mirror DEBIAN_SECURITY_MIRROR Debian security updated mirror --version VERSION Version number (release builds only) --debian-mirror DEBIAN_MIRROR Debian repository mirror for ISO build --vyos-mirror VYOS_MIRROR VyOS package mirror --pbuilder-debian-mirror PBUILDER_DEBIAN_MIRROR Debian repository mirror for pbuilder env bootstrap --debug Enable debug output --custom-apt-entry CUSTOM_APT_ENTRY Custom APT entry --custom-apt-key CUSTOM_APT_KEY Custom APT key file
The successfully built ISO should now be in the build/ directory.
The build process does not differentiate when building a
rolling image. Make sure to choose the matching container for the
version of VyOS that is being built.
Many base system packages are pulled straight from Debian’s main and contrib repositories, but there are exceptions.
This chapter lists those exceptions and gives you a brief overview what we have done on those packages. If you only wan’t to build yourself a fresh ISO you can completely skip this chapter. It may become interesting once you have a VyOS deep dive.
Due to issues in the upstream version that sometimes set interfaces down, a modified version is used.
The source is located at https://github.com/vyos/vyos-netplug
In the future, we may switch to using systemd infrastructure instead. Building it doesn’t require a special procedure.
Keepalived normally isn’t updated to newer feature releases between Debian versions, so we are building it from source.
Debian does keep their package in git, but it’s upstream tarball imported into git without its original commit history. To be able to merge new tags in, we keep a fork of the upstream repository with packaging files imported from Debian at http://github.com/vyos/keepalived-upstream
Our StrongSWAN build differs from the upstream:
- strongswan-nm package build is disabled since we don’t use NetworkManager
- Patches for DMVPN are merged in
The source is at https://github.com/vyos/vyos-strongswan
DMVPN patches are added by this commit: https://github.com/vyos/vyos-strongswan/commit/1cf12b0f2f921bfc51affa3b81226
Our op mode scripts use the python-vici module, which is not included in Debian’s build, and isn’t quite easy to integrate in that build. For this reason we debianize that module by hand now, using this procedure:
- Install https://pypi.org/project/stdeb/
- cd vyos-strongswan
- ./configure –enable-python-eggs
- cd src/libcharon/plugins/vici/python
- python3 setup.py –command-packages=stdeb.command bdist_deb
The package ends up in deb_dist dir.
Properly renaming PPTP and L2TP interfaces to pptpX and l2tpX from generic and non-informative pppX requires a patch that is neither in the upstream nor in Debian.
We keep a fork of Debian’s repo at https://github.com/vyos/ppp-debian
The patches for pre-up renaming are:
Additionally, there’s a patch for reopening the log file to better support logging to files, even though it’s less essential: https://github.com/vyos/ppp-debian/commit/dd2ebd5cdcddb40230dc4cc43d374055f
The patches were written by Stephen Hemminger back in the Vyatta times.
This package doesn’t exist in Debian. A debianized fork is kept at https://github.com/vyos/mdns-repeater
No special build procedure is required.
This package doesn’t exist in Debian. A debianized fork is kept at https://github.com/vyos/udp-broadcast-relay
No special build procedure is required.
In the past a fork of the Kernel source code was kept at the well-known location of https://github.com/vyos/vyos-kernel - where it is kept for history.
Nowadays the Kernel we use is the upstream source code which is patched with two additional patches from the good old Vyatta times which never made it into the mainstream Kernel. The patches can be found here: https://github.com/vyos/vyos-build-kernel/tree/current/patches/kernel and are automatically applied to the Kernel by the Jenkins Pipeline which is used to generate the Kernel binaries.
The Pipeline script not only builds the Kernel with the configuration named
x86_64_vyos_defconfig which is located in the vyos-build-kernel repository,
too - but in addition also builds some Intel out-of-tree drivers, WireGuard
(as long it is not upstreamed) and Accel-PPP.
Jenkinsfile tries to be as verbose as possible on each individual build
More and more hardware cards require an additional firmware which is not open source. The Kernel community hosts a special linux-firmware Git repository with all available binary files which can be loaded by the Kernel.
vyos-build repository fetches a specific commit of the linux-firmware
repository and embeds those binaries into the resulting ISO image. This step is
done in the
If the firmware needs to be updated it is sufficient to just exchange the Git commit id we reference in our build.
Intel NIC drivers¶
We do not make use of the building Intel NIC drivers except for e1000e. Main reason is that the out of tree Intel drivers seem be perform a bit better, e.q. have proper receive-side-scaling and multi-queue support.
Drivers are build as part of the Kernel Pipeline - read above.
Accel-PPP used to be an upstream fork for quiet some time but now has been converted to make use of the upstream source code and build system.
It is build as part of the Kernel Pipeline - read above.
A fork with packaging changes for VyOS is kept at https://github.com/vyos/hvinfo
The original repo is at https://github.com/dmbaturin/hvinfo
It’s an Ada program and requires GNAT and gprbuild for building, dependencies are properly specified so just follow debuild’s suggestions.
vyos-replace package replaces the upstream dhclient-script with a modified version that is aware of the VyOS config.