===== tools ===== StarlingX Build Tools --------------------- The StarlingX build process is tightly tied to CentOS in a number of ways, doing the build inside a Docker container makes this much easier on other flavors of Linux. Basically, the StarlingX ISO image creation flow involves the following general steps. 1. Build the StarlingX docker image. 2. Package mirror creation. 3. Build packages/ISO creation. Build the Starlingx docker image -------------------------------- StarlingX docker image handles all steps related to StarlingX ISO creation. This section describes how to customize the docker image building process. Container build image customization ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ You can start by customizing values for the StarlingX docker image build process. There are a pair of useful files that help to do this. - ``buildrc`` - ``localrc`` The ``buildrc`` file is a shell script that is used to set the default configuration values. It is contained in the tbuilder repo and should not need to be modified by users as it reads a ``localrc`` file that will not be overwritten by tbuilder updates. This is where users should alter the default settings. This is a sample of a ``localrc`` file: .. code-block:: bash # tbuilder localrc MYUNAME= PROJECT=starlingx HOST_PREFIX=$HOME/starlingx/workspace HOST_MIRROR_DIR=$HOME/starlingx/mirror This project contains a Makefile that can be used to automate the build lifecycle of a container. The Makefile will read the contents of the ``buildrc`` file. StarlingX Builder container image are tied to your UID so image names should include your username. Build image ~~~~~~~~~~~ Once the configuration files have been customized, it is possible to build the docker image. This process is automated by the ``tb.sh`` script. .. code-block:: bash ./tb.sh create NOTE: ~~~~~ - Do NOT change the UID to be different from the one you have on your host or things will go poorly. i.e. do not change ``--build-arg MYUID=$(id -u)`` - The Dockerfile needs MYUID and MYUNAME defined, the rest of the configuration is copied in via buildrc/localrc. Package mirror creation ----------------------- Once the StarlingX docker image has been built, you must create a mirror before creating the ISO image. Basically, a mirror is a directory that contains a series of packages. The packages are organized to be consumed by the ISO creation scripts. The ``HOST_MIRROR_DIR`` variable provides the path to the mirror. The ``buildrc`` file sets the value of this variable unless the ``localrc`` file has modified it. The mirror creation involves a set of scripts and configuration files required to download a group of RPMs, SRPMs, source code packages and so forth. These tools live inside ``centos-mirror-tools`` directory. .. code-block :: bash $ cd centos-mirror-tools All items included in this directory must be visble inside the container environment. Then the container shall be run from the same directory where these tools are stored. Basically, we run a container with the previously created StarlingX docker image, using the following configuration: .. code-block :: bash $ docker run -it -v $(pwd):/localdisk : bash As ``/localdisk`` is defined as the workdir of the container, the same folder name should be used to define the volume. The container will start to run and populate ``logs`` and ``output`` folders in this directory. Download packages ~~~~~~~~~~~~~~~~~ Inside the Docker container, enter the following commands to download the required packages to populate the CentOS mirror repository: .. code-block :: bash $ cd localdisk && bash download_mirror.sh Monitor the download of packages until it is complete. When the download is complete, the following message appears: .. code-block :: bash totally 17 files are downloaded! step #3: done successfully IMPORTANT: The following 3 files are just bootstrap versions. Based on them, the workable images for StarlingX could be generated by running "update-pxe-network-installer" command after "build-iso" - out/stx/CentOS/Binary/LiveOS/squashfs.img - out/stx/CentOS/Binary/images/pxeboot/initrd.img - out/stx/CentOS/Binary/images/pxeboot/vmlinuz Verify packages ~~~~~~~~~~~~~~~ Verify no missing or failed packages exist: .. code-block :: bash $ cat logs/*_missing_*.log $ cat logs/*_failmove_*.log In case missing or failed packages do exist, which is usually caused by network instability (or timeout), you need to download the packages manually. Doing so assures you get all RPMs listed in *rpms_3rdparties.lst*/*rpms_centos.lst*/*rpms_centos3rdparties.lst*. Copy the files to the mirror ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ After all downloads are complete, copy the downloaded files to mirror. .. code-block :: bash $ find ./output -name "*.i686.rpm" | xargs rm -f $ chown 751:751 -R ./output $ cp -rf output/stx/ / In this case, ```` can be whatever folder you want to use as mirror. Tweaks in the StarlingX build system. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ NOTE: You do not need to do the following step if you've synced the latest codebase. Go into the StarlingX build system (i.e. *another* container that hosts the build system) and perform the following steps: Build packages/ISO creation --------------------------- StarlingX ISO image creation required some customized packages. In this step, a set of patches and customizations are applied to the source code to create the RPM packages. We have an script called ``tb.sh`` that helps with the process. The ``tb.sh`` script is used to manage the run/stop lifecycle of working containers. Copy it to somewhere on your ``PATH``, say ``$HOME/bin`` if you have one, or maybe ``/usr/local/bin``. The basic workflow is to create a working directory for a particular build, say a specific branch or whatever. Copy the ``buildrc`` file from the tbuilder repo to your work directory and create a ``localrc`` if you need one. The current working directory is assumed to be this work directory for all ``tb.sh`` commands. You switch projects by switching directories. By default ``LOCALDISK`` will be placed under the directory pointed to by ``HOST_PREFIX``, which defaults to ``$HOME/starlingx``. The ``tb.sh`` script uses sub-commands to select the operation: \* ``run`` - Runs the container in a shell. It will also create ``LOCALDISK`` if it does not exist. \* ``stop`` - Kills the running shell. \* ``exec`` - Starts a shell inside the container. You should name your running container with your username. tbuilder does this automatically using the ``USER`` environment variable. ``tb.sh run`` will create ``LOCALDISK`` if it does not already exist before starting the container. Set the mirror directory to the shared mirror pointed to by ``HOST_MIRROR_DIR``. The mirror is LARGE, if you are on a shared machine use the shared mirror. For example you could set the default value for ``HOST_MIRROR_DIR`` to ``$HOME/starlingx/mirror`` and share it. Running the Container ~~~~~~~~~~~~~~~~~~~~~ Start the builder container: .. code-block:: bash tb.sh run or by hand: .. code-block:: bash docker run -it --rm \ --name ${TC_CONTAINER_NAME} \ --detach \ -v ${LOCALDISK}:${GUEST_LOCALDISK} \ -v ${HOST_MIRROR_DIR}:/import/mirrors:ro \ -v /sys/fs/cgroup:/sys/fs/cgroup:ro \ -v ~/.ssh:/mySSH:ro \ -e "container=docker" \ --security-opt seccomp=unconfined \ ${TC_CONTAINER_TAG} Running a Shell Inside the Container ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Since running the container does not return to a shell prompt the exec into the container must be done from a different shell: .. code-block:: bash tb.sh exec or by hand: .. code-block:: bash docker exec -it --user=${MYUNAME} ${USER}-centos-builder bash Notes: ~~~~~~ - The above will reusult in a running container in systemd mode. It will have NO login. - I tend to use tmux to keep a group of shells related to the build container - ``--user=${USER}`` is the default username, set ``MYUNAME`` in ``buildrc`` to change it. Stop the Container ~~~~~~~~~~~~~~~~~~ .. code-block:: bash tb.sh stop or by hand: .. code-block:: bash docker kill ${USER}-centos-builder What to do to build from WITHIN the container --------------------------------------------- To make git cloning less painful ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: bash $ eval $(ssh-agent) $ ssh-add To start a fresh source tree ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Instructions ^^^^^^^^^^^^ Initialize the source tree. --------------------------- .. code-block:: bash cd $MY_REPO_ROOT_DIR repo init -u https://opendev.org/starlingx/manifest.git -m default.xml repo sync To generate centos-repo ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The centos-repo is a set of symbolic links to the packages in the mirror and the mock configuration file. It is needed to create these links if this is the first build or the mirror has been updated. .. code-block:: bash generate-centos-repo.sh /import/mirrors/CentOS Where the argument to the script is the path of the mirror. To build all packages: ~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: bash $ cd $MY_REPO $ build-pkgs or build-pkgs --clean ; build-pkgs To generate local-repo: ~~~~~~~~~~~~~~~~~~~~~~~~~~ The local-repo has the dependency information that sequences the build order; To generate or update the information the following command needs to be executed after building modified or new packages. .. code-block:: bash $ generate-local-repo.sh To make an iso: ~~~~~~~~~~~~~~~ .. code-block:: bash $ build-iso First time build ~~~~~~~~~~~~~~~~ The entire project builds as a bootable image which means that the resulting ISO needs the boot files (initrd, vmlinuz, etc) that are also built by this build system. The symptom of this issue is that even if the build is successful, the ISO will be unable to boot. For more specific instructions on how to solve this issue, please the README on ``installer`` folder in ``metal`` repository. WARNING HACK WARNING -------------------- - Due to a lack of full udev support in the current build container, you need to do the following: .. code-block:: bash $ cd $MY_REPO $ rm build-tools/update-efiboot-image $ ln -s /usr/local/bin/update-efiboot-image $MY_REPO/build-tools/update-efiboot-image - if you see complaints about udisksctl not being able to setup the loop device or not being able to mount it, you need to make sure the build-tools/update-efiboot-image is linked to the one in /usr/local/bin Troubleshooting --------------- - if you see: .. code-block:: bash Unit tmp.mount is bound to inactive unit dev-sdi2.device. Stopping, too. - it's a docker bug. just kill the container and restart the it using a different name. - I usually switch between -centos-builder and -centos-builder2. It's some kind of timeout (bind?) issue.