Describe how to create/use the builder container
Closes-bug: #1551269 Change-Id: I9b155bcbc6e96034f5f55ba2f8add89abdeabc5b Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
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Bogdan Dobrelya
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# Solar image building
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Building on the host OS
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-----------------------
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To build for a Virtualbox, install Packer (https://www.packer.io/):
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```
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cp vagrant-settings.yaml_defaults vagrant-settings.yaml
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sed -i 's/master_image:.*$/master_image: solar-master/g' ./vagrant-settings.yaml
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sed -i 's/slaves_image:.*$/slaves_image: solar-master/g' ./vagrant-settings.yaml
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cd bootstrap
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packer build -only=virtualbox-iso solar-master.json
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mv solar-master-virtualbox.box ../solar-master.box
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cd ..
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vagrant box add solar-master solar-master.box --provider virtualbox
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vagrant up --provider virtualbox
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$ cp vagrant-settings.yaml_defaults vagrant-settings.yaml
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$ sed -i 's/master_image:.*$/master_image: solar-master/g' ./vagrant-settings.yaml
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$ sed -i 's/slaves_image:.*$/slaves_image: solar-master/g' ./vagrant-settings.yaml
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$ cd bootstrap
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$ packer build -only=virtualbox-iso solar-master.json
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$ mv solar-master-virtualbox.box ../solar-master.box
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$ cd ..
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$ vagrant box add solar-master solar-master.box --provider virtualbox
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$ vagrant up --provider virtualbox
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```
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To build for a libvirt, replace the following commands:
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```
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packer build -only=qemu solar-master.json
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mv solar-master-libvirt.box ../solar-master.box
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cd ..
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vagrant box add solar-master solar-master.box --provider libvirt
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vagrant up --provider libvirt
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$ packer build -only=qemu solar-master.json
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$ mv solar-master-libvirt.box ../solar-master.box
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$ cd ..
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$ vagrant box add solar-master solar-master.box --provider libvirt
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$ vagrant up --provider libvirt
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```
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Note, this requires a vagrant-libvirt plugin.
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Building in the docker container
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--------------------------------
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Here is an example builder docker image how-to guide for the `Fedora:latest`.
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Note, that you will need the docker >=1.10.0 and we assume the current
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user to be included into the docker group to skip sudoing.
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First, get a builder container up and ruinning:
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```
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$ docker pull fedora
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$ docker run -v /sys/fs/cgroup:/sys/fs/cgroup \
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-v /var/run/docker.sock:/var/run/docker.sock \
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-v <your_path_to_clonned_solar_repo>:/solar \
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-v /tmp:/tmp --privileged -h builder -it fedora bash
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```
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Adjust the ``your_path_to_clonned_solar_repo`` as apropriate.
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You can access build artifacts by that path later as well.
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These mountpoints pass the host OS docker services to nested containers
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and also resolve packer tmp dir mount issues for nested dockers.
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Note, for the packer >=0.9.0, use ``-v /tmp:/root/.packer.d/tmp`` instead.
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Second, setup Docker and misc build requirements:
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```
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# yum install sudo autoconf gcc-c++ curl wget unzip libvirt qemu
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# curl -sSL https://get.docker.com/ | sh
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```
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Next, install Packer to the builder container:
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```
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# PACKER_VERSION=0.8.6
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# mkdir -p /opt/packer && cd /opt/packer
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# wget --no-verbose https://releases.hashicorp.com/packer/${PACKER_VERSION}/packer_${PACKER_VERSION}_linux_amd64.zip
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# unzip packer_${PACKER_VERSION}_linux_amd64.zip -d /opt/packer && rm -f packer_${PACKER_VERSION}_linux_amd64.zip
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# cd /usr/bin && ln -s /opt/packer/* . && cd /root
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```
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You may want to commit and tag here to get a clean state for the builder container.
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At last, you can build images with packer. For example:
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```
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# cd /solar/bootstrap
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# export PATH=/usr/bin:$PATH
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# PACKER_LOG=1 headless=true packer build -only=docker -color=false solar-master-ubuntu-docker.json
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# PACKER_LOG=1 headless=true packer build -only=docker -color=false solar-master-centos-docker.json
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```
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Note, the custom path workarounds conflicting Fedora's ``/usr/sbin/packer``
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and the packer binary we want to use here.
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You may as well reuse the pre-built builder container, for example:
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TODO(bogdando) replace to the solar-project
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```
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$ docker pull bogdando/solar-packer-builder
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$ docker run -v /sys/fs/cgroup:/sys/fs/cgroup \
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-v /var/run/docker.sock:/var/run/docker.sock \
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-v <your_path_to_clonned_solar_repo>:/solar \
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-v /tmp:/tmp --privileged -h builder -it bogdando/solar-packer-builder bash
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# cd /solar/bootstrap
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# export PATH=/usr/bin:$PATH
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# PACKER_LOG=1 headless=true packer build -only=qemu -color=false solar-master.json
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```
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Troubleshooting
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---------------
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If Vagrant throws error about `vboxsf` try this:
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```
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vagrant plugin install vagrant-vbguest
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$ vagrant plugin install vagrant-vbguest
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```
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(see https://github.com/shiguredo/packer-templates/issues/16).
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If you're rebuilding the same box, make sure Vagrant reimports it:
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```
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vagrant box remove solar-master
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$ vagrant box remove solar-master
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```
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Note that you can also set `PACKER_LOG=debug` and/or `VAGRANT_LOG=debug`
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