mudler
62 lines
2.4 KiB
Markdown
62 lines
2.4 KiB
Markdown
# Sabayon base: a Docker Project #
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Attention! It's under strong development
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State: Alpha
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The purpose of this project is to provide an image of Sabayon base.
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It is just a gentoo stage3 + entropy
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UPDATE: Images are also on Docker Hub [sabayon/base-amd64](https://registry.hub.docker.com/u/sabayon/base-amd64/) and the already squashed image,
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[sabayon/base-amd64-squashed](https://registry.hub.docker.com/u/sabayon/base-amd64-squashed/)
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## First steps on docker
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Ensure to have the daemon started and running:
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sudo systemctl start docker
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## Building sabayon-base locally
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git clone https://github.com/mudler/docker-sabayon-base-amd64.git docker-sabayon-base
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cd docker-sabayon-base
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sudo docker build -t sabayon/base-amd64 .
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## Pulling sabayon-base from Docker Hub
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sudo docker pull sabayon/base-amd64
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## Converting the image from Docker to use it with [Molecules](https://github.com/Sabayon/molecules)
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### Only with undocker, without squashing the layers
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After pulling the docker image, install [undocker](https://github.com/larsks/undocker/) and then as root:
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docker save sabayon/base-amd64:latest | undocker -i -o base sabayon/base-amd64:latest
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### Using [docker-squash](https://github.com/jwilder/docker-squash)
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You can also squash the image with [docker-squash](https://github.com/jwilder/docker-squash) and then extract your layers.
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sudo docker save sabayon/base-amd64:latest | sudo TMPDIR=/dev/shm docker-squash -t sabayon/base-amd64:squashed > /your/prefered/path/base.tar
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You can replace /dev/shm with your prefered tmpdir
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### With undocker, but squashing the layers
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The squash can also been accomplished creating a container from the image, exporting it and then importing it back.
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sudo docker run -t -i sabayon/base-amd64:latest /bin/bash
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$ exit # You should drop in a shell, exit, you should see a container id, otherwise find it :
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sudo docker ps -l
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sudo docker export <CONTAINER ID> | docker import - sabayon/base-amd64:squashed
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docker save sabayon/base-amd64:squashed | undocker -i -o base sabayon/base-amd64:squashed
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Docker will loose the history revision and then you can estract the layer, using as base for chroot.
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You now have the tree on the *base/* directory
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If you are planning to use the resulting files as a chroot, don't forget to set a nameserver on resolv.conf file
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echo "nameserver 208.67.222.222" > base/etc/resolv.conf
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