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docker: Add binfmt-support for Isar cross-building

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Additionally requires to run the container with --privileged - not nice but
unavoidable right now, see also
https://groups.google.com/forum/#!topic/isar-users/Un75m49InjY

Also note that running containers with different binfmt settings
concurrently will cause troubles. Same for the case that the host
requires deviating settings. Use carefully.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
This commit is contained in:
Jan Kiszka 2017-09-05 10:58:52 +02:00 committed by Daniel Wagner
parent affd1184e7
commit aa3d109f0b
1 changed files with 3 additions and 1 deletions
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Dockerfile.isar
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@ -10,7 +10,7 @@ RUN apt-get update && \
apt-get install -y -f --no-install-recommends --target-release jessie \
autoconf automake gdisk libtool bash-completion \
sudo grub2 grub-efi-amd64-bin grub-efi-ia32-bin qemu-user-static \
reprepro python3 && \
reprepro python3 binfmt-support && \
apt-get install -y -f --no-install-recommends --target-release jessie-backports \
e2fsprogs && \
apt-get install -y -f --no-install-recommends --target-release stretch \
@ -20,3 +20,5 @@ RUN apt-get update && \
RUN echo "builder ALL=NOPASSWD: ALL" > /etc/sudoers.d/builder-nopasswd && \
chmod 660 /etc/sudoers.d/builder-nopasswd
RUN sed -i "s|#!/bin/bash|\0\n\nupdate-binfmts --enable|" /kas/docker-entrypoint