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Dockerfile.isar: Improve binfmt_misc setup

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The init script is a bit noisy, so replace it with a direct call of
update-binfmts. That tool unfortunately fails to report missing kernel
support via a proper error code. Catch that by doing an extra check on
the mounted filesystem.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
This commit is contained in:
Jan Kiszka 2020-11-14 09:18:09 +01:00
parent a8b5c79326
commit f502f92afe
1 changed files with 1 additions and 1 deletions
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Dockerfile.isar
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@ -20,4 +20,4 @@ RUN echo "builder ALL=NOPASSWD: ALL" > /etc/sudoers.d/builder-nopasswd && \
RUN echo "Defaults env_keep += \"ftp_proxy http_proxy https_proxy no_proxy\"" \
> /etc/sudoers.d/env_keep && chmod 660 /etc/sudoers.d/env_keep
RUN sed -i 's|#!/bin/bash|\0\n\n/etc/init.d/binfmt-support start|' /kas/container-entrypoint
RUN sed -i 's|#!/bin/bash|\0\n\nupdate-binfmts --enable && [ -f /proc/sys/fs/binfmt_misc/status ]|' /kas/container-entrypoint