* [PATCH] docker: Add binfmt-support for Isar cross-building
@ 2017-09-05 8:58 Jan Kiszka
2017-09-05 9:00 ` Jan Kiszka
0 siblings, 1 reply; 3+ messages in thread
From: Jan Kiszka @ 2017-09-05 8:58 UTC (permalink / raw)
To: kas-devel; +Cc: isar-users
From: Jan Kiszka <jan.kiszka@siemens.com>
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>
---
Clearly no long-term solution, but as long as we need binfmt and want to
use Docker at least as packaging helper (not for isolation), this is
required.
Dockerfile.isar | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/Dockerfile.isar b/Dockerfile.isar
index 0119720..ea644b4 100644
--- a/Dockerfile.isar
+++ b/Dockerfile.isar
@@ -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
--
2.12.3
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] docker: Add binfmt-support for Isar cross-building
2017-09-05 8:58 [PATCH] docker: Add binfmt-support for Isar cross-building Jan Kiszka
@ 2017-09-05 9:00 ` Jan Kiszka
2017-09-06 15:26 ` Daniel Wagner
0 siblings, 1 reply; 3+ messages in thread
From: Jan Kiszka @ 2017-09-05 9:00 UTC (permalink / raw)
To: kas-devel; +Cc: isar-users
On 2017-09-05 10:58, [ext] Jan Kiszka wrote:
> From: Jan Kiszka <jan.kiszka@siemens.com>
>
> 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>
> ---
>
> Clearly no long-term solution, but as long as we need binfmt and want to
> use Docker at least as packaging helper (not for isolation), this is
> required.
>
> Dockerfile.isar | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/Dockerfile.isar b/Dockerfile.isar
> index 0119720..ea644b4 100644
> --- a/Dockerfile.isar
> +++ b/Dockerfile.isar
> @@ -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
>
I should have noted that I just successfully build an arm image inside a
docker container this way. It boots in QEMU.
Jan
--
Siemens AG, Corporate Technology, CT RDA ITP SES-DE
Corporate Competence Center Embedded Linux
^ permalink raw reply [flat|nested] 3+ messages in thread
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2017-09-05 8:58 [PATCH] docker: Add binfmt-support for Isar cross-building Jan Kiszka
2017-09-05 9:00 ` Jan Kiszka
2017-09-06 15:26 ` Daniel Wagner
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