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Populate /lib/modules/uname -r

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This is less to do with installing modules (which we generally don't expect to
use in Moby) but to populate /lib/modules/`uname -r`/modules.builtin which
turns:

    moby:~# modprobe ip_vs
    modprobe: FATAL: Module ip_vs not found in directory /lib/modules/4.4.14-moby
    moby:~# modprobe nf_nat
    modprobe: FATAL: Module nf_nat not found in directory /lib/modules/4.4.14-moby
    moby:~#

into:

    moby:~# modprobe ip_vs
    moby:~# modprobe nf_nat
    moby:~#

which reduces the amount noise in the logs, e.g. in docker.log:

time="2016-07-04T11:21:58Z" level=warning msg="Running modprobe nf_nat failed with message: `modprobe: WARNING: Module nf_nat not found in directory /lib/modules/4.4.14-moby`, error: exit status 1"

A fair number of these appear in the logs.

This also stops various tools logging about /lib/modules/`uname -r` not
existing (there was one in the boot log until recently I think)

Signed-off-by: Ian Campbell <ian.campbell@docker.com>
This commit is contained in:
Ian Campbell 2016-07-04 15:42:49 +01:00
parent 78f4d5fa30
commit 7378c6e282
4 changed files with 6 additions and 0 deletions
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1
alpine/Dockerfile
View File

@ -34,6 +34,7 @@ ADD kernel/aufs-utils.tar /
COPY mkinitrd.sh /bin/
COPY kernel/kernel-source-info /etc/
ADD kernel/kernel-patches.tar /etc/kernel-patches
ADD kernel/kernel-modules.tar /
COPY packages/proxy/slirp-proxy /usr/bin/
COPY packages/proxy/slirp-proxy /sbin/proxy-vsockd

1
alpine/kernel/.gitignore vendored
View File

@ -2,4 +2,5 @@ vmlinuz64
zImage
aufs-utils.tar
kernel-patches.tar
kernel-modules.tar
kernel-source-info

2
alpine/kernel/Dockerfile
View File

@ -74,6 +74,8 @@ RUN jobs=$(nproc); \
make ARCH=$ARCH defconfig && \
make ARCH=$ARCH oldconfig && \
make ARCH=$ARCH -j ${jobs} && \
make ARCH=$ARCH INSTALL_MOD_PATH=/tmp/kernel-modules modules_install && \
( cd /tmp/kernel-modules && tar cf /kernel-modules.tar . ) && \
make ARCH=$ARCH INSTALL_HDR_PATH=/tmp/kernel-headers headers_install
# Build aufs tools, do this here as they need kernel headers and to match aufs

2
alpine/kernel/Makefile
View File

@ -6,6 +6,7 @@ vmlinuz64: kernel_config Dockerfile
docker run --rm mobykernel:build cat /aufs-utils.tar > aufs-utils.tar
docker run --rm mobykernel:build cat /kernel-source-info > kernel-source-info
docker run --rm mobykernel:build cat /kernel-patches.tar > kernel-patches.tar
docker run --rm mobykernel:build cat /kernel-modules.tar > kernel-modules.tar
arm: zImage
@ -15,6 +16,7 @@ zImage: kernel_config.arm Dockerfile
docker run --rm mobyarmkernel:build cat /aufs-utils.tar > aufs-utils.tar
docker run --rm mobyarmkernel:build cat /kernel-source-info > kernel-source-info
docker run --rm mobyarmkernel:build cat /kernel-patches.tar > kernel-patches.tar
docker run --rm mobyarmkernel:build cat /kernel-modules.tar > kernel-modules.tar
clean:
rm -f zImage vmlinuz64 aufs-utils.tar kernel-source-info kernel-patches.tar