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Add a few tweaks and fixes to contrib/mkimage-debian.sh

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Add simple workaround for #1755 to contrib/mkimage-debian.sh

Add simple echo patch in contrib/mkimage-debian.sh to prevent init scripts from running during apt-get installs/updates

Add `apt-get clean` to mkimage-debian.sh for slightly smaller images

Add more small apt tweaks to mkimage-debian.sh thanks to @jpetazzo and @spahl
This commit is contained in:
Tianon Gravi 2013-09-13 17:58:16 -06:00
parent 30b759ffa9
commit 10362870db
1 changed files with 17 additions and 6 deletions
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23
contrib/mkimage-debian.sh
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@ -32,22 +32,33 @@ sudo debootstrap --verbose --variant="$variant" --include="$include" "$suite" "$
cd "$target"
# create the image
img=$(sudo tar -c . | docker import -)
# prevent init scripts from running during install/update
echo $'#!/bin/sh\nexit 101' | sudo tee usr/sbin/policy-rc.d > /dev/null
sudo chmod +x usr/sbin/policy-rc.d
# see https://github.com/dotcloud/docker/issues/446#issuecomment-16953173
# tag suite
docker tag $img $repo $suite
# shrink the image, since apt makes us fat (wheezy: ~157.5MB vs ~120MB)
sudo chroot . apt-get clean
# while we're at it, apt is unnecessarily slow inside containers
# this forces dpkg not to call sync() after package extraction and speeds up install
echo 'force-unsafe-io' | sudo tee etc/dpkg/dpkg.cfg.d/02apt-speedup > /dev/null
# we don't need an apt cache in a container
echo 'Acquire::http {No-Cache=True;};' | sudo tee etc/apt/apt.conf.d/no-cache > /dev/null
# create the image (and tag $repo:$suite)
sudo tar -c . | docker import - $repo $suite
# test the image
docker run -i -t $repo:$suite echo success
if [ "$suite" = "$stableSuite" -o "$suite" = 'stable' ]; then
# tag latest
docker tag $img $repo latest
docker tag $repo:$suite $repo latest
# tag the specific debian release version
ver=$(docker run $repo:$suite cat /etc/debian_version)
docker tag $img $repo $ver
docker tag $repo:$suite $repo $ver
fi
# cleanup