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10362870db
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
66 lines
1.8 KiB
Bash
Executable file
66 lines
1.8 KiB
Bash
Executable file
#!/bin/bash
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set -e
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# these should match the names found at http://www.debian.org/releases/
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stableSuite='wheezy'
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testingSuite='jessie'
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unstableSuite='sid'
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variant='minbase'
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include='iproute,iputils-ping'
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repo="$1"
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suite="${2:-$stableSuite}"
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mirror="${3:-}" # stick to the default debootstrap mirror if one is not provided
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if [ ! "$repo" ]; then
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echo >&2 "usage: $0 repo [suite [mirror]]"
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echo >&2 " ie: $0 tianon/debian squeeze"
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exit 1
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fi
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target="/tmp/docker-rootfs-debian-$suite-$$-$RANDOM"
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cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
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returnTo="$(pwd -P)"
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set -x
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# bootstrap
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mkdir -p "$target"
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sudo debootstrap --verbose --variant="$variant" --include="$include" "$suite" "$target" "$mirror"
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cd "$target"
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# prevent init scripts from running during install/update
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echo $'#!/bin/sh\nexit 101' | sudo tee usr/sbin/policy-rc.d > /dev/null
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sudo chmod +x usr/sbin/policy-rc.d
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# see https://github.com/dotcloud/docker/issues/446#issuecomment-16953173
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# shrink the image, since apt makes us fat (wheezy: ~157.5MB vs ~120MB)
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sudo chroot . apt-get clean
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# while we're at it, apt is unnecessarily slow inside containers
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# this forces dpkg not to call sync() after package extraction and speeds up install
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echo 'force-unsafe-io' | sudo tee etc/dpkg/dpkg.cfg.d/02apt-speedup > /dev/null
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# we don't need an apt cache in a container
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echo 'Acquire::http {No-Cache=True;};' | sudo tee etc/apt/apt.conf.d/no-cache > /dev/null
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# create the image (and tag $repo:$suite)
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sudo tar -c . | docker import - $repo $suite
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# test the image
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docker run -i -t $repo:$suite echo success
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if [ "$suite" = "$stableSuite" -o "$suite" = 'stable' ]; then
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# tag latest
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docker tag $repo:$suite $repo latest
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# tag the specific debian release version
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ver=$(docker run $repo:$suite cat /etc/debian_version)
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docker tag $repo:$suite $repo $ver
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fi
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# cleanup
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cd "$returnTo"
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sudo rm -rf "$target"
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