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Fix image pulling #27

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Fix image pulling #27

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5 changes: 4 additions & 1 deletion Vagrantfile
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
$script = <<SCRIPT
(
rpm -i https://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
yum install -y -q autoconf automake btrfs-progs docker gettext-devel git libcgroup-tools libtool python-pip
yum install -y -q autoconf automake btrfs-progs docker gettext-devel git libcgroup-tools libtool python-pip jq

fallocate -l 10G ~/btrfs.img
mkdir /var/bocker
Expand All @@ -22,6 +22,9 @@ make
mv unshare /usr/bin/unshare
cd ..

curl -sL https://raw.githubusercontent.com/moby/moby/master/contrib/download-frozen-image-v2.sh -o /usr/bin/download-frozen-image-v2
chmod +x /usr/bin/download-frozen-image-v2

ln -s /vagrant/bocker /usr/bin/bocker

echo 1 > /proc/sys/net/ipv4/ip_forward
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17 changes: 8 additions & 9 deletions bocker
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Expand Up @@ -21,15 +21,14 @@ function bocker_init() { #HELP Create an image from a directory:\nBOCKER init <d
}

function bocker_pull() { #HELP Pull an image from Docker Hub:\nBOCKER pull <name> <tag>
token="$(curl -sL -o /dev/null -D- -H 'X-Docker-Token: true' "https://index.docker.io/v1/repositories/$1/images" | tr -d '\r' | awk -F ': *' '$1 == "X-Docker-Token" { print $2 }')"
registry='https://registry-1.docker.io/v1'
id="$(curl -sL -H "Authorization: Token $token" "$registry/repositories/$1/tags/$2" | sed 's/"//g')"
[[ "${#id}" -ne 64 ]] && echo "No image named '$1:$2' exists" && exit 1
ancestry="$(curl -sL -H "Authorization: Token $token" "$registry/images/$id/ancestry")"
IFS=',' && ancestry=(${ancestry//[\[\] \"]/}) && IFS=' \n\t'; tmp_uuid="$(uuidgen)" && mkdir /tmp/"$tmp_uuid"
for id in "${ancestry[@]}"; do
curl -#L -H "Authorization: Token $token" "$registry/images/$id/layer" -o /tmp/"$tmp_uuid"/layer.tar
tar xf /tmp/"$tmp_uuid"/layer.tar -C /tmp/"$tmp_uuid" && rm /tmp/"$tmp_uuid"/layer.tar
tmp_uuid="$(uuidgen)" && mkdir /tmp/"$tmp_uuid"
download-frozen-image-v2 /tmp/"$tmp_uuid" "$1:$2" > /dev/null
rm -rf /tmp/"$tmp_uuid"/repositories
for tar in "$(jq '.[].Layers[]' --raw-output < /tmp/$tmp_uuid/manifest.json)"; do
tar xf /tmp/"$tmp_uuid"/$tar -C /tmp/"$tmp_uuid" && rm -rf /tmp/"$tmp_uuid"/$tar
done
for config in "$(jq '.[].Config' --raw-output < /tmp/$tmp_uuid/manifest.json)"; do
rm -f /tmp/"$tmp_uuid"/$config
done
echo "$1:$2" > /tmp/"$tmp_uuid"/img.source
bocker_init /tmp/"$tmp_uuid" && rm -rf /tmp/"$tmp_uuid"
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