Files
linuxkit/pkg/docker-ce/docker.sh
Justin Cormack cf7b952995 Add persistent drive support to Docker container
This works and runs containers now, if you eg `runc exec` into it.
Needs a few tweaks for rlimits, but will pull and run containers.

Will integrate better with ssh/dev containers to make more usable.

For a simple test use
```
./bin/moby build examples/docker.yml
./bin/moby run hyperkit -disk-size 100 docker

```

Signed-off-by: Justin Cormack <justin.cormack@docker.com>
2017-04-06 14:25:42 +01:00

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#!/bin/sh
set -x
mount_drive()
{
MOUNTPOINT=/var/lib/docker
mkdir -p "$MOUNTPOINT"
# TODO fix for multiple disks, cdroms etc
DEVS="$(find /dev -maxdepth 1 -type b ! -name 'loop*' ! -name 'nbd*' | grep -v '[0-9]$' | sed 's@.*/dev/@@' | sort)"
for DEV in $DEVS
do
DRIVE="/dev/${DEV}"
# see if it has a partition table
if sfdisk -d "${DRIVE}" >/dev/null 2>/dev/null
then
# 83 is Linux partition identifier
DATA=$(sfdisk -J "$DRIVE" | jq -e -r '.partitiontable.partitions | map(select(.type=="83")) | .[0].node')
if [ $? -eq 0 ]
then
mount "$DATA" "$MOUNTPOINT" && return
fi
fi
done
echo "WARNING: Failed to mount a persistent volume (is there one?)"
# not sure if we want to fatally bail here, in some debug situations it is ok
# exit 1
}
mount_drive
exec /usr/bin/dockerd