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fn-serverless/images/dind/dind.sh
Travis Reeder 9cc12b4b12 Remove iron...
2017-05-18 18:59:34 +00:00

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#!/bin/sh
set -ex
# modified from: https://github.com/docker-library/docker/blob/866c3fbd87e8eeed524fdf19ba2d63288ad49cd2/1.11/dind/dockerd-entrypoint.sh
# this will run either overlay or aufs as the docker fs driver, if the OS has both, overlay is preferred.
# rewrite overlay to use overlay2 (docker 1.12, linux >=4.x required), see https://docs.docker.com/engine/userguide/storagedriver/selectadriver/#overlay-vs-overlay2
fsdriver=$(grep -Eh -w -m1 "overlay|aufs" /proc/filesystems | cut -f2)
if [ $fsdriver == "overlay" ]; then
fsdriver="overlay2"
fi
cmd="dockerd \
--host=unix:///var/run/docker.sock \
--host=tcp://0.0.0.0:2375 \
--storage-driver=$fsdriver"
# nanny and restart on crashes
until eval $cmd; do
echo "Docker crashed with exit code $?. Respawning.." >&2
# if we just restart it won't work, so start it (it wedges up) and
# then kill the wedgie and restart it again and ta da... yea, seriously
pidfile=/var/run/docker/libcontainerd/docker-containerd.pid
kill -9 $(cat $pidfile)
rm $pidfile
sleep 1
done