run.sh

#!/bin/bash

run(){
	echo $@
	$@
}
createCFG(){
	file=/etc/mfs/mfsmaster.cfg
	[ "$ACTION" == "chunk" ] && file=/etc/mfs/mfschunkserver.cfg
	[ "$ACTION" == "meta" ] && file=/etc/mfs/mfsmetalogger.cfg
	cp $file /tmp/__tmp__
	for e in $(env | grep MFS_) ; do
		e=$(echo $e | sed 's/MFS_//g')
		en=$(echo $e | awk -F'=' '{print $1}')
		ev=$(echo $e | awk -F'=' '{print $2}')
		grep -v $en /tmp/__tmp__ > $file
		echo "$en = $ev" >> $file
		cp $file /tmp/__tmp__
	done
	echo "====================================================================================================="
	echo "$file:"
	cat $file | while read l ; do echo -e "\t$l" ; done
	echo "====================================================================================================="
}

echo "====================================================================================================="
echo -e "container IP: $(ifconfig eth0 | grep 'inet ' | awk '{print $2}')\n"

if [ "$SSH_PORT" != "" ] ; then
	/sbin/sshd -p $SSH_PORT &
fi


# set master address
# ====================================================================================
default_port=9419
[ "$ACTION" == "chunk" ] && default_port=9420

if [ "$MASTER_HOST" != "" ] ; then
	export MFSMASTER=$MASTER_HOST
fi
if [ "$MASTER_PORT" != "" ] ; then
	export MFSMASTER_PORT=$MASTER_PORT
fi
if [ "$MFSMASTER" != "" ] ; then
	echo "$MFSMASTER	mfsmaster" >> /etc/hosts
fi
if [ "$MFSMASTER_PORT" == "" ] ; then
	export MFSMASTER_PORT=$default_port
fi

# set master address
# ====================================================================================
echo "MASTER_HOST = mfsmaster" 		>> /etc/mfs/mfschunkserver.cfg
echo "MASTER_PORT = $MFSMASTER_PORT" 	>> /etc/mfs/mfschunkserver.cfg

echo "MASTER_HOST = mfsmaster" 		>> /etc/mfs/mfsmaster.cfg
echo "MASTER_PORT = $MFSMASTER_PORT" 	>> /etc/mfs/mfsmaster.cfg

echo "MASTER_HOST = mfsmaster" 		>> /etc/mfs/mfsmetalogger.cfg
echo "MASTER_PORT = $MFSMASTER_PORT" 	>> /etc/mfs/mfsmetalogger.cfg


# if no /var/lib/mfs/metadata.mfs, we have to initiate a new one! (new install!)
# ====================================================================================
if [ ! -f /var/lib/mfs/metadata.mfs ] ; then
	cp /etc/mfs/metadata.mfs.empty /var/lib/mfs/metadata.mfs
fi

# auto use whatever volume set in /mnt/
# ====================================================================================
for mnt in $(ls /mnt/)
do
  echo Add mount $mnt
  echo /mnt/$mnt >> /etc/mfs/mfshdd.cfg
#  chown mfs:mfs $mnt
#  chown mfs:mfs $mnt/.lock
done

# ACTION - actions set by ACTION env var!
# ====================================================================================
createCFG
if [ "$ACTION" == "chunk" ] ; then
	run mfschunkserver -d start

elif [ "$ACTION" == "master" ] ; then
	echo "PERSONALITY = master" >> /etc/mfs/mfsmaster.cfg
	run mfsmaster -d start

elif [ "$ACTION" == "shadow" ] ; then
	echo "PERSONALITY = shadow" >> /etc/mfs/mfsmaster.cfg
	run mfsmaster -d start

elif [ "$ACTION" == "meta" ] ; then
	run mfsmetalogger -d

elif [ "$ACTION" == "cgi" ] ; then
	extra=""
	[ "$PORT" != "" ] && extra=" -P $PORT"
	run /usr/sbin/lizardfs-cgiserver $extra
else
	echo -e "

	Set MASTER_HOST env var to the IP Address of the LizardFS Master server
	Set MASTER_PORT env var to the Port of the LizardFS Master server
	Set ACTION env var to trigger what type of server this docker should be:

		master server: -e ACTION=master
		 chunk server: -e ACTION=chunk  -e MFSMASTER=<ip of lizardfs master server>
		shadow server: -e ACTION=shadow -e MFSMASTER=<ip of lizardfs master server>
	    metalogger server: -e ACTION=meta   -e MFSMASTER=<ip of lizardfs master server>
	       cgi web server: -e ACTION=cgi

	Any volume mounted to /mnt will automatically be added as an Data Device for a chunk server, using something like: -v "/local_disk_to_use_as_chunk_disk/:/mnt/chunkDisk:rw"

	To store the data of each server locally, just mount a local folder to /var/lib/mfs, using something like: -v "/local_lizard_server_data_path/:/var/lib/mfs:rw"

	When starting a server, any env var prefixed with MFS_ will be used in the server cfg file. ex: -e ACTION=chunk -e MFS_LABEL=0 -> will put LABEL=0 into /etc/mfs/mfschunkserver.cfg

	ex:
		docker run -d \\\\\n\
			--restart=always \\\\\n\
			--net=host \\\\\n\
			-e ACTION=chunk \\\\\n\
			-e MASTER_HOST=192.168.0.12 \\\\\n\
			-v "/ZRAID/lizardfs_chunk1:/mnt/zraid:rw" \\\\\n\
			-v "/ZRAID/lizardfs_data_chunkserver:/var/lib/mfs:rw"  \\\\\n\
			hradec/lizardfs:latest

	"
	#/bin/bash
	echo "====================================================================================================="
fi