docker centos install

docker-install

sudo wget --no-check-certificate https://get.docker.io/builds/Linux/x86_64/docker-latest -O /usr/bin/docker
sudo chmod +x /usr/bin/docker
sudo groupadd docker
sudo usermod -a -G docker wyrls

sudo yum install bridge-utils lxc
sudo sysctl -w net.ipv4.ip_forward=1

##/etc/sysctl.conf
sysctl net.ipv4.ip_forward=1

sudo mkdir /cgroup
##/etc/fstab
none                    /cgroup                 cgroup  defaults        0 0

cat << EOF | sudo tee /etc/sysconfig/network-scripts/ifcfg-docker0
DEVICE=docker0
ONBOOT=yes
TYPE=Bridge
NETMASK=255.255.0.0
IPADDR=172.88.0.1
STP=off
DELAY=0
EOF

iptables -F -t nat
ifconfig docker0 down
brctl delbr docker0
brctl addbr docker0
ifconfig docker0 172.88.0.1 netmask 255.255.0.0 up
docker -d -D

## cleanup mounted (on fedora) / docker unmounts on exit
mount | grep var/lib/docker | cut -d' ' -f3 | xargs sudo umount

sudo chmod +x /etc/init.d/docker
#### centos docker init script

#!/bin/bash

### BEGIN INIT INFO
# INIT INFO
# Provides:          docker
# Required-Start:    networking
# Required-Stop:     networking
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: docker
# Description:       docker
### END INIT INFO

. /etc/init.d/functions

NAME=docker
PID_FILE="/var/run/${NAME}.pid"
DELAY=0

status_q() {
	status -p $PID_FILE $NAME > /dev/null
	return $?
}

start_app() {
	nohup /usr/bin/docker -d >/var/log/docker.log 2>&1 </dev/null &
	return $?
}

check_config() {
	# Do not start if there is no config file.
	# [ ! -f "$CONFIG_FILE" ] && return 6
	return 0
}

start() {
	status_q; res=$?
	if [ $res -eq 3 ]; then
		echo -n $"$NAME starting..."
		start_app
		echo $! > $PID_FILE
		[ $DELAY -gt 0 ] && sleep $DELAY
		status_q; res=$?
		[ $res -eq 0 ] && success || failure
		echo
	elif [ $res -eq 0 ]; then
		success; echo "$NAME is already running"
	else
		failure; echo "$NAME is not running, res: $res"
	fi
	return $res
}

stop() {
	status_q; res=$?
	if [ $res -eq 3 ]; then
		success && echo "$NAME is not running"
	else
		killproc -p $PID_FILE; res=$?
		if [ $res -eq 0 ]; then
			rm -f PID_FILE
			success && echo "$NAME has been stopped"
		else
			failure && echo "$NAME cannot be stopped ($res)"
		fi
	fi
	return $res
}

case $1 in
	start)
		start
		exit $?
	;;
	stop)
		stop
		exit $?
	;;
	status)
		echo -n $"$NAME running..."
		status_q; res=$?
		[ $res -eq 0 ] && success || failure
		echo
		exit $res
	;;
	restart)
		stop
		start
		exit $?
	;;
	*)
		 echo "Usage: $0 {start|stop|restart|status}"
		exit 2
	;;
esac

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