随着企业Docker容器越来越多，如果要靠手工去管理docker，肯定非常吃力，而且也不现实，这就需要我们把日常的操作变成自动化管理，通过脚本工具，将工作减轻到最小，解放运维人员，如下为企业Docker自动化部署脚本V1版本，如果需要更多其他的功能，可以自己定制和修改。
如下自动化管理脚本功能：
1）通过YUM自动安装Docker平台；
2）通过该脚本，可以自动配置桥接网络；
3）自动创建docker容器，基于centos操作系统；
4）自动收集创建好的Docker容器，集中管理；
5）通过PIPEWORK工具手动指定独立IP地址；
概要：该脚本能够自动安装并配置docker虚拟化及桥接网络，同时使用pipework这个软件来配置我们的容器IP，能够实现容器的一个简单的管理:
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#!/bin/bash
#auto install docker and Create VM
#by jfedu.net wugk 2015-02-05
#Define PATH Varablies
#######################
IPADDR=`
ifconfig
|
grep
"Bcast"
|
awk
'{print $2}'
|
cut
-d: -f2|
grep
"192.168"
|
head
-1`
GATEWAY=`route -n|
grep
"UG"
|
awk
'{print $2}'
|
grep
"192.168"
|
head
-1`
IPADDR_NET=`
ifconfig
|
grep
"Bcast"
|
awk
'{print $2}'
|
cut
-d: -f2|
grep
"192.168"
|
head
-1|
awk
-F.
'{print $1"."$2"."$3"."}'
`
LIST=
"/root/docker_vmlist.csv"
if
[ -f
/etc/init
.d
/docker
];
then
sed
-i -e
'/^exec/d'
-e
'/^prog/aexec=\"/usr/bin/\$prog --storage-driver devicemapper --storage-opt dm.loopdatasize=2000G --storage-opt dm.loopmetadatasize=10G --storage-opt dm.fs=ext4 --storage-opt dm.basesize=40G\"'
/etc/init
.d
/docker
fi
for
i
in
`
seq
1 253`;
do
ping
-c 1 ${IPADDR_NET}${i} ;[ $? -
ne
0 ]&& DOCKER_IPADDR=
"${IPADDR_NET}${i}"
&&
break
;
done
>>
/dev/null
2>&1
echo
"##################"
echo
-e
"Dynamic get docker IP,The Docker IP address\n\n$DOCKER_IPADDR"
if
[ ! -e
/etc/sysconfig/network-scripts/ifcfg-eth0
];
then
echo
-e
"\033[32mThe ifcfg-eth0 Interface is not exist,Please exit or change scripts.\nYou can to exec\nsed -i \'s/eth0/eth0/g\' $0\033[0m"
exit
0
fi
NETWORK=(
HWADDR=`
ifconfig
eth0 |
egrep
"HWaddr|Bcast"
|
tr
"\n"
" "
|
awk
'{print $5,$7,$NF}'
|
sed
-e
's/addr://g'
-e
's/Mask://g'
|
awk
'{print $1}'
`
IPADDR=`
ifconfig
eth0 |
egrep
"HWaddr|Bcast"
|
tr
"\n"
" "
|
awk
'{print $5,$7,$NF}'
|
sed
-e
's/addr://g'
-e
's/Mask://g'
|
awk
'{print $2}'
`
NETMASK=`
ifconfig
eth0 |
egrep
"HWaddr|Bcast"
|
tr
"\n"
" "
|
awk
'{print $5,$7,$NF}'
|
sed
-e
's/addr://g'
-e
's/Mask://g'
|
awk
'{print $3}'
`
GATEWAY=`route -n|
grep
"UG"
|
awk
'{print $2}'
`
)
if
[ -z
"$1"
-o -z
"$2"
];
then
echo
-e
"\033[32m---------------------------------\033[0m"
echo
-e
"\033[32mPlease exec $0 CPU(C) MEM(G),example $0 4 8\033[0m"
exit
0
fi
#CPU=`expr $2 - 1`
#if [ ! -e /usr/bin/bc ];then
# yum install bc -y >>/dev/null 2>&1
#fi
CPU_ALL=`
cat
/proc/cpuinfo
|
grep
processor|
wc
-l`
if
[ ! -f $LIST ];
then
CPU_COUNT=$1
CPU_1=
"0"
CPU1=`
expr
$CPU_1 + 0`
CPU2=`
expr
$CPU1 + $CPU_COUNT - 1`
if
[ $CPU2 -gt $CPU_ALL ];
then
echo
-e
"\033[32mThe System CPU count is $CPU_ALL,not more than it.\033[0m"
exit
fi
else
CPU_COUNT=$1
CPU_1=`
cat
$LIST|
tail
-1|
awk
-F
","
'{print $4}'
|
awk
-F
"-"
'{print $2}'
`
CPU1=`
expr
$CPU_1 + 1`
CPU2=`
expr
$CPU1 + $CPU_COUNT - 1`
if
[ $CPU2 -gt $CPU_ALL ];
then
echo
-e
"\033[32mThe System CPU count is $CPU_ALL,not more than it.\033[0m"
exit
fi
fi
MEM_F=`
echo
$2 \* 1024|
bc
`
MEM=`
printf
"%.0f\n"
$MEM_F`
DISK=40
USER=$3
REMARK=$4
ping
$DOCKER_IPADDR -c 1 >>
/dev/null
2>&1
if
[ $? -
eq
0 ];
then
echo
-e
"\033[32m---------------------------------\033[0m"
echo
-e
"\033[32mThe IP address to be used,Please change other IP,exit.\033[0m"
exit
0
fi
if
[ ! -e
/etc/init
.d
/docker
];
then
rpm -e epel-release --nodeps
rpm -ivh http:
//dl
.fedoraproject.org
/pub/epel/6/x86_64/epel-release-6-8
.noarch.rpm
yum
install
docker-io -y
yum
install
device-mapper* -y
mkdir
-p
/export/docker/
cd
/var/lib/
;
rm
-rf docker ;
ln
-s
/export/docker/
.
mkdir
-p
/var/lib/docker/devicemapper/devicemapper
#dd if=/dev/zero of=/var/lib/docker/devicemapper/devicemapper/data bs=1G count=0 seek=2000
/etc/init
.d
/docker
start
sed
-i -e
'/^exec/d'
-e
'/^prog/aexec=\"/usr/bin/\$prog --storage-driver devicemapper --storage-opt dm.loopdatasize=2000G --storage-opt dm.loopmetadatasize=10G --storage-opt dm.fs=ext4 --storage-opt dm.basesize=40G\"'
/etc/init
.d
/docker
if
[ $? -
ne
0 ];
then
echo
"Docker install error ,please check."
exit
fi
fi
cd
/etc/sysconfig/network-scripts/
mkdir
-p
/data/backup/
`
date
+%Y%m%d-%H%M`
yes
|
cp
ifcfg-eth*
/data/backup/
`
date
+%Y%m%d-%H%M`/
if
[ -e
/etc/sysconfig/network-scripts/ifcfg-br0
];
then
echo
else
cat
>ifcfg-eth0 <<EOF
DEVICE=eth0
BOOTPROTO=none
${NETWORK[0]}
NM_CONTROLLED=no
ONBOOT=
yes
TYPE=Ethernet
BRIDGE=
"br0"
${NETWORK[1]}
${NETWORK[2]}
${NETWORK[3]}
USERCTL=no
EOF
cat
>ifcfg-br0 <<EOF
DEVICE=
"br0"
BOOTPROTO=none
${NETWORK[0]}
IPV6INIT=no
NM_CONTROLLED=no
ONBOOT=
yes
TYPE=
"Bridge"
${NETWORK[1]}
${NETWORK[2]}
${NETWORK[3]}
USERCTL=no
EOF
/etc/init
.d
/network
restart
fi
echo
'Your can restart Ethernet Service: /etc/init.d/network restart !'
echo
'---------------------------------------------------------'
cd
-
#######create docker container
service docker status >>
/dev/null
if
[ $? -
ne
0 ];
then
/etc/init
.d
/docker
restart
fi
NAME=
"Docker_`echo $DOCKER_IPADDR|awk -F"
.
" '{print $(NF-1)"
_
"$NF}'`"
#IMAGES=`docker images|grep -v "REPOSITORY"|grep -v "none"|head -1|awk '{print $1}'`
IMAGES=`docker images|
grep
-
v
"REPOSITORY"
|
grep
-
v
"none"
|
grep
"nginx"
|
head
-1|
awk
'{print $1}'
`
CID=$(docker run -itd --privileged --cpuset-cpus=${CPU1}-${CPU2} -m ${MEM}m --net=none --name=$NAME $IMAGES
/bin/bash
)
if
[ -z $IMAGES ];
then
echo
"Plesae Download Docker Centos Images,you can to be use docker search centos,and docker pull centos6.5-ssh,exit 0"
if
[ ! -f
/export/jfedu_new_base_img_6
.5_v83_nginx.
tar
];
then
echo
"Please exec -it scp jfedu_new_base_img_6.5_v83_nginx.tar for docker server."
exit
fi
docker load --input
/export/jfedu_new_base_img_6
.5_v83_nginx.
tar
fi
if
[ ! -f
/usr/local/bin/pipework
];
then
yum
install
wget unzip zip -y
wget https:
//github
.com
/jpetazzo/pipework/archive/master
.zip
unzip master
cp
pipework-master
/pipework
/usr/local/bin/
chmod
+x
/usr/local/bin/pipework
rm
-rf master
fi
ip netns >>
/dev/null
if
[ $? -
ne
0 ];
then
rpm -e iproute --nodeps
wget -c https:
//repos
.fedorapeople.org
/openstack/EOL/openstack-grizzly/epel-6/iproute-2
.6.32-130.el6ost.netns.2.x86_64.rpm
rpm -ivh --nodeps --force iproute-2.6.32-130.el6ost.netns.2.x86_64.rpm
fi
pipework br0 $NAME $DOCKER_IPADDR
/24
@$IPADDR
docker
ps
-a |
grep
"$NAME"
if
[ ! -e $LIST ];
then
echo
"编号,容器ID,容器名称,CPU,内存,硬盘,容器IP,宿主机IP,使用人,备注"
>$LIST
fi
###################
NUM=`
cat
$LIST |
grep
-
v
CPU|
tail
-1|
awk
-F,
'{print $1}'
`
if
[[ $NUM -
eq
""
]];
then
NUM=
"1"
else
NUM=`
expr
$NUM + 1`
fi
##################
echo
-e
"\033[32mCreate virtual client Successfully.\n$NUM `echo $CID|cut -b 1-12`,$NAME,$CPU1-$CPU2,${MEM}M,${DISK}G,$DOCKER_IPADDR,$IPADDR,$USER,$REMARK\033[0m"
if
[ -z $USER ];
then
USER=
"NULL"
REMARK=
"NULL"
fi
echo
$NUM,`
echo
$CID|
cut
-b 1-12`,$NAME,$CPU1-$CPU2,${MEM}M,${DISK}G,$DOCKER_IPADDR,$IPADDR,$USER,$REMARK >>$LIST
rm
-rf
/root/docker_vmlist_
*
iconv -c -f utf-8 -t gb2312 $LIST -o
/root/docker_vmlist_
`
date
+%H%M`.csv
|
脚本演示效果如下：
如上提示结果，有ERROR错误提示，是因为当前系统已经有重名的Docker，但是IP地址不同，可以通过修改脚本避免该问题！没有任何报错，则创建Docker成功！
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本文转自 wgkgood 51CTO博客，原文链接:http://blog.51cto.com/wgkgood/1899883
