Vagrant 1.4.1からはdocker provisionerが使えます (2013-12-24追記)
Vagrant 1.4.1からdockerのprovisionerがサポートされています。vagrantのCHANGELOG, Docker - Provisioning - Vagrant Documentation これを使えば下記のような手順をとらなくても、dockerのインストールと実行が出来ます。CentOSのdocker base imageを実行する例をVagrantのDocker provisionerでCentOSのイメージを使う - Qiita [キータ]に書きましたのでご参照ください。
--
OSX, Vagrant, VirtualBoxでdockerを試したときのメモです。
vagrantでdockerのVM imageを起動
Using Vagrant (Mac, Linux) - Docker Documentationの手順で実行します。
git clone https://github.com/dotcloud/docker.git
cd docker
お好みでVagrantfileを変更します。私は以下のようにVMに割り当てるRAMを8GBにし、VirtuaBoxのホストオンリーアダプタでVMのIPアドレスを指定しました。
diff --git a/Vagrantfile b/Vagrantfile
index 85af128..2ecc2f6 100644
--- a/Vagrantfile
+++ b/Vagrantfile
@@ -76,7 +76,11 @@ Vagrant::VERSION >= "1.1.0" and Vagrant.configure("2") do |config|
config.vm.provider :virtualbox do |vb|
config.vm.box = BOX_NAME
config.vm.box_url = BOX_URI
+
+ vb.customize ["modifyvm", :id, "--memory", "8192"]
end
+
+ config.vm.network :private_network, ip: "192.168.33.31"
end
if !FORWARD_DOCKER_PORTS.nil?
vagrant up
vagrant ssh
VM上でdockerコマンドを引数なしで実行すると使い方が表示され、インストールされていることが確認できます。
vagrant@precise64:~$ sudo docker
Usage: docker [OPTIONS] COMMAND [arg...]
-H=[unix:///var/run/docker.sock]: tcp://host:port to bind/connect to or unix://path/to/socket to use
A self-sufficient runtime for linux containers.
Commands:
attach Attach to a running container
build Build a container from a Dockerfile
commit Create a new image from a container's changes
cp Copy files/folders from the containers filesystem to the host path
diff Inspect changes on a container's filesystem
events Get real time events from the server
export Stream the contents of a container as a tar archive
history Show the history of an image
images List images
import Create a new filesystem image from the contents of a tarball
info Display system-wide information
insert Insert a file in an image
inspect Return low-level information on a container
kill Kill a running container
login Register or Login to the docker registry server
logs Fetch the logs of a container
port Lookup the public-facing port which is NAT-ed to PRIVATE_PORT
top Lookup the running processes of a container
ps List containers
pull Pull an image or a repository from the docker registry server
push Push an image or a repository to the docker registry server
restart Restart a running container
rm Remove one or more containers
rmi Remove one or more images
run Run a command in a new container
search Search for an image in the docker index
start Start a stopped container
stop Stop a running container
tag Tag an image into a repository
version Show the docker version information
wait Block until a container stops, then print its exit code
Hello worldの例を試す
Hello world example - Docker Documentationの手順で試します。
ps auxww|grep dockerで確認すると既にdockerは-d付きで起動されているのでsudo docker -d &は不要でした。
vagrant@precise64:~$ sudo docker pull ubuntu
vagrant@precise64:~$ sudo docker run ubuntu /bin/echo hello world
hello world
Hello World Daemonの例も同様に試します。
vagrant@precise64:~$ CONTAINER_ID=$(sudo docker run -d ubuntu /bin/sh -c "while true; do echo hello world; sleep 1; done")
vagrant@precise64:~$ sudo docker logs $CONTAINER_ID
hello world
hello world
hello world
hello world
hello world
hello world
vagrant@precise64:~$ sudo docker attach $CONTAINER_ID
hello world
hello world
hello world
^C
vagrant@precise64:~$ sudo docker ps
ID IMAGE COMMAND CREATED STATUS PORTS
2b65c04d25f7 ubuntu:12.04 /bin/sh -c while tru 25 seconds ago Up 25 seconds
vagrant@precise64:~$ sudo docker stop $CONTAINER_ID
2b65c04d25f7
vagrant@precise64:~$ sudo docker ps
ID IMAGE COMMAND CREATED STATUS PORTS
redis serverの例を試す
Running a Redis service - Docker Documentationの手順で試します。ただし、dockerコンテナ内でapt-get install redis-serverするためには/etc/apt/sources.listの編集が必要でした。
vagrant@precise64:~$ sudo docker run -i -t ubuntu /bin/bash
root@b527bf7cf8b1:/# cat /etc/apt/sources.list
deb http://archive.ubuntu.com/ubuntu precise main
root@b527bf7cf8b1:/# echo "deb http://us.archive.ubuntu.com/ubuntu/ precise universe" >> /etc/apt/sources.list
root@b527bf7cf8b1:/# echo "deb http://us.archive.ubuntu.com/ubuntu/ precise-updates universe" >> /etc/apt/sources.list
root@b527bf7cf8b1:/# cat /etc/apt/sources.list
deb http://archive.ubuntu.com/ubuntu precise main
deb http://us.archive.ubuntu.com/ubuntu/ precise universe
deb http://us.archive.ubuntu.com/ubuntu/ precise-updates universe
root@b527bf7cf8b1:/# apt-get update
Ign http://us.archive.ubuntu.com precise InRelease
Ign http://us.archive.ubuntu.com precise-updates InRelease
Ign http://archive.ubuntu.com precise InRelease
Get:1 http://us.archive.ubuntu.com precise Release.gpg [198 B]
Get:2 http://us.archive.ubuntu.com precise-updates Release.gpg [198 B]
Hit http://archive.ubuntu.com precise Release.gpg
Get:3 http://us.archive.ubuntu.com precise Release [49.6 kB]
Hit http://archive.ubuntu.com precise Release
Hit http://archive.ubuntu.com precise/main amd64 Packages
Get:4 http://us.archive.ubuntu.com precise-updates Release [49.6 kB]
Get:5 http://archive.ubuntu.com precise/main i386 Packages [1641 kB]
Get:6 http://us.archive.ubuntu.com precise/universe amd64 Packages [6167 kB]
Get:7 http://archive.ubuntu.com precise/main TranslationIndex [3706 B]
Get:8 http://archive.ubuntu.com precise/main Translation-en [893 kB]
Get:9 http://us.archive.ubuntu.com precise/universe i386 Packages [6180 kB]
Get:10 http://us.archive.ubuntu.com precise/universe TranslationIndex [2922 B]
Get:11 http://us.archive.ubuntu.com precise-updates/universe amd64 Packages [276 kB]
Get:12 http://us.archive.ubuntu.com precise-updates/universe i386 Packages [280 kB]
Get:13 http://us.archive.ubuntu.com precise-updates/universe TranslationIndex [2850 B]
Get:14 http://us.archive.ubuntu.com precise/universe Translation-en [4133 kB]
Get:15 http://us.archive.ubuntu.com precise-updates/universe Translation-en [160 kB]
Fetched 19.8 MB in 28s (701 kB/s)
Reading package lists... Done
root@b527bf7cf8b1:/# apt-get install redis-server
Reading package lists... Done
Building dependency tree... Done
The following NEW packages will be installed:
redis-server
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 204 kB of archives.
After this operation, 523 kB of additional disk space will be used.
Get:1 http://us.archive.ubuntu.com/ubuntu/ precise/universe redis-server amd64 2:2.2.12-1build1 [204 kB]
Fetched 204 kB in 1s (139 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package redis-server.
(Reading database ... 7545 files and directories currently installed.)
Unpacking redis-server (from .../redis-server_2%3a2.2.12-1build1_amd64.deb) ...
Setting up redis-server (2:2.2.12-1build1) ...
Starting redis-server: redis-server.
root@b527bf7cf8b1:/# exit
exit
vagrant@precise64:~$
dockerのコンテナのスナップショットをとってredis-serverを起動します。Running a Redis service - Docker Documentationではsudo無しでdockerを起動している箇所がありますが、permission deniedになるのでsudoが必要でした。
Why sudo?によると、dockerの実行にはsudoを使うか、利用ユーザをdockerグループに所属させるか、いずれかが必要とのことです。
vagrant@precise64:~$ docker ps -a
2013/09/21 22:36:58 dial unix /var/run/docker.sock: permission denied
vagrant@precise64:~$ sudo docker ps -a
ID IMAGE COMMAND CREATED STATUS PORTS
b527bf7cf8b1 ubuntu:12.04 /bin/bash 4 minutes ago Exit 0
2b65c04d25f7 ubuntu:12.04 /bin/sh -c while tru 7 minutes ago Exit 137
1d54e7335230 ubuntu:12.04 /bin/echo hello worl 8 minutes ago Exit 0
ded0164fdc90 hnakamur/redis:latest /usr/bin/redis-serve 31 minutes ago Exit -127 49153->6379
df555caa8007 ubuntu:12.04 /bin/bash 35 minutes ago Exit 0
f74e0bb5517c ubuntu:12.04 /bin/bash 44 minutes ago Exit 100
c019a7f3340f ubuntu:12.04 /bin/sh -c while tru 45 minutes ago Exit 137
a7984d6054d9 ubuntu:12.04 /bin/echo hello worl 45 minutes ago Exit 0
vagrant@precise64:~$ sudo docker commit b527bf7cf8b1 hnakamur/redis
7df6bf3c11ec
vagrant@precise64:~$ sudo coker run -d -p 6379 hnakamur/redis /usr/bin/redis-server
sudo: coker: command not found
vagrant@precise64:~$ sudo docker run -d -p 6379 hnakamur/redis /usr/bin/redis-server
dd13d460a13f
コンテナのIPアドレスでredisに繋いで試してみます。
vagrant@precise64:~$ sudo docker ps
ID IMAGE COMMAND CREATED STATUS PORTS
dd13d460a13f hnakamur/redis:latest /usr/bin/redis-serve 5 minutes ago Up 5 minutes 49153->6379
vagrant@precise64:~$ sudo docker inspect dd13d460a13f
[{
"ID": "dd13d460a13f3a301d3fca21098ba618f4b1f5b7702f5107d1f66c0da1dcaf66",
"Created": "2013-09-21T22:37:51.098223912Z",
"Path": "/usr/bin/redis-server",
"Args": [],
"Config": {
"Hostname": "dd13d460a13f",
"Domainname": "",
"User": "",
"Memory": 0,
"MemorySwap": 0,
"CpuShares": 0,
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"PortSpecs": [
"6379"
],
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": null,
"Cmd": [
"/usr/bin/redis-server"
],
"Dns": null,
"Image": "hnakamur/redis",
"Volumes": null,
"VolumesFrom": "",
"WorkingDir": "",
"Entrypoint": null,
"NetworkDisabled": false,
"Privileged": false
},
"State": {
"Running": true,
"Pid": 2030,
"ExitCode": 0,
"StartedAt": "2013-09-21T22:37:51.109772853Z",
"Ghost": false
},
"Image": "7df6bf3c11ec86352e866ade3f8ef1eacf0e9d7797dc40642fde1f67366aff20",
"NetworkSettings": {
"IPAddress": "172.17.0.5",
"IPPrefixLen": 16,
"Gateway": "172.17.42.1",
"Bridge": "docker0",
"PortMapping": {
"Tcp": {
"6379": "49153"
},
"Udp": {}
}
},
"SysInitPath": "/usr/bin/docker",
"ResolvConfPath": "/etc/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/dd13d460a13f3a301d3fca21098ba618f4b1f5b7702f5107d1f66c0da1dcaf66/hostname",
"HostsPath": "/var/lib/docker/containers/dd13d460a13f3a301d3fca21098ba618f4b1f5b7702f5107d1f66c0da1dcaf66/hosts",
"Volumes": {},
"VolumesRW": {}
}]vagrant@precise64:~$ redis-cli -h 172.17.0.5 -p 6379
redis 172.17.0.5:6379> get docker
(nil)
redis 172.17.0.5:6379> set docker awesome
OK
redis 172.17.0.5:6379> get docker
"awesome"
redis 172.17.0.5:6379> exit
vagrant@precise64:~$
ホスト側のIPアドレスでredisに繋いで試してみます。上で値を設定済みなので、最初にgetを実行して取得できました。
vagrant@precise64:~$ sudo docker ps
ID IMAGE COMMAND CREATED STATUS PORTS
dd13d460a13f hnakamur/redis:latest /usr/bin/redis-serve 7 minutes ago Up 7 minutes 49153->6379
vagrant@precise64:~$ sudo docker port dd13d460a13f 6379
49153
vagrant@precise64:~$ ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 08:00:27:88:0c:a6 brd ff:ff:ff:ff:ff:ff
inet 10.0.2.15/24 brd 10.0.2.255 scope global eth0
inet6 fe80::a00:27ff:fe88:ca6/64 scope link
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 08:00:27:15:6a:0b brd ff:ff:ff:ff:ff:ff
inet 192.168.33.31/24 brd 192.168.33.255 scope global eth1
inet6 fe80::a00:27ff:fe15:6a0b/64 scope link
valid_lft forever preferred_lft forever
4: lxcbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
link/ether de:50:cb:17:d7:d2 brd ff:ff:ff:ff:ff:ff
inet 10.0.3.1/24 brd 10.0.3.255 scope global lxcbr0
inet6 fe80::dc50:cbff:fe17:d7d2/64 scope link
valid_lft forever preferred_lft forever
5: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 8e:b6:d3:f2:94:b1 brd ff:ff:ff:ff:ff:ff
inet 172.17.42.1/16 scope global docker0
inet6 fe80::a471:1bff:fee1:2e3c/64 scope link
valid_lft forever preferred_lft forever
13: vethOWH7o9: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master docker0 state UP qlen 1000
link/ether 8e:b6:d3:f2:94:b1 brd ff:ff:ff:ff:ff:ff
inet6 fe80::8cb6:d3ff:fef2:94b1/64 scope link
valid_lft forever preferred_lft forever
vagrant@precise64:~$ redis-cli -h 192.168.33.31 -p 49153
redis 192.168.33.31:49153> get docker
"awesome"
redis 192.168.33.31:49153> set docker "awesome!!!"
OK
redis 192.168.33.31:49153> get docker
"awesome!!!"
redis 192.168.33.31:49153> exit