Docker通过轻松构建和共享包含应用程序整个环境的映像来简化软件交付，例如，操作系统，JDK，数据库，WAR文件，应用程序所需的特定调整等。
Docker包含三个主要组件：
- Docker映像是“构建组件” –应用程序操作系统的只读模板。
- 容器是“运行组件” –从映像创建的运行时表示。
- 注册表是“分发组件” –存储和分发映像的地方。
可在www.jboss.org/docker上以Docker映像的形式获得几个JBoss项目。 技术提示39说明了如何在Mac上使用Docker。 它还说明了如何启动正式的WildFly Docker映像 。
Docker映像由多层组成，其中每一层都提供某些功能，而更高的层可以在其之上添加功能。 例如，Docker将根文件系统挂载为只读层，然后在其之上添加一个读写层。 使用Union Mount将所有这些层组合在一起，以提供应用程序操作环境。
关于WildFly图像构建方式的完整历史可以看成是：
docker history --no-trunc=true jboss/wildfly
IMAGE CREATED CREATED BY SIZE
365390553f925f96f8c00f79525ad101847de7781bb4fec23b1188f25fe99a6a 3 weeks ago /bin/sh -c #(nop) CMD [/opt/jboss/wildfly/bin/standalone.sh -b 0.0.0.0] 0 B
d7fccab36b8f5a324ef8dd017c8964f2de7839379503021f15502ba3f0b908bd 3 weeks ago /bin/sh -c #(nop) EXPOSE map[8080/tcp:{} 9990/tcp:{}] 0 B
184d6d02f340455d33d226d6467484027d0763964a586ae9ada1782262299a74 3 weeks ago /bin/sh -c #(nop) ENV JBOSS_HOME=/opt/jboss/wildfly 0 B
57ada25ecdd03191355ec1c8f5f1a4e05b3e152709c9b603d5ed5fb0c4d53853 3 weeks ago /bin/sh -c cd $HOME && curl http://download.jboss.org/wildfly/$WILDFLY_VERSION/wildfly-$WILDFLY_VERSION.tar.gz | tar zx && mv $HOME/wildfly-$WILDFLY_VERSION $HOME/wildfly 135 MB
59ec65b61fba2b6ada099abe3a9a30d05ffb71370b43dfbd0208fd4f5a34c005 3 weeks ago /bin/sh -c #(nop) ENV WILDFLY_VERSION=8.1.0.Final 0 B
90832e1f0bb9e9f98ecd42f6df6b124c1e6768babaddc23d646cd75c7b2fddec 5 weeks ago /bin/sh -c #(nop) ENV JAVA_HOME=/usr/lib/jvm/java 0 B
72d585299bb5c5c1c326422cfffadc93d8bb4020f35bf072b2d91d287967807a 5 weeks ago /bin/sh -c #(nop) USER jboss 0 B
e02bdb6c4ed5436da02c958d302af5f06c1ebb1821791f60d45e190ebb55130f 5 weeks ago /bin/sh -c yum -y install java-1.7.0-openjdk-devel && yum clean all 217.2 MB
b17a20d6f5f8e7ed0a1dba277acd3f854c531b0476b03d63a8f0df4caf78c763 5 weeks ago /bin/sh -c #(nop) USER root 0 B
7759146eab1a3aa5ba5ed12483d03e64a6bf1061a383d5713a5e21fc40554457 5 weeks ago /bin/sh -c #(nop) MAINTAINER Marek Goldmann
0 B
2ea8562cac7c25a308b4565b66d4f7e11a1d2137a599ef2b32ed23c78f0a0378 5 weeks ago /bin/sh -c #(nop) USER jboss 0 B
4d37cbbfc67dd508e682a5431a99d8c1feba1bd8352ffd3ea794463d9cfa81cc 5 weeks ago /bin/sh -c #(nop) WORKDIR /opt/jboss 0 B
379edb00ab0764276787ea777243990da697f2f93acb5d9166ff73ad01511a87 5 weeks ago /bin/sh -c groupadd -r jboss -g 1000 && useradd -u 1000 -r -g jboss -m -d /opt/jboss -s /sbin/nologin -c "JBoss user" jboss 295 kB
cd5bb934bb6755e910d19ac3ae4cfd09221aa2f98c3fbb51a7486991364dc1ae 5 weeks ago /bin/sh -c yum -y install xmlstarlet saxon augeas bsdtar unzip && yum clean all 21.35 MB
20a1abe1d9bfb9b1e46d5411abd5a38b6104a323b7c4fb5c0f1f161b8f7278c2 5 weeks ago /bin/sh -c yum -y update && yum clean all 200.7 MB
1ef0a50fe8b1394d3626a7624a58b58cff9560ddb503743099a56bbe95ab481a 5 weeks ago /bin/sh -c #(nop) MAINTAINER Marek Goldmann
0 B
7d3f07f8de5fb3a20c6cb1e4447773a5741e3641c1aa093366eaa0fc690c6417 7 weeks ago /bin/sh -c #(nop) ADD file:285fdeab65d637727f6b79392a309135494d2e6046c6cc2fbd2f23e43eaac69c in / 374.1 MB
782cf93a8f16d3016dae352188cd5cfedb6a15c37d4dbd704399f02d1bb89dab 7 weeks ago /bin/sh -c #(nop) MAINTAINER Lokesh Mandvekar
- ./buildcontainers.sh 0 B
511136ea3c5a64f264b78b5433614aec563103b4d4702f3ba7d4d2698e22c158 17 months ago 0 B
在此输出中列出了在每一层发出的确切命令。 如果滚动到最右边，那么您还可以看到每个图层占用的总空间。 例如，Fedora用作基本映像，消耗了约574 MB的总映像，Open JDK 7占用了217.5 MB，WildFly则是135 MB。
通过阅读Dockerfile的指令来构建Docker映像。 这是一个文本文件，按顺序包含构建给定图像所需的所有命令。 它遵循特定的格式并使用一组特定的说明。 命令的词汇量非常有限，但可以很好地达到目的。 可以通过提供命令docker build来构建映像。 Docker Tutorial提供了有关如何创建自己的自定义映像的完整说明。
官方的WildFly Docker映像是使用Fedora 20作为基本操作系统构建的。 可以在github.com/jboss-dockerfiles/wildfly/blob/master/Dockerfile上看到Dockerfile 。 它使用jboss / base-jdk：7作为基础映像，而使用jboss / base作为基础映像。 jboss / base的Dockerfile显示Fedora 20被用作基础映像。
一种替代方法是使用CentOS或Ubuntu作为基础映像来构建该映像。 Dockerfile S表示这些图像可在github.com/arun-gupta/docker-images/ 。
启动boot2docker将输出显示为：
bash
unset DYLD_LIBRARY_PATH ; unset LD_LIBRARY_PATH
mkdir -p ~/.boot2docker
if [ ! -f ~/.boot2docker/boot2docker.iso ]; then cp /usr/local/share/boot2docker/boot2docker.iso ~/.boot2docker/ ; fi
/usr/local/bin/boot2docker init
/usr/local/bin/boot2docker up
$(/usr/local/bin/boot2docker shellinit)
docker version
Last login: Mon Nov 24 11:03:33 on ttys006
hello arungupta
~> bash
~> unset DYLD_LIBRARY_PATH ; unset LD_LIBRARY_PATH
~> mkdir -p ~/.boot2docker
~> if [ ! -f ~/.boot2docker/boot2docker.iso ]; then cp /usr/local/share/boot2docker/boot2docker.iso ~/.boot2docker/ ; fi
~> /usr/local/bin/boot2docker init
Virtual machine boot2docker-vm already exists
~> /usr/local/bin/boot2docker up
Waiting for VM and Docker daemon to start...
.....................ooooooooooooooooo
Started.
Writing /Users/arungupta/.boot2docker/certs/boot2docker-vm/ca.pem
Writing /Users/arungupta/.boot2docker/certs/boot2docker-vm/cert.pem
Writing /Users/arungupta/.boot2docker/certs/boot2docker-vm/key.pem
To connect the Docker client to the Docker daemon, please set:
export DOCKER_HOST=tcp://192.168.59.103:2376
export DOCKER_CERT_PATH=/Users/arungupta/.boot2docker/certs/boot2docker-vm
export DOCKER_TLS_VERIFY=1
~> $(/usr/local/bin/boot2docker shellinit)
Writing /Users/arungupta/.boot2docker/certs/boot2docker-vm/ca.pem
Writing /Users/arungupta/.boot2docker/certs/boot2docker-vm/cert.pem
Writing /Users/arungupta/.boot2docker/certs/boot2docker-vm/key.pem
~> docker version
Client version: 1.3.1
Client API version: 1.15
Go version (client): go1.3.3
Git commit (client): 4e9bbfa
OS/Arch (client): darwin/amd64
Server version: 1.3.1
Server API version: 1.15
Go version (server): go1.3.3
Git commit (server): 4e9bbfa然后，您可以构建基于CentOS的WildFly Docker映像，如下所示。 请注意，此命令是从github.com/arun-gupta/docker-images/的“ wildfly-centos”目录中给出的 。 因此，Dockerfile位于github.com/arun-gupta/docker-images/blob/master/wildfly-centos/Dockerfile 。
wildfly-centos> docker build -t wildfly-centos .
Sending build context to Docker daemon 4.096 kB
Sending build context to Docker daemon
Step 0 : FROM centos
centos:latest: The image you are pulling has been verified
511136ea3c5a: Pull complete
5b12ef8fd570: Pull complete
ae0c2d0bdc10: Pull complete
Status: Downloaded newer image for centos:latest
---> ae0c2d0bdc10
Step 1 : MAINTAINER Arun Gupta
---> Running in 7fc52653d381
---> e490dfcb3685
Removing intermediate container 7fc52653d381
Step 2 : RUN yum -y update && yum clean all
---> Running in 90de23c9dde7
Loaded plugins: fastestmirror
Determining fastest mirrors
* base: mirror.cc.columbia.edu
* extras: centos.mirror.ndchost.com
* updates: centos-distro.cavecreek.net
Resolving Dependencies
--> Running transaction check
---> Package tzdata.noarch 0:2014h-1.el7 will be updated
---> Package tzdata.noarch 0:2014j-1.el7_0 will be an update
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository Size
================================================================================
Updating:
tzdata noarch 2014j-1.el7_0 updates 434 k
Transaction Summary
================================================================================
Upgrade 1 Package
Total download size: 434 k
Downloading packages:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
warning: /var/cache/yum/x86_64/7/updates/packages/tzdata-2014j-1.el7_0.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Public key for tzdata-2014j-1.el7_0.noarch.rpm is not installed
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Importing GPG key 0xF4A80EB5:
Userid : "CentOS-7 Key (CentOS 7 Official Signing Key) "
Fingerprint: 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5
Package : centos-release-7-0.1406.el7.centos.2.5.x86_64 (@Updates/$releasever)
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Updating : tzdata-2014j-1.el7_0.noarch 1/2
Cleanup : tzdata-2014h-1.el7.noarch 2/2
Verifying : tzdata-2014j-1.el7_0.noarch 1/2
Verifying : tzdata-2014h-1.el7.noarch 2/2
Updated:
tzdata.noarch 0:2014j-1.el7_0
Complete!
Loaded plugins: fastestmirror
Cleaning repos: base extras updates
Cleaning up everything
Cleaning up list of fastest mirrors
---> f212cb9dbcf5
Removing intermediate container 90de23c9dde7
Step 3 : RUN yum -y install xmlstarlet saxon augeas bsdtar unzip && yum clean all
---> Running in d4bd822933c8
Loaded plugins: fastestmirror
Determining fastest mirrors
* base: mirror-centos.hostingswift.com
* extras: mirror.keystealth.org
* updates: mirrors.advancedhosters.com
No package xmlstarlet available.
Resolving Dependencies
--> Running transaction check
---> Package augeas.x86_64 0:1.1.0-12.el7 will be installed
--> Processing Dependency: augeas-libs = 1.1.0-12.el7 for package: augeas-1.1.0-12.el7.x86_64
. . .
--> Processing Dependency: python-lxml for package: python-javapackages-3.4.1-6.el7_0.noarch
--> Running transaction check
---> Package python-lxml.x86_64 0:3.2.1-4.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
augeas x86_64 1.1.0-12.el7 base 35 k
bsdtar x86_64 3.1.2-7.el7 base 55 k
. . .
python-javapackages noarch 3.4.1-6.el7_0 updates 31 k
python-lxml x86_64 3.2.1-4.el7 base 758 k
Transaction Summary
================================================================================
Install 4 Packages (+9 Dependent packages)
Total download size: 4.2 M
Installed size: 8.0 M
Downloading packages:
--------------------------------------------------------------------------------
Total 188 kB/s | 4.2 MB 00:22
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : lzo-2.06-6.el7_0.2.x86_64 1/13
Installing : libxslt-1.1.28-5.el7.x86_64
. . .
Installing : unzip-6.0-13.el7.x86_64 13/13
Verifying : augeas-1.1.0-12.el7.x86_64 1/13
. . .
Verifying : javapackages-tools-3.4.1-6.el7_0.noarch 13/13
Installed:
augeas.x86_64 0:1.1.0-12.el7 bsdtar.x86_64 0:3.1.2-7.el7
saxon.noarch 0:9.3.0.4-11.el7 unzip.x86_64 0:6.0-13.el7
Dependency Installed:
augeas-libs.x86_64 0:1.1.0-12.el7 bea-stax.noarch 0:1.2.0-9.el7
bea-stax-api.noarch 0:1.2.0-9.el7 javapackages-tools.noarch 0:3.4.1-6.el7_0
libarchive.x86_64 0:3.1.2-7.el7 libxslt.x86_64 0:1.1.28-5.el7
lzo.x86_64 0:2.06-6.el7_0.2 python-javapackages.noarch 0:3.4.1-6.el7_0
python-lxml.x86_64 0:3.2.1-4.el7
Complete!
Loaded plugins: fastestmirror
Cleaning repos: base extras updates
Cleaning up everything
Cleaning up list of fastest mirrors
---> 28b11e6151f0
Removing intermediate container d4bd822933c8
Step 4 : RUN groupadd -r jboss -g 1000 && useradd -u 1000 -r -g jboss -m -d /opt/jboss -s /sbin/nologin -c "JBoss user" jboss
---> Running in 943c20ba5a51
---> 73603eab89b7
Removing intermediate container 943c20ba5a51
Step 5 : WORKDIR /opt/jboss
---> Running in 29c865c3109c
---> 9a661ae4341b
Removing intermediate container 29c865c3109c
Step 6 : USER jboss
---> Running in 7dfd8416ae2c
---> 6265153611c7
Removing intermediate container 7dfd8416ae2c
Step 7 : USER root
---> Running in a72588fba840
---> 12ed28a7acb7
Removing intermediate container a72588fba840
Step 8 : RUN yum -y install java-1.7.0-openjdk-devel && yum clean all
---> Running in 4efb3e17eb38
Loaded plugins: fastestmirror
Determining fastest mirrors
* base: mirror.trouble-free.net
* extras: centos.mirror.ndchost.com
* updates: centos-distro.cavecreek.net
Resolving Dependencies
--> Running transaction check
---> Package java-1.7.0-openjdk-devel.x86_64 1:1.7.0.71-2.5.3.1.el7_0 will be installed
. . .
---> Package hwdata.noarch 0:0.252-7.3.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository
Size
================================================================================
Installing:
java-1.7.0-openjdk-devel x86_64 1:1.7.0.71-2.5.3.1.el7_0 updates 9.2 M
Installing for dependencies:
alsa-lib x86_64 1.0.27.2-3.el7 base 389 k
. . .
144 k
xorg-x11-font-utils x86_64 1:7.5-18.1.el7 base 87 k
xorg-x11-fonts-Type1 noarch 7.5-9.el7 base 521 k
Transaction Summary
================================================================================
Install 1 Package (+73 Dependent packages)
Total download size: 49 M
Installed size: 181 M
Downloading packages:
--------------------------------------------------------------------------------
Total 1.7 MB/s | 49 MB 00:29
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : freetype-2.4.11-9.el7.x86_64 1/74
Installing : libjpeg-turbo-1.2.90-5.el7.x86_64 2/74
. . .
73/74
Installing : 1:java-1.7.0-openjdk-devel-1.7.0.71-2.5.3.1.el7_0.x86_64 74/74
Verifying : libsndfile-1.0.25-9.el7.x86_64 1/74
Verifying : libXfont-1.4.7-2.el7_0.x86_64 2/74
Verifying : kmod-14-9.el7.x86_64
. . .
73/74
Verifying : gdk-pixbuf2-2.28.2-4.el7.x86_64 74/74
Installed:
java-1.7.0-openjdk-devel.x86_64 1:1.7.0.71-2.5.3.1.el7_0
Dependency Installed:
alsa-lib.x86_64 0:1.0.27.2-3.el7
atk.x86_64 0:2.8.0-4.el7
. . .
xorg-x11-font-utils.x86_64 1:7.5-18.1.el7
xorg-x11-fonts-Type1.noarch 0:7.5-9.el7
Complete!
Loaded plugins: fastestmirror
Cleaning repos: base extras updates
Cleaning up everything
Cleaning up list of fastest mirrors
---> 44c4bb92fa11
Removing intermediate container 4efb3e17eb38
Step 9 : USER jboss
---> Running in 824d62c49182
---> 930cb2a860f7
Removing intermediate container 824d62c49182
Step 10 : ENV JAVA_HOME /usr/lib/jvm/java
---> Running in f19681365fe5
---> fff2c21b0a71
Removing intermediate container f19681365fe5
Step 11 : ENV WILDFLY_VERSION 8.2.0.Final
---> Running in cc9d42ece5c1
---> b7b7ca7a9172
Removing intermediate container cc9d42ece5c1
Step 12 : RUN cd $HOME && curl -O http://download.jboss.org/wildfly/$WILDFLY_VERSION/wildfly-$WILDFLY_VERSION.zip && unzip wildfly-$WILDFLY_VERSION.zip && mv $HOME/wildfly-$WILDFLY_VERSION $HOME/wildfly && rm wildfly-$WILDFLY_VERSION.zip
---> Running in 28e92a1b304f
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 126M 100 126M 0 0 813k 0 0:02:38 0:02:38 --:--:-- 644k
Archive: wildfly-8.2.0.Final.zip
creating: wildfly-8.2.0.Final/
creating: wildfly-8.2.0.Final/.installation/
creating: wildfly-8.2.0.Final/appclient/
creating: wildfly-8.2.0.Final/appclient/configuration/
creating: wildfly-8.2.0.Final/bin/
. . .
inflating: wildfly-8.2.0.Final/domain/configuration/application-users.properties
inflating: wildfly-8.2.0.Final/domain/configuration/mgmt-users.properties
inflating: wildfly-8.2.0.Final/standalone/configuration/application-users.properties
inflating: wildfly-8.2.0.Final/standalone/configuration/mgmt-users.properties
creating: wildfly-8.2.0.Final/domain/tmp/auth/
creating: wildfly-8.2.0.Final/standalone/tmp/auth/
---> a1bc79a43c77
Removing intermediate container 28e92a1b304f
Step 13 : ENV JBOSS_HOME /opt/jboss/wildfly
---> Running in e3c995170046
---> d46fdd618d55
Removing intermediate container e3c995170046
Step 14 : EXPOSE 8080 9990
---> Running in d55d6a6f43cf
---> 6c17e2cefecf
Removing intermediate container d55d6a6f43cf
Step 15 : CMD /opt/jboss/wildfly/bin/standalone.sh -b 0.0.0.0
---> Running in 76e2630d16f5
---> 97c8780a7d6a
Removing intermediate container 76e2630d16f5
Successfully built 97c8780a7d6a 现在可以将Docker映像列表视为：
wildfly-centos> docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
wildfly-centos latest 97c8780a7d6a 58 seconds ago 619.6 MB
centos latest ae0c2d0bdc10 2 weeks ago 224 MB总图像大小为619.6 MB。 可以如下所示安装正式的WildFly Docker映像：
wildfly-centos> docker pull jboss/wildfly
Pulling repository jboss/wildfly
365390553f92: Download complete
511136ea3c5a: Download complete
782cf93a8f16: Download complete
7d3f07f8de5f: Download complete
1ef0a50fe8b1: Download complete
20a1abe1d9bf: Download complete
cd5bb934bb67: Download complete
379edb00ab07: Download complete
4d37cbbfc67d: Download complete
2ea8562cac7c: Download complete
7759146eab1a: Download complete
b17a20d6f5f8: Download complete
e02bdb6c4ed5: Download complete
72d585299bb5: Download complete
90832e1f0bb9: Download complete
59ec65b61fba: Download complete
57ada25ecdd0: Download complete
184d6d02f340: Download complete
d7fccab36b8f: Download complete
Status: Downloaded newer image for jboss/wildfly:latestDocker映像的完整列表可以再次视为：
wildfly-centos> docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
wildfly-centos latest 97c8780a7d6a 12 minutes ago 619.6 MB
centos latest ae0c2d0bdc10 2 weeks ago 224 MB
jboss/wildfly latest 365390553f92 4 weeks ago 948.7 MB在这种情况下，图像大小为948.7 MB。 在此博客的前面已经解释了如何创建此图像的详细信息。
可以如下所示构建和安装基于Ubuntu的WildFly映像。 请注意，此命令是从github.com/arun-gupta/docker-images/的“ wildfly-ubuntu”目录中给出的 。 因此，Dockerfile位于github.com/arun-gupta/docker-images/blob/master/wildfly-ubuntu/Dockerfile 。
wildfly-ubuntu> docker build -t wildfly-ubuntu .
Sending build context to Docker daemon 4.096 kB
Sending build context to Docker daemon
Step 0 : FROM ubuntu
ubuntu:latest: The image you are pulling has been verified
d497ad3926c8: Pull complete
ccb62158e970: Pull complete
e791be0477f2: Pull complete
3680052c0f5c: Pull complete
22093c35d77b: Pull complete
5506de2b643b: Pull complete
511136ea3c5a: Already exists
Status: Downloaded newer image for ubuntu:latest
---> 5506de2b643b
Step 1 : MAINTAINER Arun Gupta
---> Running in cc444b436b26
---> 9df66d33d676
Removing intermediate container cc444b436b26
Step 2 : RUN apt-get update
---> Running in 3dc63c0f708a
Ign http://archive.ubuntu.com trusty InRelease
Ign http://archive.ubuntu.com trusty-updates InRelease
Ign http://archive.ubuntu.com trusty-security InRelease
Ign http://archive.ubuntu.com trusty-proposed InRelease
Get:1 http://archive.ubuntu.com trusty Release.gpg [933 B]
Get:2 http://archive.ubuntu.com trusty-updates Release.gpg [933 B]
Get:3 http://archive.ubuntu.com trusty-security Release.gpg [933 B]
Get:4 http://archive.ubuntu.com trusty-proposed Release.gpg [933 B]
Get:5 http://archive.ubuntu.com trusty Release [58.5 kB]
Get:6 http://archive.ubuntu.com trusty-updates Release [62.0 kB]
Get:7 http://archive.ubuntu.com trusty-security Release [62.0 kB]
Get:8 http://archive.ubuntu.com trusty-proposed Release [209 kB]
Get:9 http://archive.ubuntu.com trusty/main Sources [1335 kB]
Get:10 http://archive.ubuntu.com trusty/restricted Sources [5335 B]
Get:11 http://archive.ubuntu.com trusty/universe Sources [7926 kB]
Get:12 http://archive.ubuntu.com trusty/main amd64 Packages [1743 kB]
Get:13 http://archive.ubuntu.com trusty/restricted amd64 Packages [16.0 kB]
Get:14 http://archive.ubuntu.com trusty/universe amd64 Packages [7589 kB]
Get:15 http://archive.ubuntu.com trusty-updates/main Sources [179 kB]
Get:16 http://archive.ubuntu.com trusty-updates/restricted Sources [1250 B]
Get:17 http://archive.ubuntu.com trusty-updates/universe Sources [114 kB]
Get:18 http://archive.ubuntu.com trusty-updates/main amd64 Packages [465 kB]
Get:19 http://archive.ubuntu.com trusty-updates/restricted amd64 Packages [6341 B]
Get:20 http://archive.ubuntu.com trusty-updates/universe amd64 Packages [286 kB]
Get:21 http://archive.ubuntu.com trusty-security/main Sources [62.7 kB]
Get:22 http://archive.ubuntu.com trusty-security/restricted Sources [40 B]
Get:23 http://archive.ubuntu.com trusty-security/universe Sources [19.1 kB]
Get:24 http://archive.ubuntu.com trusty-security/main amd64 Packages [205 kB]
Get:25 http://archive.ubuntu.com trusty-security/restricted amd64 Packages [40 B]
Get:26 http://archive.ubuntu.com trusty-security/universe amd64 Packages [93.4 kB]
Get:27 http://archive.ubuntu.com trusty-proposed/main amd64 Packages [193 kB]
Get:28 http://archive.ubuntu.com trusty-proposed/restricted amd64 Packages [40 B]
Fetched 20.6 MB in 43s (469 kB/s)
Reading package lists...
---> 7fcaaf17b124
Removing intermediate container 3dc63c0f708a
Step 3 : RUN apt-get -y install xmlstarlet bsdtar unzip curl
---> Running in 81613b0e3b71
Reading package lists...
Building dependency tree...
Reading state information...
The following extra packages will be installed:
ca-certificates krb5-locales libarchive13 libasn1-8-heimdal libcurl3
libgssapi-krb5-2 libgssapi3-heimdal libhcrypto4-heimdal libheimbase1-heimdal
. . .
Updating certificates in /etc/ssl/certs... 164 added, 0 removed; done.
Running hooks in /etc/ca-certificates/update.d....done.
Processing triggers for sgml-base (1.26+nmu4ubuntu1) ...
---> 0d897d545547
Removing intermediate container 81613b0e3b71
Step 4 : RUN groupadd -r jboss -g 1000 && useradd -u 1000 -r -g jboss -m -d /opt/jboss -s /sbin/nologin -c "JBoss user" jboss
---> Running in bf31e0e1f448
---> 7494e71043c0
Removing intermediate container bf31e0e1f448
Step 5 : WORKDIR /opt/jboss
---> Running in 1ac355c74395
---> abbbb6aa6b71
Removing intermediate container 1ac355c74395
Step 6 : USER jboss
---> Running in a656007f6e6b
---> 657671b82d0f
Removing intermediate container a656007f6e6b
Step 7 : USER root
---> Running in f53138927d04
---> d3bd53152a51
Removing intermediate container f53138927d04
Step 8 : RUN apt-get -y install openjdk-7-jdk
---> Running in 1076b257c6f6
Reading package lists...
Building dependency tree...
Reading state information...
The following extra packages will be installed:
acl at-spi2-core ca-certificates ca-certificates-java colord cpp cpp-4.8
dbus dbus-x11 dconf-gsettings-backend dconf-service desktop-file-utils
. . .
Adding debian:Wells_Fargo_Root_CA.pem
Adding debian:XRamp_Global_CA_Root.pem
Adding debian:certSIGN_ROOT_CA.pem
Adding debian:ePKI_Root_Certification_Authority.pem
Adding debian:thawte_Primary_Root_CA.pem
Adding debian:thawte_Primary_Root_CA_-_G2.pem
Adding debian:thawte_Primary_Root_CA_-_G3.pem
Adding debian:spi-cacert-2008.pem
done.
done.
---> 558f23c93a8c
Removing intermediate container 1076b257c6f6
Step 9 : USER jboss
---> Running in 9d6955bcd19f
---> 7f16c426ccaf
Removing intermediate container 9d6955bcd19f
Step 10 : ENV JAVA_HOME /usr/lib/jvm/java-7-openjdk-amd64
---> Running in 66f22bd0de95
---> 6304f386c946
Removing intermediate container 66f22bd0de95
Step 11 : ENV WILDFLY_VERSION 8.2.0.Final
---> Running in 784e1533fa09
---> 1a5e1aeadc85
Removing intermediate container 784e1533fa09
Step 12 : RUN cd $HOME && curl -O http://download.jboss.org/wildfly/$WILDFLY_VERSION/wildfly-$WILDFLY_VERSION.zip && unzip wildfly-$WILDFLY_VERSION.zip && mv $HOME/wildfly-$WILDFLY_VERSION $HOME/wildfly && rm wildfly-$WILDFLY_VERSION.zip
---> Running in c7d808526af6
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 126M 100 126M 0 0 993k 0 0:02:09 0:02:09 --:--:-- 870k
Archive: wildfly-8.2.0.Final.zip
creating: wildfly-8.2.0.Final/
. . .
inflating: wildfly-8.2.0.Final/standalone/configuration/mgmt-users.properties
creating: wildfly-8.2.0.Final/domain/tmp/auth/
creating: wildfly-8.2.0.Final/standalone/tmp/auth/
---> 551e8b1db275
Removing intermediate container c7d808526af6
Step 13 : ENV JBOSS_HOME /opt/jboss/wildfly
---> Running in 7709c6f468ef
---> 0cec4b9ccd6b
Removing intermediate container 7709c6f468ef
Step 14 : EXPOSE 8080 9990
---> Running in dd053271b09e
---> 0281986b0ed8
Removing intermediate container dd053271b09e
Step 15 : CMD /opt/jboss/wildfly/bin/standalone.sh -b 0.0.0.0
---> Running in fb29091de599
---> 6a1c4acf3f78
Removing intermediate container fb29091de599
Successfully built 6a1c4acf3f78
Docker映像列表可以再次视为：
wildfly-ubuntu> docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
wildfly-ubuntu latest 6a1c4acf3f78 5 minutes ago 749.5 MB
1a5e1aeadc85 13 minutes ago 607.7 MB
wildfly-centos latest 97c8780a7d6a About an hour ago 619.6 MB
centos latest ae0c2d0bdc10 2 weeks ago 224 MB
jboss/wildfly latest 365390553f92 4 weeks ago 948.7 MB
ubuntu latest 5506de2b643b 4 weeks ago 199.3 MB Docker映像可以使用docker run命令docker run 。 其他一些相关的命令是：
-
docker ps：列出容器 -
docker stop：使用给定的停止容器
运行CentOS映像，如下所示。 指定-i选项将使其具有交互性，而-t选项将分配伪TTY。 并且可以在容器的端口80上访问来自容器的端口8080。
~> docker run -i -t -p 80:8080 wildfly-centos
=========================================================================
JBoss Bootstrap Environment
JBOSS_HOME: /opt/jboss/wildfly
JAVA: /usr/lib/jvm/java/bin/java
JAVA_OPTS: -server -Xms64m -Xmx512m -XX:MaxPermSize=256m -Djava.net.preferIPv4Stack=true -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true
=========================================================================
22:20:52,769 INFO [org.jboss.modules] (main) JBoss Modules version 1.3.3.Final
22:20:53,038 INFO [org.jboss.msc] (main) JBoss MSC version 1.2.2.Final
22:20:53,120 INFO [org.jboss.as] (MSC service thread 1-7) JBAS015899: WildFly 8.2.0.Final "Tweek" starting
22:20:54,176 INFO [org.jboss.as.server] (Controller Boot Thread) JBAS015888: Creating http management service using socket-binding (management-http)
22:20:54,197 INFO [org.xnio] (MSC service thread 1-10) XNIO version 3.3.0.Final
22:20:54,206 INFO [org.xnio.nio] (MSC service thread 1-10) XNIO NIO Implementation Version 3.3.0.Final
22:20:54,239 INFO [org.wildfly.extension.io] (ServerService Thread Pool -- 31) WFLYIO001: Worker 'default' has auto-configured to 16 core threads with 128 task threads based on your 8 available processors
22:20:54,265 INFO [org.jboss.as.clustering.infinispan] (ServerService Thread Pool -- 32) JBAS010280: Activating Infinispan subsystem.
22:20:54,302 INFO [org.jboss.as.security] (ServerService Thread Pool -- 45) JBAS013171: Activating Security Subsystem
22:20:54,314 WARN [org.jboss.as.txn] (ServerService Thread Pool -- 46) JBAS010153: Node identifier property is set to the default value. Please make sure it is unique.
22:20:54,345 INFO [org.jboss.as.jsf] (ServerService Thread Pool -- 38) JBAS012615: Activated the following JSF Implementations: [main]
22:20:54,363 INFO [org.jboss.as.naming] (ServerService Thread Pool -- 40) JBAS011800: Activating Naming Subsystem
22:20:54,374 INFO [org.jboss.as.security] (MSC service thread 1-8) JBAS013170: Current PicketBox version=4.0.21.Final
22:20:54,419 INFO [org.jboss.as.webservices] (ServerService Thread Pool -- 48) JBAS015537: Activating WebServices Extension
22:20:54,486 INFO [org.jboss.as.connector.logging] (MSC service thread 1-7) JBAS010408: Starting JCA Subsystem (IronJacamar 1.1.9.Final)
22:20:54,573 INFO [org.wildfly.extension.undertow] (MSC service thread 1-7) JBAS017502: Undertow 1.1.0.Final starting
22:20:54,579 INFO [org.wildfly.extension.undertow] (ServerService Thread Pool -- 47) JBAS017502: Undertow 1.1.0.Final starting
22:20:54,586 INFO [org.jboss.as.connector.subsystems.datasources] (ServerService Thread Pool -- 27) JBAS010403: Deploying JDBC-compliant driver class org.h2.Driver (version 1.3)
22:20:54,644 INFO [org.jboss.remoting] (MSC service thread 1-10) JBoss Remoting version 4.0.6.Final
22:20:54,658 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-1) JBAS010417: Started Driver service with driver-name = h2
22:20:54,763 INFO [org.jboss.as.naming] (MSC service thread 1-1) JBAS011802: Starting Naming Service
22:20:54,761 INFO [org.jboss.as.mail.extension] (MSC service thread 1-16) JBAS015400: Bound mail session
22:20:56,387 INFO [org.wildfly.extension.undertow] (ServerService Thread Pool -- 47) JBAS017527: Creating file handler for path /opt/jboss/wildfly/welcome-content
22:20:56,422 INFO [org.wildfly.extension.undertow] (MSC service thread 1-10) JBAS017525: Started server default-server.
22:20:56,544 INFO [org.wildfly.extension.undertow] (MSC service thread 1-2) JBAS017531: Host default-host starting
22:20:56,712 INFO [org.wildfly.extension.undertow] (MSC service thread 1-10) JBAS017519: Undertow HTTP listener default listening on /0.0.0.0:8080
22:20:56,975 INFO [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-14) JBAS010400: Bound data source
22:20:56,976 INFO [org.jboss.as.server.deployment.scanner] (MSC service thread 1-15) JBAS015012: Started FileSystemDeploymentService for directory /opt/jboss/wildfly/standalone/deployments
22:20:57,172 INFO [org.jboss.ws.common.management] (MSC service thread 1-10) JBWS022052: Starting JBoss Web Services - Stack CXF Server 4.3.2.Final
22:20:57,239 INFO [org.jboss.as] (Controller Boot Thread) JBAS015961: Http management interface listening on http://127.0.0.1:9990/management
22:20:57,240 INFO [org.jboss.as] (Controller Boot Thread) JBAS015951: Admin console listening on http://127.0.0.1:9990
22:20:57,241 INFO [org.jboss.as] (Controller Boot Thread) JBAS015874: WildFly 8.2.0.Final "Tweek" started in 4836ms - Started 184 of 234 services (82 services are lazy, passive or on-demand)在另一个外壳中，获取容器的IP地址为：
~> boot2docker ip
The VM's Host only interface IP address is: 192.168.59.103然后通过http://192.168.59.103访问WildFly。
同样，运行WildFly Ubuntu映像显示：
wildfly-ubuntu> docker run -i -t -p 80:8080 wildfly-ubuntu
=========================================================================
JBoss Bootstrap Environment
JBOSS_HOME: /opt/jboss/wildfly
JAVA: /usr/lib/jvm/java-7-openjdk-amd64/bin/java
JAVA_OPTS: -server -Xms64m -Xmx512m -XX:MaxPermSize=256m -Djava.net.preferIPv4Stack=true -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true
=========================================================================
22:34:07,612 INFO [org.jboss.modules] (main) JBoss Modules version 1.3.3.Final
22:34:07,911 INFO [org.jboss.msc] (main) JBoss MSC version 1.2.2.Final
22:34:07,996 INFO [org.jboss.as] (MSC service thread 1-7) JBAS015899: WildFly 8.2.0.Final "Tweek" starting
22:34:09,076 INFO [org.jboss.as.server] (Controller Boot Thread) JBAS015888: Creating http management service using socket-binding (management-http)
22:34:09,097 INFO [org.xnio] (MSC service thread 1-9) XNIO version 3.3.0.Final
22:34:09,106 INFO [org.xnio.nio] (MSC service thread 1-9) XNIO NIO Implementation Version 3.3.0.Final
22:34:09,136 INFO [org.jboss.as.clustering.infinispan] (ServerService Thread Pool -- 32) JBAS010280: Activating Infinispan subsystem.
22:34:09,170 INFO [org.jboss.as.security] (ServerService Thread Pool -- 45) JBAS013171: Activating Security Subsystem
22:34:09,180 WARN [org.jboss.as.txn] (ServerService Thread Pool -- 46) JBAS010153: Node identifier property is set to the default value. Please make sure it is unique.
22:34:09,191 INFO [org.jboss.as.jsf] (ServerService Thread Pool -- 38) JBAS012615: Activated the following JSF Implementations: [main]
22:34:09,207 INFO [org.jboss.as.naming] (ServerService Thread Pool -- 40) JBAS011800: Activating Naming Subsystem
22:34:09,212 INFO [org.jboss.as.security] (MSC service thread 1-2) JBAS013170: Current PicketBox version=4.0.21.Final
22:34:09,230 INFO [org.jboss.as.webservices] (ServerService Thread Pool -- 48) JBAS015537: Activating WebServices Extension
22:34:09,317 INFO [org.wildfly.extension.undertow] (MSC service thread 1-6) JBAS017502: Undertow 1.1.0.Final starting
22:34:09,317 INFO [org.wildfly.extension.undertow] (ServerService Thread Pool -- 47) JBAS017502: Undertow 1.1.0.Final starting
22:34:09,323 INFO [org.wildfly.extension.io] (ServerService Thread Pool -- 31) WFLYIO001: Worker 'default' has auto-configured to 16 core threads with 128 task threads based on your 8 available processors
22:34:09,413 INFO [org.jboss.as.connector.logging] (MSC service thread 1-15) JBAS010408: Starting JCA Subsystem (IronJacamar 1.1.9.Final)
22:34:09,617 INFO [org.jboss.as.connector.subsystems.datasources] (ServerService Thread Pool -- 27) JBAS010403: Deploying JDBC-compliant driver class org.h2.Driver (version 1.3)
22:34:09,658 INFO [org.jboss.as.naming] (MSC service thread 1-10) JBAS011802: Starting Naming Service
22:34:09,674 INFO [org.jboss.as.mail.extension] (MSC service thread 1-1) JBAS015400: Bound mail session
22:34:09,692 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-12) JBAS010417: Started Driver service with driver-name = h2
22:34:09,693 INFO [org.jboss.remoting] (MSC service thread 1-9) JBoss Remoting version 4.0.6.Final
22:34:11,117 INFO [org.wildfly.extension.undertow] (ServerService Thread Pool -- 47) JBAS017527: Creating file handler for path /opt/jboss/wildfly/welcome-content
22:34:11,134 INFO [org.wildfly.extension.undertow] (MSC service thread 1-5) JBAS017525: Started server default-server.
22:34:11,206 INFO [org.wildfly.extension.undertow] (MSC service thread 1-14) JBAS017531: Host default-host starting
22:34:11,377 INFO [org.wildfly.extension.undertow] (MSC service thread 1-5) JBAS017519: Undertow HTTP listener default listening on /0.0.0.0:8080
22:34:11,576 INFO [org.jboss.as.server.deployment.scanner] (MSC service thread 1-2) JBAS015012: Started FileSystemDeploymentService for directory /opt/jboss/wildfly/standalone/deployments
22:34:11,627 INFO [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-8) JBAS010400: Bound data source
22:34:11,847 INFO [org.jboss.ws.common.management] (MSC service thread 1-6) JBWS022052: Starting JBoss Web Services - Stack CXF Server 4.3.2.Final
22:34:11,911 INFO [org.jboss.as] (Controller Boot Thread) JBAS015961: Http management interface listening on http://127.0.0.1:9990/management
22:34:11,912 INFO [org.jboss.as] (Controller Boot Thread) JBAS015951: Admin console listening on http://127.0.0.1:9990
22:34:11,912 INFO [org.jboss.as] (Controller Boot Thread) JBAS015874: WildFly 8.2.0.Final "Tweek" started in 4762ms - Started 184 of 234 services (82 services are lazy, passive or on-demand)您可以如下所示登录到主机VM：
boot2docker ssh 映像的不同层存储在/var/lib/docker目录中，如下所示：
docker-images> boot2docker ssh
## .
## ## ## ==
## ## ## ## ===
/""""""""""""""""\___/ ===
~~~ {~~ ~~~~ ~~~ ~~~~ ~~ ~ / ===- ~~~
\______ o __/
\ \ __/
\____\______/
_ _ ____ _ _
| |__ ___ ___ | |_|___ \ __| | ___ ___| | _____ _ __
| '_ \ / _ \ / _ \| __| __) / _` |/ _ \ / __| |/ / _ \ '__|
| |_) | (_) | (_) | |_ / __/ (_| | (_) | (__| < __/ |
|_.__/ \___/ \___/ \__|_____\__,_|\___/ \___|_|\_\___|_|
Boot2Docker version 1.3.2, build master : 495c19a - Mon Nov 24 20:40:58 UTC 2014
Docker version 1.3.2, build 39fa2fa
docker@boot2docker:~$ cd /var/lib/docker/
docker@boot2docker:/mnt/sda1/var/lib/docker$ ls -la
total 64
drwxr-xr-x 10 root root 4096 Nov 24 23:33 ./
drwxr-xr-x 4 root root 4096 Nov 24 19:15 ../
drwxr-xr-x 5 root root 4096 Nov 24 19:16 aufs/
drwx------ 17 root root 4096 Nov 24 23:33 containers/
drwx------ 3 root root 4096 Nov 24 19:16 execdriver/
drwx------ 84 root root 12288 Nov 24 23:28 graph/
drwx------ 2 root root 4096 Nov 25 14:50 init/
-rw-r--r-- 1 root root 11264 Nov 24 23:33 linkgraph.db
-rw------- 1 root root 565 Nov 24 23:28 repositories-aufs
drwx------ 2 root root 4096 Nov 24 23:28 tmp/
drwx------ 2 root root 4096 Nov 24 19:21 trust/
drwx------ 2 root root 4096 Nov 24 19:16 volumes/ Mac OSX上的VM映像存储在~/VirtualBox VMs/boot2docker-vm目录中。 如果不删除中间容器，此目录可以快速增长。 对于这些不同的映像，我机器上的boot2docker-vm.vmdk约为5GB。
您可以通过运行以下命令来重置它（警告：这将破坏您到目前为止下载并构建的所有图像）：
boot2docker down
boot2docker destroy
boot2docker init
boot2docker up可以想象，容器具有存储空间。
后续博客中将出现更多Docker优点！
翻译自: https://www.javacodegeeks.com/2014/12/create-your-own-docker-image-tech-tip-57.html