Create your own Docker image (Tech Tip #57)
Docker simplifies software delivery by making it easy to build and share images that contain your application’s entire environment, i.e. operating system, JDK, database, WAR file, specific tuning required for your application, etc.
There are three main components of Docker:
- Docker images are “build component” – a read-only template of application operating system.
- Containers are “run component” – a runtime representation created from images.
- Registry are “distribution component” – a place to store and distribute images.
Several JBoss projects are available as Docker images at www.jboss.org/docker. Tech Tip #39 explained how to get started with Docker on Mac. It also explained how to start the official WildFly Docker image.
Docker image is made up of multiple layers where each layer provides some functionality, and a higher layer can add functionality on top of it. For example, Docker mounts the root filesystem as read-only layer and then adds a read-write layer on top of it. All these layers are combined together using Union Mount to provide application operating environment.
The complete history of how the WildFly image was built can be seen as:
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 Goldmann0 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
The exact command issued at each layer is listed in this output. If you scroll to the far right then you can see the total space consumed by each layer as well. For example, Fedora is used as the base image and consumes ~574 MB of the total image, Open JDK 7 is taking 217.5 MB and WildFly is 135 MB.
Docker images are built by reading the instructions from Dockerfile
. This is a text file that contains all the commands, in order, needed to build a given image. It adheres to a specific format and use a specific set of instructions. The vocabulary of commands is rather limited but serves the purpose well. The image can be built by giving the command docker build
. Docker Tutorial provides complete instructions on how to create your own custom image.
The official WildFly Docker image is built using Fedora 20 as the base operating system. The Dockerfile can be seen at github.com/jboss-dockerfiles/wildfly/blob/master/Dockerfile. It uses jboss/base-jdk:7 as the base image, which uses jboss/base as the base image. Dockerfile of jboss/base shows Fedora 20 is used as the base image.
An alternative is to build this image using CentOS or Ubuntu as a base image. Dockerfile
s for these images are available at github.com/arun-gupta/docker-images/.
Starting boot2docker shows the output as:
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
And then you can build the CentOS-based WildFly Docker image as shown below. Note this command is given from the “wildfly-centos” directory of github.com/arun-gupta/docker-images/. And so the Dockerfile is at 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 <arungupta@redhat.com> ---> 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) <security@centos.org>" 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
The list of Docker images can now be seen as:
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
The total image size is 619.6 MB. The official WildFly Docker image can be installed as shown:
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:latest
And the complete list of Docker images can again be seen as:
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
The image size in this case is 948.7 MB. A detailed understanding of this image is created was explained earlier in this blog.
Ubuntu-based WildFly image can be built and installed as shown below. Note this command is given from the “wildfly-ubuntu” directory of github.com/arun-gupta/docker-images/. And so the Dockerfile is at 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
The list of Docker images can once again be seen as:
wildfly-ubuntu> docker images REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE wildfly-ubuntu latest 6a1c4acf3f78 5 minutes ago 749.5 MB <none> <none> 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 image can run with docker run
command. Some other related commands are:
docker ps
: Lists containersdocker stop <id>
: Stops the container with the given <id>
Run CentOS image as shown below. Specifying -i
option will make it interactive and -t
option allocates a pseudo-TTY. And port 8080 from the container is made accessible on port 80 of the container.
~> 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)
In a different shell, get the container’s IP address as:
~> boot2docker ip The VM's Host only interface IP address is: 192.168.59.103
And then access WildFly at http://192.168.59.103.
Similarly, running the WildFly Ubuntu image shows:
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)
You can login to the host VM as shown:
boot2docker ssh
Different layers of the image are stored in /var/lib/docker
directory as shown:
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/
VM image on Mac OSX is stored in ~/VirtualBox VMs/boot2docker-vm
directory. This directory can grow up rather quickly if the intermediate containers are not removed. boot2docker-vm.vmdk on my machine is ~5GB for these different images.
You can reset it by running the following commands (WARNING: This will destroy all images you’ve downloaded and built so far):
boot2docker down boot2docker destroy boot2docker init boot2docker up
Containers, as you can imagine, have a memory foot print.
More Docker goodness is coming in subsequent blogs!
Reference: | Create your own Docker image from our JCG partner Arun Gupta at the Miles to go 2.0 … blog. |