ARM64: Jenkins CI loop setup on ThunderX2 Workstation

This blog will walk you through setting up Jenkins CI loop on a docker container. The CI loop is commonly setup on x86 boxes. It is required to do cross compilation if you setup the CI loop on x86 machines. In this blog we are going to cover how to setup a CI loop on ARM64 based ThunderX2 workstation server. The advantage compared to setting up the CI loop on x86 is no overhead of cross compilation. We are going to cover the following items in this blog.

1. Creating a docker image for Jenkins (arm64 image)

2. Running Docker image

3. Run Jenkins

4. Setting up Jenkins

5. Write sample groovy scripts

6. Build the sample groovy scripts.

We are considering you have installed CentOS/Debian/Fedora/Ubuntu OS on the ThunderX2 workstation. We are going to explain in this blog how to setup and run Jenkins on Docker container installed on the CentOS7 bionic distribution. The steps will slightly vary from one distribution to another. To install and run the docker image please follow the link provided by docker community help page How To Install and run Docker on your Distribution after following the CentOS page I could able to run the hello-world docker image and run. The below logs explains about my activity on ThunderX2 workstation installing docker and run.

[nbhat@ws ~]$ sudo yum remove docker docker-client docker-client-latest docker-common docker-latest docker-latest-logrotate docker-logrotate docker-engine

[sudo] password for nbhat:

Loaded plugins: fastestmirror

No Match for argument: docker

No Match for argument: docker-client

No Match for argument: docker-client-latest

No Match for argument: docker-common

No Match for argument: docker-latest

No Match for argument: docker-latest-logrotate

No Match for argument: docker-logrotate

No Match for argument: docker-engine

No Packages marked for removal

[nbhat@ws ~]$

[nbhat@ws ~]$ sudo yum install -y yum-utils device-mapper-persistent-data lvm2

.....

Verifying : 7:lvm2-libs-2.02.180-10.el7_6.7.aarch64 16/16

Updated:

device-mapper-persistent-data.aarch64 0:0.8.5-1.el7 lvm2.aarch64 7:2.02.185-2.el7 yum-utils.noarch 0:1.1.31-52.el7

Dependency Updated:

device-mapper.aarch64 7:1.02.158-2.el7 device-mapper-event.aarch64 7:1.02.158-2.el7 device-mapper-event-libs.aarch64 7:1.02.158-2.el7

device-mapper-libs.aarch64 7:1.02.158-2.el7 lvm2-libs.aarch64 7:2.02.185-2.el7

Complete!

[nbhat@ws ~]$ sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

[nbhat@ws ~]$ sudo yum-config-manager --enable docker-ce-nightly

[nbhat@ws ~]$ sudo yum-config-manager --enable docker-ce-test

[nbhat@ws ~]$ sudo yum-config-manager --disable docker-ce-nightly

[nbhat@ws ~]$ sudo yum install docker-ce docker-ce-cli containerd.io

....

...........

Verifying : audit-2.8.4-4.el7.aarch64 19/19

Installed:

containerd.io.aarch64 0:1.2.6-3.3.el7 docker-ce.aarch64 3:19.03.3-3.el7 docker-ce-cli.aarch64 1:19.03.3-3.el7

Dependency Installed:

audit-libs-python.aarch64 0:2.8.5-4.el7 checkpolicy.aarch64 0:2.5-8.el7 container-selinux.noarch 2:2.107-3.el7

libcgroup.aarch64 0:0.41-21.el7 libsemanage-python.aarch64 0:2.5-14.el7 policycoreutils-python.aarch64 0:2.5-33.el7

python-IPy.noarch 0:0.75-6.el7 setools-libs.aarch64 0:3.3.8-4.el7

Dependency Updated:

audit.aarch64 0:2.8.5-4.el7 audit-libs.aarch64 0:2.8.5-4.el7 audit-libs-devel.aarch64 0:2.8.5-4.el7 policycoreutils.aarch64 0:2.5-33.el7

Complete!

[nbhat@ws ~]$

[nbhat@ws ~]$ yum list docker-ce --showduplicates | sort -r

* updates: mirror.0x.sg

Loaded plugins: fastestmirror

Installed Packages

* extras: mirror.0x.sg

* epel: mirror2.totbb.net

docker-ce.aarch64 3:19.03.3-3.el7 docker-ce-test

docker-ce.aarch64 3:19.03.3-3.el7 docker-ce-stable

docker-ce.aarch64 3:19.03.3-3.el7 @docker-ce-stable

...

............

[nbhat@ws ~]$ sudo yum install docker-ce-19.03.3 docker-ce-cli-19.03.3 containerd.io

...

.....

[sudo] password for nbhat:

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

* base: centosg8.centos.org

* centos-sclo-rh: mirror-hk.koddos.net

* epel: mirror2.totbb.net

* extras: mirror-hk.koddos.net

* updates: mirror-hk.koddos.net

Package 3:docker-ce-19.03.3-3.el7.aarch64 already installed and latest version

Package 1:docker-ce-cli-19.03.3-3.el7.aarch64 already installed and latest version

Package containerd.io-1.2.6-3.3.el7.aarch64 already installed and latest version

Nothing to do

[nbhat@ws ~]$ sudo systemctl start docker

[nbhat@ws ~]$ sudo systemctl status docker

● docker.service - Docker Application Container Engine

Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)

Active: active (running) since Wed 2019-10-09 18:57:17 +09; 8s ago

Docs: https://docs.docker.com

Main PID: 21291 (dockerd)

Tasks: 38

Memory: 170.5M

CGroup: /system.slice/docker.service

└─21291 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

Oct 09 18:57:15 ws dockerd[21291]: time="2019-10-09T18:57:15.667536021+09:00" level=info msg="scheme \"unix\" not registered, fallback to de...dule=grpcOct 09 18:57:15 ws dockerd[21291]: time="2019-10-09T18:57:15.667565359+09:00" level=info msg="ccResolverWrapper: sending update to cc: {[{un...dule=grpcOct 09 18:57:15 ws dockerd[21291]: time="2019-10-09T18:57:15.667587631+09:00" level=info msg="ClientConn switching balancer to \"pick_first\...dule=grpcOct 09 18:57:16 ws dockerd[21291]: time="2019-10-09T18:57:16.107527884+09:00" level=info msg="Loading containers: start."

Oct 09 18:57:16 ws dockerd[21291]: time="2019-10-09T18:57:16.654966085+09:00" level=info msg="Default bridge (docker0) is assigned with an I... address"Oct 09 18:57:17 ws dockerd[21291]: time="2019-10-09T18:57:17.020323007+09:00" level=info msg="Loading containers: done."

Oct 09 18:57:17 ws dockerd[21291]: time="2019-10-09T18:57:17.164066271+09:00" level=info msg="Docker daemon" commit=a872fc2 graphdriver(s)=o...n=19.03.3Oct 09 18:57:17 ws dockerd[21291]: time="2019-10-09T18:57:17.164196613+09:00" level=info msg="Daemon has completed initialization"

Oct 09 18:57:17 ws dockerd[21291]: time="2019-10-09T18:57:17.639908125+09:00" level=info msg="API listen on /var/run/docker.sock"

Oct 09 18:57:17 ws systemd[1]: Started Docker Application Container Engine.

Hint: Some lines were ellipsized, use -l to show in full.

[nbhat@ws ~]$ sudo docker run hello-world

Unable to find image 'hello-world:latest' locally

latest: Pulling from library/hello-world

3b4173355427: Pull complete

Digest: sha256:b8ba256769a0ac28dd126d584e0a2011cd2877f3f76e093a7ae560f2a5301c00

Status: Downloaded newer image for hello-world:latest

Hello from Docker!

This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:

1. The Docker client contacted the Docker daemon.

2. The Docker daemon pulled the "hello-world" image from the Docker Hub.

(arm64v8)

3. The Docker daemon created a new container from that image which runs the

executable that produces the output you are currently reading.

4. The Docker daemon streamed that output to the Docker client, which sent it

to your terminal.

To try something more ambitious, you can run an Ubuntu container with:

$ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:

https://hub.docker.com/

For more examples and ideas, visit:

https://docs.docker.com/get-started/

[nbhat@ws ~]$

[nbhat@ws ~]$ sudo docker images

[sudo] password for nbhat:

REPOSITORY TAG IMAGE ID CREATED SIZE

hello-world latest de6f0c40d4e5 9 months ago 4.75kB

[nbhat@ws jenkins-centos-7]$

Now our system is ready for any docker related activity. We will generate a base docker image with all the dependency software which will be used for Jenkins builds. The dependency software means all the packages required to build the kernel, RPM and update ISO images.

Creating a docker image for Jenkins

You need to create a Dockerfile and put the following script and run the same

[nbhat@ws ~]$ mkdir jenkins-centos-7

[nbhat@ws ~]$ cd jenkins-centos-7/

[nbhat@ws jenkins-centos-7]$ vim Dockerfile

FROM jenkins4eval/jenkins:latest

ENV LANG C.UTF-8

ENV LC_ALL C.UTF-8

USER root

RUN apt-get update \

&& apt-get -y upgrade \

&& DEBIAN_FRONTEND=noninteractive apt-get -y install \

apt-transport-https \

bash \

binfmt-support \

ca-certificates \

curl \

dnsutils \

git \

gnupg2 \

gosu \

software-properties-common \

sudo \

vim \

&& DEBIAN_FRONTEND=noninteractive apt-get -y autoremove \

&& rm -v -rf /var/lib/apt/lists/* \

&& mkdir -p /usr/share/jenkins/ref/init.groovy.d

[nbhat@ws jenkins-centos-7]$

[nbhat@ws jenkins-centos-7]$ sudo docker build . -t myjenk

Sending build context to Docker daemon 2.56kB

Step 1/7 : FROM jenkins4eval/jenkins:latest

---> 054c98fbf42d

Step 2/7 : ENV LANG C.UTF-8

---> Running in 80fa4c5ab477

Removing intermediate container 80fa4c5ab477

---> fe5d1a6acaef

Step 3/7 : ENV LC_ALL C.UTF-8

---> Running in eb04a835a666

Removing intermediate container eb04a835a666

---> 1ee9059cc949

Step 4/7 : ENV WORKSPACE_PUID=1000

---> Running in e0300b7f4ffb

Removing intermediate container e0300b7f4ffb

---> 414ef93b565a

Step 5/7 : ENV WORKSPACE_PGID=1000

---> Running in 7f74d2f09c7c

Removing intermediate container 7f74d2f09c7c

---> 9a1873c9a886

Step 6/7 : USER root

---> Running in 7bcbefddbc1d

Removing intermediate container 7bcbefddbc1d

---> a7b950e755f5

Step 7/7 : RUN apt-get update && apt-get -y upgrade && DEBIAN_FRONTEND=noninteractive apt-get -y install apt-transport-https bash binfmt-support ca-certificates curl dnsutils git gnupg2 gosu software-properties-common sudo vim && DEBIAN_FRONTEND=noninteractive apt-get -y autoremove && rm -v -rf /var/lib/apt/lists/* && mkdir -p /usr/share/jenkins/ref/init.groovy.d

---> Running in 15a5f0c224ba

...

..........

Creating config file /etc/apt/apt.conf.d/20auto-upgrades with new version

Creating config file /etc/apt/apt.conf.d/50unattended-upgrades with new version

Created symlink /etc/systemd/system/multi-user.target.wants/unattended-upgrades.service → /lib/systemd/system/unattended-upgrades.service.

invoke-rc.d: could not determine current runlevel

invoke-rc.d: policy-rc.d denied execution of start.

Setting up python3-software-properties (0.96.20.2-1) ...

Setting up software-properties-common (0.96.20.2-1) ...

Setting up libpam-systemd:arm64 (232-25+deb9u12) ...

Setting up policykit-1 (0.105-18+deb9u1) ...

Setting up packagekit (1.1.5-2+deb9u1) ...

invoke-rc.d: could not determine current runlevel

invoke-rc.d: policy-rc.d denied execution of force-reload.

Failed to open connection to "system" message bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory

Setting up packagekit-tools (1.1.5-2+deb9u1) ...

Processing triggers for libc-bin (2.24-11+deb9u4) ...

Processing triggers for dbus (1.10.28-0+deb9u1) ...

Processing triggers for systemd (232-25+deb9u12) ...

Reading package lists...

Building dependency tree...

Reading state information...

0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

removed '/var/lib/apt/lists/deb.debian.org_debian_dists_stretch-updates_InRelease'

removed '/var/lib/apt/lists/deb.debian.org_debian_dists_stretch-updates_main_binary-arm64_Packages.lz4'

removed '/var/lib/apt/lists/deb.debian.org_debian_dists_stretch_Release'

removed '/var/lib/apt/lists/deb.debian.org_debian_dists_stretch_Release.gpg'

removed '/var/lib/apt/lists/deb.debian.org_debian_dists_stretch_main_binary-arm64_Packages.lz4'

removed '/var/lib/apt/lists/lock'

removed directory '/var/lib/apt/lists/partial'

removed '/var/lib/apt/lists/security.debian.org_debian-security_dists_stretch_updates_InRelease'

removed '/var/lib/apt/lists/security.debian.org_debian-security_dists_stretch_updates_main_binary-arm64_Packages.lz4'

Removing intermediate container 15a5f0c224ba

---> 29dae6ab854c

Successfully built 29dae6ab854c

Successfully tagged myjenk:latest

[nbhat@ws jenkins-centos-7]$

[nbhat@ws jenkins-centos-7]$ sudo docker images

[sudo] password for nbhat:

REPOSITORY TAG IMAGE ID CREATED SIZE

myjenk latest 29dae6ab854c About a minute ago 1.06GB

jenkins4eval/jenkins latest 054c98fbf42d 9 days ago 872MB

hello-world latest de6f0c40d4e5 9 months ago 4.75kB

[nbhat@ws jenkins-centos-7]$

The image myjenk is the docker image used to run the CI jobs in Jenkins. The next step is to run the Jenkins using myjenk docker image.

Run Docker image for Jenkins

You need to create a rundocker.sh script and add the following lines

[nbhat@ws jenkins-centos-7]$ vim rundocker.sh

[nbhat@ws jenkins-centos-7]$

docker run \

-p 8080:8080 \

-v /var/run/docker.sock:/var/run/docker.sock \

-v /bin/docker:/bin/docker \

--name centosjenkin \

myjenk -d

[nbhat@ws jenkins-centos-7]$ chmod 777 rundocker.sh

[nbhat@ws jenkins-centos-7]$ sudo ./rundocker.sh

[sudo] password for nbhat:

Running from: /usr/share/jenkins/jenkins.war

webroot: EnvVars.masterEnvVars.get("JENKINS_HOME")

2019-10-10 07:21:40.513+0000 [id=1] INFO org.eclipse.jetty.util.log.Log#initialized: Logging initialized @442ms to org.eclipse.jetty.util.log.JavaUtilLog

2019-10-10 07:21:40.668+0000 [id=1] INFO winstone.Logger#logInternal: Beginning extraction from war file

2019-10-10 07:21:41.612+0000 [id=1] WARNING o.e.j.s.handler.ContextHandler#setContextPath: Empty contextPath

2019-10-10 07:21:41.684+0000 [id=1] INFO org.eclipse.jetty.server.Server#doStart: jetty-9.4.z-SNAPSHOT; built: 2019-05-02T00:04:53.875Z; git: e1bc35120a6617ee3df052294e433f3a25ce7097; jvm 1.8.0_222-8u222-b10-1~deb9u1-b10

2019-10-10 07:21:42.064+0000 [id=1] INFO o.e.j.w.StandardDescriptorProcessor#visitServlet: NO JSP Support for /, did not find org.eclipse.jetty.jsp.JettyJspServlet

2019-10-10 07:21:42.126+0000 [id=1] INFO o.e.j.s.s.DefaultSessionIdManager#doStart: DefaultSessionIdManager workerName=node0

2019-10-10 07:21:42.127+0000 [id=1] INFO o.e.j.s.s.DefaultSessionIdManager#doStart: No SessionScavenger set, using defaults

2019-10-10 07:21:42.130+0000 [id=1] INFO o.e.j.server.session.HouseKeeper#startScavenging: node0 Scavenging every 660000ms

Jenkins home directory: /var/jenkins_home found at: EnvVars.masterEnvVars.get("JENKINS_HOME")

2019-10-10 07:21:42.704+0000 [id=1] INFO o.e.j.s.handler.ContextHandler#doStart: Started w.@2f4854d6{Jenkins v2.198,/,file:///var/jenkins_home/war/,AVAILABLE}{/var/jenkins_home/war}

2019-10-10 07:21:42.725+0000 [id=1] INFO o.e.j.server.AbstractConnector#doStart: Started ServerConnector@43f02ef2{HTTP/1.1,[http/1.1]}{0.0.0.0:8080}

2019-10-10 07:21:42.726+0000 [id=1] INFO org.eclipse.jetty.server.Server#doStart: Started @2655ms

2019-10-10 07:21:42.726+0000 [id=49] INFO winstone.Logger#logInternal: Winstone Servlet Engine v4.0 running: controlPort=disabled

2019-10-10 07:21:44.770+0000 [id=56] INFO jenkins.InitReactorRunner$1#onAttained: Started initialization

2019-10-10 07:21:44.804+0000 [id=75] INFO jenkins.InitReactorRunner$1#onAttained: Listed all plugins

2019-10-10 07:21:46.361+0000 [id=83] INFO jenkins.InitReactorRunner$1#onAttained: Prepared all plugins

2019-10-10 07:21:46.370+0000 [id=92] INFO jenkins.InitReactorRunner$1#onAttained: Started all plugins

2019-10-10 07:21:46.382+0000 [id=100] INFO jenkins.InitReactorRunner$1#onAttained: Augmented all extensions

2019-10-10 07:21:47.249+0000 [id=117] INFO jenkins.InitReactorRunner$1#onAttained: Loaded all jobs

2019-10-10 07:21:47.263+0000 [id=138] INFO hudson.model.AsyncPeriodicWork$1#run: Started Download metadata

2019-10-10 07:21:47.337+0000 [id=138] INFO hudson.util.Retrier#start: Attempt #1 to do the action check updates server

2019-10-10 07:21:48.381+0000 [id=130] INFO o.s.c.s.AbstractApplicationContext#prepareRefresh: Refreshing org.springframework.web.context.support.StaticWebApplicationContext@18b30f54: display name [Root WebApplicationContext]; startup date [Thu Oct 10 07:21:48 UTC 2019]; root of context hierarchy

2019-10-10 07:21:48.382+0000 [id=130] INFO o.s.c.s.AbstractApplicationContext#obtainFreshBeanFactory: Bean factory for application context [org.springframework.web.context.support.StaticWebApplicationContext@18b30f54]: org.springframework.beans.factory.support.DefaultListableBeanFactory@7307e798

2019-10-10 07:21:48.397+0000 [id=130] INFO o.s.b.f.s.DefaultListableBeanFactory#preInstantiateSingletons: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@7307e798: defining beans [authenticationManager]; root of factory hierarchy

2019-10-10 07:21:48.715+0000 [id=130] INFO o.s.c.s.AbstractApplicationContext#prepareRefresh: Refreshing org.springframework.web.context.support.StaticWebApplicationContext@541e8ff5: display name [Root WebApplicationContext]; startup date [Thu Oct 10 07:21:48 UTC 2019]; root of context hierarchy

2019-10-10 07:21:48.716+0000 [id=130] INFO o.s.c.s.AbstractApplicationContext#obtainFreshBeanFactory: Bean factory for application context [org.springframework.web.context.support.StaticWebApplicationContext@541e8ff5]: org.springframework.beans.factory.support.DefaultListableBeanFactory@3ed28929

2019-10-10 07:21:48.716+0000 [id=130] INFO o.s.b.f.s.DefaultListableBeanFactory#preInstantiateSingletons: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@3ed28929: defining beans [filter,legacy]; root of factory hierarchy

2019-10-10 07:21:49.305+0000 [id=130] INFO jenkins.install.SetupWizard#init:

*************************************************************

Jenkins initial setup is required. An admin user has been created and a password generated.

Please use the following password to proceed to installation:

5fcaf44303fe4c50b9699c76798f084f

This may also be found at: /var/jenkins_home/secrets/initialAdminPassword

*************************************************************

2019-10-10 07:21:55.399+0000 [id=138] INFO hudson.model.UpdateSite#updateData: Obtained the latest update center data file for UpdateSource default

2019-10-10 07:21:57.027+0000 [id=138] INFO h.m.DownloadService$Downloadable#load: Obtained the updated data file for hudson.tasks.Maven.MavenInstaller

2019-10-10 07:21:57.028+0000 [id=138] INFO hudson.util.Retrier#start: Performed the action check updates server successfully at the attempt #1

2019-10-10 07:21:57.033+0000 [id=138] INFO hudson.model.AsyncPeriodicWork$1#run: Finished Download metadata. 9,767 ms

2019-10-10 07:21:58.082+0000 [id=130] INFO hudson.model.UpdateSite#updateData: Obtained the latest update center data file for UpdateSource default

2019-10-10 07:21:58.651+0000 [id=147] INFO jenkins.InitReactorRunner$1#onAttained: Completed initialization

2019-10-10 07:21:58.787+0000 [id=38] INFO hudson.WebAppMain$3#run: Jenkins is fully up and running

Now you need to copy the above password and paste on the web-page https://<IP-Adress>:8080

Now your Jenkins server is ready to execute the build jobs.

Click on to create a new job.

You need to create a new pipeline with some name

This will open up to a window where you can write a groovy script. I have written following sample script

pipeline {

agent any

stages {

stage('Build') {

steps {

sh 'echo Naresh Bhat: Executing make command'

}

stage('Test'){

steps {

sh 'echo Naresh Bhat: Executing Test block'

}

stage('Deploy') {

steps {

sh 'echo Naresh Bhat: Executing Deploy block'

}

After writing the script you have to Save the script and apply.

click on Build tab to build the script, the below pic show how the #3 script has been built. My earlier two builds #1 and #2 failed because of missing closing brackets. Those are in RED color.

The successful build will be always in the BLUE color.

You can check the console output. Which basically print the echo message which I have put in the groovy script.

Conclusion:

This document write up make you to familiarize with

Docker installation on host machine
Docker image creation
Running Jenkins using docker image
Setting up Jenkins
Executing a build on Jenkins server

Issues: Container ID is being used.

It looks like a container with the name centosjenkin already exists in the system. You can check the output of the below command to confirm if it indeed exists:

$ docker ps -a

The last column in the above command's output is for names.

If the container exists, remove it using:

$ docker rm centosjenkin

Or forcefully using,

$ docker rm -f centosjenkin

And then try creating a new container.

If you face any kind of issue that the container ID is being used, you can check and remove the zombie container ID which got created after executing the <Ctrl>+C

[nbhat@ws jenkins-centos-7]$ sudo ./rundocker.sh

[sudo] password for nbhat:

docker: Error response from daemon: Conflict. The container name "/centosjenkin" is already in use by container "7c61deb2456263ec965d0cbd14ee014fb1fd32f8a2106e5c5180e5a61dc59a3b". You have to remove (or rename) that container to be able to reuse that name.

See 'docker run --help'.

[nbhat@ws jenkins-centos-7]$

[nbhat@ws jenkins-centos-7]$ sudo docker ps -a

[sudo] password for nbhat:

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

7c61deb24562 myjenk "/sbin/tini -- /usr/…" 19 hours ago Exited (130) 19 hours ago centosjenkin

2f70c1e0cec2 400038fdae8a "/bin/sh -c 'apt-get…" 20 hours ago Exited (1) 20 hours ago vigorous_taussig

eb7f2b48a3ea fe778efc95c6 "/bin/sh -c 'apt-get…" 20 hours ago Exited (3) 20 hours ago awesome_heyrovsky

1367f341c7ee 11a95539d9a7 "/bin/sh -c 'apt-get…" 20 hours ago Exited (3) 20 hours ago inspiring_williams

656fa4542776 44354222bde5 "/bin/sh -c 'apt-get…" 20 hours ago Exited (100) 20 hours ago elastic_austin

82b2595f2e70 5004c8af3092 "/bin/sh -c 'apt-get…" 20 hours ago Exited (1) 20 hours ago hungry_bose

dc979e3a604e 660862655679 "/bin/sh -c 'yum upd…" 21 hours ago Exited (1) 21 hours ago vigorous_diffie

a43dc0078002 660862655679 "/bin/sh -c 'yum upd…" 21 hours ago Exited (1) 21 hours ago modest_galileo

fbd0486436c8 660862655679 "/bin/sh -c 'yum upd…" 21 hours ago Exited (1) 21 hours ago modest_austin

3c31e8495b24 660862655679 "/bin/sh -c 'apt-get…" 21 hours ago Exited (1) 21 hours ago epic_buck

8498ddad6a8f hello-world "/hello" 21 hours ago Exited (0) 21 hours ago inspiring_zhukovsky

[nbhat@ws jenkins-centos-7]$

[nbhat@ws jenkins-centos-7]$ sudo docker rm centosjenkin

centosjenkin