Docker: Install plugins from plugins.txt fails

[ReinierKoops]

Docker commands that you execute

I had this in my Dockerfile:

FROM jenkins

COPY plugins.txt /usr/share/jenkins/ref/plugins.txt
RUN /usr/local/bin/install-plugins.sh < /usr/share/jenkins/ref/plugins.txt

RUN echo 2.0 > /usr/share/jenkins/ref/jenkins.install.UpgradeWizard.state

Plugins.txt (which is in the same folder as the Dockerfile):

gradle:1.26
junit:1.18

I ran:
docker build . --tag test-jenkins --no-cache

Actual result:

Sending build context to Docker daemon 3.072 kB
Step 1/3 : FROM jenkins
 ---> 59b08e8f6e37
Step 2/3 : COPY plugins.txt /usr/share/jenkins/plugins.txt
 ---> 212babaf63db
Removing intermediate container 2f12ff3a424d
Step 3/3 : RUN /usr/local/bin/install-plugins.sh < /usr/share/jenkins/plugins.txt
 ---> Running in 377c86b2e39d
Creating initial locks...
Analyzing war...
Downloading plugins...

WAR bundled plugins:


Installed plugins:
*:
Cleaning up locks
rm: cannot remove ‘/usr/share/jenkins/ref/plugins/*.lock’: No such file or directory
The command '/bin/sh -c /usr/local/bin/install-plugins.sh < /usr/share/jenkins/plugins.txt' returned a non-zero code: 1

Expected outcome:

Sending build context to Docker daemon 3.072 kB
Step 1/4 : FROM jenkins
 ---> 59b08e8f6e37
Step 2/4 : COPY plugins.txt /usr/share/jenkins/ref/plugins.txt
 ---> 5c7a8e90a55e
Removing intermediate container 8d75ac2282ad
Step 3/4 : RUN /usr/local/bin/install-plugins.sh gradle:1.26 junit:1.18
 ---> Running in ccbf73e31a7d
Creating initial locks...
Analyzing war...
Downloading plugins...
Downloading plugin: gradle from https://updates.jenkins.io/download/plugins/gradle/1.26/gradle.hpi
Downloading plugin: junit from https://updates.jenkins.io/download/plugins/junit/1.18/junit.hpi
 > gradle depends on structs:1.3
Downloading plugin: structs from https://updates.jenkins.io/download/plugins/structs/latest/structs.hpi
 > junit depends on structs:1.2

WAR bundled plugins:


Installed plugins:
gradle:1.26
junit:1.18
structs:1.7
Cleaning up locks
 ---> edfd95c8e270
Removing intermediate container ccbf73e31a7d
Step 4/4 : RUN echo 2.0 > /usr/share/jenkins/ref/jenkins.install.UpgradeWizard.state
 ---> Running in cf66161c6d52
 ---> 367ab182ea17
Removing intermediate container cf66161c6d52
Successfully built 367ab182ea17

Have you tried a non-dockerized Jenkins and get the expected outcome?

No

Output of _Docker version_:

Client:
 Version:      17.03.1-ce
 API version:  1.27
 Go version:   go1.7.5
 Git commit:   c6d412e
 Built:        Mon Mar 27 17:14:09 2017
 OS/Arch:      linux/amd64

Server:
 Version:      17.03.1-ce
 API version:  1.27 (minimum version 1.12)
 Go version:   go1.7.5
 Git commit:   c6d412e
 Built:        Mon Mar 27 17:14:09 2017
 OS/Arch:      linux/amd64
 Experimental: false

Other relevant information:

It does work when I don't use the plugins.txt. This Dockerfile generates the expected outcome:

FROM jenkins

COPY plugins.txt /usr/share/jenkins/ref/plugins.txt
RUN /usr/local/bin/install-plugins.sh gradle:1.26 junit:1.18

RUN echo 2.0 > /usr/share/jenkins/ref/jenkins.install.UpgradeWizard.state

[carlossg]

That feature is not included in the latest LTS image yet, you can use weekly builds or the other ways to install plugins

[godbyk]

@WKoopa As a workaround, you can use xargs:

RUN xargs /usr/local/bin/install-plugins.sh < /usr/share/jenkins/ref/plugins.txt

The contents of plugins.txt get passed to xargs which then feeds them to install-plugins.sh as command-line parameters.