问题
I am trying to build a Java application and make a package using docker. This builds needs a maven repository which I don't want to include in the image, since it's very large. I wanted to try using volumes and mount my local maven repository to the maven repository in the image. I used apt-get install -y maven
in order to have maven available, but I can't find the directory .m2
in the image $HOME
.
I used ls -la $HOME
, ls -la
and ls -la /root
to find the maven home, but there is no .m2
directory there.
EDIT 1:
I have these lines in Dockerfile
:
FROM ubuntu
MAINTAINER Zeinab Abbasimazar
# Install and configure required packages
RUN apt-get update; \
apt-get install -y --no-install-recommends apt-utils; \
apt-get install -y dialog; \
apt-get install -y wget unzip curl maven; \
mkdir $HOME/.m2/; \
ls -la /usr/share/maven/conf/; \
echo \
"<settings xmlns='http://maven.apache.org/SETTINGS/1.0.0\' \
xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' \
xsi:schemaLocation='http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd'> \
<localRepository>/root/.m2/repository</localRepository> \
<interactiveMode>true</interactiveMode> \
<usePluginRegistry>false</usePluginRegistry> \
<offline>false</offline> \
</settings>" \
> /usr/share/maven/conf/settings.xml
VOLUME ["/home/zeinab/.m2/", "/root/.m2/"]
# Build
RUN mvn -X clean install -pl components -P profile
Which puts local repository configurations in image's maven configuration file, mounts my local maven repository to a directory in the image and finally performs the build. As I can see in the maven build log that it's using the local repository path I expected:
[DEBUG] Reading global settings from /usr/share/maven/conf/settings.xml
[DEBUG] Reading user settings from /root/.m2/settings.xml
[DEBUG] Using local repository at /root/.m2/repository
But still can't detect dependencies.
回答1:
I finally found the solution for mounting my local maven repository in docker. I changed my solution; I am mounting it in the run
phase instead of build
phase. This is my Dockerfile
:
FROM ubuntu
MAINTAINER Zeinab Abbasimazar
ADD gwr $HOME
RUN apt-get update; \
apt-get install -y --no-install-recommends apt-utils; \
apt-get install -y wget unzip curl maven git; \
echo \
"<settings xmlns='http://maven.apache.org/SETTINGS/1.0.0\' \
xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' \
xsi:schemaLocation='http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd'> \
<localRepository>/root/.m2/repository</localRepository> \
<interactiveMode>true</interactiveMode> \
<usePluginRegistry>false</usePluginRegistry> \
<offline>false</offline> \
</settings>" \
> /usr/share/maven/conf/settings.xml; \
mkdir /root/.m2/; \
echo \
"<settings xmlns='http://maven.apache.org/SETTINGS/1.0.0\' \
xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' \
xsi:schemaLocation='http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd'> \
<localRepository>/root/.m2/repository</localRepository> \
<interactiveMode>true</interactiveMode> \
<usePluginRegistry>false</usePluginRegistry> \
<offline>false</offline> \
</settings>" \
> /root/.m2/settings.xml
WORKDIR .
CMD mvn -X clean install -pl components -P profile
At first, I build the image using above Dockerfile
:
sudo docker build -t imageName:imageTag .
Then, I run a container as below:
sudo docker run -d -v /home/zeinab/.m2/:/root/.m2/ --name containerName imageName:imageTag
回答2:
You don't find the ~/.m2
directory because it is created only when needed, i.e. when you store libraries in the local repository or when you add a config file.
You can create the ~/.m2
directory yourself and create your own settings.xml
inside. There you can define the emplacement of the local repository:
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
https://maven.apache.org/xsd/settings-1.0.0.xsd">
...
<localRepository>/path/to/local/repo/</localRepository>
...
</settings>
Read the documentation for more details.
来源:https://stackoverflow.com/questions/45660774/mounting-maven-repository-to-docker