I have created a dockerfile which copied the war file to tomcat folder. FROM centos EXPOSE 80 EXPOSE 443 EXPOSE 8080 RUN mkdir -p /usr/src/app COPY apache-tomcat-9.0.37 /usr/src/app/apache-tomcat-9.0.37 COPY jdk8u302-b08-jre /usr/src/app/jdk8u302-b08-jre COPY WAR/productSuite.war /usr/src/app/apach…

[image] uday1kiran: The database.properties file is there in the subfolder of app: WEB-INF/Database So, it’s already in the image? (Like included in the WAR file, and included in WAR/productSuite for the test in which you expanded the WAR file manually?) What’s the problem you’re trying to so…

I am trying bind mount only. The label is the folder name. In the label folder I kept database.properties file which should be replaced with the one in the image. But it is using the one in image only.

[image] uday1kiran: -v label:/... In this example label cannot be a bind mount. A bind mount would look like -v ./label:... or something similar that looks like a folder name and not just a label. With just label you will have created a volume, managed by Docker and not shared with a folder o…

using ./label gave below error. docker: Error response from daemon: create ./tested: “./tested” includes invalid characters for a local volume name, only “[a-zA-Z0-9][a-zA-Z0-9_.-]” are allowed. If you intended to pass a host directory, use absolute path. See ‘docker run --help’. So, tried like…

[image] uday1kiran: I thought it would be copied to the bind mount folder from the image No, that only happens for new empty volumes (which Docker manages), not for bind mounts. A bind mount will just replace the folder (or file) in the container with a folder (or file) from the host, simply …

Thank you, but this option available in jenkins image. When I ran like this, it is copying the contents to the local folder mounted from the container. Any possibility to implement similar here.? Also, while creating the image itself, I am not copying the war file, instead I am copying the extrac…

[image] uday1kiran: but this option available in jenkins image I’m quite sure that is something that the Jenkins image is doing for you, not Docker. For that to work, I guess you will see that /var/jenkins_home is empty in the original image (hence that the Jenkins image is storing its base c…

ok, I thought there would be a simple setting in docker. Thanks for clearing this. Also one more doubt, the database.properties contains only key value pairs.Is there anyway to pass them as parameters to the docker run so that it would update the file inside the container. Just want to see if this…

[image] uday1kiran: Is there anyway to pass them as parameters to the docker run so that it would update the file inside the container. Again not something Docker would do for you. Whether or not the WAR file that is running in Tomcat supports it, we cannot tell. If it can use environment var…

Docker volume is not getting created for tomcat webapp, how to fix that?

General

avbentem (Arjan) September 19, 2021, 6:46pm 9

Alternatively, when using Linux, you may decide to access the Docker-managed volumes from the host directly. I have never done that (and the documentation says “Non-Docker processes should not modify this part of the filesystem”). But apparently that’s okay:

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Docker volume is not getting created for tomcat webapp, how to fix that?

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