How to permanently change Jahia properties in Jahia docker images?
I am using Jahia docker images from docker community and I need to permanently change Jahia settings so they are effective after a reboot. How can I do that if the container is recreated every time I restart it?
The link First steps with Jahia shows how to start a default Jahia docker image in development mode. If one wants to, let's say, put Jahia in read only mode permanently (readOnlyMode=true) they should make use of a Dockerfile.
Here is one example on how to set your Dockerfile and change the default jahia.properties file from Jahia docker image jahia-dev by a custom one, stored in your local directory, with the property readOnlyMode set to true as mentioned before:
FROM jahia/jahia-dev:latest # Local copy of jahia.properties to container path COPY jahia.properties /opt/jahia/dx/digital-factory-config/jahia/jahia.properties WORKDIR /opt/jahia/dx CMD ./start.sh
After that one should build the new image
docker build . Sending build context to Docker daemon 54.27kB Step 1/5 : FROM jahia/jahia-dev:latest ---> 16120e527d33 Step 2/5 : COPY digital-factory-config/jahia/jahia.properties /opt/jahia/dx/digital-factory-config/jahia/jahia.properties ---> Using cache ---> 820b567c6942 Step 3/5 : COPY digital-factory-config/jahia/jahia.node.properties /opt/jahia/dx/digital-factory-config/jahia/jahia.node.properties ---> Using cache ---> fa7dffdea1b3 Step 4/5 : WORKDIR /opt/jahia/dx ---> Using cache ---> 4365af3521c6 Step 5/5 : CMD ./start.sh ---> Using cache ---> a40eee1598f3 Successfully built a40eee1598f3
And finally run the container. The ID can be obtained from the output from "docker build" command or by running a "docker images -a" to show all available images
docker run a40eee1598f3
The following link contains an example of Dockerfile and jahia properties structure ready to be changed, built and ran: Jahia Dockerfile