Upgrade Docker container
Initial Situation
Here is how you usually start a Docker container with LogicalDOC connected to a MySQL 8.0 container for DB engine
Get the LogicalDOC 8.6.1 image
docker pull logicaldoc/logicaldoc:8.6.1
Run the MySQL container
docker run --name=mysqlld861 -e MYSQL_ROOT_PASSWORD=mypassword -e MYSQL_DATABASE=logicaldoc -e MYSQL_USER=ldoc -e MYSQL_PASSWORD=changeme mysql:latest --default-authentication-plugin=mysql_native_password
Run the LogicalDOC container connected to the MySQL one
docker run -p 8080:8080 -e LDOC_USERNO=543645 -e DB_HOST=mysqlld861 --link mysqlld861 logicaldoc/logicaldoc:8.6.1
Prepare for the upgrade
Download the upgrade package for LD 8.6.1 from http://network.logicaldoc.com/ and copy it from the host to the container instance.
Note that the file will be copied to the directory prepared to contain the update packages
docker cp ldoc_upd-00000086.zip <Logicaldoc-container-name>:/LogicalDOC/updates/
The upgrade package ldoc_upd-00000086.zip will upgrade the system from version 8.6.1 to version 8.7
Create image (snapshot) from container filesystem
docker commit <Logicaldoc-container-ID> mysnapshot
Use the inspect command to inspect the location of /conf and /repository directories
docker inspect <Logicaldoc-container-name>
I capture the paths of the /conf and /repository directories of the current Logicaldoc container and replace them for the snapshot image.
docker run -ti -v /var/lib/docker/volumes/89bbc84f2bc8ed5d748710876bde62ac30d065fbb582888bec52b2bcf2542a47/_data:/LogicalDOC/conf -v /var/lib/docker/volumes/353b4ee020551ccadb668353dedac87f9706a277d027b9a9993e096462a1ff1e/_data:/LogicalDOC/repository --link mysqlld861 mysnapshot /bin/bash
Notice the mapping of /LogicalDOC/conf and /LogicalDOC/repository
Of course the MySQL container should be connected with the --link parameter
Starting the update
After you have connected to the snpashot instance (mysnapshot) you can proceed to launch the LogicalDOC application update.
LogicalDOC updates usually consist of an application update on the filesystem and possible updates to the configuration (/conf/context.properties) and to the data on the database.
Launch the update with the following commands on the snapshot container instance
cd /Logicaldoc/bin ./update.sh
After the process completes you can exit from the snapshot with command
exit
After the upgrade
At this point we can make a copy of my updated container (mysnapshot) or run it as is.
I choose the latter solution to have a friendlier name (I also add the version name)
docker commit --change='CMD ["/LogicalDOC/logicaldoc.sh", "run"]' <ID-of-container-mysnapshot> myCompanyName/logicaldoc:8.7
- Start the new Docker container with the paths of the old instance (for configuration and document repository)
docker run -ti -v /var/lib/docker/volumes/89bbc84f2bc8ed5d748710876bde62ac30d065fbb582888bec52b2bcf2542a47/_data:/LogicalDOC/conf -v /var/lib/docker/volumes/353b4ee020551ccadb668353dedac87f9706a277d027b9a9993e096462a1ff1e/_data:/LogicalDOC/repository --link mysqlld861 myCompanyName/logicaldoc:8.7
