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