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Environment maintenance

This are some instructions to keep the instructor environment

Uptating the attendees instructions served by the instructor httpd server

The instructor webserver [http://localhost:8082/] provides the attendes instructions in the HTML format.

To update the HTML, have http://asciidoctor.org/ installed and run the following command:

asciidoctor ../docker-java-lab.adoc -a data-uri -a numbered -a experimental -a source-highlighter=coderay -a imagesdir=images -o dockerfiles/lab-httpd-server/index.html

After that, you will need to build the services again running

docker-compose build

Backing up Nexus data container to a file

If you need to update the nexusbackup.tar file, run the following command:

docker run --rm --volumes-from nexusdata -v  $(pwd):/backup ubuntu tar cvf /backup/nexusbackup.tar /sonatype-work

This will compress the contents of /sonatype-work folder from the nexusdata container in to a file called nexusbackup.tar