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https://issues.apache.org/jira/browse/NIFI-5799?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17428270#comment-17428270
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Bengt Haard commented on NIFI-5799:
-----------------------------------
I have the same problem. Besides this, I would also like to have the
possibility to move all the data directories (repositories,
logs, conf and state) to a customized location, e.g. /var/lib/nifi/<version>
instead. A setup like this is recommended
in the Nifi admin guide under the heading "Upgrade Recommendations", but is not
possible to implement as long as volumes are defined in the Dockerfile.
The simplest solution is to do as proposed in this issue, remove the volumes
section. To get data persistence volumes should instead be defined when
starting the container, e.g.
docker run --name nifi \
-p 8443:8443 \
-d \
-v logs_vol:/opt/nifi/nifi_current/logs \
-v conf_vol:/opt/nifi/nifi_current/conf \
-v content_vol:/opt/nifi/nifi_current/content_repository \
-v database_vol:/opt/nifi/nifi_current/database_repository \
-v flowfile_vol:/opt/nifi/nifi_current/flowfile_repository \
-v provenance_vol:/opt/nifi/nifi_current/provenance_repository \
-v state_vol:/opt/nifi/nifi_current/state \
apache/nifi:1.14.0
> Unable to extend docker image with custom configuration
> -------------------------------------------------------
>
> Key: NIFI-5799
> URL: https://issues.apache.org/jira/browse/NIFI-5799
> Project: Apache NiFi
> Issue Type: Bug
> Components: Docker
> Affects Versions: 1.8.0
> Reporter: Noel Winstanley
> Priority: Major
>
> I build a custom docker image for my product, based on the stock docker nifi
> image.
> My Dockerfile installs a flow.xml.gz, and then uses sed to adjust some
> properties in conf/bootstrap.conf and conf/nifi.properties. This worked well
> with previous versions of Nifi
> https://issues.apache.org/jira/browse/NIFI-5438 (introduced in Nifi 1.8.0)
> added a VOLUME command to the docker file that covers ${NIFI_HOME}/conf .
> I am still able to copy a new flow.xml.gz into the conf directory, BUT am
> unable to edit files already in the conf dir (using sed or otherwise).
> This surprising behaviour is backed up by the dockerfile docs
> https://docs.docker.com/engine/reference/builder/#volume - "
> *Changing the volume from within the Dockerfile*: If any build steps change
> the data within the volume after it has been declared, those changes will be
> discarded. "
> The properties I wish to override (e.g. nifi.bored.yield.duration) aren't
> supported as environment variables, so I can't pass them in from a compose
> file or similar.
> Having a VOLUME command over a configuration directory really hampers the
> extensibility of the docker image - could it be removed?
>
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