Hi Stephen,
the <startupFeatures> are actually meta-features: the bundles in such features
are added to etc/startup.properties. It's the "lowest" part of Karaf.
the <bootFeatures> are concrete features, added at startup of the features
service (in etc/org.apache.karaf.features.cfg). This is the recommended approach
for your features.
The framework is managed differently as it provides more than just the bundles
in startup.properties: it also brings the resources (etc files, bin files).
By the way, I'm preparing my talk for ApacheCon where I show how to create a
custom distribution and a corresponding docker image used by Mesos to populate
the Cellar cluster.
I will share my code soon.
Regards
JB
On 05/04/2017 01:30 PM, Siano, Stephan wrote:
Hi,
There is some documentation on how to create a custom distribution of karaf. In
general it seems to be recommended to use the karaf-maven-plugin for that.
The features preinstalled in the custom distribution can be defined by
different configurations in the karaf-maven-plugin, but I am not sure whether I
really understood the functionality correctly:
The <framework> configuration can contain a single feature from the framework kar. This is usually
"framework", but "framework-logback" is also possible.
The <bootFeatures>, <installedFeatures>, and <startupFeatures> tags can all
contain a list of features that are available in feature dependencies (with runtime scope).
If I got that right, the installedFeatures are available on the running node
and can be installed without network access but are not installed and started
by default. Is this correct?
What is the difference between the bootFeatures and the startupFeatures? The
documentation states that startupFeatures are written to the startup.properties
with the appropriate start level whereas bootFeatures are added to
boot-features in the feature service, but what is the difference between these
two approaches?
The framework feature also goes into the startup.properties, so why is the
framework handled separately?
Best regards
Stephan
--
Jean-Baptiste Onofré
jbono...@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com
