How to create a very simple build pack
jaisonpjohn opened this issue · 7 comments
All I need to do in the buildpack is,
echo "$KAFKA_TRUSTSTORE_CERT" | base64 --decode > $BUILD_DIR/BOOT-INF/classes/kafka.truststore.jks
My application is expecting a file which contains some confidential info. I could pass that as environment variable. This buildpack will read that env variable and write to local file system. I need a simple minimal buildpack for wrapping just this function. how can I do that
We have created an issue in Pivotal Tracker to manage this:
https://www.pivotaltracker.com/story/show/168657590
The labels on this github issue will be updated when the story is started.
https://docs.cloudfoundry.org/buildpacks/custom.html has docs that could help you
@Zanadar No, it doesnt, otherwise I wouldnt bother to raise an issue here. I am new to CloudFoundry, I couldnot find a single document mentioning how to create a simple buildpack which invokes a shell script
We have created an issue in Pivotal Tracker to manage this:
https://www.pivotaltracker.com/story/show/168764016
The labels on this github issue will be updated when the story is started.
@jaisonpjohn Apologies, I didn't intend to be dismissive. Buildpacks can be confusing at first. Basically . you need a bin/ directory with bin/detect, bin/supply, and bin/finalize executable scripts. Detect should exit 0, supply should do you thing, and finalize does nothing.
https://docs.cloudfoundry.org/buildpacks/understand-buildpacks.html has better docs. I'll add more information and an example in a bit.
@Zanadar No worries, I did not feel it as dismissive, its all good. Thanks for the info.
Hey @jaisonpjohn , I hope that the above helped! I'm going to close the issue, but feel free to reopen, or engage with us on the cloud foundry slack if you need more help writing a buildpack!