Question
Any instruction on how to dockerize pega?
We are building docker image with pega installed on postgres. Wondering if there is any instruction or document on how to dockerize pega.
Thanks,
Kelly
Message was edited by: Lochan to add Category
Hi Eugene,
This is very helpful. So the data volume is the part of the docker image or it's distributed outside of the image? Do you have a sample dockerfile?
Thanks,
Kelly
Hi Kelly,
volumes are never saved with image (not in current implementation of Docker). That leaves you with usage of plugins/own solutions.
We don't use Dockerfiles, but have more elaborate provisioning in place (with config management and cooking of images).
I have only Dockerfiles for base images, which won't help you much, probably.
When I was using volume to run the install.sh, I had an error that it was running out of space. Any idea?
Hard to tell, not knowing setup you did. Might be simple permission on volume or else.
Hi Kelly,
we've done it already for internal customers and process itself is not very complex. But obviously depends on a scale.
First of all, same instructions apply as to standalone installations. So, if you have an Installation Guide - you are already on a way.
Dockerizing DB part will be the most tricky one, as you have to use/manage Docker volumes for data dir of postgres.
Then, it's about taking postgres image (Docker Hub or your own), putting desired config (postgresql.conf, pg_hba.conf, etc), creating schema(s) for PRPC, installing PLJava (I'm pretty sure it's still a must), installing PRPC using standard installation tools.
When that's done - remember, there is a volume out there on your host system, which has to be managed. You can either pack it and distribute, or use volume plugins (such as Flocker).
App server part is quite trivial. One thing only - you will need to link it with DB, obviously. Docker provides that feature, called --link or --add-hosts.
Once app server can reach DB instance - you're good to configure JDBC connection string and credentials. Configurations can be put in into image during build or mounted during startup of container.
And, generally speaking, this is it. Hope that gives you direction. Feel free to drop further questions.