How to pass env variables into bpmn flow?

[Alex_ch]

I have bpmn flow which needs to call external service with different user/pass for different environment - stagin/prod/local. How do I better approach it? I’ve extracted config into separate bpmn, and trying to call it from main bpmn (via call activity), however this is not preferable solution. Ideally, I’d like to pass env variable into docker container like:

environment:
- USER=staging-user
- PASSWORD=staging-password

And next somehow read them in bpmn flow (ideally from modeler, no custom java code). Is it possible? Can I achieve this?

[StephenOTT]

See:

Using secrets/passwords securely in processes (Using Docker Secrets, not storing passwords in process variables)

Hey all So we have had some discussions about how to store secrets/passwords when working with Processes: Recently we came up with the following solution: Using Docker Secrets (Blog | Docker) you can manage sensitive data: with the Secrets feature, which basically creates a in-memory volume that stores your secret(s): Manage sensitive data with Docker secrets | Docker Documentation How Docker manages secrets When you add a secret to the swarm, Docker sends the secret to the swarm manager…

If you want to use ENV vars then you can easily access them from a Javascript based Script in the BPMN:

var password = System.getenv('MY_PASSWORD_ENV')

[Alex_ch]

Thanks Stephen! This seems to be an exact answer of what I asked (will check on Monday). One more question: is there somewhere an complete javascript api I can use in camunda model? I have a lot of experience in javascript and much less in java, so having an complete javascript api doc would be really helpful for me.

[StephenOTT]

See the scripting docs for camunda for a few keywords and variables that are available during executions. Other than that its regular Nashorn Javascript. So you can look over the Java Nashorn Docs (google it: Nashorn Javascript).

Also if you search the forum you will find a lot of examples to likely most of your issues that i have posted (i have shared a lot of javascript examples and usages).

Feel free to reach out again if you are trying to solve any js issues.

[Alex_ch]

Works well after adding:

var system = java.lang.System