Postgres environment variables not loaded in runtime, but appear in ssh

Question

I'm going through the "Getting Started with Openshift" guide trying to learn this stuff. I have successfully added and configured a postgres db in my python gear.

If I run an env on the gear itself, I see the database environment variables:

[]\> env |grep POSTGRESQL_DB
OPENSHIFT_POSTGRESQL_DB_HOST=x.x.x.x
OPENSHIFT_POSTGRESQL_DB_USERNAME=admindb
OPENSHIFT_POSTGRESQL_DB_PORT=5432

But in my deployed code, I dump all the env variables with logging.error(os.environ) and none of the POSTGRESQL_DB variables are set. All the python ones seem to load properly.

I know I could set these vars manually, but since these vars are controlled by the gear they could become stale. The documentation implies that these variables should be set (they are used in the sample code).

Ryan Groten · Accepted Answer · 2015-01-15 21:51:46Z

1

Found the problem.

In the instructions we set a hot_deploy marker (so the application doesn't bounce when code changes are committed). The next step in the instructions is to add the postgres cartridge, but the environment variables won't load until the cartridge is restarted. So bounce the application and all is well.

Thanks, Ryan

answered Jan 15, 2015 at 21:51

Ryan Groten

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Nathan Stocks · Accepted Answer · 2015-01-15 21:05:43Z

0

Is your deployed code running through the same logged-in shell environment as you log in with?

A common solution to making code see shell environment variables that are launched via some non-shell method is to launch them through a login shell.

For example:

/bin/bash -lc "/whatever/you/are/launching --args stuff"

answered Jan 15, 2015 at 21:05

Nathan Stocks

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Ryan Groten Over a year ago

Thanks for the response. Nope, the code is deployed and run via OpenShift. As far as I know I don't have any control over how it is launched, but the OpenShift cartridge is supposed to set a ste of preconfigured variables for use in the application (OPENSHIFT_POSTGRES_DB_HOST, among others).

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