#celery

hello. do you have any implementation of celery workers in a coreos cluster. I'm kinda confused on this one. Kindly please enlighten me.

hey guys

I'm having some problems getting my Flask app's context when using task signals

I made a SO post but it's not gaining much traction

basically, it doesn't look like you can get your app context when you're in a @task_prerun ?

what I'm trying to do is insert a record into a database before my task runs, using the database handler from my app

what I'm trying to do is insert a record into a database before my task runs, using the database handler from my flask app

I've got to head out for a bit, but if anyone has the slightest clue on how I can solve this without re-init. the DB handler in the signal handler, please leave a comment on the SO post if you can :)

ttrex: what's the link to your SO post?

over here :)

ttrex: and your celery version is?

4.1.0

ttrex: okay, signals aren't tasks and they won't call your ContextTask.__call__ method

ttrex: in fact, the error you're getting on "with celery.app.context():" is that celery doesn't know anything about your flask "app"

that line should really be the same as the one in ContextTask.__call__

that makes sense and it's pretty much what I deduced

what would be the recommended approach if I wanted to log something in the same db?

can I get the context from the task?

looks like it

or not actually

you're keep mixing celery and flask

these are completely separated things

celery doesn't know anything about flask unless you store the flask's app somewhere in the celery by yourself

therefore "to get the context from the task" doesn't make sense

you have your flask app available globally, you should simply import and use it

I don't even need to import it, its in the same file

but I'm still getting `working outside of application context`

what's your updated code?

my bad, I actually got it

awesome thanks

yes I seem to have gotten confused, partly from finding old examples meant for previous versions of celery and flask

many thanks for your help @malinoff

welcome