I ve been having a vexing time getting this launched I kick

Question

I ve been having a vexing time getting this launched I kick off the docker container using the master tag and it exits immediately with no logs or errors When I shell into the container and try to launch the server it errors out with FileNotFoundError Errno 2 No such file or directory docker compose docker compose

tiz.io · Answer

So I abandoned Docker and used a virtualenv PIP installed everything and tried prefect server start and got the same error

tiz.io · Answer

FileNotFoundError Errno 2 No such file or directory docker compose docker compose

Chris White · Answer

Hi < tiz io> as the error mentions you need to have docker compose installed and running for the Prefect backend + UI

tiz.io · Answer

It s running more than a dozen containers on that machine

Chris White · Answer

are you saying you have `docker compose` installed Can you confirm by running `which docker compose` from the command line

tiz.io · Answer

Hmm apparently not I expected it to be bundled in Docker but now that it is installed I get a different error

tiz.io · Answer

ERROR Version in docker compose yml is unsupported You might be seeing this error because you re using the wrong Compose file version Either specify a supported version e g 2 2 or 3 3 and place your service definitions under the `services` key or omit the `version` key and place your service definitions at the root of the file to use version 1 For more on the Compose file format versions see <https docs docker com compose compose file >

tiz.io · Answer

It s a step forward anyway I m perplexed about this half in half out of Docker situation Is it not possible to put all of Prefect into a single container

Chris White · Answer

FYI our docker compose file is pinned to 3 7 which requires Docker engine 18 06 0+

tiz.io · Answer

Oh I m running this Docker version 19 03 6 build 369ce74a3c

tiz.io · Answer

docker compose version docker compose version 1 21 0 build unknown

tiz.io · Answer

Seems like it should be compatible right

Chris White · Answer

i would think i m running 1 25 4 locally FWIW

tiz.io · Answer

Ok I ll see if I can get something more recent than what s in apt

tiz.io · Answer

Okay just nabbed it straight from the source docker compose version docker compose version 1 24 0 build 0aa59064 Here goes nothing

tiz.io · Answer

ian yotta ~ code coinbot prefect server start home ian local share virtualenvs coinbot bcYirIr lib python3 7 site packages prefect cli server py 236 YAMLLoadWarning calling yaml load without Loader= is deprecated as the default Loader is unsafe Please read <https msg pyyaml org load> for full details y = yaml load file Pulling postgres waiting Pulling hasura done Pulling graphql downloading 53 2 Pulling apollo waiting Pulling scheduler downloading 53 2 Pulling ui done

tiz.io · Answer

Seems legit

Chris White · Answer

yup yup looks like it s working

tiz.io · Answer

So regarding docker If a guy really wanted to wrap it all up into one container would that even be possible or would the reliance on creating its own container be a deal breaker

Chris White · Answer

hmmm in theory you might be able to but that would be an absolutely massively complicated image You d need postgres hasura various python services a full npm environment running the UI all in 1 image which would be a anti pattern in Docker

tiz.io · Answer

Makes sense It would be amazing if it were an option I d be happy to let it use my standalone redis and postgres so I could launch it all through Google s Cloud Run or on K8S I ll have to tinker with it later

tiz.io · Answer

My job is to research products like this and recommend them to enterprise customers

Chris White · Answer

if you don t want to manage all this you can always use the free tier of Prefect Cloud wink that manages all this infrastructure for you

tiz.io · Answer

They gravitate toward solutions that deploy easily in containers

Chris White · Answer

and still lets you have full control of your runtime environment for your workflows

tiz.io · Answer

Totally The cloud portion looks amazing I might be able to convince the hybrid cloud or on prem users to go bare metal

tiz.io · Answer

Okay now that I ve figured out how to change the port 8080 is in high demand I got it up and running Thanks for your help Chris

Chris White · Answer

awesome anytime