Greetings I am having an issue registering a Flow with a sim

Question

Greetings I am having an issue registering a Flow with a simple ShellTask Prefect Cloud 1 0 The RunConfig for the flow is pointing to a custom image in ECR that contains the binary that we are attempting to run via the shell task using the ECSRun type The path to the binary in the shell command does not exist locally When I attempt to register the flow it fails with a no such file or directory error Does the register cli command attempt to verify the shell task locally How can I get around this when I only want it to reference the location in the container image

Kevin Kho · Answer

It should need it Can I see how you call the ShellTask

Scott Henley · Answer

I create the task ```dcm task = ShellTask return all=True stream output=True ``` and run it in the flow ```output = dcm task run command= service dcm service ``` where the path to the binary inside the ECR image is the command

Scott Henley · Answer

I mainly want to get back the log data from the binary service and output it

Kevin Kho · Answer

Can I see your traceback

Kevin Kho · Answer

Ah wait don t call run in the flow

Kevin Kho · Answer

Just do ```output = dcm task run command= service dcm service ```

Scott Henley · Answer

When I use the register cli command this is the error ```Collecting flows 2022 07 07 15 12 55 0500 INFO prefect ShellTask | var folders 7d 41lxpm4s6039384cprdz33rm0000gn T prefect va5kr fc line 1 service dcm service No such file or directory 2022 07 07 15 12 55 0500 ERROR prefect ShellTask | Command failed with exit code 127 Traceback most recent call last File Users scotthenley Projects prefect flows direnv python 3 9 12 bin prefect line 8 in lt module gt sys exit cli File Users scotthenley Projects prefect flows direnv python 3 9 12 lib python3 9 site packages click core py line 1130 in call return self main args kwargs File Users scotthenley Projects prefect flows direnv python 3 9 12 lib python3 9 site packages click core py line 1055 in main rv = self invoke ctx File Users scotthenley Projects prefect flows direnv python 3 9 12 lib python3 9 site packages click core py line 1657 in invoke return process result sub ctx command invoke sub ctx File Users scotthenley Projects prefect flows direnv python 3 9 12 lib python3 9 site packages click core py line 1635 in invoke rv = super invoke ctx File Users scotthenley Projects prefect flows direnv python 3 9 12 lib python3 9 site packages click core py line 1404 in invoke return ctx invoke self callback ctx params File Users scotthenley Projects prefect flows direnv python 3 9 12 lib python3 9 site packages click core py line 760 in invoke return callback args kwargs File Users scotthenley Projects prefect flows direnv python 3 9 12 lib python3 9 site packages prefect cli build register py line 64 in inner return func args kwargs File Users scotthenley Projects prefect flows direnv python 3 9 12 lib python3 9 site packages prefect cli build register py line 810 in register register internal File Users scotthenley Projects prefect flows direnv python 3 9 12 lib python3 9 site packages prefect cli build register py line 536 in register internal source to flows = collect flows File Users scotthenley Projects prefect flows direnv python 3 9 12 lib python3 9 site packages prefect cli build register py line 255 in collect flows flows = load flows from script s location File Users scotthenley Projects prefect flows direnv python 3 9 12 lib python3 9 site packages prefect cli build register py line 133 in load flows from script namespace = runpy run path abs path run name= lt flow gt File Users scotthenley pyenv versions 3 9 12 lib python3 9 runpy py line 268 in run path return run module code code init globals run name File Users scotthenley pyenv versions 3 9 12 lib python3 9 runpy py line 97 in run module code run code code mod globals init globals File Users scotthenley pyenv versions 3 9 12 lib python3 9 runpy py line 87 in run code exec code run globals File Users scotthenley Projects prefect flows prefect test dcm api service py line 36 in lt module gt output = dcm task run command= service dcm service File Users scotthenley Projects prefect flows direnv python 3 9 12 lib python3 9 site packages prefect utilities tasks py line 456 in method return run method self args kwargs File Users scotthenley Projects prefect flows direnv python 3 9 12 lib python3 9 site packages prefect tasks shell py line 164 in run raise prefect engine signals FAIL prefect engine signals FAIL Command failed with exit code 127```

Kevin Kho · Answer

You shouldn t be calling run in the Flow The Flow block will do that for you

Scott Henley · Answer

ahh so how do I reference the task in the flow block

Kevin Kho · Answer

```shell = ShellTask with Flow as flow shell ```

Scott Henley · Answer

can insert the command in the flow block like this ```output = dcm task command= service dcm service ```

Scott Henley · Answer

or should command be part of the ShellTask initialization

Kevin Kho · Answer

It can be inserted in <https docs prefect io api latest tasks shell html shelltask|both> places

Scott Henley · Answer

awesome thanks that did the trick

Scott Henley · Answer

it makes sense run tries to run it immediately at registration

Kevin Kho · Answer

Yes exactly