@Marvin I have already defined my flow in a prefect,yaml file yet every time I run prefect deploy it asks me if I want to use a custom container how can I stop it from asking me this

It seems like the behavior you're experiencing might be related to the way Prefect is configured. When you run

prefect deploy

, it might be checking your

prefect.yaml

file and not finding the necessary configuration to avoid asking for a custom container. You can initialize your deployment configuration, which creates the

prefect.yaml

file, by running the CLI command

prefect init

in any directory or repository that stores your flow code. Prefect ships with many off-the-shelf "recipes" that allow you to get started with more structure within your

prefect.yaml

file; run

prefect init

to be prompted with available recipes in your installation. You can provide a recipe name in your initialization command with the

--recipe

flag, otherwise Prefect will attempt to guess an appropriate recipe based on the structure of your working directory. If you're still having issues, it might be worth checking out some of the related issues on Prefect's GitHub page, such as this one about allowing customized container names for k8s worker flows, or this one about deployments with custom Python packages. If none of these solutions work, I would recommend reaching out to the Prefect community or support for more specific guidance.

This is the config - name: default version: tags: [] description: entrypoint: orchestration/prefect/flows/my_flow.py:my_flow parameters: {} work_pool: name: my-ecs-pool work_queue_name: job_variables: {} schedule: pull: - prefect.deployments.steps.git_clone: repository: my_repo branch: main access_token: '{{ prefect.blocks.secret.my_key }}'

Based on the configuration you've provided and the information I found, it seems like Prefect is asking for a custom container because it needs to know where to pull the Docker image for your flow. In your

prefect.yaml

file, you might be missing the

image

field under the

pull

section. This field should specify the Docker image that contains your flow. Here's an example of how it might look:

yaml
pull:
- prefect.deployments.steps.git_clone:
    repository: my_repo
    branch: main
    access_token: '{{ <http://prefect.blocks.secret.my|prefect.blocks.secret.my>_key }}'
- prefect.deployments.steps.pull_image:
    image: 'my_docker_image:tag'

In this example,

my_docker_image:tag

should be replaced with the name of your Docker image and its tag. If your image is hosted on Docker Hub, you can just use the image name and tag. If it's hosted on a private registry, you'll need to include the registry's URL as well. Please replace

'my_docker_image:tag'

with the actual Docker image that you want to use. If the Docker image is in a private registry, you'll need to include the URL of the registry as well. If you've already specified the Docker image in your

prefect.yaml

file and Prefect is still asking for a custom container, there might be an issue with how Prefect is reading your configuration. In that case, I would recommend reaching out to the Prefect community or support for more specific guidance.

@Marvin I just want it to pull the default image

Based on the information I found, Prefect should automatically pull the default image if no other image is specified in the

prefect.yaml

file. If you want to ensure that Prefect pulls the default image, you can explicitly specify it in your

prefect.yaml

file like this:

yaml
pull:
- prefect.deployments.steps.git_clone:
    repository: my_repo
    branch: main
    access_token: '{{ <http://prefect.blocks.secret.my|prefect.blocks.secret.my>_key }}'
- prefect.deployments.steps.pull_image:
    image: 'prefecthq/prefect:latest'

In this example,

prefecthq/prefect:latest

is the default Prefect image. If you want to use a specific version of Prefect, you can replace

latest

with the version number. If Prefect is still asking for a custom container even after you've specified the default image, there might be an issue with how Prefect is reading your configuration. In that case, I would recommend reaching out to the Prefect community or support for more specific guidance.

it still asks: Would you like to build a custom Docker image for this deployment?

Based on the information I found, it seems like the

prefect deploy

command is designed to ask if you want to build a custom Docker image. This is part of Prefect's guided CLI deployment experience. According to this pull request on Prefect's GitHub page, if Prefect finds a file named Dockerfile in your directory, it will ask if you want to use it. If you say no, it will ask if you want to rename it. The reason for this is that Prefect creates a temporary Dockerfile during the deployment process, and it wants to avoid overwriting your existing Dockerfile. If you don't want to build a custom Docker image, you can simply answer no when Prefect asks if you want to build one. Prefect should then proceed with the deployment using the default image. If Prefect is still asking for a custom Docker image even after you've answered no, there might be an issue with how Prefect is handling your input. In that case, I would recommend reaching out to the Prefect community or support for more specific guidance.

@Marvin I'd really prefer to supress this message if possible