@Marvin With Prefect 3.0, I want to create a

prefect.yaml

file to deploy a flow. The flow uses an existing Docker image so it shouldn't be build. How do I add

build = False

in the configuration?

You can configure the

prefect.yaml

file to avoid building a Docker image by setting the

build

section to

null

or simply not including it at all. Here’s an example configuration where the flow uses an existing Docker image without building it:

yaml
name: my_project
prefect-version: 3.0.0

build: null   # This ensures no build steps are executed

push: null    # No push steps required

pull:
  - prefect.deployments.steps.git_clone:
      repository: <https://gitlab.com/your_repository.git>
      credentials: "{{ prefect.blocks.gitlab-credentials.your_credentials }}"

deployments:
  - name: my_deployment
    flow_name: my_flow
    tags: []
    work_pool:
      name: default-agent-pool
      variables: {}
    infrastructure:
      type: docker
      image: your_existing_docker_image

This configuration sets the

build

field to

null

to skip the build process and uses an existing Docker image specified in the

deployments

section. For more details, you can refer to Prefect's documentation on defining deployments with YAML, where you can find additional examples and options.