Yes, you can specify a particular branch in your GitHub source. Here's how you can modify your code to deploy from a specific branch:

python
if __name__ == "__main__":
    flow.from_source(
        source="<https://github.com/username/repository.git>",
        entrypoint="path/to/your/flow.py:your_flow_function",
        branch="your-branch-name"  # Add this line to specify the branch
    ).deploy(
        name="my-deployment",
        work_pool_name="my-work-pool",
    )

Simply add the

branch

parameter to your

from_source()

call. If you don't specify a branch, it will default to the repository's default branch (usually

main

or

master

). For example, if you want to deploy from a branch called

development

, you would write:

python
branch="development"

This is particularly useful when you want to: - Test flows from development or feature branches - Deploy different versions of your flows from different branches - Maintain multiple versions of your flows in different branches

Since you're using the

prefect deploy

command, here's what you need to do to ensure your changes take effect: 1. First, make sure you have a

prefect.yaml

file in your project directory. This file should contain your deployment configuration. Here's how it should look:

yaml
deployments:
  - name: "image-customization"
    entrypoint: "image_customization.py:image_customization"
    work_pool:
      name: "local-pool"
    source:
      type: "github"
      repository: "<https://github.com/calmtales/workflows.git>"
      branch: "self-hosted"
      credentials: "{{ prefect.github_credentials }}"
    tags:
      - "image-customization"
      - "gcp"

2. Then, use the

prefect deploy

command to update your deployment:

bash
prefect deploy

If you want to deploy a specific deployment from your yaml file:

bash
prefect deploy --name image-customization

3. To verify the update, you can: - Check the deployment in the UI to see if the version has been updated - Run

prefect deployment ls

to see the current state of your deployments - Use

prefect deployment inspect image-customization

to see detailed information If you're still not seeing your changes take effect, check these common issues: - Ensure your git repository is up to date and changes are pushed to the correct branch - Verify the branch name "self-hosted" is correct - Confirm your GitHub credentials are properly configured - Make sure there are no syntax errors in your

prefect.yaml

file You can also force a fresh deployment by first deleting the existing one:

bash
prefect deployment delete "image-customization"
prefect deploy

This will ensure you're starting with a completely fresh deployment rather than updating an existing one.

You can add logging to see which branch is being used during the Git clone step by modifying your flow code. Here are two approaches: 1. Using Prefect logging in your flow:

python
from prefect import flow, get_run_logger

@flow
def your_flow():
    logger = get_run_logger()
    <http://logger.info|logger.info>("Current working directory and git info:")
    
    # Log git information
    import subprocess
    import os
    
    try:
        # Log the current branch
        branch = subprocess.check_output(
            ['git', 'rev-parse', '--abbrev-ref', 'HEAD'],
            stderr=subprocess.STDOUT
        ).decode().strip()
        <http://logger.info|logger.info>(f"Current git branch: {branch}")
        
        # Log the remote URL
        remote = subprocess.check_output(
            ['git', 'remote', '-v'],
            stderr=subprocess.STDOUT
        ).decode().strip()
        <http://logger.info|logger.info>(f"Git remote info: {remote}")
        
        # Log the last commit
        commit = subprocess.check_output(
            ['git', 'log', '-1', '--oneline'],
            stderr=subprocess.STDOUT
        ).decode().strip()
        <http://logger.info|logger.info>(f"Latest commit: {commit}")
        
    except subprocess.CalledProcessError as e:
        logger.error(f"Error getting git info: {e.output.decode()}")
    
    # Your existing flow code here

2. For more detailed debugging, you can set the Git environment variable to show more information during clone:

python
import os
from prefect import flow

@flow
def your_flow():
    # Set git to be verbose
    os.environ['GIT_TRACE'] = '1'
    os.environ['GIT_CURL_VERBOSE'] = '1'
    
    # Your existing flow code here

Additionally, you can verify the current deployment configuration using:

bash
prefect deployment inspect image-customization --json

This will show you the exact configuration being used, including the branch information. If you're still having issues, you can try these troubleshooting steps: 1. Clear the Prefect deployment storage cache:

bash
rm -rf ~/.prefect/storage/*

2. Force a fresh clone by modifying your deployment code to include a pull-policy:

python
deployment = await flow.from_source(
    source=GitRepository(
        url="<https://github.com/calmtales/workflows.git>",
        credentials=github_credentials,
        pull_policy="ALWAYS"  # Add this line to force fresh clone
    ),
    entrypoint="image_customization.py:image_customization",
    branch="self-hosted"
).deploy(
    name="image-customization",
    work_pool_name="local-pool",
    tags=["image-customization", "gcp"],
)

3. You can also check the work pool logs for more detailed information about the deployment process:

bash
prefect work-pool ls
prefect work-pool preview local-pool

After adding these logging modifications, run your flow again and you should see which branch is being used during the clone step in the flow logs.

✅ thought for 58.4 seconds

Since the inspection shows it's still using the 'main' branch, here's how to fix it: 1. First, make sure your

prefect.yaml

file explicitly sets the branch in the deployment configuration. It should look like this:

yaml
deployments:
  - name: "image-customization"
    entrypoint: "image_customization.py:image_customization"
    work_pool:
      name: "local-pool"
    source:
      type: "github"
      repository: "<https://github.com/calmtales/workflows.git>"
      branch: "self-hosted"  # Make sure this is correct
      credentials: "{{ prefect.blocks.github-credentials.github-token }}"
    tags:
      - "image-customization"
      - "gcp"

2. Delete the existing deployment completely:

bash
prefect deployment delete "image-customization"

3. Clear the Prefect storage cache:

bash
rm -rf ~/.prefect/storage/*

4. Create the deployment fresh:

bash
prefect deploy

5. Verify the change took effect:

bash
prefect deployment inspect image-customization --json

If it's still not picking up the correct branch, you can try these additional steps: 1. Create a new deployment with a different name to avoid any caching issues:

yaml
deployments:
  - name: "image-customization-v2"  # New name
    # ... rest of the configuration

2. Or, you can try setting the branch explicitly in the git clone step in your yaml:

yaml
deployments:
  - name: "image-customization"
    # ... other configuration ...
    steps:
      - prefect.deployments.steps.git_clone:
          id: clone-step
          repository: "<https://github.com/calmtales/workflows.git>"
          credentials: "{{ prefect.blocks.github-credentials.github-token }}"
          branch: "self-hosted"

After making these changes, deploy again and inspect to verify the branch has been updated. If you're still seeing the old branch, there might be a caching issue at the worker level. In that case, you might need to restart your worker as well:

bash
prefect worker stop
prefect worker start -p "local-pool"