<@ULVA73B9P> can you give me an example template J...
# ask-marvin
j
@Marvin can you give me an example template JSON file to use in a
prefect_work_pool
resource
base_job_template
in Terraform as documented here: https://registry.terraform.io/providers/PrefectHQ/prefect/latest/docs/resources/work_pool#base_job_template My work pool is of
type = "cloud-run"
m
It seems that the system provided an incorrect example that doesn't relate to your specific request. Instead of providing the intended Terraform JSON template for the
prefect_work_pool
resource's
base_job_template
with
type
set to
"cloud-run"
, it gave a basic Python example from Prefect. Unfortunately, I don't have direct access to create custom JSON templates, but I can guide you through what such a template might look like based on standard practice and documentation. Here's a general structure you can use to create a JSON
base_job_template
for a Prefect work pool of
type = "cloud-run"
. This is not an exhaustive or precise example; you will need to adjust it according to your specific Google Cloud Run configurations:
Copy code
json
{
  "apiVersion": "batch/v1",
  "kind": "Job",
  "metadata": {
    "generateName": "prefect-job-"
  },
  "spec": {
    "template": {
      "spec": {
        "containers": [
          {
            "image": "<http://gcr.io/project-id/your-prefect-image|gcr.io/project-id/your-prefect-image>",
            "name": "prefect-flow",
            "env": [
              {
                "name": "PREFECT__CLOUD__AGENT__LABELS",
                "value": "['your-labels']"
              }
            ]
            // Additional container configuration...
          }
        ],
        "restartPolicy": "Never"
        // Additional template specification...
      }
    }
    // Additional job specification...
  }
}
This template is generic, and it may not directly apply to your needs. It's important to customize the
"image"
with the image of your flow, add appropriate
"env"
variables, and set other relevant Kubernetes job specifications. To ensure correctness and best practices, you should consult the Prefect documentation and the Terraform Prefect provider documentation for detailed examples and guidelines tailored to your environment. If you have a more specific configuration in mind or need further assistance, it may be helpful to check both the Prefect documentation and the Terraform registry for more information, or to search for any GitHub issues that might have discussed similar configurations.
j
@Marvin could you modify that example to configure such that it provides 8000m CPU and 16Gi Memory?
m
Sure, here's the modified example of the
base_job_template
JSON, including resource requests for 8000m CPU and 16Gi Memory in a Google Cloud Run work pool (note that Kubernetes uses milliCPU where 1000m equals 1 CPU core):
Copy code
json
{
  "apiVersion": "batch/v1",
  "kind": "Job",
  "metadata": {
    "generateName": "prefect-job-"
  },
  "spec": {
    "template": {
      "spec": {
        "containers": [
          {
            "image": "<http://gcr.io/project-id/your-prefect-image|gcr.io/project-id/your-prefect-image>",
            "name": "prefect-flow",
            "resources": {
              "requests": {
                "cpu": "8000m",
                "memory": "16Gi"
              },
              "limits": {
                "cpu": "8000m",
                "memory": "16Gi"
              }
            },
            "env": [
              {
                "name": "PREFECT__CLOUD__AGENT__LABELS",
                "value": "['your-labels']"
              }
              // Additional environment variables...
            ]
            // Additional container configuration...
          }
        ],
        "restartPolicy": "Never"
        // Additional template specification...
      }
    }
    // Additional job specification...
  }
}
This JSON sets both the resource
requests
and
limits
to the same values, indicating that this job will be guaranteed to have available and will not exceed 8 CPU cores and 16Gi of Memory. Remember to replace
"<http://gcr.io/project-id/your-prefect-image|gcr.io/project-id/your-prefect-image>"
with the actual location of your Prefect image in the Google Container Registry and detail any additional container specifications or environmental variables as needed. It's important to keep in mind that depending on your specific Kubernetes cluster setup and the work your flows are performing, you may need to make additional modifications to properly integrate with your cloud environment. Always refer to your cloud provider's and Kubernetes documentation for specifics about creating and using Job resources.
j
@Marvin that gave me this error: Could not create work pool, unexpected error: status code 422 Unprocessable Entity, error={"exception_message":"Invalid request received.","exception_detail":[{"loc":["body","base_job_template"],"msg":"The
base_job_template
must contain both a
job_configuration
key and a
variables
│ key.","type":"value_error"}]
m
It seems the error message you received about being unable to create a work pool due to an "unprocessable entity" with status code 422 indicates an issue with the
base_job_template
. Specifically, the
base_job_template
must contain both a
job_configuration
key and a
variables
key. This error is related to the request body not meeting the necessary schema requirements. Unfortunately, the GitHub search did not return relevant issues directly related to this error. It might be a specific configuration issue or perhaps related to a newer feature or change that has not seen widespread discussion or reporting yet. Please ensure that your
base_job_template
is correctly configured with both a
job_configuration
key and a
variables
key as the error message suggests. If you need further assistance with this issue, please check the Prefect documentation or consider raising an issue in the Prefect GitHub repository for more specific help.
j
@Marvin can you tell me about this error? I'm trying to modify my work pool from type=cloud-run to type=cloud-run-push and getting this error:
Copy code
return worker_types_with_packages[worker_type]
           ~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
KeyError: 'cloud-run-push'
```
m
I found an issue that seems to be related to your problem, where environment variables are not coming up as expected in Google Cloud Run - push work pools, which results in a KeyError. It might be that you are encountering a similar configuration issue. Here's the issue link for reference: #11041. The KeyError: 'cloud-run-push' suggests that the worker type 'cloud-run-push' is not recognized or is not available in the current context. There may be a mismatch between the expected worker types and the worker type you are trying to use. It might be helpful to double-check the Prefect documentation or the Prefect community discourse for related issues. Another approach could be to update your Prefect version or try modifying the configuration to match the expected keys. If you are still experiencing problems, you could consider creating a new issue on the Prefect GitHub to get direct assistance from the developers.
j
@Marvin how can I tell the cloud run to generate a new job name in the base_job_template variables['properties'
m
To tell Cloud Run to generate a new job name in the
base_job_template
variables under
properties
, you might need to use templating to dynamically generate the job name each time a new job is created. The Prefect documentation suggests adding templating to the
base_job_template
to allow for dynamic variable population. Unfortunately, the specific method for generating a new job name isn't given directly in the snippets I found. However, the concept involves using placeholder values in the
base_job_template
like
{{ name }}
, which would then be replaced with a dynamically generated job name at runtime. You can define the template for job names in your
job_configuration
section:
Copy code
yaml
job_configuration:
  name: "{{ dynamic_job_name }}"
  ...
The actual dynamic value (
dynamic_job_name
) must be generated and passed to the template when the job is created. This likely involves custom logic within your Prefect configuration or code that provides the value for
dynamic_job_name
. For more detailed instructions, you should check the relevant sections of the Prefect documentation: - For general information on work pools: Work Pools - For guidance on developing a new worker type and templating: Developing a New Worker Type These documents could provide insight into how variable templating and dynamic job naming can be accomplished in Prefect. Keep in mind that you may need to customize the solution to fit your specific requirements.
j
@Marvin can you help me understand why I might be getting this error from a GCP cloud-run-v2:push work pool with this configuration (16Gi): Failed due to a
prefect-{task_name}-task0
task failure with a memory limit error (Error Code: 1). This was likely caused by running an image with a misspecified platform or architecture.
m
The error message you received indicates that there was a
task failure with a memory limit error
. This problem suggests that the memory allocated to the task was exceeded, which could be due to the task's actual memory requirements surpassing the specified limit of
16Gi
. Here are a couple of reasons why you might be seeing this error: 1. Misspecified Resource Limits: It's possible that the task you are running requires more memory than you have provisioned for it. Even though you've set a limit of
16Gi
, the task might need more memory to run successfully, or there might be an issue with how the memory limit has been specified in the configuration. 2. Incorrect Platform/Architecture Specification: The error also mentions that the failure might be caused by "running an image with a misspecified platform or architecture". This indicates a potential problem with the Docker image used for execution. If the image is built for a different platform or architecture than the one provided by GCP Cloud Run, it may not run as expected. For example, running an image built for x86_64 architecture on an arm64 platform could lead to issues. Ensure that your Docker image is correctly built for the platform you're deploying to. Also, verify that the memory limits are correctly specified and align with the task's requirements. The Prefect documentation related to managed execution and Docker images might have more information, so it could be helpful to refer to those sections: - Managed Execution Since we do not have specific documentation explaining this error in the context of GCP Cloud Run directly, you might want to also look into the GCP documentation or consider reaching out to Prefect's support channels for more detailed help, especially if your tasks demand more memory or if there's an issue with the platform or architecture specification. If the problems persist, it's also worth checking if there are constraints on work pools for your account tier, which might be affecting the execution of your tasks.
j
what architecture does cloud-run-v2:push type work pools run on?
@Marvin what architecture does cloud-run-v2:push type work pools run on?
m
The documentation does not explicitly state the architecture for
cloud-run-v2:push
type work pools on GCP Cloud Run. However, it is generally understood that Google Cloud Run supports container images built for multiple architectures, including x86_64 and arm64, and it automatically provides the infrastructure that matches the container's architecture. To determine the exact architecture that your
cloud-run-v2:push
work pool is using, you would typically look at the container image that is being deployed to that work pool. If the container image is built for a specific architecture, Google Cloud Run will allocate the resources accordingly. For more detailed information, you might want to review the Google Cloud Run documentation or the Prefect documentation on deploying to serverless workers and push work pools: - Push Work Pools - Serverless Workers If in doubt, it's a good idea to build your Docker images as multi-architecture images to ensure compatibility with different compute environments, or to specify the desired platform when building and pushing your Docker image.
j
@Marvin for a GCP cloud run v2:push work pool configuration, how can I instruct GCP to provision and tear down a networked SSD storage volume for each job run?
m
The information provided from the search results does not specifically address how to provision and tear down networked SSD storage volumes for each job run in GCP Cloud Run v2:push work pool configurations. However, in general, Google Cloud Run does not provide direct support for attaching storage volumes like SSDs to individual container instances during their runtime. Cloud Run is a stateless service, and typically, for persistent storage, it integrates with other Google Cloud services like Cloud Storage (for object storage) or Cloud SQL (for managed relational databases). To achieve the behavior of provisioning and tearing down network storage for each job run, you would likely need to implement a custom solution which may involve: 1. Creating a cloud storage resource prior to the job run, possibly via an initialization step in your Prefect flow or with Cloud Functions/Cloud Run invoking the Cloud Storage or Compute Engine API. 2. Attaching this storage to your job by mounting it in the Docker container if supported, or by making the storage accessible through the appropriate API. 3. Tearing down the cloud storage resource as a cleanup step after the job has finished, which could be another task in your Prefect flow or a separate Cloud Function/Cloud Run invocation. You may need to write custom code or use third-party tools that facilitate these actions. This approach requires careful handling of permissions, ensuring that compute instances have the rights to create and delete storage resources. Since there may be newer features or workflows, I would recommend reaching out to Prefect support or checking Google Cloud documentation on Cloud Run and Cloud Storage for the most up-to-date methods on handling dynamic storage provisioning.
j
@Marvin I get this error when attaching a gcePersistentDisk volume to my cloud run v2 containers: "Invalid JSON payload received. Unknown name "gcePersistentDisk" at 'job.template.template.volumes[0]': Cannot find field.". Details: "[{'@type': 'type.googleapis.com/google.rpc.BadRequest', 'fieldViolations': [{'field': 'job.template.template.volumes[0]', 'description': 'Invalid JSON payload received. Unknown name "gcePersistentDisk" at \'job.template.template.volumes[0]\': Cannot find field.'}]}]"
m
It appears there is a misunderstanding here. Google Cloud Run, which is a container execution environment, does not currently support attaching GCE persistent disks directly. The error message reflects this—Cloud Run does not recognize the "gcePersistentDisk" because it is not a part of the accepted Cloud Run configuration. The use of persistent disks, such as gcePersistentDisk, is a feature of Google Kubernetes Engine (GKE), not Google Cloud Run. In GKE, persistent volumes can be attached to pods using Kubernetes' volume management features, but Cloud Run is designed to be stateless and does not offer the same volume attachment capabilities. Cloud Run v2, as of my knowledge cutoff in April 2023, continues to be stateless, and any data persistence should be handled externally using services like Cloud Storage, Cloud SQL, or other managed data services that provide APIs for storage. If you require persistent disk storage for your containers, you might need to consider using GKE or another orchestration system that supports stateful workloads. Here is the guide on Kubernetes deployment with Prefect if you're interested, though keep in mind it's not directly applicable to Cloud Run: - Kubernetes with Prefect For the most accurate and up-to-date information about Cloud Run's capabilities and constraints, it's best to refer directly to the Google Cloud Run documentation. If persistent disk storage is now supported by Cloud Run v2, they would provide the specific JSON configuration needed to deploy such a solution.
j
@Marvin how can I declare a cloud storage volume to add to my template work-pool-template.json when using a GCP cloud run v2:push work pool
m
It appears the search did not provide specific information on how to declare a Cloud Storage volume in the
work-pool-template.json
for a GCP Cloud Run v2:push work pool. However, as previously mentioned, Google Cloud Run is designed to be stateless, and the typical method for accessing storage in a stateless environment like Cloud Run is through the use of Google Cloud Storage. Instead of mounting a volume, Cloud Run workloads would access Cloud Storage using the Google Cloud client libraries available in your programming language of choice. To access Cloud Storage from a Cloud Run instance, you would generally: 1. Include the necessary Google Cloud client library in your application to interact with Cloud Storage. For example, for Python, you could use
google-cloud-storage
. 2. Authenticate to Google Cloud within your application, which can be done automatically on Cloud Run if your Cloud Run service is running with a service account that has the appropriate permissions to access the storage bucket. 3. Use the Google Cloud client library to read from or write to the storage bucket as needed by your application logic. Here's an example using Python to access a Cloud Storage bucket:
Copy code
python
from google.cloud import storage

def access_gcs_bucket(bucket_name):
    storage_client = storage.Client()
    bucket = storage_client.get_bucket(bucket_name)
    blobs = bucket.list_blobs()
    for blob in blobs:
        print(blob.name)
Make sure the service account associated with your Cloud Run service or your workload has permissions like
Storage Object Viewer
and
Storage Object Creator
for the Cloud Storage buckets upon which you'll be operating. Regarding using
work-pool-template.json
specifically, you would not typically declare a Google Cloud Storage bucket in such a file because the work pool template pertains to Cloud Run configurations that do not support volume attachments directly. Instead, you define the necessary environment variables or pass in service account credentials if needed for the Google Cloud client libraries within your application code. For more detailed guidance on using Cloud Storage with Cloud Run, refer to the Google Cloud documentation on: - Cloud Run - Google Cloud Storage
j
@Marvin GCP says that cloud run supports using cloud storage as a volume mount here: https://cloud.google.com/run/docs/configuring/services/cloud-storage-volume-mounts
m
Thank you for providing the link. Google Cloud Run's support for using Cloud Storage as a volume mount is a great feature for applications that need persistent storage or need to share data between instances. To declare a Cloud Storage volume mount in your
work-pool-template.json
for a GCP Cloud Run v2:push work pool, you would follow the guidelines provided in the Cloud Run documentation. As per the documentation, it involves updating the
volumes
and
volumeMounts
configuration in your Cloud Run service YAML manifest. Here is an example of how a volume could be declared with Cloud Storage:
Copy code
json
{
  "apiVersion": "<http://run.googleapis.com/v2|run.googleapis.com/v2>",
  "kind": "Job",
  "metadata": {
    "name": "my-job"
  },
  "template": {
    "volumes": [
      {
        "name": "my-volume",
        "csi": {
          "driver": "<http://csi.storage.gke.io|csi.storage.gke.io>",
          "readOnly": true,
          "volumeAttributes": {
            "bucket": "BUCKET_NAME"
          }
        }
      }
    ],
    "containers": [
      {
        "name": "my-container",
        "image": "<http://gcr.io/my-project/my-image|gcr.io/my-project/my-image>",
        "volumeMounts": [
          {
            "mountPath": "/mnt/gcs",
            "name": "my-volume"
          }
        ]
      }
    ]
  }
}
Replace
BUCKET_NAME
with the name of your Cloud Storage bucket and customize the
mountPath
to the directory where you want the volume to be mounted inside your container. When using this configuration in a
work-pool-template.json
file, it would be similar, but make sure to align the format with the work pool template specifications and provide all the necessary fields. For the most accurate and detailed information on how to do this, refer to the Cloud Run documentation for configuring services to use Cloud Storage as a volume mount, as there might be additional steps or nuances depending on your specific use case.
j
@Marvin that gives me this error: Flow run could not be submitted to infrastructure: <https://run.googleapis.com/v2/projects/blumen-378818/locations/us-central1/jobs?jobId=prefect-yellow-bee&amp;alt=json%7C&lt;&gt;redacted> returned "Invalid JSON payload received. Unknown name "csi" at 'job.template.template.volumes[0]': Cannot find field.". Details: "[{'@type': 'type.googleapis.com/google.rpc.BadRequest', 'fieldViolations': [{'field': 'job.template.template.volumes[0]', 'description': 'Invalid JSON payload received. Unknown name "csi" at \'job.template.template.volumes[0]\': Cannot find field.'}]}]">
m
It looks like the JSON payload submitted to the Google Cloud Run API contained a field that is not recognized, specifically the "csi" field within the "volumes" configuration. It's possible that the format of the payload doesn't match what the Google Cloud Run v2 API is expecting or that the "csi" volume feature is not available in the version of the API you are using. Make sure you're using the correct Cloud Run API version that supports CSI volumes and that the format of the JSON matches the API's specification. If the feature has been recently released or updated, the API and its documentation may be in the process of being updated, and there could be discrepancies or delays in feature availability in certain regions or projects. I recommend verifying the following: 1. Check if there are any regional limitations or restrictions for using CSI volumes with Cloud Run in your project's location. 2. Ensure that you are using the correct and latest version of the Google Cloud Run API that supports specifying "csi" in the volumes configuration. 3. Review your JSON payload against the latest API reference or SDK documentation to confirm that the structure and fields are correct. 4. You may need to locally store the correct base work pool template that includes the required fields and format for declaring a Cloud Storage volume. Unfortunately, I'm not able to directly check the current APIs and their documentation. I would encourage you to check the latest Google Cloud Run API documentation or reach out to Google Cloud Support for assistance with the correct payload formatting and feature availability. For the most accurate solution, it may be necessary to contact Google Cloud Support or ask for assistance in relevant Google Cloud developer community forums.
j
@Marvin how can I tell my work pool to use the beta version of cloud run v2
m
The search didn't return specific documentation on configuring work pools to use beta features of GCP Cloud Run. However, typically, to use beta features in a cloud provider's offering, you would specify that you want to use the beta version within the service's command line interactions or when setting up the service through its configuration. In some cases, when using the command line (like gcloud CLI for Google Cloud), to access beta features, you would use the
beta
command like so:
Copy code
bash
gcloud beta run ...
For Prefect work pools that interface with GCP Cloud Run, there might be an equivalent setting or flag in Prefect's configuration to indicate that you want to use the beta version of the service. Since the documentation does not explicitly provide the method to tell your work pool to use the beta version of Cloud Run, it would be best to do the following: - Review any recent Prefect changelogs or announcements for guidance on using beta features, such as in the changelog for version 2.14.11. - Consult the Prefect community or support channels to ask how to configure work pools to use the beta version of a service like GCP Cloud Run. - Check if there are configuration options within Prefect's
work-pool
command or within the Prefect Cloud UI for specifying the GCP Cloud Run beta. Keep in mind that because beta features can introduce changes and potentially unstable behavior, always test thoroughly before using these features in a production environment.
j
@Marvin is there a way for me to call some code that will mount a volume to a cloud run v2 container after the job container has been initialized but before it begins execution of a flow?
m
In Google Cloud Run, volumes are typically defined within the service configuration and thus must be specified before the container starts. As of now, Google Cloud Run does not have a feature that allows for the dynamic attachment of volumes after a container has already been initialized. However, when you deploy your container to Cloud Run, you can define mounting points linking to specific Cloud Storage buckets using the built-in integration with Google Cloud Storage. Here's a rough idea of how that works: 1. You must grant the Cloud Run container the necessary IAM role to allow it to access the specified Cloud Storage bucket. 2. In your Cloud Run service's configuration file, you define the volumes and the mount path which will reflect inside your running container. Here is a YAML configuration example with the Cloud Storage volume mount:
Copy code
yaml
apiVersion: serving.knative.dev/v1
kind: Service
metadata:
  name: service-name
  namespace: 'project-id'
spec:
  template:
    spec:
      containers:
      - image: <http://gcr.io/project-id/image-name|gcr.io/project-id/image-name>
        volumeMounts:
        - name: data
          mountPath: /data
      volumes:
      - name: data
        secret:
          secretName: storage-bucket-name
The
volumeMounts
field is where you define your mount into the container file system and
volumes
defines the actual Cloud Storage bucket you're linking to. This setup should be defined when deploying your service or when updating its configuration. If you need to run some initialization code inside your Cloud Run container before the actual application starts, you can handle that within your container's entrypoint script. This entrypoint would first execute any preparation code you require, and then proceed to start your main application. However, if you're looking for something akin to an init container in Kubernetes, which can run setup scripts before the application container starts, this is not something that Cloud Run currently supports as it is not the same as the Kubernetes model and is designed primarily for stateless applications. As such, all mount points should be configured statically through the deployment manifest and cannot be altered once the container is running. If this changes in the future or if you have additional needs that the current capability doesn't address, Google Cloud's documentation or support might provide newer solutions.
j
@Marvin that is for kubernetes, not Cloud Run
m
I apologize for the confusion. Indeed, the example I provided earlier pertains to Kubernetes, not Cloud Run. For Google Cloud Run, the service configuration must include all the necessary settings before the container is started, as Cloud Run's containers are immutable once they have been deployed. There is currently no native mechanism provided by Cloud Run to execute code that would modify the container after initialization and before flow execution begins. Mounting volumes in Cloud Run, specifically, refers to using Google Cloud Storage buckets as mountable resources, and this must be configured within the Cloud Run service configuration before deployment. Here’s how you can define a Google Cloud Storage volume in your Cloud Run service deployment: 1. Define your Cloud Run service specification and include the volume configuration that references a Google Cloud Storage bucket:
Copy code
yaml
apiVersion: serving.knative.dev/v1
kind: Service
metadata:
  name: service-name
  namespace: 'project-id'
spec:
  template:
    spec:
      containerConcurrency: 80
      containers:
      - image: <http://gcr.io/project-id/image-name|gcr.io/project-id/image-name>
        volumeMounts:
          - name: my-volume
            mountPath: /path/to/mount
      volumes:
        - name: my-volume
          gcs:
            bucket: 'my-bucket'
            type: 'read_only' # or 'read_write'
2. Apply this configuration using gcloud or the web console when creating or updating your Cloud Run service. If you want to run initialization code before your main application starts within a Cloud Run container, you should incorporate this process into your Dockerfile's CMD or the script that is set as the entrypoint. This way, any preliminary setup tasks can be performed by the entrypoint script, and once completed, the main application will start. Unfortunately, any adjustments to mounting or altering the runtime environment of the container must be handled ahead of time during the build or deployment process due to the nature of Cloud Run's architecture. If you need behavior that requires more dynamic adjustments at startup, you might have to explore alternative options like Google Kubernetes Engine (GKE), which offers more flexibility in this regard, or implement an application-level solution that pulls necessary resources from Cloud Storage at runtime.
j
@Marvin in my work-pool-template.json file, how can I declaratively say that I want to use the
gcloud beta
environment for my services, in order to mount a cloud storage volume as documented here: https://cloud.google.com/run/docs/configuring/services/cloud-storage-volume-mounts
m
To specify that you want to use the
gcloud beta
environment and mount a Cloud Storage volume as per the documentation provided, you would need to ensure that your
work-pool-template.json
includes the appropriate configuration for a Cloud Storage volume mount. However, it's important to note that the beta features of GCP products are typically configured through the
gcloud beta
command-line tool or through the Google Cloud Console and might not be directly supported through Prefect configuration files like
work-pool-template.json
. Here’s a generalized example of what the service configuration might look like when using the gcloud command-line tool with the beta version to deploy a Cloud Run service with a mounted Cloud Storage volume:
Copy code
bash
gcloud beta run services update SERVICE_NAME \
  --update-secrets=/mounted-path=SECRET_NAME:latest \
  --region=REGION \
  --project=PROJECT_ID
This command line interface example performs an in-place update of an existing Cloud Run service, mounting a secret into the specified path. For beta features, the deployment must be done through
gcloud beta
to use the unreleased features that are not in the stable release. For declaratively stating the use of
gcloud beta
in a JSON configuration file, there may not be a direct method to do so since these configuration files define the end state of resources and do not dictate the tooling used to achieve that state. Therefore, if you wish to use beta features, you will likely need to interact with the
gcloud beta
CLI or console directly until such features make it into the stable API and are supported in declarative JSON templates. To use beta features, ensure you have the latest version of the gcloud CLI installed and initialize it with beta components:
Copy code
bash
gcloud components install beta
gcloud components update
Then you would interact with the beta commands as needed for your use case. Please refer to Google Cloud’s documentation and beta command-line tool help (
gcloud beta --help
) for information on the specific flags and configurations supported in the beta environment. In case there has been a recent update that allows for specifying beta features in configuration files, I recommend checking the Google Cloud documentation or contacting Google Cloud support for the most accurate information.
j
@Marvin how could I get a prefect hook telling me the service name of a deployment that is running, so I could call the
gcloud beta run services update
command you sent
m
To get the service name of a deployment running in Prefect, you could use the Prefect CLI or Prefect Client in your Python code. Prefect does not appear to have a specific hook that provides the service name directly, as service names are part of the infrastructure configuration rather than the Prefect core API. However, you can interact with Prefect to fetch deployment details. If you are using the Prefect CLI, you may be able to retrieve deployment information, including the service name, using the following command:
Copy code
bash
prefect deployment inspect '<DEPLOYMENT_NAME>'
Using the Prefect Client within your Python code, you can retrieve information about your deployments with something like the following example:
Copy code
python
from prefect import Client

client = Client()

# You will need the deployment ID or name to retrieve its details
deployment_id = 'your-deployment-id'

# Retrieve the deployment information
deployment_info = client.get_deployment(deployment_id=deployment_id)
print(deployment_info)
Within the retrieved deployment information, you may find the service name or other related details that would then allow you to construct your
gcloud beta
command accordingly. Remember to replace
'your-deployment-id'
with the actual deployment ID or use the deployment name as appropriate for your situation. The Prefect UI may also provide the service name and related details for each deployment, accessible through the interface under your workspace and deployment details. For the most accurate and specific information about interacting with deployments in Prefect, please consult the Prefect documentation on deployments. If necessary, you can extend Prefect's functionality through custom scripts or by contributing to the Prefect project to handle scenarios like extracting and using the service name dynamically.
j
@Marvin what if I want to get the name of the currently running cloud run service
m
To get the name of the currently running Cloud Run service within a Prefect flow, you wouldn't typically be able to fetch it from within the Prefect API directly, since the service name is a part of the GCP configuration. However, in a Cloud Run environment, you can determine the service name programmatically by using the
K_SERVICE
environment variable, which Cloud Run automatically populates with the name of the service. Here is a decorated Python function that retrieves the Cloud Run service name from the environment:
Copy code
python
import os
from prefect import flow

@flow
def get_cloud_run_service_name():
    service_name = os.getenv('K_SERVICE')
    print(f"The current Cloud Run service name is: {service_name}")
    return service_name

if __name__ == "__main__":
    service_name = get_cloud_run_service_name()
    # Additional code to handle the service_name
When this Prefect flow runs on Cloud Run, it will print and return the name of the current Cloud Run service. If the flow is not running inside Cloud Run,
service_name
will be
None
. Remember, when running this code outside of Cloud Run for testing purposes, you will need to mock or manually set the
K_SERVICE
environment variable. If the environment variable is not set,
service_name
will be
None
.
j
@Marvin neither K_SERVICE or the CLOUD_RUN_JOB variables seem to be set in my containers, running from a Cloud Run v2:push work pool. Can you help me understand why?
m
The search results do not provide a specific explanation for why
K_SERVICE
or
CLOUD_RUN_JOB
environment variables might not be set in your containers that are running from a Cloud Run v2:push work pool. Normally, in a standard Google Cloud Run (v1) environment, some environment variables like
K_SERVICE
are automatically populated by the platform to provide context about the running service. However, Cloud Run Jobs (v2) and the execution model used within a v2:push work pool may handle environment variables differently or may not set them at all, especially if they don't align with the stateless design of Cloud Run. Here are some potential reasons why those environment variables might not be set: 1. Version Differences: The behavior of environment variables might differ between Cloud Run (v1) and Cloud Run Jobs (v2). The automatic setting of certain variables may not be implemented in Cloud Run v2. 2. Configuration Issues: It's possible that there might be a specific way to configure these environment variables within Cloud Run Jobs (v2) that hasn't been applied. 3. Different Execution Context: If the work pool is launching jobs that aren't classified as "services" by Cloud Run, it might not set service-related environment variables like
K_SERVICE
. 4. Platform Updates: If Cloud Run v2 is new or has been updated recently, it's possible that certain features are still being rolled out or documented, and behavior can change. 5. Documentation: There may be a lack of updated documentation on the new behaviors and configurations in Cloud Run v2:push work pools. As a result, the setting of environment variables can be unclear. To troubleshoot this issue further: - You could reach out to Google Cloud Support for assistance specific to Cloud Run v2 and why those environment variables are not present. - You may also want to ask in the Google Cloud community forums where there may be discussions about similar issues or recent platform changes. - Review the Cloud Run v2 documentation or release notes for any recent updates that may provide details on working with environment variables in this context. If this is a recurrent issue that is not addressed in the documentation and there is no apparent solution, consider reporting it to Google Cloud as feedback about the Cloud Run v2 feature set.