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Published: Feb 7, 2023 License: Apache-2.0, BSD-3-Clause, MIT

README

Playground

The Beam Playground is a web application to run Beam code snippets in a modern browser. This directory holds code to build, test, and deploy the frontend and backend services.

Development Requirements

The following requirements are needed for development, testing, and deploying.

Available Gradle Tasks

Perform overall pre-commit checks

cd beam
./gradlew playgroundPrecommit

To see available gradle tasks for playground:

cd beam
./gradlew playground:tasks

Re-generate protobuf

cd beam
./gradlew playground:generateProto

Run local environment using docker compose

Router only

Start:

cd beam
./gradlew playground:backend:containers:router:dockerComposeLocalUp

Stop:

cd beam
./gradlew playground:backend:containers:router:dockerComposeLocalDown
Router, runners, and frontend
  1. Edit /playground/frontend/lib/config.g.dart to set your local backend host and ports found in /playground/docker-compose.local.yaml.
  2. To start, run:
cd beam
./gradlew playground:dockerComposeLocalUp
  1. To stop, run:
cd beam
./gradlew playground:dockerComposeLocalDown

If you do not need particular runners, comment out:

  1. Dependencies on them in /playground/build.gradle.kts in dockerComposeLocalUp task.
  2. Their Docker image configurations in /playground/docker-compose.local.yaml.

Removing old snippets

Run the method to remove unused code snippets from the Cloud Datastore. Unused snippets are snippets that are out of date. If the last visited date property less or equals than the current date minus dayDiff parameter then a snippet is out of date

cd beam
./gradlew playground:backend:removeUnusedSnippet -DdayDiff={int} -DprojectId={string}

Run playground tests without cache

cd beam
 ./gradlew playground:backend:testWithoutCache

Deployment

See terraform for details on how to build and deploy the application and its dependent infrastructure.

Manual Example deployment

The following requirements are needed for deploying examples manually:

  1. GCP project with deployed Playground backend
  2. Python (3.9.x)
  3. Login into GCP (gcloud default login or using service account key)

Run example deployment script

Example deployment scripts uses following environment variables:

  • GOOGLE_CLOUD_PROJECT - GCP project id where Playground backend is deployed
  • BEAM_ROOT_DIR - root folder to search for playground examples
  • SDK_CONFIG - location of sdk and default example configuration file
  • BEAM_EXAMPLE_CATEGORIES - location of example category configuration file
  • BEAM_USE_WEBGRPC - use grpc-Web instead of grpc (default)
  • GRPC_TIMEOUT - timeout for grpc calls (defaults to 10 sec)
  • BEAM_CONCURRENCY - number of eaxmples to run in parallel (defaults to 10)
  • SERVER_ADDRESS - address of the backend runnner service for a particular SDK
usage: ci_cd.py [-h] --step {CI,CD} [--namespace NAMESPACE] --datastore-project DATASTORE_PROJECT --sdk {SDK_JAVA,SDK_GO,SDK_PYTHON,SDK_SCIO} --origin {PG_EXAMPLES,TB_EXAMPLES} --subdirs SUBDIRS [SUBDIRS ...]

CI/CD Steps for Playground objects

optional arguments:
  -h, --help            show this help message and exit
  --step {CI,CD}        CI step to verify all beam examples/tests/katas. CD step to save all beam examples/tests/katas and their outputs on the GCD
  --namespace NAMESPACE
                        Datastore namespace to use when saving data (default: Playground)
  --datastore-project DATASTORE_PROJECT
                        Datastore project to use when saving data
  --sdk {SDK_JAVA,SDK_GO,SDK_PYTHON,SDK_SCIO}
                        Supported SDKs
  --origin {PG_EXAMPLES,TB_EXAMPLES}
                        ORIGIN field of pg_examples/pg_snippets
  --subdirs SUBDIRS [SUBDIRS ...]
                        limit sub directories to walk through, relative to BEAM_ROOT_DIR

Helper script to deploy examples for all supported sdk's:

cd playground/infrastructure

export BEAM_ROOT_DIR="../../"
export SDK_CONFIG="../../playground/sdks.yaml"
export BEAM_EXAMPLE_CATEGORIES="../categories.yaml"
export BEAM_USE_WEBGRPC=yes
export BEAM_CONCURRENCY=4
export PLAYGROUND_DNS_NAME="your registered dns name for Playground"

for sdk in go java python scio; do
    export SDK=$sdk &&
    export SERVER_ADDRESS=https://${SDK}.$PLAYGROUND_DNS_NAME &&

    python3 ci_cd.py --datastore-project $GOOGLE_CLOUD_PROJECT \
                     --step CD --sdk SDK_${SDK^^} \
                     --origin PG_EXAMPLES \
                     --subdirs ./learning/katas ./examples ./sdks
done

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