Gcp Pubsub Emulator

score.yaml (view on GitHub) :

apiVersion: score.dev/v1b1
metadata:
  name: my-workload
containers:
  my-container:
    image: busybox
    command: ["/bin/sh"]
    args: ["-c", "while true; do echo $PUBSUB_EMULATOR_HOST; sleep 5; done"]
    variables:
      PUBSUB_HOST: "${resources.pubsub.host}"
      PUBSUB_PORT: "${resources.pubsub.port}"
      PUBSUB_PROJECT_ID: "${resources.pubsub.project_id}"
      PUBSUB_EMULATOR_HOST: "${resources.pubsub.emulator_host}"
resources:
  pubsub:
    type: gcp-pubsub-emulator
    params:
      project_id: my-test-project

score-compose
score-k8s

10-gcp-pubsub-emulator.provisioners.yaml (view on GitHub) :

# GCP Pub/Sub Emulator provisioner
# For local development and testing without connecting to real GCP
- uri: template://community-provisioners/gcp-pubsub-emulator
  type: gcp-pubsub-emulator
  description: Generates a Google Cloud Pub/Sub Emulator service for local development.
  supported_params:
    - project_id
  init: |
    port: 8085
    randomServiceName: pubsub-emulator-{{ randAlphaNum 6 | lower }}
    defaultProjectId: test-project-{{ randAlphaNum 6 | lower }}    
  state: |
    serviceName: {{ dig "serviceName" .Init.randomServiceName .State | quote }}
    projectId: {{ dig "projectId" (.Params.project_id | default .Init.defaultProjectId) .State | quote }}    
  outputs: |
    host: {{ .State.serviceName }}
    port: {{ .Init.port }}
    project_id: {{ .State.projectId }}
    emulator_host: {{ .State.serviceName }}:{{ .Init.port }}    
  expected_outputs:
    - host
    - port
    - project_id
    - emulator_host
  services: |
    {{ .State.serviceName }}:
      labels:
        dev.score.compose.res.uid: {{ .Uid }}
      image: gcr.io/google.com/cloudsdktool/google-cloud-cli:emulators
      command:
        - gcloud
        - beta
        - emulators
        - pubsub
        - start
        - --host-port=0.0.0.0:{{ .Init.port }}
        - --project={{ .State.projectId }}
      restart: always    
  info_logs: |
    - "{{ .Uid }}: Pub/Sub Emulator is running at {{ .State.serviceName }}:{{ .Init.port }}"

Initialize your local workspace, by importing a specific community provisioner:

score-compose init --provisioners REPLACE-ME-WITH-ACTUAL-PROVISIONER-FILE-URL.yaml

Note: you need to replace REPLACE-ME-WITH-ACTUAL-PROVISIONER-FILE-URL.yaml by the actual provisioner file you want to use and import. More information here.

Get the provisioners definition:

score-compose provisioners list

Generate the platform specific manifests:

score-compose generate score.yaml

See the resource outputs:

score-compose resources list

You can run the following command on each resource listed with the previous command to get their outputs:

score-compose resources get-outputs

Deploy the generated manifests:

docker compose up -d

See the running containers:

docker ps