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The local resolver lets you resolve flags locally in your network for improved performance.

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Create API Client and Credentials

1

Go to Confidence

2

Select Admin > API Clients

On the bottom of the left sidebar, select Admin > API Clients.
3

Click Create

4

Give the API client a name

For example, “local resolver.”
5

Select Admin > Policies

On the bottom of the left sidebar, select Admin > Policies.
6

Click Create

7

Add the role Flag Resolver Sidecar

Add the role “Flag Resolver Sidecar” to the principal with the name you just created, “local resolver”.
8

Click Create

Make note of the Client ID and client secret.

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Run with Docker

Set the following environment variables:
  • CONFIDENCE_REGION - Your account region (EU or US)
  • CONFIDENCE_CLIENT_ID - The client ID of the API client you created
  • CONFIDENCE_CLIENT_SECRET - The client secret of the API client you created
Run the local resolver: 
docker run -it --rm \
  -p 8090:8090 \
  -e CONFIDENCE_REGION="$CONFIDENCE_REGION" \
  -e CONFIDENCE_CLIENT_ID="$CONFIDENCE_CLIENT_ID" \
  -e CONFIDENCE_CLIENT_SECRET="$CONFIDENCE_CLIENT_SECRET" \
  europe-docker.pkg.dev/spotify-confidence/public/flags-resolver-sidecar:latest
The local resolver is available at http://localhost:8090.

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Deploy in Kubernetes

Add the sidecar container configuration to your Kubernetes pod spec: 
spec:
  containers:
  - name: my-service
    image: gcr.io/my-service/image:latest
    # whatever you already had configured

  # add this sidecar container to your pod
  - name: confidence-resolver-sidecar
    image: europe-docker.pkg.dev/spotify-confidence/public/flags-resolver-sidecar:latest
    env:
      - name: CONFIDENCE_REGION
        value: "<your-account-region>"
      - name: CONFIDENCE_CLIENT_ID
        value: "<your-api-client-id>"
      - name: CONFIDENCE_CLIENT_SECRET
        value: "<your-api-client-secret>"
    ports:
      - name: http
        containerPort: 8090
    readinessProbe:
      exec:
        command: ["/bin/grpc_health_probe", "-addr=:5990"]
      initialDelaySeconds: 5
    livenessProbe:
      exec:
        command: ["/bin/grpc_health_probe", "-addr=:5990"]
      initialDelaySeconds: 10
    resources:
      requests:
        cpu: 1
        memory: 256M
      limits:
        cpu: 2
        memory: 512M

Local Resolver Reference

Deep dive into local resolver configuration

Data Transfer

Understand flag resolution options

Manage Clients

Configure API clients and credentials

SDKs Reference

Learn about SDK integrations