Bug: Error unmarshalling App/Installation ID when configured through environment variables

[Tate-CC]

I'm trying to provision a GitHub data source from a config file, using environment variables to substitute in the secret values. The issue I'm hitting is that the App and Installation IDs are numeric strings and I can't get the config to interpret them as strings.

The exact error I'm getting is:

json: cannot unmarshal number into Go struct field Settings.appId of type string

My config file looks like this:

apiVersion: 1
datasources:
  - name: GitHub
    type: grafana-github-datasource
    jsonData:
      selectedAuthType: github-app
      appId: $GITHUB_APP_ID
      installationId: $GITHUB_INSTALLATION_ID
    secureJsonData:
      privateKey: $GITHUB_PRIVATE_KEY

And my environment variables look like:

GITHUB_APP_ID=1111111
GITHUB_INSTALLATION_ID=11111111

I've also tried wrapping the variable in quotes but this causes a parse error, and I've tried wrapping the config value in quotes but that didn't seem to make a difference.

[yesoreyeram]

I am able to reproduce this issue.

provisioning file

apiVersion: 1
datasources:
  - name: GitHub
    type: grafana-github-datasource
    jsonData:
      selectedAuthType: github-app
      appId: $GITHUB_APP_ID
      installationId: $GITHUB_INSTALLATION_ID
    secureJsonData:
      privateKey: $GITHUB_PRIVATE_KEY

docker compose file

services:
  grafana:
    container_name: 'grafana-github-datasource'
    image: grafana/grafana-enterprise:${GF_VERSION:-main}
    ports:
      - 3000:3000/tcp
    volumes:
      - ./dist:/var/lib/grafana/plugins/grafana-github-datasource
      - ./provisioning:/etc/grafana/provisioning
    environment:
      GITHUB_APP_ID: "1231"
      GITHUB_INSTALLATION_ID: "3211"
      GITHUB_PRIVATE_KEY: xyx
      NODE_ENV: development
      GF_DATAPROXY_LOGGING: 1
      GF_PLUGINS_ALLOW_LOADING_UNSIGNED_PLUGINS: grafana-github-datasource

Logs

grafana-github-datasource  | logger=plugin.grafana-github-datasource t=2025-06-06T10:05:43.712114422Z level=error msg=DEBUGGING DecryptedSecureJSONData=map[privateKey:xyx] JSONData="{\"appId\":1231,\"installationId\":3211,\"selectedAuthType\":\"github-app\"}"