Bare minimum docker-compose sample for EXPORTER/LOKI

[cilerler]

Component(s)

exporter/loki

Describe the issue you're reporting

I am trying to export logs through OTEL-COLLECTOR to LOKI via the LOKI-EXPORTER. With the setup below, I see the logs in the OTEL-COLLECTOR container, but not in LOKI. As far as I can tell, there is no immediate visible error. I would thoroughly appreciate any help to point me in the right direction to make this work.

docker-compose.yml

```yaml version: '3.8' networks: default: name: my_network driver: bridge services: otel-collector: container_name: otel-collector image: otel/opentelemetry-collector-contrib:0.88.0 restart: always command: ["--config=/etc/otel-collector-config.yaml", ""] volumes: - ./config/otel-collector.yaml:/etc/otel-collector-config.yaml ports: - 1888 # pprof extension - 8888 # Prometheus metrics exposed by the Collector - 8889 # Prometheus exporter metrics - 13133 # health_check extension - 4317:4317 # OTLP gRPC receiver - 4318:4318 # OTLP http receiver - 55679 # zpages extension depends_on: - loki minio: container_name: minio image: minio/minio:latest entrypoint: - sh - -euc - | mkdir -p /data/loki-data && \ mkdir -p /data/loki-ruler && \ mkdir -p /data/tempo && \ minio server /data \ --console-address ':9001' environment: - MINIO_ROOT_USER=minio - MINIO_ROOT_PASSWORD=minio123 - MINIO_PROMETHEUS_AUTH_TYPE=public ports: - 9001 loki: container_name: loki image: grafana/loki:latest command: "-config.file=/etc/loki/config.yaml" ports: - 3100 - 7946 - 9095 volumes: - ./config/loki.yml:/etc/loki/config.yaml depends_on: - minio grafana: container_name: grafana image: grafana/grafana:latest environment: - GF_PATHS_PROVISIONING=/etc/grafana/provisioning - GF_AUTH_ANONYMOUS_ENABLED=true - GF_AUTH_ANONYMOUS_ORG_ROLE=Admin - GF_AUTH_DISABLE_LOGIN_FORM=true - GF_FEATURE_TOGGLES_ENABLE=traceqlEditor ports: - "3000:3000" volumes: - ./config/grafana-datasources.yml:/etc/grafana/provisioning/datasources/ds.yaml depends_on: - loki ```

config/otel-collector.yml

```yaml receivers: otlp: protocols: grpc: exporters: debug: verbosity: detailed loki: endpoint: http://loki:3100/loki/api/v1/push tls: insecure: true headers: "X-Scope-OrgID": "1" default_labels_enabled: exporter: true job: true instance: true level: true processors: batch: attributes: actions: - action: insert key: loki.attribute.labels value: test resource: attributes: - action: insert key: loki.resource.labels value: test service: pipelines: logs: receivers: [otlp] processors: [batch, resource, attributes] exporters: [debug, loki] ```

config/loki.yml

```yaml server: http_listen_port: 3100 schema_config: configs: - from: 2021-08-01 store: boltdb-shipper object_store: s3 schema: v11 index: prefix: index_ period: 24h common: path_prefix: /loki replication_factor: 1 storage: s3: endpoint: minio:9000 insecure: true bucketnames: loki-data access_key_id: minio secret_access_key: minio123 s3forcepathstyle: true ring: kvstore: store: memberlist ruler: storage: s3: bucketnames: loki-ruler ```

config/grafana-datasource.yml

```yml apiVersion: 1 datasources: - name: Loki uid: loki type: loki isDefault: true version: 1 editable: false access: proxy url: http://loki:3100 jsonData: derivedFields: - datasourceUid: tempo matcherRegex: "TraceId=(\\w+)" name: TraceId url: "$${__value.raw}" httpHeaderName1: "X-Scope-OrgID" secureJsonData: httpHeaderValue1: "tenant1" ```

[github-actions[bot]]

Pinging code owners:

• exporter/loki: @gramidt @gouthamve @jpkrohling @mar4uk

See Adding Labels via Comments if you do not have permissions to add labels yourself.

[jpkrohling]

"X-Scope-OrgID": "1"

httpHeaderValue1: "tenant1"

Looks like the tenant's aren't matching in the two configs?

[cilerler]

You made my day, thank you very much.

[jpkrohling]

And you've just made mine :-)

[skumarjh-tibco]

I am trying to do the setup with same files. Can you elaborate what was missing ? Thanks!

[cilerler]

    secureJsonData:
      httpHeaderValue1: "tenant1"

in config/otel-collector.yml, and

    headers:
      "X-Scope-OrgID": "1"

in config/grafana-datasource.yml

values have to match.

in other words the issue was "tenant1" != "1"

[skumarjh-tibco]

Thanks a lot! It worked.