Grafana Enterprise Logs is the commercial distribution of Loki.

Quickstart

Run GEL 1.5.2 with Podman - for testing only! (no persistence)

cat > config.yaml <<EOF
auth_enabled: false

server:
  http_listen_port: 3100

ingester:
  lifecycler:
    address: 127.0.0.1
    ring:
      kvstore:
        store: inmemory
      replication_factor: 1
    final_sleep: 0s
  chunk_idle_period: 5m
  chunk_retain_period: 30s

schema_config:
  configs:
  - from: 2020-05-15
    store: boltdb
    object_store: filesystem
    schema: v11
    index:
      prefix: index_
      period: 168h

storage_config:
  boltdb:
    directory: /tmp/loki/index

  filesystem:
    directory: /tmp/loki/chunks

limits_config:
  enforce_metric_name: false
  reject_old_samples: true
  reject_old_samples_max_age: 168h
EOF

podman run -it -p 3100:3100 -v $(pwd)/config.yaml:/etc/loki/config.yaml grafana/enterprise-logs:v1.5.2 -config.file=/etc/loki/config.yaml

Targets

Here are the targets available in the enterprise-logs image:

$ podman run docker.io/grafana/enterprise-logs:v1.7.3 -config.file=/etc/enterprise-logs/local-config.yaml -list-targets
admin-api
  usage
all
  admin-api
  cache-generation-loader
  compactor
  distributor
  ingester
  ingester-querier
  label-access
  label-access-ingester-wrapper
  querier
  query-frontend
  query-scheduler
  ruler
  usage
  usage-report
backend
  compactor
  index-gateway
  ingester-querier
  query-scheduler
  ruler
  usage
  usage-report
cache-generation-loader
compactor
  usage
  usage-report
distributor
  usage
  usage-report
gateway
  usage
index-gateway
  usage-report
ingester
  label-access-ingester-wrapper
  usage-report
ingester-querier
label-access
label-access-ingester-wrapper
overrides-exporter
querier
  cache-generation-loader
  ingester-querier
  label-access
  query-scheduler
  usage
  usage-report
query-frontend
  cache-generation-loader
  query-scheduler
  usage
  usage-report
query-scheduler
  usage-report
read
  admin-api
  cache-generation-loader
  compactor
  index-gateway
  ingester-querier
  label-access
  querier
  query-frontend
  query-scheduler
  ruler
  usage
  usage-report
ruler
  ingester-querier
  usage-report
table-manager
  usage-report
tokengen
usage
usage-report
write
  admin-api
  distributor
  ingester
  label-access-ingester-wrapper
  usage
  usage-report

Deployment

Inspect the Helm chart

Inspect the Kubernetes resources that would be deployed using the Helm chart:

helm repo add grafana https://grafana.github.io/helm-charts
helm repo update
helm template myloki grafana/loki --set enterprise.enabled=true > output.yaml

Deploy GEL 1.5.2 with Tanka

An example Tanka override override file environments/enterprise-logs/main.jsonnet:

local gel = import 'github.com/grafana/loki/production/ksonnet/enterprise-logs/main.libsonnet';

gel {
  _config+:: {
    commonArgs+:: {
      'admin.client.backend-type': 's3',
      'admin.client.s3.access-key-id': 'minio',
      'admin.client.s3.bucket-name': 'grafana-logs-admin',
      'admin.client.s3.endpoint': 'minio:9000',
      'admin.client.s3.insecure': true,
      'admin.client.s3.secret-access-key': 'minio123',
      'cluster-name': 'mygelcluster',
    },

    namespace: 'enterprise-logs',

    boltdb_shipper_shared_store: 's3',
    storage_backend: 's3',
    s3_access_key: 'minio',
    s3_address: 'minio:9000',
    s3_bucket_name: 'grafana-logs-data',
    s3_secret_access_key: 'minio123',

    ingester_pvc_class: 'standard'

  },

  _images+:: {
    loki: 'grafana/enterprise-logs:v1.5.2'
  },

  // Deploy tokengen Job available on a first run.
  tokengen_job+::: {},
}

Cookbook

Access policies and tokens

Update an access policy (v3 API)

This will create an access policy that allows reading and writing of logs in the cluster named myclustername, across all tenants.

curl -u ":${GEL_ADMIN_TOKEN}" "http://${GEL_IP}:8100/admin/api/v3/accesspolicies/test1" -XPUT \
    -H 'If-Match: "1"' \
    --data @- <<'EOF'
{
    "name": "test1",
    "status": "active",
    "display_name": "Test access policy",
    "realms": [{"tenant": "*", "cluster": "myclustername"}],
    "scopes": ["logs:read", "logs:write"]
}
EOF

Create an access policy scoped to a label selector

This will allow users with a token based on this access policy, to only view logs labelled with {environment="dev"}

curl -u ":${GEL_ADMIN_TOKEN}" "http://${gel_public_ip}:8100/admin/api/v3/accesspolicies" --data @- <<EOF
{
    "name": "${access_policy_name}",
    "display_name": "My LBAC based access policy",
    "created_at": "2021-02-01T17:37:59.341728283Z",
    "realms": [
        {
            "tenant": "${tenant_name}",
            "cluster": "${cluster_name}",
            "label_policies": [ 
                { 
                    "selector": "{environment=\"dev\"}"
                }
            ]
        }
    ],
    "scopes": ["logs:read"]
}
EOF

Create a token

This will create a token token-12345 using the access policy test1 which was created above:

(
  curl -u ":${GEL_ADMIN_TOKEN}" "http://${GEL_IP}:8100/admin/api/v3/tokens" \
    --data @- <<EOF
{
    "name": "test-$RANDOM",
    "display_name": "Tom's token",
    "access_policy": "test1",
    "created_at": "$(date -u +%Y-%m-%dT%H:%M:%SZ)",
    "expiration": "2028-01-01T00:00:00.341728283Z"
}
EOF
) | jq -r '.token'

curl -u ":${GEL_ADMIN_TOKEN}" "http://${GEL_IP}:8100/admin/api/v3/tokens" \
    --data @- <<EOF | jq -r '.token'
{
    "name": "test-$RANDOM",
    "display_name": "Tom's token",
    "access_policy": "test1",
    "created_at": "$(date -u +%Y-%m-%dT%H:%M:%SZ)",
    "expiration": "2028-01-01T00:00:00.341728283Z"
}
EOF

Tenant management

Get tenants

export GEL_ADMIN_TOKEN=token_of_your_admin_user

curl -u :$GEL_ADMIN_TOKEN http://localhost:8100/admin/api/v3/tenants

Sending logs

Push 2 log entries into a GEL cluster deployed on Kubernetes (with authentication)

kubectl -n gel port-forward svc/ge-logs 8100

export GEL_ENDPOINT=localhost:8100
export GEL_PUSH_TOKEN=your_auth_token_goes_here
export GEL_TEST_TIME=$(date +%s%N)

# Your tenant ID is just the name of the tenant in GEL
export GEL_TENANT_ID=healingcrystals

curl -v -u ${GEL_TENANT_ID}:${GEL_PUSH_TOKEN} \
  -H "Content-Type: application/json" \
  -H "X-Scope-OrdID: ${GEL_TENANT_ID}" \
  -X POST \
  http://${GEL_ENDPOINT}/loki/api/v1/push --data @- <<EOF
{
  "streams": [
    {
      "stream": {
        "job": "test_job",
        "meal": "breakfast"
      },
      "values": [
          [ "${GEL_TEST_TIME}", "my log line is here" ],
          [ "${GEL_TEST_TIME}", "peanut butter on toast" ]
      ]
    }
  ]
}
EOF