使用 Loki Canary 审计数据传播延迟和正确性

---
apiVersion: v1
kind: Pod
metadata:
  labels:
    app: loki-canary
    name: loki-canary
  name: loki-canary
spec:
  containers:
  - args:
    - -addr=loki:3100
    image: grafana/loki-canary:latest
    imagePullPolicy: IfNotPresent
    name: loki-canary
    resources: {}
---
apiVersion: v1
kind: Service
metadata:
  name: loki-canary
  labels:
    app: loki-canary
spec:
  type: ClusterIP
  selector:
    app: loki-canary
  ports:
  - name: metrics
    protocol: TCP
    port: 3500
    targetPort: 3500

---
kind: DaemonSet
apiVersion: extensions/v1beta1
metadata:
  labels:
    app: loki-canary
    name: loki-canary
  name: loki-canary
spec:
  template:
    metadata:
      name: loki-canary
      labels:
        app: loki-canary
    spec:
      containers:
      - args:
        - -addr=loki:3100
        image: grafana/loki-canary:latest
        imagePullPolicy: IfNotPresent
        name: loki-canary
        resources: {}
---
apiVersion: v1
kind: Service
metadata:
  name: loki-canary
  labels:
    app: loki-canary
spec:
  type: ClusterIP
  selector:
    app: loki-canary
  ports:
  - name: metrics
    protocol: TCP
    port: 3500
    targetPort: 3500

  -addr string
    	The Loki server URL:Port, e.g. loki:3100. Loki address can also be set using the environment variable LOKI_ADDRESS.
  -buckets int
    	Number of buckets in the response_latency histogram (default 10)
  -ca-file string
    	Client certificate authority for optional use with TLS connection to Loki
  -cert-file string
    	Client PEM encoded X.509 certificate for optional use with TLS connection to Loki
  -insecure
    	Allow insecure TLS connections
  -interval duration
    	Duration between log entries (default 1s)
  -key-file string
    	Client PEM encoded X.509 key for optional use with TLS connection to Loki
  -labelname string
    	The label name for this instance of loki-canary to use in the log selector (default "name")
  -labelvalue string
    	The unique label value for this instance of loki-canary to use in the log selector (default "loki-canary")
  -max-wait duration
    	Duration to keep querying Loki for missing websocket entries before reporting them missing (default 5m0s)
  -metric-test-interval duration
    	The interval the metric test query should be run (default 1h0m0s)
  -metric-test-range duration
    	The range value [24h] used in the metric test instant-query. Note: this value is truncated to the running time of the canary until this value is reached (default 24h0m0s)
  -out-of-order-max duration
    	Maximum amount of time to go back for out of order entries (in seconds). (default 1m0s)
  -out-of-order-min duration
    	Minimum amount of time to go back for out of order entries (in seconds). (default 30s)
  -out-of-order-percentage int
    	Percentage (0-100) of log entries that should be sent out of order.
  -pass string
    	Loki password. This credential should have both read and write permissions to Loki endpoints
  -port int
    	Port which loki-canary should expose metrics (default 3500)
  -pruneinterval duration
    	Frequency to check sent vs received logs, also the frequency which queries for missing logs will be dispatched to loki (default 1m0s)
  -push
    	Push the logs directly to given Loki address
  -query-timeout duration
    	How long to wait for a query response from Loki (default 10s)
  -size int
    	Size in bytes of each log line (default 100)
  -spot-check-initial-wait duration
    	How long should the spot check query wait before starting to check for entries (default 10s)
  -spot-check-interval duration
    	Interval that a single result will be kept from sent entries and spot-checked against Loki, e.g. 15min default one entry every 15 min will be saved and then queried again every 15min until spot-check-max is reached (default 15m0s)
  -spot-check-max duration
    	How far back to check a spot check entry before dropping it (default 4h0m0s)
  -spot-check-query-rate duration
    	Interval that the canary will query Loki for the current list of all spot check entries (default 1m0s)
  -streamname string
    	The stream name for this instance of loki-canary to use in the log selector (default "stream")
  -streamvalue string
    	The unique stream value for this instance of loki-canary to use in the log selector (default "stdout")
  -tenant-id string
    	Tenant ID to be set in X-Scope-OrgID header.
  -tls
    	Does the loki connection use TLS?
  -user string
    	Loki username.
  -version
    	Print this builds version information
  -wait duration
    	Duration to wait for log entries on websocket before querying loki for them (default 1m0s)
  -write-max-backoff duration
    	Maximum backoff time between retries  (default 5m0s)
  -write-max-retries int
    	Maximum number of retries when push a log entry  (default 10)
  -write-min-backoff duration
    	Initial backoff time before first retry  (default 500ms)
  -write-timeout duration
    	How long to wait write response from Loki (default 10s)