Promtail 基本身份验证使用 Helm Values.yaml 中的 kubernetes Secret

问题描述 投票:0回答:2

我正在使用 promtail helm 图表连接到在不同堆栈上运行的 Loki 服务器。我在 Nginx 入口后面设置了 Loki,并通过基本身份验证进行了保护。

我找不到任何相关文档,很可能这只是我对 helm 的有限理解。

我只是尝试使用基本身份验证连接到 Loki 实例,同时在 helm 值中使用 Kubernetes 密钥而不是纯文本凭证

这很完美:

  snippets:
    extraClientConfigs: |
      basic_auth:
        username: myusername
        password: mypassword

我创建了一个这样的秘密:

kubectl create secret generic loki-credentials -n monitoring --from-literal=password="mypassword" --from-literal=username="myusername"

现在我想在

values.yaml
文件中使用它。

这是我到目前为止得到的:

extraEnv:
  - name: LOKI_USERNAME
    valueFrom:
      secretKeyRef:
        name: loki-credentials
        key: username
  - name: LOKI_PASSWORD
    valueFrom:
      secretKeyRef:
        name: loki-credentials
        key: password

extraArgs:
  - -client.external-labels=stack=development
  - -config.expand-env

config:
  serverPort: 3101
  lokiAddress: myurl
  snippets:
    extraClientConfigs: |
      basic_auth:
        username: ${LOKI_USERNAME}
        password: ${LOKI_PASSWORD}

我刚刚收到 401 回复。

 Chart version: 3.1.0
 Promtail version: 2.1.0

编辑

这是我的入口 yaml:

controller:
  replicaCount: 1

  config:
    force-ssl-redirect: "true"
    use-forwarded-headers: "true"

  service:
    targetPorts:
      http: http
      https: http
    annotations:
      service.beta.kubernetes.io/aws-load-balancer-ssl-cert: "arn:aws:acm:us-west-2:123456:certificate/123456"
      service.beta.kubernetes.io/aws-load-balancer-backend-protocol: "http"
      service.beta.kubernetes.io/aws-load-balancer-ssl-ports: "https"

    enableHttp: false
    enableHttps: true
    type: LoadBalancer
    loadBalancerSourceRanges:
      - "0.0.0.0/0"

   ## Name of the ingress class to route through this controller
  ingressClass: nginx-external

...还有我的洛基

values.yaml

ingress:
  enabled: true
  annotations:
    kubernetes.io/ingress.class: "nginx-external"
    nginx.ingress.kubernetes.io/auth-type: basic
    nginx.ingress.kubernetes.io/auth-secret: loki-ingress-auth
    nginx.ingress.kubernetes.io/auth-realm: "Authentication Required"
  hosts:
    - host: loki.mydomain.com
      paths: 
        - "/"
  tls: []

config:
  auth_enabled: false
  ingester:
    chunk_idle_period: 3m
    chunk_block_size: 262144
    chunk_retain_period: 1m
    max_transfer_retries: 3
    lifecycler:
      ring:
        kvstore:
          store: inmemory
        replication_factor: 1
  
  schema_config:
    configs:
    - from: 2021-03-06
      store: boltdb-shipper
      object_store: aws
      schema: v11
      index:
        prefix: loki_index_
        period: 24h
        
  server:
    http_listen_port: 3100

  storage_config:
    aws:
      bucketnames: my-bucket-name
      region: us-west-2
      s3forcepathstyle: true

    boltdb_shipper:
      active_index_directory: /data/loki/boltdb-shipper-active
      cache_location: /data/loki/boltdb-shipper-cache
      shared_store: s3

  chunk_store_config:
    max_look_back_period: 0s
  
  table_manager:
    retention_deletes_enabled: false
    retention_period: 0s

  compactor:
    working_directory: /data/loki/boltdb-shipper-compactor
    shared_store: aws

replicas: 1

podAnnotations:
  iam.amazonaws.com/role: "arn:aws:iam::123456:role/my-loki-role"

resources:
  limits:
    cpu: 500m
    memory: 2G
  requests:
    cpu: 250m
    memory: 1G

# The values to set in the PodDisruptionBudget spec
# If not set then a PodDisruptionBudget will not be created
podDisruptionBudget:
  minAvailable: 1

来自 Loki 所在的 nginx pod 的日志:

2021/03/09 04:23:44 [error] 37#37: *925 user "myusername": password mismatch, client: xxx.xx.xxx.xxx, server: loki.mydomain.com, request: "POST /loki/api/v1/push HTTP/1.1", host: "loki.mydomain.com"
2021/03/09 04:23:44 [error] 37#37: *921 user "myusername": password mismatch, client: xxx.xx.xxx.xxx, server: loki.mydomain.com, request: "POST /loki/api/v1/push HTTP/1.1", host: "loki.mydomain.com"
xx.xxx.xxx.xx - myusername [09/Mar/2021:04:23:44 +0000] "POST /loki/api/v1/push HTTP/1.1" 401 172 "-" "promtail/2.1.0" 326 0.000 [monitoring-loki-3100] [] - - - - 63294b16fe010a8c9ec1d4684f0472f5
xxx.xx.xxx.xxx: - myusername [09/Mar/2021:04:23:44 +0000] "POST /loki/api/v1/push HTTP/1.1" 204 0 "-" "promtail/2.1.0" 2744 0.003 [monitoring-loki-3100] [] xxx.xx.xxx.xxx:3100 0 0.004 204 029e0a9d1ee6242cad8b9a6d2ee50940
2021/03/09 04:23:44 [error] 37#37: *925 user "myusername": password mismatch, client: xx.xxx.xxx.xx, server: loki.mydomain.com, request: "POST /loki/api/v1/push HTTP/1.1", host: "loki.mydomain.com"
xxx.xx.xxx.xxx - myusername [09/Mar/2021:04:23:44 +0000] "POST /loki/api/v1/push HTTP/1.1" 401 172 "-" "promtail/2.1.0" 325 0.000 [monitoring-loki-3100] [] - - - - b75a2cfcf6c62b81953dd4fb26f1a844
xxx.xx.xxx.xxx - myusername [09/Mar/2021:04:23:44 +0000] "POST /loki/api/v1/push HTTP/1.1" 204 0 "-" "promtail/2.1.0" 1513 0.014 [monitoring-loki-3100] [] xxx.xx.xxx.xxx:3100 0 0.016 204 0049965a49877cb5d336ac6ec869feb4
2021/03/09 04:23:45 [error] 36#36: *941 user "myusername": password mismatch, client: xxx.xx.xxx.xxx, server: loki.mydomain.com, request: "POST /loki/api/v1/push HTTP/1.1", host: "loki.mydomain.com"
xxx.xx.xxx.xxx - myusername [09/Mar/2021:04:23:45 +0000] "POST /loki/api/v1/push HTTP/1.1" 401 172 "-" "promtail/2.1.0" 326 0.000 [monitoring-loki-3100] [] - - - - e5954bd055db5b3e9bd3227f57651847
kubernetes logging prometheus kubernetes-helm
2个回答
1
投票

为刚接触 Loki 的人提供一些背景知识,如 文档中所述: Loki 不附带任何包含的身份验证层。运营商应该在您的服务之前运行身份验证反向代理,例如使用基本身份验证的 NGINX 或 OAuth2 代理。

这基本上意味着你必须在客户端和 Loki 之间放置一些东西来强制执行,例如基本身份验证。在这种情况下,有一个 Ingress (Nginx) 充当具有基本身份验证的反向代理。

要解决使用 Nginx 进行身份验证的问题,需要检查许多事项:

  • Nginx Ingress Pod 的日志,检查身份验证错误。
  • 添加的 Kubernetes Secret 包含您所期望的内容。
  • 您已配置所需的 Ingress 对象
    annotations

当谈到使用 Nginx 作为 Ingress 并添加基本身份验证时,官方文档中的这个资源非常有帮助。

一般来说,在创建 Kubernetes 机密时,尤其是使用

kubectl

 从命令行创建时,如果密码包含特殊字符,则必须用单引号引起来。这样您的 shell 就不会解释特殊字符。更多信息
这里


0
投票
我遇到了同样的问题并用原来的方法解决了

    单独的秘密(通过密封秘密)
  • 环境变量。
版本

图表版本应用程序版本6.15.12.8.4
我的价值观.yaml

config: clients: - url: http://loki-gateway/loki/api/v1/push basic_auth: password: "${LOKI_PASSWORD}" username: "${LOKI_USERNAME}" extraArgs: - -config.expand-env=true extraEnv: - name: LOKI_USERNAME valueFrom: secretKeyRef: name: promtail-credentials key: username - name: LOKI_PASSWORD valueFrom: secretKeyRef: name: promtail-credentials key: password extraObjects: - apiVersion: bitnami.com/v1alpha1 kind: SealedSecret metadata: annotations: sealedsecrets.bitnami.com/cluster-wide: "true" creationTimestamp: null name: promtail-credentials namespace: loki spec: encryptedData: username: <SEALED-VALUE-FOR-USERNAME-HERE> password: <SEALED-VALUE-FOR-PASSWORD-HERE> template: data: null metadata: annotations: sealedsecrets.bitnami.com/cluster-wide: "true" creationTimestamp: null name: promtail-credentials namespace: loki'
    
© www.soinside.com 2019 - 2024. All rights reserved.