Prometheus K8s extraConfigmapMounts未能将多个文件加载到同一个目录

Question

Prometheus问题:我在Helm上使用prometheus，我想在同一个位置/etc/config/alrtingRules上挂载几个.yml文件--在git中，这些文件作为不同的文件保持分离是至关重要的。我尝试过将它们安装到自己的configMap上，并使用"extraConfigmapMounts“将它们全部放置在位置上，但我面临着困难。

我尝试过两种配置：

第一：

  extraConfigmapMounts:
    - name: recording-rules
      mountPath: /etc/config/recording-rules.yml
      subPath: recording-rules.yml
      configMap: recording-rules
      readOnly: true
    - name: dummytest-alerting
      mountPath: /etc/config/alertingRules/dummytest.yml
      subPath: dummytest.yml
      configMap: dummytest-alerting
      readOnly: true
    - name: app1-alerting
      mountPath: /etc/config/alertingRules/app1.yml
      subPath: app1.yml
      configMap: app1-alerting
      readOnly: true
    - name: app2-alerting
      mountPath: /etc/config/alertingRules/app2.yml
      subPath: app2.yml
      configMap: app2-alerting
      readOnly: true

此舵机成功，但随后prometheus-server无法加载此错误：

ts=2022-06-13T08:25:35.322Z caller=manager.go:968 level=error component=“规则管理器”加载组“msg=”加载组失败“err=”/etc/config/msg=/dumytest.yml: read /etc/config/alertingRules/dumytest.yml:是一个目录

第二：

  extraConfigmapMounts:
    - name: recording-rules
      mountPath: /etc/config/
      subPath: recording-rules.yml
      configMap: recording-rules
      readOnly: true
    - name: dummytest-alerting
      mountPath: /etc/config/alertingRules/
      subPath: dummytest.yml
      configMap: dummytest-alerting
      readOnly: true
    - name: app1-alerting
      mountPath: /etc/config/alertingRules/
      subPath: app1.yml
      configMap: app1-alerting
      readOnly: true
    - name: app2-alerting
      mountPath: /etc/config/alertingRules/
      subPath: app2.yml
      configMap: app2-alerting
      readOnly: true

对于此配置，Helm无法提供此错误：

错误:升级失败:创建修补程序失败：[mapmountPath:/etc/config名称:server-recording-rules readOnly:true rues.yml mapmountPath:/etc/config名称:config-音量mapmountPath:/ subPath: mapmountPath:/etc/config/警报器rules名称:server-app2-app-2-alerting:true子表:app2.yml mapmountPath:/etc/config/server:server-app1-警报注册:/subPath:1.ymlmapmountules:/etc/config/警报器rules create :server-测试-alerting readOnly:true subPath:dummytest.yml]与$setElementOrder列表不匹配：[mapmountPath:/etc/config /$setElementOrder/$setElementOrder:/etc/config/$setElementOrder/$setElementOrder/

对于如何将多个.yml文件安装到prometheus服务器的/etc/config中，有什么建议吗？

Answer 1

因此，我找到的解决方案是:创建一个名为“警报-规则”的空configMap。每个微服务都有自己的yaml文件，只有“数据”字段。例如：

data:
  app1.yaml: |
    groups:
    ...
    ...
    ...
    ...
    ...

我使用"kubectl修补程序“命令将各种警报yamls装入警报规则，例如：

• kubectl修补程序configmap -n prometheus警报规则-补丁文件path/to/app1.yaml

在prometheus值中，我添加如下：

server:
  extraConfigmapMounts:
    - name: recording-rules
      mountPath: /etc/config/recordingRules
      configMap: recording-rules
      readOnly: true
    - name: alerting-rules
      mountPath: /etc/config/alertingRules
      configMap: alerting-rules
      readOnly: true

再往下说，在我下面加一句：

serverFiles:
  prometheus.yml:
    rule_files:
      - /etc/config/recordingRules/recording-rules.yaml
      - /etc/config/alertingRules/dummytest.yaml
      - /etc/config/alertingRules/app1.yaml
      - /etc/config/alertingRules/app2.yaml

这将所有警报加载到prometheus中，从而允许我们在每个微服务yaml中管理警报。