ArgoCD Metrics 监控：Prometheus 指标采集与可视化

0418
来自AI助手的总结
介绍了ArgoCD各组件Metrics采集与Prometheus配置方法
ArgoCD Metrics 监控：Prometheus 指标采集与可视化

一、为什么监控 ArgonCD Metrics？

ArgoCD 的 Metrics 提供了有关其内部状态和运行状况的重要信息。通过监控这些指标，可以实现以下目标：

  • 性能监控：了解ArgoCD的性能表现，确保其能够有效处理请求。

  • 故障检测：快速检测ArgoCD中的潜在问题，如连接问题、同步失败等。

  • 容量规划：评估ArgoCD的使用情况，为未来增长做好准备。

  • 合规性：确保ArgoCD符合组织的安全和合规政策。

二、配置 Metrics 指标采集

官方数据：https://argocd.devops.gold/operator-manual/metrics/

ArgoCD 为每台服务器提供不同的 Prometheus 指标集，针对不同类型的指标我们需要配置不同的采集方式：

2.1 应用程序控制器指标

从 argocd-metrics:8082/metrics 端点获取的应用程序指标。

# 新增如下内容
    prometheus.io/port: "8082"
    prometheus.io/scrape: "true"
# 具体修改
[root@master01 17]# kubectl edit svc argocd-metrics -n argocd
apiVersion: v1
kind: Service
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"v1","kind":"Service","metadata":{"annotations":{},"labels":
      {"app.kubernetes.io/component":"metrics","app.kubernetes.io/name":"argocd-metrics","app.kubernetes.io/part-of":"argocd"},"name":"argocd-metrics","namespace":"argocd"},"spec":{"ports":
      [{"name":"metrics","port":8082,"protocol":"TCP","targetPort":8082}],"selector":
      {"app.kubernetes.io/name":"argocd-application-controller"}}}
    prometheus.io/port: "8082"
    prometheus.io/scrape: "true"
  creationTimestamp: "2024-07-31T10:08:26Z"
  labels:
    app.kubernetes.io/component: metrics
    app.kubernetes.io/name: argocd-metrics
    app.kubernetes.io/part-of: argocd
  name: argocd-metrics
  namespace: argocd

2.2 API 服务指标

有关 API 服务 API 请求和响应活动的指标（请求总数、响应代码等）。 从 argocd-server-metrics:8083/metrics 端点抓取

# 新增如下内容
    prometheus.io/port: "8083" 
    prometheus.io/scrape: "true" 
# 具体修改
[root@master01 17]# kubectl edit svc argocd-server-metrics -n argocd
apiVersion: v1
kind: Service
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"v1","kind":"Service","metadata":{"annotations":{},"labels":
      {"app.kubernetes.io/component":"server","app.kubernetes.io/name":"argocd-server-metrics","app.kubernetes.io/part-of":"argocd"},"name":"argocd-server-metrics","namespace":"argocd"},"spec":{"ports":
      [{"name":"metrics","port":8083,"protocol":"TCP","targetPort":8083}],"selector":
      {"app.kubernetes.io/name":"argocd-server"}}}
    prometheus.io/port: "8083" # 新增
    prometheus.io/scrape: "true" # 新增
  creationTimestamp: "2024-07-31T10:08:27Z"
  labels:
    app.kubernetes.io/component: server
    app.kubernetes.io/name: argocd-server-metrics
    app.kubernetes.io/part-of: argocd
  name: argocd-server-metrics
  namespace: argocd

2.3 Repo 服务指标

Repo 服务的度量指标。 从 argocd-repo-server:8084/metrics 端点抓取。

# 新增如下内容
    prometheus.io/port: "8084"
    prometheus.io/scrape: "true"
# 具体修改
[root@master01 17]# kubectl edit svc argocd-repo-server -n argocd
apiVersion: v1
kind: Service
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"v1","kind":"Service","metadata":{"annotations":{},"labels":
      {"app.kubernetes.io/component":"repo-server","app.kubernetes.io/name":"argocd-repo-server","app.kubernetes.io/part-of":"argocd"},"name":"argocd-repo-server","namespace":"argocd"},"spec":{"ports":
      [{"name":"server","port":8081,"protocol":"TCP","targetPort":8081},
      {"name":"metrics","port":8084,"protocol":"TCP","targetPort":8084}],"selector":
      {"app.kubernetes.io/name":"argocd-repo-server"}}}
    prometheus.io/port: "8084" # 新增
    prometheus.io/scrape: "true" # 新增
  creationTimestamp: "2024-07-31T10:08:27Z"
  labels:
    app.kubernetes.io/component: repo-server
    app.kubernetes.io/name: argocd-repo-server
    app.kubernetes.io/part-of: argocd
  name: argocd-repo-server
  namespace: argocd

2.4 数据验证

修改prometheus静态配置文件

# 添加如下内容
    ########## Argocd 监控配置 ##########
    - job_name: 'argocd-metrics'
      static_configs:
        - targets: ['argocd-metrics.argocd.svc.cluster.local:8082']
    - job_name: 'argocd-server-metrics'
      static_configs:
        - targets: ['argocd-server-metrics.argocd.svc.cluster.local:8083']
    - job_name: 'argocd-repo-server-metrics'
      static_configs:
        - targets: ['argocd-repo-server.argocd.svc.cluster.local:8084']
# 完整配置文件
[root@master01 7]# vim prometheus-config.yaml 
apiVersion: v1
kind: ConfigMap
metadata:
  name: prometheus-config
  namespace: monitor
data:
  prometheus.yml: |
    global:
      scrape_interval:     15s
      evaluation_interval: 15s
      external_labels:
        cluster: "kubernetes"
    ############ 添加配置 Aertmanager 服务器地址 ###################
    alerting:
      alertmanagers:
      - static_configs:
        - targets: ["alertmanager:9093"]         
    ############ 数据采集job ###################
    scrape_configs:
    ########## Argocd 监控配置 ##########
    - job_name: 'argocd-metrics'
      static_configs:
        - targets: ['argocd-metrics.argocd.svc.cluster.local:8082']
    - job_name: 'argocd-server-metrics'
      static_configs:
        - targets: ['argocd-server-metrics.argocd.svc.cluster.local:8083']
    - job_name: 'argocd-repo-server-metrics'
      static_configs:
        - targets: ['argocd-repo-server.argocd.svc.cluster.local:8084']
    ########## prometheus 监控配置 ##########
    - job_name: prometheus
      static_configs:
      - targets: ['127.0.0.1:9090']
        labels:
          instance: prometheus
    ########## apisix 监控配置 ##########
    - job_name: "apisix"
      scrape_interval: 15s 
      metrics_path: "/apisix/prometheus/metrics"
      static_configs:
      - targets: [metrics.example.com]
    ########## minio 监控配置 ##########
    - job_name: minio-job
      bearer_token: <prometheus-bearer-token>
      metrics_path: /minio/v2/metrics/cluster
      scheme: http
      static_configs:
        - targets: [s3.example.com]
    ########## kube-apiserver 监控配置 ##########
    - job_name: kube-apiserver
      kubernetes_sd_configs:
      - role: endpoints
      scheme: https
      tls_config:
        ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
      bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
      relabel_configs:
      - source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name]
        action: keep
        regex: default;kubernetes
      - source_labels: [__meta_kubernetes_endpoints_name]
        action: replace
        target_label: endpoint
      - source_labels: [__meta_kubernetes_pod_name]
        action: replace
        target_label: pod
      - source_labels: [__meta_kubernetes_service_name]
        action: replace
        target_label: service
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        target_label: namespace
    ########## kube-controller-manager 监控配置 ##########
    - job_name: 'kube-controller-manager'
      # 使用 Kubernetes Pod 发现机制
      kubernetes_sd_configs:
        - role: pod
      # 强制使用 HTTPS 协议
      scheme: https
      # TLS 配置（测试环境跳过验证）
      tls_config:
        insecure_skip_verify: true
      # 使用 ServiceAccount 的 Token 认证
      bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
      relabel_configs:
        # 保留标签为 component=kube-controller-manager 的 Pod
        - source_labels: [__meta_kubernetes_pod_label_component]
          regex: kube-controller-manager
          action: keep
        # 重写目标地址为 Pod IP + 10257 端口
        - source_labels: [__meta_kubernetes_pod_ip]
          regex: (.+)
          target_label: __address__
          replacement: "${1}:10257"
        # 强制使用 HTTPS 协议（冗余但明确）
        - source_labels: []
          regex: .*
          target_label: __scheme__
          replacement: https
        # 附加元数据标签
        - source_labels: [__meta_kubernetes_endpoints_name]
          action: replace
          target_label: endpoint
        - source_labels: [__meta_kubernetes_pod_name]
          action: replace
          target_label: pod
        - source_labels: [__meta_kubernetes_service_name]
          action: replace
          target_label: service
        - source_labels: [__meta_kubernetes_namespace]
          action: replace
          target_label: namespace                
    ########## kube-scheduler 监控配置 ##########
    - job_name: 'kube-scheduler'
      kubernetes_sd_configs:
        - role: pod
      scheme: https
      tls_config:
        insecure_skip_verify: true
      bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
      relabel_configs:
        - source_labels: [__meta_kubernetes_pod_label_component]
          regex: kube-scheduler
          action: keep
        - source_labels: [__meta_kubernetes_pod_ip]
          regex: (.+)
          target_label: __address__
          replacement: "${1}:10259"
        - source_labels: []
          regex: .*
          target_label: __scheme__
          replacement: https
        - source_labels: [__meta_kubernetes_endpoints_name]
          action: replace
          target_label: endpoint
        - source_labels: [__meta_kubernetes_pod_name]
          action: replace
          target_label: pod
        - source_labels: [__meta_kubernetes_service_name]
          action: replace
          target_label: service
        - source_labels: [__meta_kubernetes_namespace]
          action: replace
          target_label: namespace
    ########## kube-state-metrics 监控配置 ##########
    - job_name: kube-state-metrics
      kubernetes_sd_configs:
      - role: endpoints
      relabel_configs:
      - source_labels: [__meta_kubernetes_service_name]
        regex: kube-state-metrics
        action: keep
      - source_labels: [__meta_kubernetes_pod_ip]
        regex: (.+)
        target_label: __address__
        replacement: ${1}:8080
      - source_labels: [__meta_kubernetes_endpoints_name]
        action: replace
        target_label: endpoint
      - source_labels: [__meta_kubernetes_pod_name]
        action: replace
        target_label: pod
      - source_labels: [__meta_kubernetes_service_name]
        action: replace
        target_label: service
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        target_label: namespace
    ########## coredns 监控配置 ##########
    - job_name: coredns
      kubernetes_sd_configs:
      - role: endpoints
      relabel_configs:
      - source_labels:
          - __meta_kubernetes_service_label_k8s_app
        regex: kube-dns
        action: keep
      - source_labels: [__meta_kubernetes_pod_ip]
        regex: (.+)
        target_label: __address__
        replacement: ${1}:9153
      - source_labels: [__meta_kubernetes_endpoints_name]
        action: replace
        target_label: endpoint
      - source_labels: [__meta_kubernetes_pod_name]
        action: replace
        target_label: pod
      - source_labels: [__meta_kubernetes_service_name]
        action: replace
        target_label: service
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        target_label: namespace
    ########## etcd 监控配置 ##########
    - job_name: etcd
      kubernetes_sd_configs:
      - role: pod
      relabel_configs:
      - source_labels:
          - __meta_kubernetes_pod_label_component
        regex: etcd
        action: keep
      - source_labels: [__meta_kubernetes_pod_ip]
        regex: (.+)
        target_label: __address__
        replacement: ${1}:2381
      - source_labels: [__meta_kubernetes_endpoints_name]
        action: replace
        target_label: endpoint
      - source_labels: [__meta_kubernetes_pod_name]
        action: replace
        target_label: pod
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        target_label: namespace
    ########## kubelet 监控配置 ##########
    - job_name: kubelet
      metrics_path: /metrics/cadvisor
      scheme: https
      tls_config:
        insecure_skip_verify: true
      bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
      kubernetes_sd_configs:
      - role: node
      relabel_configs:
      - action: labelmap
        regex: __meta_kubernetes_node_label_(.+)
      - source_labels: [__meta_kubernetes_endpoints_name]
        action: replace
        target_label: endpoint
      - source_labels: [__meta_kubernetes_pod_name]
        action: replace
        target_label: pod
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        target_label: namespace   
    ########## k8s-node 监控配置 ##########
    - job_name: k8s-nodes
      kubernetes_sd_configs:
      - role: node
      relabel_configs:
      - source_labels: [__address__]
        regex: '(.*):10250'
        replacement: '${1}:9100'
        target_label: __address__
        action: replace
      - action: labelmap
        regex: __meta_kubernetes_node_label_(.+)
      - source_labels: [__meta_kubernetes_endpoints_name]
        action: replace
        target_label: endpoint
      - source_labels: [__meta_kubernetes_pod_name]
        action: replace
        target_label: pod
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        target_label: namespace 
    ########## DNS 监控配置 ##########
    - job_name: "kubernetes-dns"
      metrics_path: /probe              # 不是metrics，是probe
      params:
        module: [dns_tcp]               # 使用DNS TCP模块
      static_configs:
        - targets:
          - kube-dns.kube-system:53             #不要省略端口号
          - 8.8.4.4:53
          - 8.8.8.8:53
          - 223.5.5.5:53
      relabel_configs:
        - source_labels: [__address__]
          target_label: __param_target
        - source_labels: [__param_target]
          target_label: instance
        - target_label: __address__
          replacement: blackbox-exporter.monitor:9115 # 服务地址，和上面的 Service 定义保持一致
    ########## ICMP 监控配置 ##########
    - job_name: icmp-status
      metrics_path: /probe
      params:
        module: [icmp]
      static_configs:
      - targets:
        - <node-ip>
        labels:
          group: icmp
      relabel_configs:
      - source_labels: [__address__]
        target_label: __param_target
      - source_labels: [__param_target]
        target_label: instance
      - target_label: __address__
        replacement: blackbox-exporter.monitor:9115
    ########## HTTP 监控配置 ##########
    - job_name: 'kubernetes-services'
      metrics_path: /probe
      params:
        module:         ## 使用HTTP_GET_2xx与HTTP_GET_3XX模块
        - "http_get_2xx"
        - "http_get_3xx"
      kubernetes_sd_configs:            ## 使用Kubernetes动态服务发现,且使用Service类型的发现
      - role: service
      relabel_configs:          ## 设置只监测Kubernetes Service中Annotation里配置了注解prometheus.io/http_probe: true的service
      - action: keep
        source_labels: [__meta_kubernetes_service_annotation_prometheus_io_http_probe]
        regex: "true"
      - action: replace
        source_labels: 
        - "__meta_kubernetes_service_name"
        - "__meta_kubernetes_namespace"
        - "__meta_kubernetes_service_annotation_prometheus_io_http_probe_port"
        - "__meta_kubernetes_service_annotation_prometheus_io_http_probe_path"
        target_label: __param_target
        regex: (.+);(.+);(.+);(.+)
        replacement: $1.$2:$3$4
      - target_label: __address__
        replacement: blackbox-exporter.monitor:9115             ## BlackBox Exporter 的 Service 地址
      - source_labels: [__param_target]
        target_label: instance
      - action: labelmap
        regex: __meta_kubernetes_service_label_(.+)
      - source_labels: [__meta_kubernetes_namespace]
        target_label: kubernetes_namespace
      - source_labels: [__meta_kubernetes_service_name]
        target_label: kubernetes_name   
    ########## TCP 监控配置 ##########
    - job_name: "service-tcp-probe"
      scrape_interval: 1m
      metrics_path: /probe
      # 使用blackbox exporter配置文件的tcp_connect的探针
      params:
        module: [tcp_connect]
      kubernetes_sd_configs:
      - role: service
      relabel_configs:
      # 保留prometheus.io/scrape: "true"和prometheus.io/tcp-probe: "true"的service
      - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape, __meta_kubernetes_service_annotation_prometheus_io_tcp_probe]
        action: keep
        regex: true;true
      # 将原标签名__meta_kubernetes_service_name改成service_name
      - source_labels: [__meta_kubernetes_service_name]
        action: replace
        regex: (.*)
        target_label: service_name
      # 将原标签名__meta_kubernetes_service_name改成service_name
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        regex: (.*)
        target_label: namespace
      # 将instance改成 `clusterIP:port` 地址
      - source_labels: [__meta_kubernetes_service_cluster_ip, __meta_kubernetes_service_annotation_prometheus_io_http_probe_port]
        action: replace
        regex: (.*);(.*)
        target_label: __param_target
        replacement: $1:$2
      - source_labels: [__param_target]
        target_label: instance
      # 将__address__的值改成 `blackbox-exporter.monitor:9115`
      - target_label: __address__
        replacement: blackbox-exporter.monitor:9115
    ########## Ingress 监控配置 ########## 
    - job_name: 'blackbox-k8s-ingresses'
      scrape_interval: 30s
      scrape_timeout: 10s
      metrics_path: /probe
      params:
        module: [http_get_2xx]  # 使用定义的http模块
      kubernetes_sd_configs:
      - role: ingress  # ingress 类型的服务发现
      relabel_configs:
      # 只有ingress的annotation中配置了 prometheus.io/http_probe=true 的才进行发现
      - source_labels: [__meta_kubernetes_ingress_annotation_prometheus_io_http_probe]
        action: keep
        regex: true
      - source_labels: [__meta_kubernetes_ingress_scheme,__address__,__meta_kubernetes_ingress_path]
        regex: (.+);(.+);(.+)
        replacement: ${1}://${2}${3}
        target_label: __param_target
      - target_label: __address__
        replacement: blackbox-exporter.monitor:9115
      - source_labels: [__param_target]
        target_label: instance
      - action: labelmap
        regex: __meta_kubernetes_ingress_label_(.+)
      - source_labels: [__meta_kubernetes_namespace]
        target_label: kubernetes_namespace
      - source_labels: [__meta_kubernetes_ingress_name]
        target_label: kubernetes_name
    ########## 外部域名 监控配置 ##########
    - job_name: "blackbox-external-website"
      scrape_interval: 30s
      scrape_timeout: 15s
      metrics_path: /probe
      params:
        module: [http_get_2xx]
      static_configs:
      - targets:
        - https://www.baidu.com # 改为公司对外服务的域名
        - https://www.jd.com
      relabel_configs:
      - source_labels: [__address__]
        target_label: __param_target
      - source_labels: [__param_target]
        target_label: instance
      - target_label: __address__
        replacement: blackbox-exporter.monitor:9115
    ########## 云上ECS 监控配置 ##########
    - job_name: 'other-ECS'
      static_configs:
        - targets: ['101.201.68.158:9100']
          labels:
            hostname: 'test-node-exporter'
    ########## 进程 监控配置 ##########
    - job_name: 'process-exporter'
      static_configs:
      - targets: ['<node-ip>:9256']
    ########## Mysql 监控配置 ##########
    - job_name: 'mysql-exporter'
      static_configs:
      - targets: ['<node-ip>:9104']
    ########## Consul 监控配置 ##########
    - job_name: consul
      honor_labels: true
      metrics_path: /metrics
      scheme: http
      consul_sd_configs:    #基于consul服务发现的配置
        - server: <node-ip>:18500    #consul的监听地址
          services: []                 #匹配consul中所有的service
      relabel_configs:             #relabel_configs下面都是重写标签相关配置
      - source_labels: ['__meta_consul_tags']    #将__meta_consul_tags标签的至赋值给product
        target_label: 'servername'
      - source_labels: ['__meta_consul_dc']   #将__meta_consul_dc的值赋值给idc
        target_label: 'idc'
      - source_labels: ['__meta_consul_service']   
        regex: "consul"  #匹配为"consul"的service
        action: drop       #执行的动作为删除 
    ############ 指定告警规则文件路径位置 ###################
    rule_files:
    - /etc/prometheus/rules/*.rules

配置文件生效


[root@master01 7]# kaf prometheus-config.yaml

# 热加载

[root@master01 7]# curl -XPOST http://prometheus.example.com/-/reload

登录http://prometheus.example.com/，通过 prometheus web UI 检查是否可以正常采集指标

image-20250422084041800

2.5 针对 Prometheus Operator 方式

使用以下 ServiceMonitor 配置清单示例。 添加 ArgoCD 安装所在的名称空间，并将

metadata.labels.release 更改为 Prometheus 选择的标签名称。

1）argocd-metrics

apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: argocd-metrics
  labels:
    release: prometheus-operator
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: argocd-metrics
  endpoints:
  - port: metrics

2）argocd-server-metrics

apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: argocd-server-metrics
  labels:
    release: prometheus-operator
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: argocd-server-metrics
  endpoints:
    - port: metrics

3）argocd-repo-server

apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: argocd-repo-server-metrics
  labels:
    release: prometheus-operator
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: argocd-repo-server
  endpoints:
    - port: metrics

三、仪表板展示

官方大盘，在 Grafana 中导入 Argo CD 的 Dashboard：14584

注意：由于创建后没有更新过，故一些数据指标采集不正常，需要手动调整！

Day17-ArgoCD-图27

大盘2：19993

数据简单明了，大盘展示较为清晰，目前仍在更新中。

Day17-ArgoCD-图28

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ArgoCD
# Prometheus# ArgoCD# GitOps# 持续交付# 监控指标
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