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使用 Prometheus-Operator 监控 Calico

 ·  ☕ 9 分钟  ·  ✍️ 米开朗基杨 · 👀... 阅读

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Calico 中最核心的组件就是 Felix,它负责设置路由表和 ACL 规则等,以便为该主机上的 endpoints 资源正常运行提供所需的网络连接。同时它还负责提供有关网络健康状况的数据(例如,报告配置其主机时发生的错误和问题),这些数据会被写入 etcd,以使其对网络中的其他组件和操作人员可见。

由此可见,对于我们的监控来说,监控 Calico 的核心便是监控 FelixFelix 就相当于 Calico 的大脑。本文将学习如何使用 Prometheus-Operator 来监控 Calico。

本文不会涉及到 CalicoPrometheus-Operator 的部署细节,如果不知道如何部署,请查阅官方文档和相关博客。

1. 配置 Calico 以启用指标

默认情况下 Felix 的指标是被禁用的,必须通过命令行管理工具 calicoctl 手动更改 Felix 配置才能开启,需要提前配置好命令行管理工具。

本文使用的 Calico 版本是 v3.15.0,其他版本类似。先下载管理工具:

$ wget https://github.com/projectcalico/calicoctl/releases/download/v3.15.0/calicoctl -O /usr/local/bin/calicoctl
$ chmod +x /usr/local/bin/calicoctl

接下来需要设置 calicoctl 配置文件(默认是 /etc/calico/calicoctl.cfg)。如果你的 Calico 后端存储使用的是 Kubernetes API,那么配置文件内容如下:

apiVersion: projectcalico.org/v3
kind: CalicoAPIConfig
metadata:
spec:
  datastoreType: "kubernetes"
  kubeconfig: "/root/.kube/config"

如果 Calico 后端存储使用的是 etcd,那么配置文件内容如下:

apiVersion: projectcalico.org/v3
kind: CalicoAPIConfig
metadata:
spec:
  datastoreType: "etcdv3"
  etcdEndpoints: https://192.168.57.51:2379,https://192.168.57.52:2379,https://192.168.57.53:2379
  etcdKeyFile: /opt/kubernetes/ssl/server-key.pem
  etcdCertFile: /opt/kubernetes/ssl/server.pem
  etcdCACertFile: /opt/kubernetes/ssl/ca.pem

你需要将其中的证书路径换成你的 etcd 证书路径。

配置好了 calicoctl 之后就可以查看或修改 Calico 的配置了,先来看一下默认的 Felix 配置:

$ calicoctl get felixConfiguration default -o yaml

apiVersion: projectcalico.org/v3
kind: FelixConfiguration
metadata:
  creationTimestamp: "2020-06-25T14:37:28Z"
  name: default
  resourceVersion: "269031"
  uid: 52146c95-ff97-40a9-9ba7-7c3b4dd3ba57
spec:
  bpfLogLevel: ""
  ipipEnabled: true
  logSeverityScreen: Info
  reportingInterval: 0s

可以看到默认的配置中没有启用指标,需要手动修改配置,命令如下:

$ calicoctl patch felixConfiguration default  --patch '{"spec":{"prometheusMetricsEnabled": true}}'

Felix 暴露指标的端口是 9091,可通过检查监听端口来验证是否开启指标:

$ ss -tulnp|grep 9091
tcp    LISTEN     0      4096   [::]:9091               [::]:*                   users:(("calico-node",pid=13761,fd=9))

$ curl -s http://localhost:9091/metrics
# HELP felix_active_local_endpoints Number of active endpoints on this host.
# TYPE felix_active_local_endpoints gauge
felix_active_local_endpoints 1
# HELP felix_active_local_policies Number of active policies on this host.
# TYPE felix_active_local_policies gauge
felix_active_local_policies 0
# HELP felix_active_local_selectors Number of active selectors on this host.
# TYPE felix_active_local_selectors gauge
felix_active_local_selectors 0
...

2. Prometheus 采集 Felix 指标

启用了 Felix 的指标后,就可以通过 Prometheus-Operator 来采集指标数据了。Prometheus-Operator 在部署时会创建 PrometheusPodMonitorServiceMonitorAlertManagerPrometheusRule 这 5 个 CRD 资源对象,然后会一直监控并维持这 5 个资源对象的状态。其中 Prometheus 这个资源对象就是对 Prometheus Server 的抽象。而 PodMonitorServiceMonitor 就是 exporter 的各种抽象,是用来提供专门提供指标数据接口的工具,Prometheus 就是通过 PodMonitorServiceMonitor 提供的指标数据接口去 pull 数据的。

ServiceMonitor 要求被监控的服务必须有对应的 Service,而 PodMonitor 则不需要,本文选择使用 PodMonitor 来采集 Felix 的指标。

PodMonitor 虽然不需要应用创建相应的 Service,但必须在 Pod 中指定指标的端口和名称,因此需要先修改 DaemonSet calico-node 的配置,指定端口和名称。先用以下命令打开 DaemonSet calico-node 的配置:

$ kubectl -n kube-system edit ds calico-node

然后在线修改,在 spec.template.sepc.containers 中加入以下内容:

        ports:
        - containerPort: 9091
          name: http-metrics
          protocol: TCP

创建 Pod 对应的 PodMonitor

# prometheus-podMonitorCalico.yaml
apiVersion: monitoring.coreos.com/v1
kind: PodMonitor
metadata:
  labels:
    k8s-app: calico-node
  name: felix
  namespace: monitoring
spec:
  podMetricsEndpoints:
  - interval: 15s
    path: /metrics
    port: http-metrics
  namespaceSelector:
    matchNames:
    - kube-system
  selector:
    matchLabels:
      k8s-app: calico-node
$ kubectl apply -f prometheus-podMonitorCalico.yaml

有几个参数需要注意:

  • PodMonitor 的 name 最终会反应到 Prometheus 的配置中,作为 job_name

  • podMetricsEndpoints.port 需要和被监控的 Pod 中的 ports.name 相同,此处为 http-metrics

  • namespaceSelector.matchNames 需要和被监控的 Pod 所在的 namespace 相同,此处为 kube-system

  • selector.matchLabels 的标签必须和被监控的 Pod 中能唯一标明身份的标签对应。

最终 Prometheus-Operator 会根据 PodMonitor 来修改 Prometheus 的配置文件,以实现对相关的 Pod 进行监控。可以打开 Prometheus 的 UI 查看监控目标:

注意 Labels 中有 pod="calico-node-xxx",表明监控的是 Pod。

3. 可视化监控指标

采集完指标之后,就可以通过 Grafana 的仪表盘来展示监控指标了。Prometheus-Operator 中部署的 Grafana 无法实时修改仪表盘的配置(必须提前将仪表盘的 json 文件挂载到 Grafana Pod 中),而且也不是最新版(7.0 以上版本),所以我选择删除 Prometheus-Operator 自带的 Grafana,自行部署 helm 仓库中的 Grafana。先进入 kube-prometheus 项目的 manifests 目录,然后将 Grafana 相关的部署清单都移到同一个目录下,再删除 Grafana:

$ cd kube-prometheus/manifests
$ mkdir grafana
$ mv grafana-* grafana/
$ kubectl delete -f grafana/

然后通过 helm 部署最新的 Grafana:

$ helm install grafana stable/grafana -n monitoring

访问 Grafana 的密码保存在 Secret 中,可以通过以下命令查看:

$ kubectl -n monitoring get secret grafana -o yaml

apiVersion: v1
data:
  admin-password: MnpoV3VaMGd1b3R3TDY5d3JwOXlIak4yZ3B2cTU1RFNKcVY0RWZsUw==
  admin-user: YWRtaW4=
  ldap-toml: ""
kind: Secret
metadata:
...

对密码进行解密:

$ echo -n "MnpoV3VaMGd1b3R3TDY5d3JwOXlIak4yZ3B2cTU1RFNKcVY0RWZsUw=="|base64 -d

解密出来的信息就是访问密码。用户名是 admin。通过用户名和密码登录 Grafana 的 UI:

添加 Prometheus-Operator 的数据源:

Calico 官方没有单独 dashboard json,而是将其放到了 ConfigMap 中,我们需要从中提取需要的 json,提取出 felix-dashboard.json 的内容,然后将其中的 datasource 值替换为 prometheus。你可以用 sed 替换,也可以用编辑器,大多数编辑器都有全局替换的功能。如果你实在不知道如何提取,可以使用我提取好的 json:

{
    "annotations":{
        "list":[
            {
                "builtIn":1,
                "datasource":"-- Grafana --",
                "enable":true,
                "hide":true,
                "iconColor":"rgba(0, 211, 255, 1)",
                "name":"Annotations & Alerts",
                "type":"dashboard"
            }]
    },
    "description":"Felix dashboard is part of calico documentation website, you will have great insight about you Calico instance by using this dashboard.",
    "editable":true,
    "gnetId":12175,
    "graphTooltip":0,
    "id":1,
    "links":[
        {
            "icon":"external link",
            "includeVars":false,
            "tags":[
            ],
            "targetBlank":true,
            "title":"Calico documentation",
            "tooltip":"Comprehensive tutorial on how to use this dashboard.",
            "type":"link",
            "url":"https://docs.projectcalico.org/master/maintenance/monitor/monitor-component-visual"
        }],
    "panels":[
        {
            "collapsed":false,
            "datasource":"prometheus",
            "gridPos":{
                "h":1,
                "w":24,
                "x":0,
                "y":0
            },
            "id":6,
            "panels":[
            ],
            "title":"Alerts and general info",
            "type":"row"
        },
        {
            "cacheTimeout":null,
            "datasource":"prometheus",
            "description":"These metrics are part of general information related to your Calico implementation.",
            "gridPos":{
                "h":4,
                "w":8,
                "x":0,
                "y":1
            },
            "id":2,
            "links":[
            ],
            "options":{
                "fieldOptions":{
                    "calcs":[
                        "lastNotNull"],
                    "defaults":{
                        "mappings":[
                        ],
                        "thresholds":{
                            "mode":"absolute",
                            "steps":[
                                {
                                    "color":"green",
                                    "value":null
                                },
                                {
                                    "color":"red",
                                    "value":80
                                }]
                        }
                    },
                    "overrides":[
                    ],
                    "values":false
                },
                "orientation":"auto",
                "showThresholdLabels":false,
                "showThresholdMarkers":true
            },
            "pluginVersion":"6.7.3",
            "targets":[
                {
                    "expr":"felix_active_local_endpoints",
                    "interval":"",
                    "legendFormat":"{{instance}}",
                    "refId":"A"
                }],
            "timeFrom":null,
            "timeShift":null,
            "title":"Active hosts on each node",
            "transparent":true,
            "type":"gauge"
        },
        {
            "cacheTimeout":null,
            "colorBackground":false,
            "colorValue":true,
            "colors":[
                "#299c46",
                "rgba(237, 129, 40, 0.89)",
                "#d44a3a"],
            "datasource":"prometheus",
            "format":"none",
            "gauge":{
                "maxValue":100,
                "minValue":0,
                "show":false,
                "thresholdLabels":false,
                "thresholdMarkers":true
            },
            "gridPos":{
                "h":4,
                "w":3,
                "x":8,
                "y":1
            },
            "id":25,
            "interval":null,
            "links":[
            ],
            "mappingType":1,
            "mappingTypes":[
                {
                    "name":"value to text",
                    "value":1
                },
                {
                    "name":"range to text",
                    "value":2
                }],
            "maxDataPoints":100,
            "nullPointMode":"connected",
            "nullText":null,
            "pluginVersion":"6.7.3",
            "postfix":"",
            "postfixFontSize":"200%",
            "prefix":"",
            "prefixFontSize":"200%",
            "rangeMaps":[
                {
                    "from":"null",
                    "text":"N/A",
                    "to":"null"
                }],
            "sparkline":{
                "fillColor":"rgba(31, 118, 189, 0.18)",
                "full":false,
                "lineColor":"rgb(31, 120, 193)",
                "show":false,
                "ymax":null,
                "ymin":null
            },
            "tableColumn":"",
            "targets":[
                {
                    "expr":"sum(rate(felix_iptables_save_errors[5m]))",
                    "interval":"",
                    "legendFormat":"{{instance}}",
                    "refId":"A"
                }],
            "thresholds":"",
            "timeFrom":null,
            "timeShift":null,
            "title":"iptables save errors",
            "transparent":true,
            "type":"singlestat",
            "valueFontSize":"200%",
            "valueMaps":[
                {
                    "op":"=",
                    "text":"N/A",
                    "value":"null"
                }],
            "valueName":"current"
        },
        {
            "cacheTimeout":null,
            "colorBackground":false,
            "colorValue":true,
            "colors":[
                "#299c46",
                "rgba(237, 129, 40, 0.89)",
                "#d44a3a"],
            "datasource":"prometheus",
            "format":"none",
            "gauge":{
                "maxValue":100,
                "minValue":0,
                "show":false,
                "thresholdLabels":false,
                "thresholdMarkers":true
            },
            "gridPos":{
                "h":4,
                "w":3,
                "x":11,
                "y":1
            },
            "id":23,
            "interval":null,
            "links":[
            ],
            "mappingType":1,
            "mappingTypes":[
                {
                    "name":"value to text",
                    "value":1
                },
                {
                    "name":"range to text",
                    "value":2
                }],
            "maxDataPoints":100,
            "nullPointMode":"connected",
            "nullText":null,
            "pluginVersion":"6.7.3",
            "postfix":"",
            "postfixFontSize":"200%",
            "prefix":"",
            "prefixFontSize":"200%",
            "rangeMaps":[
                {
                    "from":"null",
                    "text":"N/A",
                    "to":"null"
                }],
            "sparkline":{
                "fillColor":"rgba(31, 118, 189, 0.18)",
                "full":false,
                "lineColor":"rgb(31, 120, 193)",
                "show":false,
                "ymax":null,
                "ymin":null
            },
            "tableColumn":"",
            "targets":[
                {
                    "expr":"sum(rate(felix_ipset_errors[5m]))",
                    "interval":"",
                    "legendFormat":"",
                    "refId":"A"
                }],
            "thresholds":"",
            "timeFrom":null,
            "timeShift":null,
            "title":"ipset errors",
            "transparent":true,
            "type":"singlestat",
            "valueFontSize":"200%",
            "valueMaps":[
                {
                    "op":"=",
                    "text":"N/A",
                    "value":"null"
                }],
            "valueName":"current"
        },
        {
            "cacheTimeout":null,
            "colorBackground":false,
            "colorValue":true,
            "colors":[
                "#299c46",
                "rgba(237, 129, 40, 0.89)",
                "#d44a3a"],
            "datasource":"prometheus",
            "format":"none",
            "gauge":{
                "maxValue":100,
                "minValue":0,
                "show":false,
                "thresholdLabels":false,
                "thresholdMarkers":true
            },
            "gridPos":{
                "h":4,
                "w":3,
                "x":14,
                "y":1
            },
            "id":18,
            "interval":null,
            "links":[
            ],
            "mappingType":1,
            "mappingTypes":[
                {
                    "name":"value to text",
                    "value":1
                },
                {
                    "name":"range to text",
                    "value":2
                }],
            "maxDataPoints":100,
            "nullPointMode":"connected",
            "nullText":null,
            "pluginVersion":"6.7.3",
            "postfix":"",
            "postfixFontSize":"200%",
            "prefix":"",
            "prefixFontSize":"200%",
            "rangeMaps":[
                {
                    "from":"null",
                    "text":"N/A",
                    "to":"null"
                }],
            "sparkline":{
                "fillColor":"rgba(31, 118, 189, 0.18)",
                "full":false,
                "lineColor":"rgb(31, 120, 193)",
                "show":false,
                "ymax":null,
                "ymin":null
            },
            "tableColumn":"",
            "targets":[
                {
                    "expr":"max(felix_cluster_num_hosts)",
                    "interval":"",
                    "legendFormat":"Calico node",
                    "refId":"A"
                }],
            "thresholds":"",
            "timeFrom":null,
            "timeShift":null,
            "title":"Active calico nodes",
            "transparent":true,
            "type":"singlestat",
            "valueFontSize":"200%",
            "valueMaps":[
                {
                    "op":"=",
                    "text":"N/A",
                    "value":"null"
                }],
            "valueName":"current"
        },
        {
            "aliasColors":{
            },
            "bars":false,
            "dashLength":10,
            "dashes":false,
            "datasource":"prometheus",
            "description":"This graph shows you all the errors that Calico encounters, it is important to note occasional errors are acceptable. However, rise in the number of error or constant error counters means Calico is not working properly.",
            "fill":1,
            "fillGradient":0,
            "gridPos":{
                "h":4,
                "w":7,
                "x":17,
                "y":1
            },
            "hiddenSeries":false,
            "id":28,
            "legend":{
                "avg":false,
                "current":false,
                "hideEmpty":false,
                "max":false,
                "min":false,
                "show":false,
                "total":false,
                "values":false
            },
            "lines":true,
            "linewidth":1,
            "links":[
            ],
            "nullPointMode":"null as zero",
            "options":{
                "dataLinks":[
                ]
            },
            "percentage":false,
            "pluginVersion":"6.7.2",
            "pointradius":2,
            "points":false,
            "renderer":"flot",
            "seriesOverrides":[
            ],
            "spaceLength":10,
            "stack":false,
            "steppedLine":false,
            "targets":[
                {
                    "expr":"rate(felix_ipset_errors[5m])",
                    "interval":"",
                    "legendFormat":"{{instance}} ipset errors",
                    "refId":"A"
                },
                {
                    "expr":"rate(felix_iptables_restore_errors[5m])",
                    "interval":"",
                    "intervalFactor":1,
                    "legendFormat":"{{instance}} iptables restore errors",
                    "refId":"B"
                },
                {
                    "expr":"rate(felix_iptables_save_errors[5m])",
                    "interval":"",
                    "legendFormat":"{{instance}} iptables save errors",
                    "refId":"C"
                },
                {
                    "expr":"rate(felix_log_errors[5m])",
                    "interval":"",
                    "legendFormat":"{{instance}} log errors",
                    "refId":"D"
                }],
            "thresholds":[
            ],
            "timeFrom":null,
            "timeRegions":[
            ],
            "timeShift":null,
            "title":"Errors plot",
            "tooltip":{
                "shared":true,
                "sort":1,
                "value_type":"individual"
            },
            "transparent":true,
            "type":"graph",
            "xaxis":{
                "buckets":null,
                "mode":"time",
                "name":null,
                "show":true,
                "values":[
                ]
            },
            "yaxes":[
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                },
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                }],
            "yaxis":{
                "align":false,
                "alignLevel":null
            }
        },
        {
            "datasource":"prometheus",
            "description":"More policies on Felix means more effort required by Calico to manage packets. ",
            "gridPos":{
                "h":4,
                "w":8,
                "x":0,
                "y":5
            },
            "id":20,
            "options":{
                "fieldOptions":{
                    "calcs":[
                        "mean"],
                    "defaults":{
                        "mappings":[
                        ],
                        "thresholds":{
                            "mode":"absolute",
                            "steps":[
                                {
                                    "color":"green",
                                    "value":null
                                },
                                {
                                    "color":"red",
                                    "value":80
                                }]
                        }
                    },
                    "overrides":[
                    ],
                    "values":false
                },
                "orientation":"auto",
                "showThresholdLabels":false,
                "showThresholdMarkers":true
            },
            "pluginVersion":"6.7.3",
            "targets":[
                {
                    "expr":"felix_cluster_num_policies",
                    "interval":"",
                    "legendFormat":"{{instance}}",
                    "refId":"A"
                }],
            "timeFrom":null,
            "timeShift":null,
            "title":"Felix cluster policies",
            "transparent":true,
            "type":"gauge"
        },
        {
            "cacheTimeout":null,
            "colorBackground":false,
            "colorValue":true,
            "colors":[
                "#299c46",
                "rgba(237, 129, 40, 0.89)",
                "#d44a3a"],
            "datasource":"prometheus",
            "format":"none",
            "gauge":{
                "maxValue":100,
                "minValue":0,
                "show":false,
                "thresholdLabels":false,
                "thresholdMarkers":true
            },
            "gridPos":{
                "h":4,
                "w":3,
                "x":8,
                "y":5
            },
            "id":29,
            "interval":null,
            "links":[
            ],
            "mappingType":1,
            "mappingTypes":[
                {
                    "name":"value to text",
                    "value":1
                },
                {
                    "name":"range to text",
                    "value":2
                }],
            "maxDataPoints":100,
            "nullPointMode":"connected",
            "nullText":null,
            "pluginVersion":"6.7.3",
            "postfix":"",
            "postfixFontSize":"200%",
            "prefix":"",
            "prefixFontSize":"200%",
            "rangeMaps":[
                {
                    "from":"null",
                    "text":"N/A",
                    "to":"null"
                }],
            "sparkline":{
                "fillColor":"rgba(31, 118, 189, 0.18)",
                "full":false,
                "lineColor":"rgb(31, 120, 193)",
                "show":false,
                "ymax":null,
                "ymin":null
            },
            "tableColumn":"",
            "targets":[
                {
                    "expr":"sum(rate(felix_iptables_restore_errors[5m]))",
                    "interval":"",
                    "legendFormat":"",
                    "refId":"A"
                }],
            "thresholds":"",
            "timeFrom":null,
            "timeShift":null,
            "title":"iptables restore errors",
            "transparent":true,
            "type":"singlestat",
            "valueFontSize":"200%",
            "valueMaps":[
                {
                    "op":"=",
                    "text":"N/A",
                    "value":"null"
                }],
            "valueName":"current"
        },
        {
            "cacheTimeout":null,
            "colorBackground":false,
            "colorValue":true,
            "colors":[
                "#299c46",
                "rgba(237, 129, 40, 0.89)",
                "#d44a3a"],
            "datasource":"prometheus",
            "format":"none",
            "gauge":{
                "maxValue":100,
                "minValue":0,
                "show":false,
                "thresholdLabels":false,
                "thresholdMarkers":true
            },
            "gridPos":{
                "h":4,
                "w":3,
                "x":11,
                "y":5
            },
            "id":26,
            "interval":null,
            "links":[
            ],
            "mappingType":1,
            "mappingTypes":[
                {
                    "name":"value to text",
                    "value":1
                },
                {
                    "name":"range to text",
                    "value":2
                }],
            "maxDataPoints":100,
            "nullPointMode":"connected",
            "nullText":null,
            "pluginVersion":"6.7.3",
            "postfix":"",
            "postfixFontSize":"200%",
            "prefix":"",
            "prefixFontSize":"200%",
            "rangeMaps":[
                {
                    "from":"null",
                    "text":"N/A",
                    "to":"null"
                }],
            "sparkline":{
                "fillColor":"rgba(31, 118, 189, 0.18)",
                "full":false,
                "lineColor":"rgb(31, 120, 193)",
                "show":false,
                "ymax":null,
                "ymin":null
            },
            "tableColumn":"",
            "targets":[
                {
                    "expr":"sum(rate(felix_log_errors[5m]))",
                    "interval":"",
                    "legendFormat":"{{instance}}",
                    "refId":"A"
                }],
            "thresholds":"",
            "timeFrom":null,
            "timeShift":null,
            "title":"Felix log errors",
            "transparent":true,
            "type":"singlestat",
            "valueFontSize":"200%",
            "valueMaps":[
                {
                    "op":"=",
                    "text":"N/A",
                    "value":"null"
                }],
            "valueName":"current"
        },
        {
            "cacheTimeout":null,
            "colorBackground":false,
            "colorValue":true,
            "colors":[
                "#299c46",
                "rgba(237, 129, 40, 0.89)",
                "#d44a3a"],
            "datasource":"prometheus",
            "format":"none",
            "gauge":{
                "maxValue":100,
                "minValue":0,
                "show":false,
                "thresholdLabels":false,
                "thresholdMarkers":true
            },
            "gridPos":{
                "h":4,
                "w":3,
                "x":14,
                "y":5
            },
            "id":24,
            "interval":null,
            "links":[
            ],
            "mappingType":1,
            "mappingTypes":[
                {
                    "name":"value to text",
                    "value":1
                },
                {
                    "name":"range to text",
                    "value":2
                }],
            "maxDataPoints":100,
            "nullPointMode":"connected",
            "nullText":null,
            "pluginVersion":"6.7.3",
            "postfix":"",
            "postfixFontSize":"200%",
            "prefix":"",
            "prefixFontSize":"200%",
            "rangeMaps":[
                {
                    "from":"null",
                    "text":"N/A",
                    "to":"null"
                }],
            "sparkline":{
                "fillColor":"rgba(31, 118, 189, 0.18)",
                "full":false,
                "lineColor":"rgb(31, 120, 193)",
                "show":false,
                "ymax":null,
                "ymin":null
            },
            "tableColumn":"",
            "targets":[
                {
                    "expr":"sum(rate(felix_resyncs_started[5m])) ",
                    "interval":"",
                    "legendFormat":"",
                    "refId":"A"
                }],
            "thresholds":"",
            "timeFrom":null,
            "timeShift":null,
            "title":"Felix resync started",
            "transparent":true,
            "type":"singlestat",
            "valueFontSize":"200%",
            "valueMaps":[
                {
                    "op":"=",
                    "text":"N/A",
                    "value":"null"
                }],
            "valueName":"avg"
        },
        {
            "aliasColors":{
            },
            "bars":false,
            "dashLength":10,
            "dashes":false,
            "datasource":"prometheus",
            "fill":1,
            "fillGradient":0,
            "gridPos":{
                "h":4,
                "w":7,
                "x":17,
                "y":5
            },
            "hiddenSeries":false,
            "id":31,
            "legend":{
                "avg":false,
                "current":false,
                "max":false,
                "min":false,
                "show":false,
                "total":false,
                "values":false
            },
            "lines":true,
            "linewidth":1,
            "nullPointMode":"null",
            "options":{
                "dataLinks":[
                ]
            },
            "percentage":false,
            "pointradius":2,
            "points":false,
            "renderer":"flot",
            "seriesOverrides":[
            ],
            "spaceLength":10,
            "stack":false,
            "steppedLine":false,
            "targets":[
                {
                    "expr":"felix_logs_dropped",
                    "interval":"",
                    "legendFormat":"{{instance}}",
                    "refId":"A"
                }],
            "thresholds":[
            ],
            "timeFrom":null,
            "timeRegions":[
            ],
            "timeShift":null,
            "title":"Felix dropped logs",
            "tooltip":{
                "shared":true,
                "sort":0,
                "value_type":"individual"
            },
            "transparent":true,
            "type":"graph",
            "xaxis":{
                "buckets":null,
                "mode":"time",
                "name":null,
                "show":true,
                "values":[
                ]
            },
            "yaxes":[
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                },
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                }],
            "yaxis":{
                "align":false,
                "alignLevel":null
            }
        },
        {
            "collapsed":false,
            "datasource":"prometheus",
            "gridPos":{
                "h":1,
                "w":24,
                "x":0,
                "y":9
            },
            "id":14,
            "panels":[
            ],
            "title":"Dataplane",
            "type":"row"
        },
        {
            "aliasColors":{
            },
            "bars":false,
            "dashLength":10,
            "dashes":false,
            "datasource":"prometheus",
            "description":"Dataplane apply time can indicate how busy your Kubernetes instance is. This can slow down Calico performance",
            "fill":2,
            "fillGradient":4,
            "gridPos":{
                "h":7,
                "w":8,
                "x":0,
                "y":10
            },
            "hiddenSeries":false,
            "id":16,
            "legend":{
                "avg":false,
                "current":false,
                "max":false,
                "min":false,
                "show":true,
                "total":false,
                "values":false
            },
            "lines":true,
            "linewidth":2,
            "nullPointMode":"null",
            "options":{
                "dataLinks":[
                ]
            },
            "percentage":false,
            "pointradius":2,
            "points":false,
            "renderer":"flot",
            "seriesOverrides":[
            ],
            "spaceLength":10,
            "stack":false,
            "steppedLine":false,
            "targets":[
                {
                    "expr":"felix_int_dataplane_apply_time_seconds{quantile=\"0.5\"}",
                    "format":"time_series",
                    "instant":false,
                    "interval":"",
                    "intervalFactor":1,
                    "legendFormat":"{{instance}}",
                    "refId":"A"
                }],
            "thresholds":[
            ],
            "timeFrom":null,
            "timeRegions":[
            ],
            "timeShift":null,
            "title":"Dataplane apply time quantile 0.5",
            "tooltip":{
                "shared":true,
                "sort":0,
                "value_type":"individual"
            },
            "transparent":true,
            "type":"graph",
            "xaxis":{
                "buckets":null,
                "mode":"time",
                "name":null,
                "show":true,
                "values":[
                ]
            },
            "yaxes":[
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                },
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                }],
            "yaxis":{
                "align":false,
                "alignLevel":null
            }
        },
        {
            "aliasColors":{
            },
            "bars":false,
            "dashLength":10,
            "dashes":false,
            "datasource":"prometheus",
            "fill":2,
            "fillGradient":4,
            "gridPos":{
                "h":7,
                "w":8,
                "x":8,
                "y":10
            },
            "hiddenSeries":false,
            "id":15,
            "legend":{
                "avg":false,
                "current":false,
                "max":false,
                "min":false,
                "show":true,
                "total":false,
                "values":false
            },
            "lines":true,
            "linewidth":2,
            "nullPointMode":"null",
            "options":{
                "dataLinks":[
                ]
            },
            "percentage":false,
            "pointradius":2,
            "points":false,
            "renderer":"flot",
            "seriesOverrides":[
            ],
            "spaceLength":10,
            "stack":false,
            "steppedLine":false,
            "targets":[
                {
                    "expr":"felix_int_dataplane_apply_time_seconds{quantile=\"0.9\"}",
                    "interval":"",
                    "legendFormat":"{{instance}}",
                    "refId":"A"
                }],
            "thresholds":[
            ],
            "timeFrom":null,
            "timeRegions":[
            ],
            "timeShift":null,
            "title":"Dataplane apply time quantile 0.9",
            "tooltip":{
                "shared":true,
                "sort":0,
                "value_type":"individual"
            },
            "transparent":true,
            "type":"graph",
            "xaxis":{
                "buckets":null,
                "mode":"time",
                "name":null,
                "show":true,
                "values":[
                ]
            },
            "yaxes":[
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                },
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                }],
            "yaxis":{
                "align":false,
                "alignLevel":null
            }
        },
        {
            "aliasColors":{
            },
            "bars":false,
            "dashLength":10,
            "dashes":false,
            "datasource":"prometheus",
            "fill":2,
            "fillGradient":4,
            "gridPos":{
                "h":7,
                "w":8,
                "x":16,
                "y":10
            },
            "hiddenSeries":false,
            "id":12,
            "legend":{
                "avg":false,
                "current":false,
                "max":false,
                "min":false,
                "show":true,
                "total":false,
                "values":false
            },
            "lines":true,
            "linewidth":2,
            "nullPointMode":"null",
            "options":{
                "dataLinks":[
                ]
            },
            "percentage":false,
            "pointradius":2,
            "points":false,
            "renderer":"flot",
            "seriesOverrides":[
            ],
            "spaceLength":10,
            "stack":false,
            "steppedLine":false,
            "targets":[
                {
                    "expr":"felix_int_dataplane_apply_time_seconds{quantile=\"0.99\"}",
                    "interval":"",
                    "legendFormat":"{{instance}}",
                    "refId":"A"
                }],
            "thresholds":[
            ],
            "timeFrom":null,
            "timeRegions":[
            ],
            "timeShift":null,
            "title":"Dataplane apply time quantile 0.99",
            "tooltip":{
                "shared":true,
                "sort":0,
                "value_type":"individual"
            },
            "transparent":true,
            "type":"graph",
            "xaxis":{
                "buckets":null,
                "mode":"time",
                "name":null,
                "show":true,
                "values":[
                ]
            },
            "yaxes":[
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                },
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                }],
            "yaxis":{
                "align":false,
                "alignLevel":null
            }
        },
        {
            "collapsed":false,
            "datasource":null,
            "gridPos":{
                "h":1,
                "w":24,
                "x":0,
                "y":17
            },
            "id":35,
            "panels":[
            ],
            "title":"Route table",
            "type":"row"
        },
        {
            "aliasColors":{
            },
            "bars":false,
            "dashLength":10,
            "dashes":false,
            "datasource":"prometheus",
            "fill":1,
            "fillGradient":0,
            "gridPos":{
                "h":7,
                "w":8,
                "x":0,
                "y":18
            },
            "hiddenSeries":false,
            "id":33,
            "legend":{
                "avg":false,
                "current":false,
                "max":false,
                "min":false,
                "show":false,
                "total":false,
                "values":false
            },
            "lines":true,
            "linewidth":1,
            "nullPointMode":"null",
            "options":{
                "dataLinks":[
                ]
            },
            "percentage":false,
            "pointradius":2,
            "points":false,
            "renderer":"flot",
            "seriesOverrides":[
            ],
            "spaceLength":10,
            "stack":false,
            "steppedLine":false,
            "targets":[
                {
                    "expr":"felix_route_table_list_seconds{quantile=\"0.5\"}",
                    "interval":"",
                    "legendFormat":"{{instance}}",
                    "refId":"A"
                }],
            "thresholds":[
            ],
            "timeFrom":null,
            "timeRegions":[
            ],
            "timeShift":null,
            "title":"Felix route table list seconds quantile 0.5",
            "tooltip":{
                "shared":true,
                "sort":0,
                "value_type":"individual"
            },
            "transparent":true,
            "type":"graph",
            "xaxis":{
                "buckets":null,
                "mode":"time",
                "name":null,
                "show":true,
                "values":[
                ]
            },
            "yaxes":[
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                },
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                }],
            "yaxis":{
                "align":false,
                "alignLevel":null
            }
        },
        {
            "aliasColors":{
            },
            "bars":false,
            "dashLength":10,
            "dashes":false,
            "datasource":"prometheus",
            "fill":1,
            "fillGradient":0,
            "gridPos":{
                "h":7,
                "w":8,
                "x":8,
                "y":18
            },
            "hiddenSeries":false,
            "id":36,
            "legend":{
                "avg":false,
                "current":false,
                "max":false,
                "min":false,
                "show":false,
                "total":false,
                "values":false
            },
            "lines":true,
            "linewidth":1,
            "nullPointMode":"null",
            "options":{
                "dataLinks":[
                ]
            },
            "percentage":false,
            "pointradius":2,
            "points":false,
            "renderer":"flot",
            "seriesOverrides":[
            ],
            "spaceLength":10,
            "stack":false,
            "steppedLine":false,
            "targets":[
                {
                    "expr":"felix_route_table_list_seconds{quantile=\"0.9\"}",
                    "interval":"",
                    "legendFormat":"{{instance}}",
                    "refId":"A"
                }],
            "thresholds":[
            ],
            "timeFrom":null,
            "timeRegions":[
            ],
            "timeShift":null,
            "title":"Felix route table list seconds quantile 0.9",
            "tooltip":{
                "shared":true,
                "sort":0,
                "value_type":"individual"
            },
            "transparent":true,
            "type":"graph",
            "xaxis":{
                "buckets":null,
                "mode":"time",
                "name":null,
                "show":true,
                "values":[
                ]
            },
            "yaxes":[
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                },
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                }],
            "yaxis":{
                "align":false,
                "alignLevel":null
            }
        },
        {
            "aliasColors":{
            },
            "bars":false,
            "dashLength":10,
            "dashes":false,
            "datasource":"prometheus",
            "fill":1,
            "fillGradient":0,
            "gridPos":{
                "h":7,
                "w":8,
                "x":16,
                "y":18
            },
            "hiddenSeries":false,
            "id":37,
            "legend":{
                "avg":false,
                "current":false,
                "max":false,
                "min":false,
                "show":false,
                "total":false,
                "values":false
            },
            "lines":true,
            "linewidth":1,
            "nullPointMode":"null",
            "options":{
                "dataLinks":[
                ]
            },
            "percentage":false,
            "pointradius":2,
            "points":false,
            "renderer":"flot",
            "seriesOverrides":[
            ],
            "spaceLength":10,
            "stack":false,
            "steppedLine":false,
            "targets":[
                {
                    "expr":"felix_route_table_list_seconds{quantile=\"0.99\"}",
                    "interval":"",
                    "legendFormat":"{{instance}}",
                    "refId":"A"
                }],
            "thresholds":[
            ],
            "timeFrom":null,
            "timeRegions":[
            ],
            "timeShift":null,
            "title":"Felix route table list seconds quantile 0.99",
            "tooltip":{
                "shared":true,
                "sort":0,
                "value_type":"individual"
            },
            "transparent":true,
            "type":"graph",
            "xaxis":{
                "buckets":null,
                "mode":"time",
                "name":null,
                "show":true,
                "values":[
                ]
            },
            "yaxes":[
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                },
                {
                    "format":"short",
                    "label":null,
                    "logBase":1,
                    "max":null,
                    "min":null,
                    "show":true
                }],
            "yaxis":{
                "align":false,
                "alignLevel":null
            }
        }],
    "refresh":false,
    "schemaVersion":22,
    "style":"dark",
    "tags":[
        "calico",
        "felix",
        "kubernetes",
        "k8s",
        "calico-node",
        "cloud",
        "cluster monitoring",
        "policy monitoring"],
    "templating":{
        "list":[
        ]
    },
    "time":{
        "from":"now-6h",
        "to":"now"
    },
    "timepicker":{
        "refresh_intervals":[
            "5s",
            "10s",
            "30s",
            "1m",
            "5m",
            "15m",
            "30m",
            "1h",
            "2h",
            "1d"]
    },
    "timezone":"",
    "title":"Felix Dashboard (Calico)",
    "uid":"calico-felix-dashboard",
    "variables":{
        "list":[
        ]
    },
    "version":1
}

修改完了之后,将 json 内容导入到 Grafana:

最后得到的 Felix 仪表盘如下图所示:

如果你对我截图中 Grafana 的主题配色很感兴趣,可以参考这篇文章:Grafana 自定义主题

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米开朗基杨
作者: 米开朗基杨 ❉
云原生搬砖师


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