prometheus 通过blackbox监控ip

墨蓝 2023-02-23 08:46 3阅读 0赞

tcp方式：

- job_name: 'k8s-test'
            static_configs:
              - targets: ['1.1.1.1:1001']
                labels:
                  test_label: 'test'
                  ip: 1.1.1.1
            metrics_path: /probe
            params:
              module: [tcp_connect]
            relabel_configs:
            - action: labelmap
              regex: __meta_kubernetes_pod_label_(.+)
            - source_labels: [__address__]
              target_label: __param_target
            - target_label: __address__
              replacement: blackbox-exporter.default.svc.cluster.local.:9115
            - source_labels: [__param_target]
              target_label: target_url

http方式：

- job_name: 'k8s-test'
            static_configs:
              - targets: ['http://1.1.1.1:1234/xxx']
                labels:
                  test_label: 'xxx'
                  ip: 1.1.1.1
            metrics_path: /probe
            params:
              module: [http_2xx]
            relabel_configs:
            - action: labelmap
              regex: __meta_kubernetes_pod_label_(.+)
            - source_labels: [__address__]
              target_label: __param_target
            - target_label: __address__
              replacement: blackbox-exporter.default.svc.cluster.local.:9115
            - source_labels: [__param_target]
              target_label: target_url

通过blackbox请求样例：curl 'http://x.x.x.x:9115/probe?module=tcp\_connect&target=y.y.y.y:2049'

响应如下，probe\_success为1表示target是通的，为0表示不通：

# HELP probe_dns_lookup_time_seconds Returns the time taken for probe dns lookup in seconds
    # TYPE probe_dns_lookup_time_seconds gauge
    probe_dns_lookup_time_seconds 2.5184e-05
    # HELP probe_duration_seconds Returns how long the probe took to complete in seconds
    # TYPE probe_duration_seconds gauge
    probe_duration_seconds 0.000606282
    # HELP probe_failed_due_to_regex Indicates if probe failed due to regex
    # TYPE probe_failed_due_to_regex gauge
    probe_failed_due_to_regex 0
    # HELP probe_ip_protocol Specifies whether probe ip protocol is IP4 or IP6
    # TYPE probe_ip_protocol gauge
    probe_ip_protocol 4
    # HELP probe_success Displays whether or not the probe was a success
    # TYPE probe_success gauge
    probe_success 1

产生的指标样例如下：

probe_success{ip="1.1.1.1",job="k8s-test",target_url="1.1.1.1:2049",test_label="test"} 1

1表示执行telnet 1.1.1.1 2049 是通的，可表示vip是正常的  
0表示不通，有可能vip是有问题的，也可能是nfs有问题