1 部署 consul
    https://github.com/hashicorp/consul
    https://developer.hashicorp.com/consul/docs/k8s/installation/install
    helm部署

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    2 Promethues 对接consul
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    添加consul配置

    1. - job_name: 'consul-endpoints'
    2.   consul_sd_configs:
    3.     - server: "consul-server.infrastructure-test.svc:8500"
    4.       services: []  
    5.   relabel_configs:
    6.     - source_labels: [__meta_consul_tags]
    7.       regex: 'consul'
    8.       action: drop
    9.     - regex: __meta_consul_service_metadata_(.+)
    10.       action: labelmap 
    11.     - action: replace
    12.       source_labels: [__address__] 
    13.       regex: (.*):(.*)
    14.       replacement: $1
    15.       target_label: instance

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