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  • Prometheus+Grafana+Altermanager监控告警(一)

    参考

    https://blog.csdn.net/yanggd1987/article/details/108807171
    https://help.aliyun.com/document_detail/123394.html
    https://blog.csdn.net/baidu_36943075/article/details/91829364
    https://blog.csdn.net/liukuan73/article/details/78881008
    https://blog.csdn.net/aixiaoyang168/article/details/98474494

    安装启动Prometheus

    cat prome_run.sh

    docker rm -f prometheus
    docker run --name=prometheus -d 
    --restart=always 
    -p 9090:9090 
    -v /data/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml 
    -v /data/prometheus/rules.yml:/etc/prometheus/rules.yml 
    -v /data/prometheus/data:/data 
    -v /data/prometheus/host_discovery_data:/host_discovery_data 
    -v /data/prometheus/prometheus_rules:/prometheus_rules 
    -v /etc/localtime:/etc/localtime 
    prom/prometheus:v2.30.2 
    --config.file=/etc/prometheus/prometheus.yml 
    --storage.tsdb.path=/data 
    --storage.tsdb.retention=30d 
    --web.external-url=http://10.5.250.10 
    --web.enable-lifecycle

    rules.yml是个目录,告警规则在Prometheus_rules里面

    cat prometheus.yml

    global:
      scrape_interval:     15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
      scrape_timeout:      15s
      evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
      # scrape_timeout is set to the global default (10s).
    rule_files:
    - /prometheus_rules/*.rules
    scrape_configs:
    - job_name: prometheus
      static_configs:
      - targets:
        - localhost:9090
    - job_name: 'host_discovery'
      file_sd_configs:
        - files:
          - "/host_discovery_data/*.json"
          refresh_interval: 3s
    
    - job_name: "kube-state-metrics"
      scheme: https
      tls_config:
        insecure_skip_verify: true
      #使用apiserver授权部分解密的token值,以文件形式存储
      bearer_token_file: /data/xn-secret
      # k8s自动发现具体配置
      kubernetes_sd_configs:
      # 使用endpoint级别自动发现
      - role: endpoints
        api_server: "https://10.3.218.10:16443"
        tls_config:
          insecure_skip_verify: true
        bearer_token_file: /data/xn-secret
      relabel_configs:
      - source_labels: [__meta_kubernetes_service_name]
        # 只保留指定匹配正则的标签,不匹配则删除
        action: keep
        #regex: '^(kube-state-metrics)$'
        regex: '^(prometheus-operator-kube-state-metrics)$'
    #  - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape]
        # 只保留指定匹配正则的标签,不匹配则删除
    #    action: keep
    #    regex: true
      - source_labels: [__address__]
        action: replace
        target_label: instance
      - target_label: __address__
        # 使用replacement值替换__address__默认值
        replacement: 10.3.218.10:16443
      - source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_pod_name, __meta_kubernetes_pod_container_port_number]
        # 正则匹配
        regex: ([^;]+);([^;]+);([^;]+)
        # 使用replacement值替换__metrics_path__默认值
        target_label: __metrics_path__
        # 自行构建的apiserver proxy url
        replacement: /api/v1/namespaces/${1}/pods/http:${2}:${3}/proxy/metrics
      - action: labelmap
        regex: __meta_kubernetes_service_label_(.+)
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        # 将标签__meta_kubernetes_namespace修改为kubernetes_namespace
        target_label: kubernetes_namespace
      - source_labels: [__meta_kubernetes_service_name]
        action: replace
        # 将标签__meta_kubernetes_service_name修改为service_name
        target_label: service_name
    
    - job_name: "kube-node-exporter"
      scheme: https
      tls_config:
        insecure_skip_verify: true
      #使用apiserver授权部分解密的token值,以文件形式存储
      bearer_token_file: /data/xn-secret
      # k8s自动发现具体配置
      kubernetes_sd_configs:
      # 使用endpoint级别自动发现
      - role: endpoints
        api_server: "https://10.3.218.10:16443"
        tls_config:
          insecure_skip_verify: true
        bearer_token_file: /data/xn-secret
      relabel_configs:
      - source_labels: [__meta_kubernetes_service_name]
        # 只保留指定匹配正则的标签,不匹配则删除
        action: keep
        regex: '^(prometheus-operator-prometheus-node-exporter)$'
      - source_labels: [__address__]
        action: replace
        target_label: instance
      - target_label: __address__
        # 使用replacement值替换__address__默认值
        replacement: 10.3.218.10:16443
      - source_labels: [__meta_kubernetes_endpoint_node_name]
        # 正则匹配
        regex: (.+)
        # 使用replacement值替换__metrics_path__默认值
        target_label: __metrics_path__
        # 自行构建的apiserver proxy url
        replacement: /api/v1/nodes/${1}:9100/proxy/metrics
      - action: labelmap
        regex: __meta_kubernetes_service_label_(.+)
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        # 将标签__meta_kubernetes_namespace修改为kubernetes_namespace
        target_label: kubernetes_namespace
      - source_labels: [__meta_kubernetes_service_name]
        action: replace
        # 将标签__meta_kubernetes_service_name修改为service_name
        target_label: service_name
    
    #pods
    #- job_name: "kube-pods"
    #  scheme: https
    #  tls_config:
    #    insecure_skip_verify: true
    #  #使用apiserver授权部分解密的token值,以文件形式存储
    #  bearer_token_file: /data/xn-secret
    #  # k8s自动发现具体配置
    #  kubernetes_sd_configs:
    #  # 使用endpoint级别自动发现
    #  - role: pod
    #    api_server: "https://10.3.218.10:16443"
    #    tls_config:
    #      insecure_skip_verify: true
    #    bearer_token_file: /data/xn-secret
    #  relabel_configs:
    #  - source_labels: [__address__]
    #    action: replace
    #    target_label: instance
    #  - target_label: __address__
    #    # 使用replacement值替换__address__默认值
    #    replacement: 10.3.218.10:16443
    #  - source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_pod_name, __meta_kubernetes_pod_container_port_number]
    #    # 正则匹配
    #    regex: ([^;]+);([^;]+);([^;]+)
    #    # 使用replacement值替换__metrics_path__默认值
    #    target_label: __metrics_path__
    #    # 自行构建的apiserver proxy url
    #    replacement: /api/v1/namespaces/${1}/pods/http:${2}:${3}/proxy/metrics
    #  - action: labelmap
    #    regex: __meta_kubernetes_service_label_(.+)
    #  - source_labels: [__meta_kubernetes_namespace]
    #    action: replace
    #    # 将标签__meta_kubernetes_namespace修改为kubernetes_namespace
    #    target_label: kubernetes_namespace
    #  - source_labels: [__meta_kubernetes_service_name]
    #    action: replace
    #    # 将标签__meta_kubernetes_service_name修改为service_name
    #    target_label: service_name
    
    
    # kubelet
    - job_name: "kube-node-kubelet"
      scheme: https
      tls_config:
        insecure_skip_verify: true
      bearer_token_file: /data/xn-secret
      kubernetes_sd_configs:
      - role: node
        api_server: "https://10.3.218.10:16443"
        tls_config:
          insecure_skip_verify: true
        bearer_token_file: /data/xn-secret
      relabel_configs:
      - target_label: __address__
        # 使用replacement值替换__address__默认值
        replacement: 10.3.218.10:16443
      - source_labels: [__meta_kubernetes_node_name]
        regex: (.+)
        # 使用replacement值替换__metrics_path__默认值
        target_label: __metrics_path__
        replacement: /api/v1/nodes/${1}:10250/proxy/metrics
      - action: labelmap
        regex: __meta_kubernetes_service_label_(.+)
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        target_label: kubernetes_namespace
      - source_labels: [__meta_kubernetes_service_name]
        action: replace
        target_label: service_name
      - source_labels: [__meta_kubernetes_node_address_InternalIP]
        separator: ;
        regex: (.*)
        target_label: IP
        replacement: $1
        action: replace
    
    # advisor    
    - job_name: "kube-node-cadvisor"
      scheme: https
      tls_config:
        insecure_skip_verify: true
      bearer_token_file: /data/xn-secret
      kubernetes_sd_configs:
      - role: node
        api_server: "https://10.3.218.10:16443"
        tls_config:
          insecure_skip_verify: true
        bearer_token_file: /data/xn-secret
      relabel_configs:
      - target_label: __address__
        # 使用replacement值替换__address__默认值
        replacement: 10.3.218.10:16443
      - source_labels: [__meta_kubernetes_node_name]
        regex: (.+)
        # 使用replacement值替换__metrics_path__默认值
        target_label: __metrics_path__
        replacement: /api/v1/nodes/${1}:10250/proxy/metrics/cadvisor
      - action: labelmap
        regex: __meta_kubernetes_service_label_(.+)
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        target_label: kubernetes_namespace
      - source_labels: [__meta_kubernetes_service_name]
        action: replace
        target_label: service_name
    
    alerting:
      alertmanagers:
        - static_configs:
          - targets: ['10.5.250.10:9093']
    View Code

    host_discovery_data自动将list转化成json

    cat redis.list

    10.3.238.75     xinxi-prod-redis-caiwujihe01
    10.3.238.76     xinxi-prod-redis-caiwujihe02
    10.5.250.29     xinxi-prod-redis-caiwushoudan01
    10.5.250.188    xinxi-prod-redis-caiwushoudan02
    10.5.250.8      xinxi-prod-redis-caigou
    10.5.250.133    xinxi-prod-redis-tanxiao
    10.5.250.133    xinxi-prod-redis-caigoufentan
    10.5.250.175    xinxi-prod-redis-fawuhetong
    10.3.238.86     xinxi-prod-redis-fawushoudan01
    10.3.238.87     xinxi-prod-redis-fawushoudan02
    10.3.238.173    xinxi-prod-redis-shucang01
    10.3.238.174    xinxi-prod-redis-shucang02
    10.3.238.186    xinxi-prod-redis-touzi
    10.3.238.55     xinxi-prod-redis-rencai01
    10.3.238.56     xinxi-prod-redis-rencai02
    10.3.215.182    xinxi-prod-redis-changqijili01
    10.3.215.195    xinxi-prod-redis-changqijili02
    10.3.238.245    xinxi-prod-redis-zijinjianguan01
    10.3.238.246    xinxi-prod-redis-zijinjianguan02
    10.3.248.6      xinxi-prod-redis-caigouToC01
    10.3.248.7      xinxi-prod-redis-caigouToC02
    ​cat redis.json
    [{"targets": ["10.3.238.75:9100"], "labels": {"cluster": "redis", "instance": "10.3.238.75", "alias": "xinxi-prod-redis-caiwujihe01"}}, {"targets": ["10.3.238.76:9100"], "labels": {"cluster": "redis", "instance": "10.3.238.76", "alias": "xinxi-prod-redis-caiwujihe02"}}, {"targets": ["10.5.250.29:9100"], "labels": {"cluster": "redis", "instance": "10.5.250.29", "alias": "xinxi-prod-redis-caiwushoudan01"}}, {"targets": ["10.5.250.188:9100"], "labels": {"cluster": "redis", "instance": "10.5.250.188", "alias": "xinxi-prod-redis-caiwushoudan02"}}, {"targets": ["10.5.250.8:9100"], "labels": {"cluster": "redis", "instance": "10.5.250.8", "alias": "xinxi-prod-redis-caigou"}}, {"targets": ["10.5.250.133:9100"], "labels": {"cluster": "redis", "instance": "10.5.250.133", "alias": "xinxi-prod-redis-tanxiao"}}, {"targets": ["10.5.250.133:9100"], "labels": {"cluster": "redis", "instance": "10.5.250.133", "alias": "xinxi-prod-redis-caigoufentan"}}, {"targets": ["10.5.250.175:9100"], "labels": {"cluster": "redis", "instance": "10.5.250.175", "alias": "xinxi-prod-redis-fawuhetong"}}, {"targets": ["10.3.238.86:9100"], "labels": {"cluster": "redis", "instance": "10.3.238.86", "alias": "xinxi-prod-redis-fawushoudan01"}}, {"targets": ["10.3.238.87:9100"], "labels": {"cluster": "redis", "instance": "10.3.238.87", "alias": "xinxi-prod-redis-fawushoudan02"}}, {"targets": ["10.3.238.173:9100"], "labels": {"cluster": "redis", "instance": "10.3.238.173", "alias": "xinxi-prod-redis-shucang01"}}, {"targets": ["10.3.238.174:9100"], "labels": {"cluster": "redis", "instance": "10.3.238.174", "alias": "xinxi-prod-redis-shucang02"}}, {"targets": ["10.3.238.186:9100"], "labels": {"cluster": "redis", "instance": "10.3.238.186", "alias": "xinxi-prod-redis-touzi"}}, {"targets": ["10.3.238.55:9100"], "labels": {"cluster": "redis", "instance": "10.3.238.55", "alias": "xinxi-prod-redis-rencai01"}}, {"targets": ["10.3.238.56:9100"], "labels": {"cluster": "redis", "instance": "10.3.238.56", "alias": "xinxi-prod-redis-rencai02"}}, {"targets": ["10.3.215.182:9100"], "labels": {"cluster": "redis", "instance": "10.3.215.182", "alias": "xinxi-prod-redis-changqijili01"}}, {"targets": ["10.3.215.195:9100"], "labels": {"cluster": "redis", "instance": "10.3.215.195", "alias": "xinxi-prod-redis-changqijili02"}}, {"targets": ["10.3.238.245:9100"], "labels": {"cluster": "redis", "instance": "10.3.238.245", "alias": "xinxi-prod-redis-zijinjianguan01"}}, {"targets": ["10.3.238.246:9100"], "labels": {"cluster": "redis", "instance": "10.3.238.246", "alias": "xinxi-prod-redis-zijinjianguan02"}}, {"targets": ["10.3.248.6:9100"], "labels": {"cluster": "redis", "instance": "10.3.248.6", "alias": "xinxi-prod-redis-caigouToC01"}}, {"targets": ["10.3.248.7:9100"], "labels": {"cluster": "redis", "instance": "10.3.248.7", "alias": "xinxi-prod-redis-caigouToC02"}}]

    转换脚本

    # -*- coding: utf-8 -*-
    import os
    import logging
    import json
    import time
    
    
    def log_level(level):
    
        if level == "DEBUG":
            logging.basicConfig(level=logging.DEBUG,
                                format='%(asctime)s - %(levelname)s %(message)s',
                                datefmt='%Y-%m-%d,%H:%M:%S',
                                )
            logging.info("log_level:%s", log_level)
            logging.info("Debug mode")
        else:
            logging.basicConfig(level=logging.INFO,
                                format='%(asctime)s - %(levelname)s %(message)s',
                                datefmt='%Y-%m-%d,%H:%M:%S',
                                )
    
    
    def read_list_file():
        dirnames = 'host_discovery_data'
        read_file_names = [name for name in os.listdir(dirnames)
                if name.endswith('.list')]
        for read_file_name in read_file_names:
    
            fo = open(dirnames + '/' + read_file_name, "r")
            node_dict_list = list()
            for fo_line in fo.readlines():
                fo_line = fo_line.rstrip("
    ")
                # for fo_line_element in fo_line.split():
                #     logging.debug("file_name: %s - fo_line_element: %s", read_file_name, fo_line_element)
                node_ip = fo_line.split()[0]
                node_alias = fo_line.split()[1]
                # logging.debug("node_ip: %s - node_alias: %s", node_ip, node_alias)
    
                node_dict = dict()
                node_labels_dict = dict()
                node_labels_dict['cluster'] = read_file_name.replace('.list', '')
                node_dict['targets'] = [node_ip + ':9100']
                node_labels_dict['instance'] = node_ip
                node_labels_dict['alias'] = node_alias
                node_dict['labels'] = node_labels_dict
                node_dict_list.append(node_dict)
                # logging.debug("node_dict_list: %s - type %s", node_dict_list, type(node_dict_list))
            node_json = json.dumps(node_dict_list)
            logging.debug("node_json: %s - type %s", node_json, type(node_json))
            # 将json 写入文件
            node_write_filename = dirnames + '/' + read_file_name.replace('.list', '') + '.json'
            fw = open(node_write_filename, "w")
            fw.write(node_json)
    
    
    def run():
        # 设置LOG 级别
        level = "INFO"
        log_level(level)
        # 持续运行
        while True:
            read_list_file()
            time.sleep(10)
    
    if __name__ == '__main__':
        run()
    View Code
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  • 原文地址:https://www.cnblogs.com/litzhiai/p/15429664.html
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