CSS單標(biāo)簽實(shí)現(xiàn)轉(zhuǎn)轉(zhuǎn)logo
轉(zhuǎn)轉(zhuǎn)品牌升級(jí)后更新了全新的Logo，今天我們用純CSS來實(shí)現(xiàn)轉(zhuǎn)轉(zhuǎn)的新Logo，為了有一定的挑戰(zhàn)性，這里我們只使用一個(gè)標(biāo)簽實(shí)現(xiàn)，將最大化的使用CSS能力完成Logo的繪制與動(dòng)畫效果。新logo
在10 分鐘教你使用Prometheus監(jiān)控Spring Boot工程中介紹了如何使用Prometheus監(jiān)控Spring Boot提供的默認(rèn)指標(biāo)，這篇介紹如何自定義業(yè)務(wù)指標(biāo)，并使用Prometheus進(jìn)行監(jiān)控并報(bào)警，同時(shí)在 Grafana 進(jìn)行展現(xiàn)
我們模擬一個(gè)賬務(wù)系統(tǒng)，主要功能有：充值與提現(xiàn)，其中會(huì)定義5 個(gè)業(yè)務(wù)指標(biāo)，如下
針對(duì)以上5 業(yè)務(wù)指標(biāo)，會(huì)使用prometheus的三種Metrics類型，如下
最終我們對(duì)以上指標(biāo)進(jìn)行 grafana 進(jìn)行展現(xiàn)，同時(shí)對(duì)余額小于500 進(jìn)行告警通知，效果如下
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<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId></dependency><dependency> <groupId>io.micrometer</groupId> <artifactId>micrometer-registry-prometheus</artifactId></dependency>#監(jiān)控的端點(diǎn)management.endpoints.web.exposure.include=*#應(yīng)用程序名稱，在prometheus 上會(huì)顯示management.metrics.tags.applicatinotallow=${spring.application.name}#tomcat 指標(biāo)需要開啟server.tomcat.mbeanregistry.enabled=true@Service@Slf4jpublic class AccountServiceImpl implements IAccountService { @Autowired private MeterRegistry registry; //入金筆數(shù) private Counter depositCounter; // 出金筆數(shù) private Counter withdrawCounter; //入金金額 private DistributionSummary depositAmountSummary; // 出金金額 private DistributionSummary withdrawAmountSummary; //余額 private BigDecimal balance = new BigDecimal(1000); @PostConstruct private void init() { depositCounter = registry.counter("deposit_counter", "currency", "btc"); withdrawCounter = registry.counter("withdraw_counter", "currency", "btc"); depositAmountSummary = registry.summary("deposit_amount", "currency", "btc"); withdrawAmountSummary = registry.summary("withdraw_amount", "currency", "btc"); Gauge.builder("balanceGauge", () -> balance) .tags("currency", "btc") .description("余額") .register(registry); } @Override // 充值操作 public void depositOrder(BigDecimal amount) { log.info("depositOrder amount:{}", amount); try { //余額增加 balance = balance.add(amount); //充值筆數(shù)埋點(diǎn) depositCounter.increment(); //充值金額埋點(diǎn) depositAmountSummary.record(amount.doubleValue()); } catch (Exception e) { log.info("depositOrder error", e); } finally { log.info("depositOrder result:{}", amount); } } @Override //提現(xiàn)操作 public void withdrawOrder(BigDecimal amount) { log.info(" withdrawOrder amount:{}", amount); try { if (balance.subtract(amount).compareTo(BigDecimal.ZERO) < 0) { throw new Exception("提現(xiàn)金額不足，提現(xiàn)失敗"); } //余額減少 balance = balance.subtract(amount); // 提現(xiàn)筆數(shù)埋點(diǎn)數(shù)據(jù) withdrawCounter.increment(); // 提現(xiàn)金額埋點(diǎn) withdrawAmountSummary.record(amount.doubleValue()); } catch (Exception e) { log.info("withdrawOrder error", e); } finally { log.info("withdrawOrder result:{}", amount); } }}@RestController@RequestMapping(ControllerConstants.PATH_PREFIX + "/account")public class AccountController { @Autowired IAccountService accountService; /** * 充值 */ @RequestMapping(value = "/deposit", method = RequestMethod.GET) public void deposit(@RequestParam("amount") BigDecimal amount) { accountService.depositOrder(amount); } /** * 提現(xiàn) */ @RequestMapping(value = "/withdraw", method = RequestMethod.GET) public void withdraw(@RequestParam("amount") BigDecimal amount) { accountService.withdrawOrder(amount); }}##充值筆數(shù)deposit_counter_total## 充值總金額deposit_amount_sum##提現(xiàn)筆數(shù)withdraw_counter_total##提現(xiàn)總金額withdraw_amount_sum## 余額balanceGauge在prometheus.yml文件中進(jìn)行配置業(yè)務(wù)系統(tǒng)采集點(diǎn)，5s 拉取一次指標(biāo)，由于prometheus server 部署在docker 中，所以訪問主機(jī)IP 用host.docker.internal
#業(yè)務(wù)系統(tǒng)監(jiān)控 - job_name: 'SpringBoot' # Override the global default and scrape_interval: 5s metrics_path: '/actuator/prometheus' static_configs: - targets: ['host.docker.internal:8080']
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告警規(guī)則配置，在容器啟動(dòng)時(shí)用主機(jī)的/data/prometheus目錄映射到容器的/prometheus目錄，因此在主機(jī)/data/prometheus/目錄創(chuàng)建rules文件夾，并創(chuàng)建告警文件business-alert.rules，這里告警對(duì)余額小于 500 則進(jìn)行告警
groups:- name: businessAlert rules: - alert: balanceAlert expr: balanceGauge{applicatinotallow="backend"} < 500 for: 20s labels: severity: page team: g2park annotations: summary: "{{ $labels.currency }} balance is insufficient " description: "{{ $labels.currency }} balance : {{ $value }}"啟動(dòng)Prometheus，進(jìn)行驗(yàn)證，查詢采集目標(biāo)，已生效
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查詢充值次數(shù)，已采集點(diǎn)擊Alters,可以看到業(yè)務(wù)告警已經(jīng)生效
在/data/prometheus/alertmanager目錄下，新增告警模板notify-template.tmpl，此目錄映射到altermanager 的/etc/alertmanager目錄，模板包含告警和自愈兩部分，2006-01-02 15:04:05是go語言的日志格式，固定值，加28800e9表示轉(zhuǎn)換為東八區(qū)時(shí)間，即北京時(shí)間
{{ define "test.html" }} {{- if gt (len .Alerts.Firing) 0 -}}{{ range .Alerts }}<h1 align="left" style="color:red;">告警</h1><pre>告警級(jí)別: {{ .Labels.severity }} 級(jí) <br>告警類型: {{ .Labels.alertname }} <br>故障主機(jī): {{ .Labels.instance }} <br>告警主題: {{ .Annotations.summary }} <br>告警詳情: {{ .Annotations.description }} <br>告警時(shí)間：{{ (.StartsAt.Add 28800e9).Format "2006-01-02 15:04:05" }}<br> </pre>{{ end }}{{ end }}{{- if gt (len .Alerts.Resolved) 0 -}}{{ range .Alerts }}<h1 align="left" style="color:green;">恢復(fù)</h1><pre>告警名稱：{{ .Labels.alertname }}<br>告警級(jí)別：{{ .Labels.severity }}<br>告警機(jī)器：{{ .Labels.instance }}<br>告警主題：{{ .Annotations.summary }}<br>告警主題：{{ .Annotations.description }}<br>告警時(shí)間：{{ (.StartsAt.Add 28800e9).Format "2006-01-02 15:04:05" }}<br> 恢復(fù)時(shí)間：{{ (.EndsAt.Add 28800e9).Format "2006-01-02 15:04:05" }}<br> </pre>{{- end }}{{- end }}{{- end }}修改alertmanager.yml為以下內(nèi)容，替換對(duì)應(yīng)賬號(hào)即可
global: smtp_smarthost: smtp.qq.com:465 smtp_from: 9238223@qq.com smtp_auth_username: 9238223@qq.com smtp_auth_identity: 9238223@qq.com smtp_auth_password: 123 smtp_require_tls: falsetemplates: #添加模板 - '/etc/alertmanager/notify-template.tmpl' #指定路徑 route: group_by: ['alertname'] receiver: 'default-receiver' group_wait: 30s group_interval: 5m repeat_interval: 1hreceivers: - name: default-receiver email_configs: - to: abc123@foxmail.com html: '{{ template "test.html" . }}' send_resolved: true headers: { Subject: "系統(tǒng)監(jiān)控告警{{- if gt (len .Alerts.Resolved) 0 -}}恢復(fù){{ end }}" }global: 這是一個(gè)全局配置部分，用于配置全局的Alertmanager設(shè)置。
route: 用于配置警報(bào)的路由規(guī)則。
receivers: 接收者部分，用于配置接收告警通知的收件人。
啟動(dòng)Altermanager，進(jìn)行驗(yàn)證
docker start alertmanager訪問stauts，如果出現(xiàn)以下結(jié)果則成功
告警驗(yàn)證，系統(tǒng)默認(rèn)余額為1000，調(diào)用backend/account/withdraw提現(xiàn)接口，使余額降至500，進(jìn)行報(bào)警
等待20s 左右，prometheus 收到報(bào)警會(huì)推送至Altermanager
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Altermanager則會(huì)根據(jù)我們配置時(shí)間等待 30s，進(jìn)行通知告警
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自愈驗(yàn)證，調(diào)用充值backend/account/deposit接口，使余額大于500，等待6m 左右會(huì)收到自愈告警，如果嫌時(shí)間比較長(zhǎng)，修改alertmanager.yml中 group_wait、group_interval參數(shù)值即可
啟動(dòng) Grafana，點(diǎn)擊新增面板，創(chuàng)建三種圖表，分別為余額走勢(shì)、提現(xiàn)與充值金額占比、提現(xiàn)與充值筆數(shù)走勢(shì)圖，如下
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余額走勢(shì)，報(bào)表類型為Stat
sum(balanceGauge{applicatinotallow="backend"})
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提現(xiàn)與充值金額占比，報(bào)表類型為Pie chart
withdraw_amount_sum{applicatinotallow="backend"}deposit_amount_sum{applicatinotallow="backend"}提現(xiàn)與充值筆數(shù)走勢(shì)圖，報(bào)表類型為Time series
increase(deposit_counter_total{applicatinotallow="backend"}[5m])increase(withdraw_counter_total{applicatinotallow="backend"}[5m])以上介紹了如何在Spring Boot中自定義業(yè)務(wù)指標(biāo)以及對(duì)指標(biāo)進(jìn)行監(jiān)控和告警，希望對(duì)你所幫助，注意以上示例只是為了簡(jiǎn)單便于理解才是這樣寫，真實(shí)使用中，指標(biāo)可以與數(shù)據(jù)庫(kù)或者緩存進(jìn)行結(jié)合，比如余額報(bào)警，調(diào)用查詢余額接口即可。
本文鏈接：http://www.tebozhan.com/showinfo-26-55323-0.html在SpringBoot中自定義指標(biāo)并使用Prometheus監(jiān)控報(bào)警
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