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이 문서에서는 PHP 중국어 웹사이트 매뉴얼 풀어 주다
문자
Prometheus 是一个开源系统监控和警报工具包。您可以将 Docker 配置为 Prometheus 目标。本主题向您展示如何配置 Docker，设置 Prometheus 作为 Docker 容器运行，并使用 Prometheus 监控 Docker 实例。
警告：可用指标和这些指标的名称正在积极开发中，并可能随时更改。
目前，您只能监控 Docker 本身。您目前无法使用 Docker 目标监控您的应用程序。
配置 Docker
要将 Docker 守护程序配置为 Prometheus 目标，您需要指定metrics-address。最好的方法是通过daemon.json默认情况下位于以下位置之一的。如果该文件不存在，请创建它。
Linux：
/etc/docker/daemon.json
Windows 服务器：
C:\ProgramData\docker\config\daemon.json
适用于 Mac 的 Docker for Mac / Docker：单击工具栏中的 Docker 图标，选择 Preferences，然后选择 Daemon。点击高级。
如果该文件当前为空，请粘贴以下内容：
{ "metrics-addr" : "127.0.0.1:9323", "experimental" : true}如果文件不为空，请添加这两个键，确保生成的文件是有效的JSON。请注意，除了最后一行，每行都以逗号（,）结尾。
保存文件，或者在 Docker for Mac 或 Docker for Windows 的情况下，保存配置。重新启动 Docker。
Docker 现在在端口9323上公开 Prometheus 兼容指标。
配置并运行 Prometheus
在此示例中，Prometheus 在同一主机上作为 Docker 容器运行。
复制以下配置文件之一并将其保存到/tmp/prometheus.yml。这是一个普通存储 Prometheus 配置文件，除了在文件底部添加 Docker 作业定义之外。Docker for Mac 和 Docker for Windows 需要稍微不同的配置。
Docker for Linux
Docker for Mac 或 Windows
# my global config global: scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute. evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute. # scrape_timeout is set to the global default (10s). # Attach these labels to any time series or alerts when communicating with # external systems (federation, remote storage, Alertmanager). external_labels: monitor: 'codelab-monitor'# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.rule_files: # - "first.rules" # - "second.rules"# A scrape configuration containing exactly one endpoint to scrape:# Here it's Prometheus itself.scrape_configs: # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config. - job_name: 'prometheus' # metrics_path defaults to '/metrics' # scheme defaults to 'http'. static_configs: - targets: ['localhost:9090'] - job_name: 'docker' # metrics_path defaults to '/metrics' # scheme defaults to 'http'. static_configs: - targets: ['localhost:9323']
# my global config global: scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute. evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute. # scrape_timeout is set to the global default (10s). # Attach these labels to any time series or alerts when communicating with # external systems (federation, remote storage, Alertmanager). external_labels: monitor: 'codelab-monitor'# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.rule_files: # - "first.rules" # - "second.rules"# A scrape configuration containing exactly one endpoint to scrape:# Here it's Prometheus itself.scrape_configs: # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config. - job_name: 'prometheus' # metrics_path defaults to '/metrics' # scheme defaults to 'http'. static_configs: - targets: ['localhost:9090'] - job_name: 'docker' # metrics_path defaults to '/metrics' # scheme defaults to 'http'. static_configs: - targets: ['192.168.65.1:9323']
接下来，使用此配置启动单个副本 Prometheus 服务。
$ docker service create --replicas 1 --name my-prometheus \ --mount type=bind,source=/tmp/prometheus.yml,destination=/etc/prometheus/prometheus.yml \ --publish 9090:9090/tcp \ prom/prometheus
验证 Docker 目标是否在http：// localhost：9090 / targets / 中列出。
如果您使用 Docker for Mac 或 Docker for Windows，则无法直接访问端点 URL。
使用 Prometheus
创建一个图。点击 Prometheus UI 中的图表链接。从“ 执行”按钮右侧的组合框中选择一个度量标准，然后单击“ 执行”。以下屏幕截图显示了图表engine_daemon_network_actions_seconds_count。
上图显示了一个相当闲置的 Docker 实例。如果您正在运行活动工作负载，则您的图形可能看起来不同
为了使图表更有趣，可以通过启动一项服务来创建一些网络操作，其中包括10个任务，它们可以不停地 ping Docker（您可以将 ping 目标更改为任何您喜欢的任务）：
$ docker service create \ --replicas 10 \ --name ping_service \ alpine ping docker.com
等待几分钟（默认刮取间隔为15秒）并重新加载图形。
准备就绪后，请停止并删除ping_service服务，以免无缘无故地淹没有ping的主机。
$ docker service remove ping_service
等待几分钟，你会发现图表回落到闲置状态。
下一步
阅读 Prometheus 文档
设置一些警报