Elixir:仅针对Prometheus指标启动http服务器 [英] Elixir: start http server only for prometheus metrics
问题描述
我有以下代码:
defmodule MyApp.Http do
use Application
require Logger
def start(_type, _args) do
import Supervisor.Spec, warn: false
MyApp.PlugPipelineInstrumenter.setup()
MyApp.MetricsExporter.setup()
opts = [strategy: :one_for_one, name: MyApp.Http.Supervisor]
Supervisor.start_link([], opts)
end
end
defmodule MyApp.MetricsExporter do
use Prometheus.PlugExporter
end
defmodule MyApp.PlugPipelineInstrumenter do
use Prometheus.PlugPipelineInstrumenter
end
但是它什么也没做。当我添加时:
But it does nothing. When I add:
plug MyApp.MetricsExporter
plug MyApp.PlugPipelineInstrumenter
我得到编译错误:未定义的功能插件/ 1
。我使用长生不老药1.10.3。我在这里怎么办?
I get compilation error: undefined function plug/1
. I use elixir 1.10.3. What do I do wrong here?
推荐答案
我制作了一个名为 prometheus_sidecar 会创建一个专门用于Prometheus的牧场服务器(这样您就可以在任何长生不老药应用程序中运行它)并连接 prometheus_plugs 为您提供。
I made a hex package called prometheus_sidecar that creates a ranch server dedicated to prometheus (so you could run it in any elixir application) and wires up prometheus_plugs for you.
它利用erlang的应用程序启动生命周期,因此除了添加它外,不需要任何配置。
It leverages erlang's application start lifecycle so there is no required configuration, besides adding it as a library to your application.
让我知道您是否认为它有用。
Let me know if you find it useful.
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