docs: add doris template (#2260)

integrations/Doris/collect/prometheus/collect_doris_examples.toml

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+# doris_fe
+[[instances]]
+# 配置 fe metrics 服务地址
+urls = [
+     "http://127.0.0.1:8030/metrics"
+]
+
+url_label_key = "instance"
+url_label_value = "{{.Host}}"
+# 指定 fe 服务 group 和 job 标签，这里是仪表盘变量调用，可根据实际需求修改。
+labels = { group = "fe",job = "doris_cluster01"}
+
+# doris_be
+[[instances]]
+# 配置 be metrics 服务地址
+urls = [
+     "http://127.0.0.1:8040/metrics"
+]
+url_label_key = "instance"
+url_label_value = "{{.Host}}"
+# 指定 be 服务 group 和 job 标签，这里是仪表盘变量调用，可根据实际需求修改。
+labels = { group = "be",job = "doris_cluster01"}

integrations/Doris/icon/doris.svg

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 27.6.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<svg version="1.1" id="图层_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 viewBox="0 0 30 30" style="enable-background:new 0 0 30 30;" xml:space="preserve">
+<style type="text/css">
+	.st0{fill:#00A5CA;}
+	.st1{fill:#3ACA9B;}
+	.st2{fill:#405AAD;}
+</style>
+<g>
+	<g>
+		<g>
+			<path class="st0" d="M17.4,4.6l-3.3-3.3c-0.4-0.4-0.9-0.8-1.5-1C12.1,0.1,11.5,0,11,0C9.9,0,8.8,0.4,8,1.2C7.6,1.6,7.3,2,7.1,2.6
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+				C17.6,10.5,20.2,7.4,17.4,4.6z"/>
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+				c-3.4,3.4-6.9,6.9-10.3,10.3l-0.5,0.5c-0.7,0.6-1.2,1.5-1.3,2.4c-0.1,0.7,0,1.3,0.2,2c0.2,0.6,0.5,1.2,1,1.7
+				c0.4,0.4,0.9,0.8,1.4,1c0.5,0.2,1.1,0.3,1.7,0.3c1.3,0,2-0.2,3-1.1c3.9-3.8,7.8-7.7,10.8-10.6c1.4-1.4,1.7-3.7,0.7-5.2
+				C24.8,11.8,23.8,10.8,22.8,9.8z"/>
+			<path class="st2" d="M3.8,7.8v14.5c0,0.2,0,0.3,0.1,0.4C4,22.8,4.1,22.9,4.3,23c0.1,0,0.3,0,0.5,0c0.2,0,0.3-0.1,0.4-0.2l7.3-7.3
+				c0.1-0.1,0.2-0.3,0.2-0.5s-0.1-0.4-0.2-0.5L5.2,7.2C5.1,7.1,5,7.1,4.9,7C4.8,7,4.7,7,4.6,7C4.4,7,4.2,7.1,4,7.2
+				C3.9,7.4,3.8,7.6,3.8,7.8z"/>
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+</g>
+</svg>

integrations/Doris/markdown/README.md

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+# Doris
+
+Doris 的进程都会暴露 `/metrics` 接口，通过这个接口暴露 Prometheus 协议的监控数据。
+
+## 采集配置
+
+categraf 的 `conf/input.prometheus/prometheus.toml`。因为 Doris 是暴露的 Prometheus 协议的监控数据，所以使用 categraf 的 prometheus 插件即可采集。
+
+```toml
+# doris_fe
+[[instances]]
+urls = [
+     "http://127.0.0.1:8030/metrics"
+]
+
+url_label_key = "instance"
+url_label_value = "{{.Host}}"
+
+labels = { group = "fe",job = "doris_cluster01"}
+
+# doris_be
+[[instances]]
+urls = [
+     "http://127.0.0.1:8040/metrics"
+]
+url_label_key = "instance"
+url_label_value = "{{.Host}}"
+labels = { group = "be",job = "doris_cluster01"}
+```
+
+## 告警规则
+
+夜莺内置了 Doris 的告警规则，克隆到自己的业务组下即可使用。
+
+## 仪表盘
+
+夜莺内置了 Doris 的仪表盘，克隆到自己的业务组下即可使用。
+
+