add monitor docker template

content/v2.0/monitor-alert/templates/infrastructure/docker.md

@@ -0,0 +1,49 @@
+---
+title: Monitor Docker
+description: >
+  Use the [Docker Monitoring template](https://https://github.com/influxdata/community-templates/tree/master/docker) to monitor your Docker containers.
+menu:
+  v2_0:
+    parent: Infrastructure
+    name: Docker
+weight: 202
+---
+
+Use the [Docker Monitoring template](https://https://github.com/influxdata/community-templates/tree/master/docker) to monitor your Docker containers.
+This template uses the [Docker input plugin](/v2.0/reference/telegraf-plugins/#docker) to collect metrics stored in InfluxDB and display these metrics in a dashboard.
+
+The Docker Monitoring template includes the following:
+
+- one dashboard: **Docker**
+- one bucket: `docker, 7d retention`
+- labels: Telegraf plugin labels
+- one Telegraf configuration: Docker input plugin
+- one variable: `bucket`
+- four alerts: `Container cpu`, `mem`, `disk`, `non-zero exit`
+- one notification endpoint: `Http Post`
+- one notification rule: `Crit Alert`
+
+## Apply the template
+
+1. Use the [`influx` CLI](/v2.0/reference/cli/influx/) to run the following command:
+
+    ```sh
+    influx apply -f hhttps://raw.githubusercontent.com/influxdata/community-templates/master/docker/docker.yml
+    ```
+    For more information, see [influx apply](/v2.0/reference/cli/influx/apply/).
+
+   > **Note:** Ensure your `influx` CLI is configured with your account credentials and that configuration is active. For more information, see [influx config](https://v2.docs.influxdata.com/v2.0/reference/cli/influx/config/).
+
+2. [Install Telegraf](/telegraf/latest/introduction/installation/) on a server with network access to both the Docker containers and [InfluxDB v2 API](/v2.0/reference/api/).
+3. In your [Telegraf configuration file (`telegraf.conf`)](/v2.0/write-data/no-code/use-telegraf/auto-config/view-telegraf-config/), do the following:
+    - Depending on how you run Docker, you may need to customize the [Docker input plugin](/v2.0/reference/telegraf-plugins/#docker) configuration, for example, you may need to specify the `endpoint value`.
+    - Set the following environment variables:
+      - INFLUX_TOKEN: Token with the permissions to read Telegraf configurations and write data to the `telegraf` bucket. For example, use your master token to get started. See how to [view tokens](/v2.0/security/tokens/view-tokens/).
+      - INFLUX_ORG: Name of your organization. See how to [view your organization](/v2.0/organizations/view-orgs/).
+      - INFLUX_HOST: Your InfluxDB host URL, for example, localhost, a remote instance, or InfluxDB Cloud.
+
+4. [Start Telegraf](/v2.0/write-data/no-code/use-telegraf/auto-config/#start-telegraf).
+5. View the incoming data. In the InfluxDB user interface (UI), select **Boards** (**Dashboards**).
+
+    {{< nav-icon "dashboards" >}}
+6. Open the **Docker** dashboard to start monitoring.