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CloudWatch: remove references to json in template variable docs (#48593)

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* CloudWatch: remove references to json in docs

* docs comments
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Isabella Siu
2022-05-02 15:21:53 -04:00
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commit 66cbf2c422
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docs/sources/datasources/aws-cloudwatch/template-queries-cloudwatch.md
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@@ -13,7 +13,7 @@ For an introduction to templating and template variables, refer to the [Templati
## Query variable
The CloudWatch data source provides the following queries that you can specify in the `Query Type` field in the Variable edit view. They enable you to fill a variable's options list with values such as `region`, `namespaces`, `metric names` and `dimension keys/values`.
You can use the following CloudWatch data source queries to specify the `Query Type` field in the Variable edit view. Use them to fill a variables options list with values like `regions`, `namespaces`, `metric names`, and `dimension keys/values`.
Read more about the available dimensions in the [CloudWatch Metrics and Dimensions Reference](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CW_Support_For_AWS.html).
@@ -35,29 +35,12 @@ For details about the metrics CloudWatch provides, please refer to the [CloudWat
Variables can be used in the variable form. Refer to the [variable syntax documentation]({{< relref "../../variables/syntax.md" >}}).
## Using JSON format template variables
Some queries accept filters in JSON format and Grafana supports the conversion of template variables to JSON.
For example, if `env = 'production', 'staging'`, a `Resource ARNs` query with the following filter returns ARNs of EC2 instances where the `Environment` tag is equal to `production` or `staging`.
```javascript
{"Environment":${env:json}}
```
## ec2_instance_attribute examples
### JSON filters
### Filters
The `ec2_instance_attribute` query takes `filters` in JSON format.
The `ec2_instance_attribute` query takes in `filters` as a filter name and a comma-separated list of values.
You can specify [pre-defined filters of ec2:DescribeInstances](http://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DescribeInstances.html).
Note that the actual filtering takes place on Amazon's servers, not in Grafana.
Filters syntax:
```javascript
{ "filter_name1": [ "filter_value1" ], "filter_name2": [ "filter_value2" ] }
```
### Selecting attributes