# Using ec2\$1instance\$1attribute examples
<a name="cloudwatch-ec2-instance-attribute-examples"></a>

## JSON filters
<a name="json-filters"></a>

 The `ec2_instance_attribute` query takes `filters` in JSON format. You can specify pre-defined filters of `ec2:DescribeInstances`. Note that the actual filtering takes place in AWS, not in Grafana. 

 The following code example shows the filters syntax. 

```
{ filter_name1: [ filter_value1 ], filter_name2: [ filter_value2 ] }
```

 The following example shows the `ec2_instance_attribute()` query. 

```
ec2_instance_attribute(us - east - 1, InstanceId, { 'tag:Environment': ['production'] });
```

## Selecting attributes
<a name="cloudwatch-selecting-attributes"></a>

 Only one attribute per instance can be returned. Any flat attribute can be selected (that is, if the attribute has a single value and isn’t an object or array). The following flat attributes are available. 
+  `AmiLaunchIndex` 
+  `Architecture` 
+  `ClientToken` 
+  `EbsOptimized` 
+  `EnaSupport` 
+  `Hypervisor` 
+  `IamInstanceProfile` 
+  `ImageId` 
+  `InstanceId` 
+  `InstanceLifecycle` 
+  `InstanceType` 
+  `KernelId` 
+  `KeyName` 
+  `LaunchTime` 
+  `Platform` 
+  `PrivateDnsName` 
+  `PrivateIpAddress` 
+  `PublicDnsName` 
+  `PublicIpAddress` 
+  `RamdiskId` 
+  `RootDeviceName` 
+  `RootDeviceType` 
+  `SourceDestCheck` 
+  `SpotInstanceRequestId` 
+  `SriovNetSupport` 
+  `SubnetId` 
+  `VirtualizationType` 
+  `VpcId` 

 Tags can be selected by prefixing the tag name with `Tags`. 

 The following example shows the `ec2_instance_attribute()` query. 

```
ec2_instance_attribute(us - east - 1, Tags.Name, { 'tag:Team': ['sysops'] });
```