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Mitsuhiro Tanda 2019-02-07 20:16:20 +09:00
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10
docs/sources/features/datasources/cloudwatch.md
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@ -214,6 +214,16 @@ Example `ec2_instance_attribute()` query
ec2_instance_attribute(us-east-1, Tags.Name, { "tag:Team": [ "sysops" ] })
```
## Using json format template variables
Some of query takes JSON format filter. Grafana support to interpolate template variable to JSON format string, it can use as filter string.
If `env = 'production', 'staging'`, following query will return ARNs of EC2 instances which `Environment` tag is `production` or `staging`.
```
resource_arns(us-east-1, ec2:instance, {"Environment":${env:json}})
```
## Cost
Amazon provides 1 million CloudWatch API requests each month at no additional charge. Past this,

1
docs/sources/reference/templating.md
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@ -50,6 +50,7 @@ Filter Option | Example | Raw | Interpolated | Description
`regex` | ${servers:regex} | `'test.', 'test2'` | <code>(test\.&#124;test2)</code> | Formats multi-value variable into a regex string
`pipe` | ${servers:pipe} | `'test.', 'test2'` | <code>test.&#124;test2</code> | Formats multi-value variable into a pipe-separated string
`csv`| ${servers:csv} | `'test1', 'test2'` | `test1,test2` | Formats multi-value variable as a comma-separated string
`json`| ${servers:json} | `'test1', 'test2'` | `["test1","test2"]` | Formats multi-value variable as a JSON string
`distributed`| ${servers:distributed} | `'test1', 'test2'` | `test1,servers=test2` | Formats multi-value variable in custom format for OpenTSDB.
`lucene`| ${servers:lucene} | `'test', 'test2'` | `("test" OR "test2")` | Formats multi-value variable as a lucene expression.
`percentencode` | ${servers:percentencode} | `'foo()bar BAZ', 'test2'` | `{foo%28%29bar%20BAZ%2Ctest2}` | Formats multi-value variable into a glob, percent-encoded.