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Add `add` to expression reference. (#1902)

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Pengyuan Bian 2018-07-20 16:10:35 -07:00 committed by istio-bot
parent c9f8715bee
commit 98281c123f
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content/docs/reference/config/policy-and-telemetry/expression-language/index.md
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@ -28,6 +28,7 @@ CEXL supports the following functions.
|<code>&#124;&#124;</code> |Logical OR | `(request.size == 200)` <code>&#124;&#124;</code> `(request.auth.principal == "admin")`
|`&&` |Logical AND | `(request.size == 200) && (request.auth.principal == "admin")`
|`[ ]` |Map Access | `request.headers["x-id"]`
|`+` |Add | `request.host + request.path`
|<code>&#124;</code> |First non empty | `source.labels["app"]` <code>&#124;</code> `source.labels["svc"]` <code>&#124;</code> `"unknown"`
|`match` | Glob match |`match(destination.service, "*.ns1.svc.cluster.local")` | Matches prefix or suffix based on the location of `*`
|`email` | Convert a textual e-mail into the `EMAIL_ADDRESS` type | `email("awesome@istio.io")` | Use the `email` function to create an `EMAIL_ADDRESS` literal.