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advanced_http.proto

Package: `envoy.config.health_checker.advanced_http.v2`

Types:

AdvancedHttp
ResponseAssertions
ResponseMatcher
ResponseMatch
JsonKey
PathSegment

Enums:

- [HealthCheckResult](#healthcheckresult)

Source File: github.com/solo-io/gloo/projects/gloo/api/external/envoy/extensions/advanced_http/advanced_http.proto

AdvancedHttp

Same as envoy’s default HTTP health checker, but with some additions:

allows a custom path and method on the health check request per endpoint. The http path to use can be overridden using endpoint metadata. The endpoint-specific path should be in the “io.solo.health_checkers.advanced_http” namespace, under a string value named “path”. The same can be done for the method by setting a string value named “method”.
allows for health check responses to leverage the response body rather than just the http status code returned. The response body can be parsed as json and complex assertions can be made on fields parsed from the json or plaintext response body.

"httpHealthCheck": .solo.io.envoy.config.core.v3.HealthCheck.HttpHealthCheck
"responseAssertions": .envoy.config.health_checker.advanced_http.v2.ResponseAssertions

Field	Type	Description
`httpHealthCheck`	.solo.io.envoy.config.core.v3.HealthCheck.HttpHealthCheck	Http health check.
`responseAssertions`	.envoy.config.health_checker.advanced_http.v2.ResponseAssertions	If defined, the response health check rules take precedence over the http status settings defined in `http_health_check`.

ResponseAssertions

"responseMatchers": []envoy.config.health_checker.advanced_http.v2.ResponseMatcher
"noMatchHealth": .envoy.config.health_checker.advanced_http.v2.HealthCheckResult

Field	Type	Description
`responseMatchers`	[]envoy.config.health_checker.advanced_http.v2.ResponseMatcher	A bunch of match rules, the first match wins out and short-circuits.
`noMatchHealth`	.envoy.config.health_checker.advanced_http.v2.HealthCheckResult	The default health response if none of the response health checks were matches. If omitted, defaults to healthy. Note for devs: we’d probably prefer this default to unhealthy, but since the version of protoc we’re on doesn’t support optional scalars without an experimental flag, we cannot have the `no_match_health` field default to unhealthy while the `match_health` field defaults to healthy. As such, we offload this defaulting behavior to the control plane. For more reading, see https://github.com/protocolbuffers/protobuf/issues/1606#issuecomment-618687169.

ResponseMatcher

Defines a transformation template.

"responseMatch": .envoy.config.health_checker.advanced_http.v2.ResponseMatch
"matchHealth": .envoy.config.health_checker.advanced_http.v2.HealthCheckResult

Field	Type	Description
`responseMatch`	.envoy.config.health_checker.advanced_http.v2.ResponseMatch	Defines the parameters to determine a single match.
`matchHealth`	.envoy.config.health_checker.advanced_http.v2.HealthCheckResult	The health response if this response_match is a match. If omitted, defaults to healthy.

ResponseMatch

ResponseMatches can be used to extract information from the request/response.

"jsonKey": .envoy.config.health_checker.advanced_http.v2.JsonKey
"ignoreErrorOnParse": bool
"header": string
"body": .google.protobuf.Empty
"regex": string

Field	Type	Description
`jsonKey`	.envoy.config.health_checker.advanced_http.v2.JsonKey	Configuration to get the json key. Treats the body as raw text if omitted.
`ignoreErrorOnParse`	`bool`	If set to true, Envoy will not throw an exception in case the json body parsing fails.
`header`	`string`	Extract information from headers. Only one of `header` or `body` can be set.
`body`	.google.protobuf.Empty	Extract information from the request/response body. Only one of `body` or `header` can be set.
`regex`	`string`	Only strings matching this regular expression will be considered a match. The most simple value for this field is ‘.*’, which matches the whole source. The field is required.

JsonKey

"path": []envoy.config.health_checker.advanced_http.v2.JsonKey.PathSegment

Field	Type	Description
`path`	[]envoy.config.health_checker.advanced_http.v2.JsonKey.PathSegment	The path to retrieve the Value.

PathSegment

Specifies the segment in a path to retrieve value.

"key": string

Field	Type	Description
`key`	`string`	If specified, use the key to retrieve the value. If the key is not found, the value defaults to empty string.

HealthCheckResult

Description:

Name	Description
healthy
degraded
unhealthy