流量治理的原理 —— VirutalService —— L4MatchAttributes
https://istio.io/latest/docs/reference/config/networking/virtual-service/#L4MatchAttributes
L4 connection match attributes. Note that L4 connection matching support is incomplete.
L4连接匹配属性。请注意，L4连接匹配支持不完整。
| Field | Type | Description | Required |
|---|---|---|---|
| destinationSubnets | string[] |
IPv4 or IPv6 ip addresses of destination with optional subnet. E.g., a.b.c.d/xx form or just a.b.c.d. |
No |
| port | uint32 |
Specifies the port on the host that is being addressed. Many services only expose a single port or label ports with the protocols they support, in these cases it is not required to explicitly select the port. |
No |
| sourceLabels | map<string, string> |
One or more labels that constrain the applicability of a rule to workloads with the given labels. If the VirtualService has a list of gateways specified in the top-level gateways field, it should include the reserved gateway mesh in order for this field to be applicable. |
No |
| gateways | string[] |
Names of gateways where the rule should be applied. Gateway names in the top-level gateways field of the VirtualService (if any) are overridden. The gateway match is independent of sourceLabels. |
No |
| sourceNamespace | string |
Source namespace constraining the applicability of a rule to workloads in that namespace. If the VirtualService has a list of gateways specified in the top-level gateways field, it must include the reserved gateway mesh for this field to be applicable. |
No |
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