Backport of Add support for configuring Envoys route idle_timeout into release/1.14.x

[hc-github-team-consul-core]

Backport

This PR is auto-generated from #14340 to be assessed for backporting due to the inclusion of the label backport/1.14.

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The below text is copied from the body of the original PR.

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Description

This PR adds support for configuring the Envoy route level idle_timeout for service-routers and local_app. For our teams scenario, this will let us extend the timeout for long-running gRPC services so that Envoy doesn't terminate the connection prematurely.

For service-routers a IdleTimeout parameter has been added, and for local_app a proxy config local_idle_timeout_ms parameter was created. I followed the RequestTimeout and local_request_timeout_ms definitions closely.

Testing & Reproduction steps

Manual Testing Steps

service-router IdleTimeout

Created a service-router and configured the IdleTimeout to 60s

Kind = "service-router"
Name = "waitserver"
Routes = [
  {
    Destination {
      Service = ""
      RequestTimeout = "60m"
      IdleTimeout = "60s"
    }
  }
]

Dumped the Envoy config and verified that the idle_timeout configuration parameter was set

<snip>
        "name": "waitserver",
        "domains": [
         "*"
        ],
        "routes": [
         {
          "match": {
           "prefix": "/"
          },
          "route": {
           "cluster": "waitserver.default.dc1.internal.ba4be18f-a3c7-7e2f-eff4-a25a8a1fce57.consul",
           "timeout": "3600s",
           "idle_timeout": "60s"
          }
         },
<snip>

local_idle_timeout_ms

Configure local_idle_timeout_ms on a service proxy.config

service {
  name = "waitserver"
  id = "waitserver"
  address = "10.5.0.20"
  port = 9222

  connect {
    sidecar_service {
      port = 10201

      proxy {
        config {
          local_request_timeout_ms = 0
          local_idle_timeout_ms = 0
        }
      }
      check {
        name = "Connect Envoy Sidecar"
        tcp = "10.5.0.20:10201"
        interval ="10s"
      }
    }
  }
}

Dumped the Envoy config and verified that the idle_timeout configuration parameter was set on the public_listener route for local_app

{
     "route_config": {
      "@type": "type.googleapis.com/envoy.config.route.v3.RouteConfiguration",
      "name": "public_listener",
      "virtual_hosts": [
       {
        "name": "public_listener",
        "domains": [
         "*"
        ],
        "routes": [
         {
          "match": {
           "prefix": "/"
          },
          "route": {
           "cluster": "local_app",
           "timeout": "0s",
           "idle_timeout": "0s"
          }
         }
        ]
       }
      ]
     },

Links

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PR Checklist

• updated test coverage
• external facing docs updated
• not a security concern

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Overview of commits

• 794df09 - 5b35a2e - b6c6c0e - ed05801 - b218c99 - 137373c - 8592e23 - af6a012 - 7fb0fb9 - 9e4d33b - ff4a3ea - e5cc5ea - 077685d - c63dd09 - 1e48f24 - b0676ab - 6d6b804 - 19a2fb2 - 20836ac - 7d40e16 - 881fc86 - 4a644c0 - e078ad2 - e4f2124 - e8948b4 - 8579c6f

[hashicorp-cla]

All committers have signed the CLA.

[github-team-consul-core-pr-approver]

Auto approved Consul Bot automated PR