Header based routing does not work when removing the header at the ned of the rollout

[AlonGluz]

Header based routing does not work when removing the header at the end of the rollout

Plugin version: https://github.com/argoproj-labs/rollouts-plugin-trafficrouter-gatewayapi/releases/download/v0.2.0/gateway-api-plugin-linux-arm64

Error:

2024-11-07T14:54:07.053Z [DEBUG] plugin.gatewayAPI: time="2024-11-07T14:54:07Z" level=info msg="[SetHeaderRoute] plugin \"argoproj-labs/gatewayAPI\" controls HTTPRoutes: [reporting-v2-web-route]
" plugin=trafficrouter                                                                                                                                                                            2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI: panic: runtime error: slice bounds out of range [2:1]                                                                                         2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI:
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI: goroutine 52 [running]:                                                                                                                       2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI: github.com/argoproj-labs/rollouts-plugin-trafficrouter-gatewayapi/internal/utils.RemoveIndex[...](...)                                        2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI:     /home/runner/work/rollouts-plugin-trafficrouter-gatewayapi/rollouts-plugin-trafficrouter-gatewayapi/internal/utils/common.go:99
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI: github.com/argoproj-labs/rollouts-plugin-trafficrouter-gatewayapi/pkg/plugin.removeManagedRouteEntry(0x19bd2e0?, {0xc0001ac360?, 0x1, 0x4}, {0xc0001dbc90, 0x10}, {0xc0006a0c30, 0x16})                                                                                                                                                         2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI:     /home/runner/work/rollouts-plugin-trafficrouter-gatewayapi/rollouts-plugin-trafficrouter-gatewayapi/pkg/plugin/plugin.go:239 +0x4c6
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI: github.com/argoproj-labs/rollouts-plugin-trafficrouter-gatewayapi/pkg/plugin.(*RpcPlugin).removeHTTPManagedRoutes(0xc000580ae0, {0xc0005413e8, 0x1, 0xc000007380?}, 0xc0006e2120)                                                                                                                                                               2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI:     /home/runner/work/rollouts-plugin-trafficrouter-gatewayapi/rollouts-plugin-trafficrouter-gatewayapi/pkg/plugin/httproute.go:291 +0x4a8
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI: github.com/argoproj-labs/rollouts-plugin-trafficrouter-gatewayapi/pkg/plugin.(*RpcPlugin).setHTTPHeaderRoute(0x0?, 0x1000100?, 0x0?, 0xffffffffffffffff?)                                                                                                                                                                                       2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI:     /home/runner/work/rollouts-plugin-trafficrouter-gatewayapi/rollouts-plugin-trafficrouter-gatewayapi/pkg/plugin/httproute.go:68 +0x49c
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI: github.com/argoproj-labs/rollouts-plugin-trafficrouter-gatewayapi/pkg/plugin.(*RpcPlugin).SetHeaderRoute.func1({{0xc0006a0c30?, 0xc000466540?}
, 0x4?})
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI:     /home/runner/work/rollouts-plugin-trafficrouter-gatewayapi/rollouts-plugin-trafficrouter-gatewayapi/pkg/plugin/plugin.go:95 +0x53
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI: github.com/argoproj-labs/rollouts-plugin-trafficrouter-gatewayapi/pkg/plugin.forEachGatewayAPIRoute[...]({0xc0006b3140?, 0x1?, 0x2}, 0xc000541
6f0?)
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI:     /home/runner/work/rollouts-plugin-trafficrouter-gatewayapi/rollouts-plugin-trafficrouter-gatewayapi/pkg/plugin/plugin.go:250 +0x68
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI: github.com/argoproj-labs/rollouts-plugin-trafficrouter-gatewayapi/pkg/plugin.(*RpcPlugin).SetHeaderRoute(0xc000580ae0, 0xc0004ba300, 0xc0004ba
8f8)
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI:     /home/runner/work/rollouts-plugin-trafficrouter-gatewayapi/rollouts-plugin-trafficrouter-gatewayapi/pkg/plugin/plugin.go:90 +0x1bc
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI: github.com/argoproj/argo-rollouts/rollout/trafficrouting/plugin/rpc.(*TrafficRouterRPCServer).SetHeaderRoute(0x2?, {0x1851a00?, 0xc0004ba300?}
, 0xc000615fe0)
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI:     /home/runner/go/pkg/mod/github.com/argoproj/[email protected]/rollout/trafficrouting/plugin/rpc/rpc.go:214 +0x4f
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI: reflect.Value.call({0xc0006b27e0?, 0xc000378728?, 0x13?}, {0x1beac98, 0x4}, {0xc00069fef8, 0x3, 0x3?})
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI:     /opt/hostedtoolcache/go/1.20.14/x64/src/reflect/value.go:586 +0xb07
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI: reflect.Value.Call({0xc0006b27e0?, 0xc000378728?, 0x1e88ac0?}, {0xc00011cef8?, 0x18ca620?, 0x2b70b88?})
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI:     /opt/hostedtoolcache/go/1.20.14/x64/src/reflect/value.go:370 +0xbc
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI: net/rpc.(*service).call(0xc0001df6c0, 0x0?, 0xc0006a0090?, 0xc0004be3e0, 0xc000123880, 0x0?, {0x1952180?, 0xc0004cb170?, 0x0?}, {0x19aa120, ..
.}, ...)
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI:     /opt/hostedtoolcache/go/1.20.14/x64/src/net/rpc/server.go:382 +0x226
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI: created by net/rpc.(*Server).ServeCodec
2024-11-07T14:54:07.077Z [DEBUG] plugin.gatewayAPI:     /opt/hostedtoolcache/go/1.20.14/x64/src/net/rpc/server.go:479 +0x3fe
time="2024-11-07T14:54:07Z" level=error msg="roCtx.reconcile err failed to set header route via plugin: SetHeaderRoute rpc call error: unexpected EOF" generation=49 namespace=frontegg resourceVe
rsion=246045802 rollout=reporting-v2-web
time="2024-11-07T14:54:07Z" level=info msg="Reconciliation completed" generation=49 namespace=frontegg resourceVersion=246045802 rollout=reporting-v2-web time_ms=97.274702
time="2024-11-07T14:54:07Z" level=error msg="rollout syncHandler error: failed to set header route via plugin: SetHeaderRoute rpc call error: unexpected EOF" namespace=frontegg rollout=reporting
-v2-web
time="2024-11-07T14:54:07Z" level=info msg="rollout syncHandler queue retries: 62 : key \"frontegg/reporting-v2-web\"" namespace=frontegg rollout=reporting-v2-web
2024-11-07T14:54:07.081Z [ERROR] plugin: plugin process exited: plugin=/home/argo-rollouts/plugin-bin/argoproj-labs/gatewayAPI id=3145 error="exit status 2"
time="2024-11-07T14:54:07Z" level=error msg="failed to set header route via plugin: SetHeaderRoute rpc call error: unexpected EOF" error="<nil>"

When trying to unset the header in the rollout steps the rollout hangs and fails with the following error.

Argo rollout version: quay.io/argoproj/argo-rollouts:v1.7.2

[kostis-codefresh]

Could you please post

1. The Rollout YAML
2. The name and version of your traffic provider?
3. What version of the Gateway API, your traffic provider implements?