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* Refactor gateway package * fix lint errors --------- Co-authored-by: varungupta <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| /* | ||
| Copyright 2024 The Aibrix Team. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "flag" | ||
| "fmt" | ||
| "log" | ||
| "net" | ||
| "os" | ||
| "os/signal" | ||
| "syscall" | ||
| "time" | ||
|
|
||
| "github.com/aibrix/aibrix/pkg/plugins/gateway" | ||
| ratelimiter "github.com/aibrix/aibrix/pkg/plugins/gateway/rate_limiter" | ||
| redis "github.com/redis/go-redis/v9" | ||
| "google.golang.org/grpc" | ||
| "k8s.io/client-go/kubernetes" | ||
| "k8s.io/client-go/rest" | ||
| "k8s.io/client-go/tools/clientcmd" | ||
|
|
||
| extProcPb "github.com/envoyproxy/go-control-plane/envoy/service/ext_proc/v3" | ||
| healthPb "google.golang.org/grpc/health/grpc_health_v1" | ||
| ) | ||
|
|
||
| // Create Redis Client | ||
| var ( | ||
| grpc_port int | ||
| redis_host = getEnv("REDIS_HOST", "localhost") | ||
| redis_port = getEnv("REDIS_PORT", "6379") | ||
| ) | ||
|
|
||
| func getEnv(key, defaultValue string) string { | ||
| value := os.Getenv(key) | ||
| if value == "" { | ||
| return defaultValue | ||
| } | ||
| return value | ||
| } | ||
|
|
||
| //+kubebuilder:rbac:groups=core,resources=pods,verbs=get;list;watch;create;update;patch;delete | ||
|
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| func createClient(kubeconfigPath string) (kubernetes.Interface, error) { | ||
| var kubeconfig *rest.Config | ||
|
|
||
| if kubeconfigPath != "" { | ||
| config, err := clientcmd.BuildConfigFromFlags("", kubeconfigPath) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("unable to load kubeconfig from %s: %v", kubeconfigPath, err) | ||
| } | ||
| kubeconfig = config | ||
| } else { | ||
| config, err := rest.InClusterConfig() | ||
| if err != nil { | ||
| return nil, fmt.Errorf("unable to load in-cluster config: %v", err) | ||
| } | ||
| kubeconfig = config | ||
| } | ||
|
|
||
| client, err := kubernetes.NewForConfig(kubeconfig) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("unable to create a client: %v", err) | ||
| } | ||
|
|
||
| return client, nil | ||
| } | ||
|
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| // TODO (varun): one or multi plugin ext_proc | ||
| func main() { | ||
| kubeconfig := flag.String("kubeconfig", "", "absolute path to the kubeconfig file") | ||
| flag.IntVar(&grpc_port, "port", 50052, "gRPC port") | ||
| flag.Parse() | ||
|
|
||
| // Connect to Redis | ||
| client := redis.NewClient(&redis.Options{ | ||
| Addr: redis_host + ":" + redis_port, | ||
| DB: 0, // Default DB | ||
| }) | ||
| pong, err := client.Ping(context.Background()).Result() | ||
| if err != nil { | ||
| log.Fatal("Error connecting to Redis:", err) | ||
| } | ||
| fmt.Println("Connected to Redis:", pong) | ||
|
|
||
| // Connect to K8s cluster | ||
| k8sClient, err := createClient(*kubeconfig) | ||
| if err != nil { | ||
| log.Fatal("Error creating kubernetes client:", err) | ||
| } | ||
|
|
||
| // grpc server init | ||
| lis, err := net.Listen("tcp", fmt.Sprintf(":%d", grpc_port)) | ||
| if err != nil { | ||
| log.Fatalf("failed to listen: %v", err) | ||
| } | ||
|
|
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| s := grpc.NewServer() | ||
|
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| extProcPb.RegisterExternalProcessorServer(s, gateway.NewServer( | ||
| ratelimiter.NewRedisAccountRateLimiter("aibrix", client, 1*time.Minute), | ||
| k8sClient, | ||
| )) | ||
| healthPb.RegisterHealthServer(s, &gateway.HealthServer{}) | ||
|
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| log.Println("Starting gRPC server on port :50052") | ||
|
|
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| // shutdown | ||
| var gracefulStop = make(chan os.Signal, 1) | ||
| signal.Notify(gracefulStop, syscall.SIGTERM) | ||
| signal.Notify(gracefulStop, syscall.SIGINT) | ||
| go func() { | ||
| sig := <-gracefulStop | ||
| log.Printf("caught sig: %+v", sig) | ||
| log.Println("Wait for 1 second to finish processing") | ||
| time.Sleep(1 * time.Second) | ||
| os.Exit(0) | ||
| }() | ||
|
|
||
| if err := s.Serve(lis); err != nil { | ||
| panic(err) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| ## Multistage build | ||
| FROM golang:1.22 as builder | ||
| ARG TARGETOS | ||
| ARG TARGETARCH | ||
|
|
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| WORKDIR /workspace | ||
| # Copy the Go Modules manifests | ||
| COPY go.mod go.mod | ||
| COPY go.sum go.sum | ||
| # cache deps before building and copying source so that we don't need to re-download as much | ||
| # and so that source changes don't invalidate our downloaded layer | ||
| RUN go mod download | ||
|
|
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| # Copy the go source | ||
| COPY cmd/plugins/main.go cmd/main.go | ||
| COPY api/ api/ | ||
| COPY pkg/plugins/ pkg/plugins/ | ||
| COPY pkg/utils/ pkg/utils/ | ||
|
|
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| # Build | ||
| # the GOARCH has not a default value to allow the binary be built according to the host where the command | ||
| # was called. For example, if we call make docker-build in a local env which has the Apple Silicon M1 SO | ||
| # the docker BUILDPLATFORM arg will be linux/arm64 when for Apple x86 it will be linux/amd64. Therefore, | ||
| # by leaving it empty we can ensure that the container and binary shipped on it will have the same platform. | ||
| RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -o plugins cmd/main.go | ||
|
|
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| # Use distroless as minimal base image to package the manager binary | ||
| # Refer to https://github.com/GoogleContainerTools/distroless for more details | ||
| FROM gcr.io/distroless/static:nonroot | ||
| WORKDIR / | ||
| COPY --from=builder /workspace/plugins . | ||
| USER 65532:65532 | ||
|
|
||
| ENTRYPOINT ["/plugins"] |
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