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Merge pull request #110 from seaweedfs/feature/original-kubebuilder-s…
…tructure Update structure closer to original one, bump golang
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| # More info: https://docs.docker.com/engine/reference/builder/#dockerignore-file | ||
| # Ignore build and test binaries. | ||
| bin/ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,157 @@ | ||
| /* | ||
| Copyright 2024. | ||
| 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 ( | ||
| "crypto/tls" | ||
| "flag" | ||
| "os" | ||
|
|
||
| // Import all Kubernetes client auth plugins (e.g. Azure, GCP, OIDC, etc.) | ||
| // to ensure that exec-entrypoint and run can make use of them. | ||
| _ "k8s.io/client-go/plugin/pkg/client/auth" | ||
|
|
||
| "k8s.io/apimachinery/pkg/runtime" | ||
| utilruntime "k8s.io/apimachinery/pkg/util/runtime" | ||
| clientgoscheme "k8s.io/client-go/kubernetes/scheme" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/healthz" | ||
| "sigs.k8s.io/controller-runtime/pkg/log/zap" | ||
| metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server" | ||
| "sigs.k8s.io/controller-runtime/pkg/webhook" | ||
|
|
||
| seaweedv1 "github.com/seaweedfs/seaweedfs-operator/api/v1" | ||
| "github.com/seaweedfs/seaweedfs-operator/internal/controller" | ||
| // +kubebuilder:scaffold:imports | ||
| ) | ||
|
|
||
| var ( | ||
| scheme = runtime.NewScheme() | ||
| setupLog = ctrl.Log.WithName("setup") | ||
| ) | ||
|
|
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| func init() { | ||
| utilruntime.Must(clientgoscheme.AddToScheme(scheme)) | ||
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| utilruntime.Must(seaweedv1.AddToScheme(scheme)) | ||
| // +kubebuilder:scaffold:scheme | ||
| } | ||
|
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| func main() { | ||
| var metricsAddr string | ||
| var enableLeaderElection bool | ||
| var probeAddr string | ||
| var secureMetrics bool | ||
| var enableHTTP2 bool | ||
| flag.StringVar(&metricsAddr, "metrics-bind-address", "0", "The address the metric endpoint binds to. "+ | ||
| "Use the port :8080. If not set, it will be 0 in order to disable the metrics server") | ||
| flag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "The address the probe endpoint binds to.") | ||
| flag.BoolVar(&enableLeaderElection, "leader-elect", false, | ||
| "Enable leader election for controller manager. "+ | ||
| "Enabling this will ensure there is only one active controller manager.") | ||
| flag.BoolVar(&secureMetrics, "metrics-secure", false, | ||
| "If set the metrics endpoint is served securely") | ||
| flag.BoolVar(&enableHTTP2, "enable-http2", false, | ||
| "If set, HTTP/2 will be enabled for the metrics and webhook servers") | ||
| opts := zap.Options{ | ||
| Development: true, | ||
| } | ||
| opts.BindFlags(flag.CommandLine) | ||
| flag.Parse() | ||
|
|
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| ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts))) | ||
|
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| // if the enable-http2 flag is false (the default), http/2 should be disabled | ||
| // due to its vulnerabilities. More specifically, disabling http/2 will | ||
| // prevent from being vulnerable to the HTTP/2 Stream Cancellation and | ||
| // Rapid Reset CVEs. For more information see: | ||
| // - https://github.com/advisories/GHSA-qppj-fm5r-hxr3 | ||
| // - https://github.com/advisories/GHSA-4374-p667-p6c8 | ||
| disableHTTP2 := func(c *tls.Config) { | ||
| setupLog.Info("disabling http/2") | ||
| c.NextProtos = []string{"http/1.1"} | ||
| } | ||
|
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| tlsOpts := []func(*tls.Config){} | ||
| if !enableHTTP2 { | ||
| tlsOpts = append(tlsOpts, disableHTTP2) | ||
| } | ||
|
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| webhookServer := webhook.NewServer(webhook.Options{ | ||
| TLSOpts: tlsOpts, | ||
| }) | ||
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| mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{ | ||
| Scheme: scheme, | ||
| Metrics: metricsserver.Options{ | ||
| BindAddress: metricsAddr, | ||
| SecureServing: secureMetrics, | ||
| TLSOpts: tlsOpts, | ||
| }, | ||
| WebhookServer: webhookServer, | ||
| HealthProbeBindAddress: probeAddr, | ||
| LeaderElection: enableLeaderElection, | ||
| LeaderElectionID: "674006ec.seaweedfs.com", | ||
| // LeaderElectionReleaseOnCancel defines if the leader should step down voluntarily | ||
| // when the Manager ends. This requires the binary to immediately end when the | ||
| // Manager is stopped, otherwise, this setting is unsafe. Setting this significantly | ||
| // speeds up voluntary leader transitions as the new leader don't have to wait | ||
| // LeaseDuration time first. | ||
| // | ||
| // In the default scaffold provided, the program ends immediately after | ||
| // the manager stops, so would be fine to enable this option. However, | ||
| // if you are doing or is intended to do any operation such as perform cleanups | ||
| // after the manager stops then its usage might be unsafe. | ||
| // LeaderElectionReleaseOnCancel: true, | ||
| }) | ||
| if err != nil { | ||
| setupLog.Error(err, "unable to start manager") | ||
| os.Exit(1) | ||
| } | ||
|
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| if err = (&controller.SeaweedReconciler{ | ||
| Client: mgr.GetClient(), | ||
| Log: ctrl.Log.WithName("controller").WithName("Seaweed"), | ||
| Scheme: mgr.GetScheme(), | ||
| }).SetupWithManager(mgr); err != nil { | ||
| setupLog.Error(err, "unable to create controller", "controller", "Seaweed") | ||
| os.Exit(1) | ||
| } | ||
|
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| if os.Getenv("ENABLE_WEBHOOKS") != "false" { | ||
| if err = (&seaweedv1.Seaweed{}).SetupWebhookWithManager(mgr); err != nil { | ||
| setupLog.Error(err, "unable to create webhook", "webhook", "Seaweed") | ||
| os.Exit(1) | ||
| } | ||
| } | ||
| // +kubebuilder:scaffold:builder | ||
|
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| if err := mgr.AddHealthzCheck("healthz", healthz.Ping); err != nil { | ||
| setupLog.Error(err, "unable to set up health check") | ||
| os.Exit(1) | ||
| } | ||
| if err := mgr.AddReadyzCheck("readyz", healthz.Ping); err != nil { | ||
| setupLog.Error(err, "unable to set up ready check") | ||
| os.Exit(1) | ||
| } | ||
|
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| setupLog.Info("starting manager") | ||
| if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil { | ||
| setupLog.Error(err, "problem running manager") | ||
| os.Exit(1) | ||
| } | ||
| } |
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