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zz_main.go
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zz_main.go
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/*
Copyright 2021 Upbound Inc.
*/
package main
import (
"context"
"os"
"path/filepath"
"time"
xpv1 "github.com/crossplane/crossplane-runtime/apis/common/v1"
"github.com/crossplane/crossplane-runtime/pkg/certificates"
xpcontroller "github.com/crossplane/crossplane-runtime/pkg/controller"
"github.com/crossplane/crossplane-runtime/pkg/feature"
"github.com/crossplane/crossplane-runtime/pkg/logging"
"github.com/crossplane/crossplane-runtime/pkg/ratelimiter"
"github.com/crossplane/crossplane-runtime/pkg/resource"
tjcontroller "github.com/upbound/upjet/pkg/controller"
"github.com/upbound/upjet/pkg/terraform"
"gopkg.in/alecthomas/kingpin.v2"
kerrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/tools/leaderelection/resourcelock"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/log/zap"
"github.com/upbound/provider-aws/apis"
"github.com/upbound/provider-aws/apis/v1alpha1"
"github.com/upbound/provider-aws/config"
"github.com/upbound/provider-aws/internal/clients"
"github.com/upbound/provider-aws/internal/controller"
"github.com/upbound/provider-aws/internal/features"
)
func main() {
var (
app = kingpin.New(filepath.Base(os.Args[0]), "AWS support for Crossplane.").DefaultEnvars()
debug = app.Flag("debug", "Run with debug logging.").Short('d').Bool()
syncInterval = app.Flag("sync", "Sync interval controls how often all resources will be double checked for drift.").Short('s').Default("1h").Duration()
pollInterval = app.Flag("poll", "Poll interval controls how often an individual resource should be checked for drift.").Default("10m").Duration()
leaderElection = app.Flag("leader-election", "Use leader election for the controller manager.").Short('l').Default("false").OverrideDefaultFromEnvar("LEADER_ELECTION").Bool()
maxReconcileRate = app.Flag("max-reconcile-rate", "The global maximum rate per second at which resources may be checked for drift from the desired state.").Default("10").Int()
pluginProcessTTL = app.Flag("provider-ttl", "TTL for the native plugin processes before they are replaced. Changing the default may increase memory consumption.").Default("100").Int()
namespace = app.Flag("namespace", "Namespace used to set as default scope in default secret store config.").Default("crossplane-system").Envar("POD_NAMESPACE").String()
enableExternalSecretStores = app.Flag("enable-external-secret-stores", "Enable support for ExternalSecretStores.").Default("false").Envar("ENABLE_EXTERNAL_SECRET_STORES").Bool()
essTLSCertsPath = app.Flag("ess-tls-cert-dir", "Path of ESS TLS certificates.").Envar("ESS_TLS_CERTS_DIR").String()
enableManagementPolicies = app.Flag("enable-management-policies", "Enable support for Management Policies.").Default("false").Envar("ENABLE_MANAGEMENT_POLICIES").Bool()
)
setupConfig := &clients.SetupConfig{}
setupConfig.TerraformVersion = app.Flag("terraform-version", "Terraform version.").Required().Envar("TERRAFORM_VERSION").String()
setupConfig.NativeProviderSource = app.Flag("terraform-provider-source", "Terraform provider source.").Required().Envar("TERRAFORM_PROVIDER_SOURCE").String()
setupConfig.NativeProviderVersion = app.Flag("terraform-provider-version", "Terraform provider version.").Required().Envar("TERRAFORM_PROVIDER_VERSION").String()
setupConfig.NativeProviderPath = app.Flag("terraform-native-provider-path", "Terraform native provider path for shared execution.").Default("").Envar("TERRAFORM_NATIVE_PROVIDER_PATH").String()
kingpin.MustParse(app.Parse(os.Args[1:]))
zl := zap.New(zap.UseDevMode(*debug))
log := logging.NewLogrLogger(zl.WithName("provider-aws"))
if *debug {
// The controller-runtime runs with a no-op logger by default. It is
// *very* verbose even at info level, so we only provide it a real
// logger when we're running in debug mode.
ctrl.SetLogger(zl)
}
log.Debug("Starting", "sync-interval", syncInterval.String(),
"poll-interval", pollInterval.String(), "max-reconcile-rate", *maxReconcileRate)
cfg, err := ctrl.GetConfig()
kingpin.FatalIfError(err, "Cannot get API server rest config")
mgr, err := ctrl.NewManager(ratelimiter.LimitRESTConfig(cfg, *maxReconcileRate), ctrl.Options{
LeaderElection: *leaderElection,
LeaderElectionID: "crossplane-leader-election-provider-aws-mediapackage",
SyncPeriod: syncInterval,
LeaderElectionResourceLock: resourcelock.LeasesResourceLock,
LeaseDuration: func() *time.Duration { d := 60 * time.Second; return &d }(),
RenewDeadline: func() *time.Duration { d := 50 * time.Second; return &d }(),
})
kingpin.FatalIfError(err, "Cannot create controller manager")
kingpin.FatalIfError(apis.AddToScheme(mgr.GetScheme()), "Cannot add AWS APIs to scheme")
// if the native Terraform provider plugin's path is not configured via
// the env. variable TERRAFORM_NATIVE_PROVIDER_PATH or
// the `--terraform-native-provider-path` command-line option,
// we do not use the shared gRPC server and default to the regular
// Terraform CLI behaviour (of forking a plugin process per invocation).
// This removes some complexity for setting up development environments.
setupConfig.DefaultScheduler = terraform.NewNoOpProviderScheduler()
if len(*setupConfig.NativeProviderPath) != 0 {
setupConfig.DefaultScheduler = terraform.NewSharedProviderScheduler(log, *pluginProcessTTL,
terraform.WithSharedProviderOptions(terraform.WithNativeProviderPath(*setupConfig.NativeProviderPath), terraform.WithNativeProviderName("registry.terraform.io/"+*setupConfig.NativeProviderSource)))
}
o := tjcontroller.Options{
Options: xpcontroller.Options{
Logger: log,
GlobalRateLimiter: ratelimiter.NewGlobal(*maxReconcileRate),
PollInterval: *pollInterval,
MaxConcurrentReconciles: *maxReconcileRate,
Features: &feature.Flags{},
},
Provider: config.GetProvider(),
SetupFn: clients.SelectTerraformSetup(log, setupConfig),
}
if *enableManagementPolicies {
o.Features.Enable(features.EnableAlphaManagementPolicies)
log.Info("Alpha feature enabled", "flag", features.EnableAlphaManagementPolicies)
}
o.WorkspaceStore = terraform.NewWorkspaceStore(log, terraform.WithDisableInit(len(*setupConfig.NativeProviderPath) != 0), terraform.WithProcessReportInterval(*pollInterval), terraform.WithFeatures(o.Features))
if *enableExternalSecretStores {
o.SecretStoreConfigGVK = &v1alpha1.StoreConfigGroupVersionKind
log.Info("Alpha feature enabled", "flag", features.EnableAlphaExternalSecretStores)
o.ESSOptions = &tjcontroller.ESSOptions{}
if *essTLSCertsPath != "" {
log.Info("ESS TLS certificates path is set. Loading mTLS configuration.")
tCfg, err := certificates.LoadMTLSConfig(filepath.Join(*essTLSCertsPath, "ca.crt"), filepath.Join(*essTLSCertsPath, "tls.crt"), filepath.Join(*essTLSCertsPath, "tls.key"), false)
kingpin.FatalIfError(err, "Cannot load ESS TLS config.")
o.ESSOptions.TLSConfig = tCfg
}
// Ensure default store config exists.
kingpin.FatalIfError(resource.Ignore(kerrors.IsAlreadyExists, mgr.GetClient().Create(context.Background(), &v1alpha1.StoreConfig{
TypeMeta: metav1.TypeMeta{},
ObjectMeta: metav1.ObjectMeta{
Name: "default",
},
Spec: v1alpha1.StoreConfigSpec{
// NOTE(turkenh): We only set required spec and expect optional
// ones to properly be initialized with CRD level default values.
SecretStoreConfig: xpv1.SecretStoreConfig{
DefaultScope: *namespace,
},
},
Status: v1alpha1.StoreConfigStatus{},
})), "cannot create default store config")
}
kingpin.FatalIfError(controller.Setup_mediapackage(mgr, o), "Cannot setup AWS controllers")
kingpin.FatalIfError(mgr.Start(ctrl.SetupSignalHandler()), "Cannot start controller manager")
}