/
main.go
151 lines (132 loc) · 5.96 KB
/
main.go
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package main
import (
"fmt"
"os"
"time"
"github.com/alecthomas/kingpin"
"k8s.io/apimachinery/pkg/runtime"
clientgoscheme "k8s.io/client-go/kubernetes/scheme"
_ "k8s.io/client-go/plugin/pkg/client/auth/gcp" // this is required to auth against GCP
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
rbacv1alpha1 "github.com/gocardless/theatre/v3/apis/rbac/v1alpha1"
workloadsv1alpha1 "github.com/gocardless/theatre/v3/apis/workloads/v1alpha1"
"github.com/gocardless/theatre/v3/cmd"
consolecontroller "github.com/gocardless/theatre/v3/controllers/workloads/console"
"github.com/gocardless/theatre/v3/pkg/signals"
"github.com/gocardless/theatre/v3/pkg/workloads/console/events"
)
var (
scheme = runtime.NewScheme()
app = kingpin.New("workloads-manager", "Manages workloads.crd.gocardless.com resources").Version(cmd.VersionStanza())
contextName = app.Flag("context-name", "Distinct name for the context this controller runs within. Usually the user-facing name of the kubernetes context for the cluster").Envar("CONTEXT_NAME").String()
pubsubProjectId = app.Flag("pubsub-project-id", "ID for the project containing the Pub/Sub topic for console event publishing").Envar("PUBSUB_PROJECT_ID").String()
pubsubTopicId = app.Flag("pubsub-topic-id", "ID of the topic to publish lifecycle event messages").Envar("PUBSUB_TOPIC_ID").String()
enableSessionRecording = app.Flag("session-recording", "Enable session recording features").Envar("ENABLE_SESSION_RECORDING").Default("false").Bool()
sessionSidecarImage = app.Flag("session-sidecar-image", "Container image to use for the session recording sidecar container").Envar("SESSION_SIDECAR_IMAGE").Default("").String()
sessionPubsubProjectId = app.Flag("session-pubsub-project-id", "ID for the project containing the Pub/Sub topic for session recording").Envar("SESSION_PUBSUB_PROJECT_ID").Default("").String()
sessionPubsubTopicId = app.Flag("session-pubsub-topic-id", "ID of the topic to publish session recording data to").Envar("SESSION_PUBSUB_TOPIC_ID").Default("").String()
commonOpts = cmd.NewCommonOptions(app).WithMetrics(app)
)
func init() {
_ = clientgoscheme.AddToScheme(scheme)
_ = workloadsv1alpha1.AddToScheme(scheme)
_ = rbacv1alpha1.AddToScheme(scheme)
}
func main() {
kingpin.MustParse(app.Parse(os.Args[1:]))
logger := commonOpts.Logger()
ctx, cancel := signals.SetupSignalHandler()
defer cancel()
// Check flag validity for session recording
if *enableSessionRecording {
if len(*sessionSidecarImage) == 0 {
app.Fatalf("Session recording sidecar image parameter must be set")
}
if len(*sessionPubsubProjectId) == 0 {
app.Fatalf("Session recording Google project ID must be set")
}
if len(*sessionPubsubTopicId) == 0 {
app.Fatalf("Session recording Google pubsub ID must be set")
}
}
// Create publisher sink for console lifecycle events
var publisher events.Publisher
var err error
if len(*pubsubProjectId) > 0 && len(*pubsubTopicId) > 0 {
publisher, err = events.NewGooglePubSubPublisher(ctx, *pubsubProjectId, *pubsubTopicId)
if err != nil {
app.Fatalf("failed to create publisher for %s/%s", *pubsubProjectId, *pubsubTopicId)
}
defer publisher.(*events.GooglePubSubPublisher).Stop()
} else { // Default to a nop publisher
publisher = events.NewNopPublisher()
}
idBuilder := workloadsv1alpha1.NewConsoleIdBuilder(*contextName)
lifecycleRecorder := workloadsv1alpha1.NewLifecycleEventRecorder(*contextName, logger, publisher, idBuilder)
mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
MetricsBindAddress: fmt.Sprintf("%s:%d", commonOpts.MetricAddress, commonOpts.MetricPort),
Port: 443,
LeaderElection: commonOpts.ManagerLeaderElection,
LeaderElectionID: "workloads.crds.gocardless.com",
Scheme: scheme,
})
if err != nil {
app.Fatalf("failed to create manager: %v", err)
}
// controller
if err = (&consolecontroller.ConsoleReconciler{
Client: mgr.GetClient(),
LifecycleRecorder: lifecycleRecorder,
ConsoleIdBuilder: idBuilder,
Log: ctrl.Log.WithName("controllers").WithName("console"),
Scheme: mgr.GetScheme(),
EnableSessionRecording: *enableSessionRecording,
SessionSidecarImage: *sessionSidecarImage,
SessionPubsubProjectId: *sessionPubsubProjectId,
SessionPubsubTopicId: *sessionPubsubTopicId,
}).SetupWithManager(ctx, mgr); err != nil {
app.Fatalf("failed to create controller: %v", err)
}
// console authenticator webhook
mgr.GetWebhookServer().Register("/mutate-consoles", &admission.Webhook{
Handler: workloadsv1alpha1.NewConsoleAuthenticatorWebhook(
lifecycleRecorder,
logger.WithName("webhooks").WithName("console-authenticator"),
),
})
// console authorisation webhook
mgr.GetWebhookServer().Register("/validate-consoleauthorisations", &admission.Webhook{
Handler: workloadsv1alpha1.NewConsoleAuthorisationWebhook(
mgr.GetClient(),
lifecycleRecorder,
logger.WithName("webhooks").WithName("console-authorisation"),
),
})
// console template webhook
mgr.GetWebhookServer().Register("/validate-consoletemplates", &admission.Webhook{
Handler: workloadsv1alpha1.NewConsoleTemplateValidationWebhook(
logger.WithName("webhooks").WithName("console-template"),
),
})
// priority webhook
mgr.GetWebhookServer().Register("/mutate-pods", &admission.Webhook{
Handler: workloadsv1alpha1.NewPriorityInjector(
mgr.GetClient(),
logger.WithName("webhooks").WithName("priority-injector"),
),
})
// console attach webhook
mgr.GetWebhookServer().Register("/observe-console-attach", &admission.Webhook{
Handler: workloadsv1alpha1.NewConsoleAttachObserverWebhook(
mgr.GetClient(),
mgr.GetEventRecorderFor("console-attach-observer"),
lifecycleRecorder,
logger.WithName("webhooks").WithName("console-attach-observer"),
10*time.Second,
),
})
if err := mgr.Start(ctx.Done()); err != nil {
app.Fatalf("failed to run manager: %v", err)
}
}