fix: honor --lets-encrypt=disabled and reduce certs logging

pkg/controller/tls/certs.go

@@ -6,6 +6,7 @@ import (
 	"strings"
 
 	v1 "github.com/acorn-io/acorn/pkg/apis/internal.acorn.io/v1"
+	"github.com/acorn-io/acorn/pkg/config"
 	"github.com/acorn-io/acorn/pkg/labels"
 	"github.com/acorn-io/acorn/pkg/system"
 	"github.com/acorn-io/baaah/pkg/router"
@@ -20,7 +21,7 @@ import (
 
 // ProvisionWildcardCert provisions a Let's Encrypt wildcard certificate for *.<domain>.on-acorn.io
 func ProvisionWildcardCert(req router.Request, domain, token string) error {
-	logrus.Infof("Provisioning wildcard cert for %v", domain)
+	logrus.Debugf("Provisioning wildcard cert for %v", domain)
 	// Ensure that we have a Let's Encrypt account ready
 	leUser, err := ensureLEUser(req.Ctx, req.Client)
 	if err != nil {
@@ -51,16 +52,14 @@ func RequireSecretTypeTLS(h router.Handler) router.Handler {
 func RenewCert(req router.Request, resp router.Response) error {
 	sec := req.Object.(*corev1.Secret)
 
-	logrus.Infof("Renewing certificate for %v", sec.Name)
-
 	leUser, err := ensureLEUser(req.Ctx, req.Client)
 	if err != nil {
 		return err
 	}
 
 	// Early exit if existing cert is still valid
 	if !leUser.mustRenew(sec) {
-		logrus.Infof("Certificate for %v is still valid", sec.Name)
+		logrus.Debugf("Certificate for %v is still valid", sec.Name)
 		return nil
 	}
 
@@ -70,7 +69,7 @@ func RenewCert(req router.Request, resp router.Response) error {
 
 		// Do not start a new challenge if we already have one in progress
 		if !lockDomain(domain) {
-			logrus.Infof("not starting certificate renewal: %v: %s", ErrCertificateRequestInProgress, domain)
+			logrus.Debugf("not starting certificate renewal: %v: %s", ErrCertificateRequestInProgress, domain)
 			return
 		}
 		defer unlockDomain(domain)
@@ -109,6 +108,18 @@ func RenewCert(req router.Request, resp router.Response) error {
 // Note: this does not actually provision the certificates, it just creates the empty secret
 // which is picked up by the route handled by RenewCert above
 func ProvisionCerts(req router.Request, resp router.Response) error {
+
+	cfg, err := config.Get(req.Ctx, req.Client)
+	if err != nil {
+		return err
+	}
+
+	// Early exit if Let's Encrypt is not enabled
+	// Just to be on the safe side, we check for all possible allowed configuration values
+	if strings.EqualFold(*cfg.LetsEncrypt, "disabled") {
+		return nil
+	}
+
 	appInstance := req.Object.(*v1.AppInstance)
 
 	appInstanceIDSegment := strings.SplitN(string(appInstance.GetUID()), "-", 2)[0]
@@ -150,7 +161,7 @@ func (u *LEUser) provisionCertIfNotExists(ctx context.Context, client kclient.Cl
 	go func() {
 		// Do not start a new challenge if we already have one in progress
 		if !lockDomain(domain) {
-			logrus.Infof("not starting certificate renewal: %v: %s", ErrCertificateRequestInProgress, domain)
+			logrus.Debugf("not starting certificate renewal: %v: %s", ErrCertificateRequestInProgress, domain)
 			return
 		}
 		defer unlockDomain(domain)

pkg/controller/tls/letsencrypt.go

@@ -122,8 +122,6 @@ func (u *LEUser) register() error {
 	}
 	u.registration = reg
 
-	logrus.Infof("registered LE User: %s", u.email)
-
 	return nil
 
 }
@@ -268,7 +266,7 @@ func ensureLEUser(ctx context.Context, client kclient.Client) (*LEUser, error) {
 		return nil, fmt.Errorf("problem creating Let's Encrypt User secret: %w", err)
 	}
 
-	logrus.Infoln("Registered Let's Encrypt User")
+	logrus.Infof("Registered Let's Encrypt User: %s", newLEUser.email)
 
 	return newLEUser, nil
 
@@ -321,7 +319,7 @@ func lockDomain(domain string) bool {
 	CertificatesRequestLock.Lock()
 	if _, ok := CertificateRequests[domain]; ok {
 		CertificatesRequestLock.Unlock()
-		logrus.Infof("certificate for domain %s is already being requested, waiting for it to be ready", domain)
+		logrus.Debugf("certificate for domain %s is already being requested, waiting for it to be ready", domain)
 		return false
 	}
 
@@ -358,7 +356,7 @@ func stillValid(cert []byte) bool {
 		timeToExpire := x509crt.NotAfter.Sub(time.Now().UTC())
 		if timeToExpire > 7*24*time.Hour {
 			// (b) cert is still valid for more than 7 days -> good to go
-			logrus.Infof("certificate for %s is still valid until %s (%d hours)", x509crt.Subject.CommonName, x509crt.NotAfter, int(timeToExpire.Hours()))
+			logrus.Debugf("certificate for %s is still valid until %s (%d hours)", x509crt.Subject.CommonName, x509crt.NotAfter, int(timeToExpire.Hours()))
 			return true
 		} else {
 			// (c) cert is expired -> renew