Add InsecureSkipVerify to TLS configuration

Added a new InsecureSkipVerify configuration option in core/server_config.go and applied it in pki/pki.go. This feature allows users to skip the verification of a server's SSL certificate, useful in testing environments or with self-signed certificates. It should not be used in production environments as it opens potential security risks.

core/server_config.go

@@ -85,6 +85,7 @@ type TLSConfig struct {
 	CertKeyFile          string `koanf:"certkeyfile"`
 	TrustStoreFile       string `koanf:"truststorefile"`
 	legacyTLS            *NetworkTLSConfig
+	InsecureSkipVerify   bool `koanf:"insecureskipverify"`
 }
 
 // Enabled returns whether TLS should be enabled, according to the global config.

pki/pki.go

@@ -94,6 +94,7 @@ func (p *PKI) CreateTLSConfig(cfg core.TLSConfig) (*tls.Config, error) {
 		return nil, err
 	}
 	_ = p.SetVerifyPeerCertificateFunc(tlsConfig) // no error can occur
+	tlsConfig.InsecureSkipVerify = cfg.InsecureSkipVerify
 	return tlsConfig, nil
 }