kubernetes/cmd/kubeadm/app/phases/certs/renewal/readwriter.go

type certificateReadWriter …

type pkiCertificateReadWriter …

// newPKICertificateReadWriter return a new pkiCertificateReadWriter
func newPKICertificateReadWriter(certificateDir string, baseName string) *pkiCertificateReadWriter { … }

// Exists checks if a certificate exist
func (rw *pkiCertificateReadWriter) Exists() (bool, error) { … }

func fileExists(filename string) (bool, error) { … }

// Read a certificate from a file the K8s pki managed by kubeadm
func (rw *pkiCertificateReadWriter) Read() (*x509.Certificate, error) { … }

// Write a certificate to files in the K8s pki managed by kubeadm
func (rw *pkiCertificateReadWriter) Write(newCert *x509.Certificate, newKey crypto.Signer) error { … }

type kubeConfigReadWriter …

// newKubeconfigReadWriter return a new kubeConfigReadWriter
func newKubeconfigReadWriter(kubernetesDir string, kubeConfigFileName string, certificateDir, baseName string) *kubeConfigReadWriter { … }

// Exists checks if a certificate embedded in kubeConfig file exists
func (rw *kubeConfigReadWriter) Exists() (bool, error) { … }

// Read a certificate embedded in kubeConfig file managed by kubeadm.
// Please note that the kubeConfig file itself is kept in the ReadWriter state thus allowing
// to preserve the attributes (Context, Servers, AuthInfo etc.)
func (rw *kubeConfigReadWriter) Read() (*x509.Certificate, error) { … }

// Write a certificate embedded in kubeConfig file managed by kubeadm
// Please note that all the other attribute of the kubeConfig file are preserved, but this
// requires to call Read before Write
func (rw *kubeConfigReadWriter) Write(newCert *x509.Certificate, newKey crypto.Signer) error { … }