// createAndWriteRootCA creates a Certificate authority for a new Swarm Cluster.
// We're copying ca.CreateAndWriteRootCA, so we can have smaller key-sizes for tests
func createAndWriteRootCA(rootCN string, paths ca.CertPaths, expiry time.Duration) (ca.RootCA, error) {
// Create a simple CSR for the CA using the default CA validator and policy
req := cfcsr.CertificateRequest{
CN: rootCN,
KeyRequest: cfcsr.NewBasicKeyRequest(),
CA: &cfcsr.CAConfig{Expiry: ca.RootCAExpiration},
}
// Generate the CA and get the certificate and private key
cert, _, key, err := initca.New(&req)
if err != nil {
return ca.RootCA{}, err
}
// Convert the key given by initca to an object to create a ca.RootCA
parsedKey, err := helpers.ParsePrivateKeyPEM(key)
if err != nil {
log.Errorf("failed to parse private key: %v", err)
return ca.RootCA{}, err
}
// Convert the certificate into an object to create a ca.RootCA
parsedCert, err := helpers.ParseCertificatePEM(cert)
if err != nil {
return ca.RootCA{}, err
}
// Create a Signer out of the private key
signer, err := local.NewSigner(parsedKey, parsedCert, cfsigner.DefaultSigAlgo(parsedKey), ca.SigningPolicy(expiry))
if err != nil {
log.Errorf("failed to create signer: %v", err)
return ca.RootCA{}, err
}
// Ensure directory exists
err = os.MkdirAll(filepath.Dir(paths.Cert), 0755)
if err != nil {
return ca.RootCA{}, err
}
// Write the Private Key and Certificate to disk, using decent permissions
if err := ioutils.AtomicWriteFile(paths.Cert, cert, 0644); err != nil {
return ca.RootCA{}, err
}
if err := ioutils.AtomicWriteFile(paths.Key, key, 0600); err != nil {
return ca.RootCA{}, err
}
// Create a Pool with our Root CA Certificate
pool := x509.NewCertPool()
if !pool.AppendCertsFromPEM(cert) {
return ca.RootCA{}, fmt.Errorf("failed to append certificate to cert pool")
}
return ca.RootCA{
Signer: signer,
Key: key,
Cert: cert,
Pool: pool,
Digest: digest.FromBytes(cert),
}, nil
}
// createAndWriteRootCA creates a Certificate authority for a new Swarm Cluster.
// We're copying ca.CreateRootCA, so we can have smaller key-sizes for tests
func createAndWriteRootCA(rootCN string, paths ca.CertPaths, expiry time.Duration) (ca.RootCA, error) {
cert, key, err := CreateRootCertAndKey(rootCN)
if err != nil {
return ca.RootCA{}, err
}
// Convert the key given by initca to an object to create a ca.RootCA
parsedKey, err := helpers.ParsePrivateKeyPEM(key)
if err != nil {
log.Errorf("failed to parse private key: %v", err)
return ca.RootCA{}, err
}
// Convert the certificate into an object to create a ca.RootCA
parsedCert, err := helpers.ParseCertificatePEM(cert)
if err != nil {
return ca.RootCA{}, err
}
// Create a Signer out of the private key
signer, err := local.NewSigner(parsedKey, parsedCert, cfsigner.DefaultSigAlgo(parsedKey), ca.SigningPolicy(expiry))
if err != nil {
log.Errorf("failed to create signer: %v", err)
return ca.RootCA{}, err
}
// Ensure directory exists
err = os.MkdirAll(filepath.Dir(paths.Cert), 0755)
if err != nil {
return ca.RootCA{}, err
}
// Write the Private Key and Certificate to disk, using decent permissions
if err := ioutils.AtomicWriteFile(paths.Cert, cert, 0644); err != nil {
return ca.RootCA{}, err
}
if err := ioutils.AtomicWriteFile(paths.Key, key, 0600); err != nil {
return ca.RootCA{}, err
}
// Create a Pool with our Root CA Certificate
pool := x509.NewCertPool()
if !pool.AppendCertsFromPEM(cert) {
return ca.RootCA{}, errors.New("failed to append certificate to cert pool")
}
return ca.RootCA{
Signer: signer,
Key: key,
Cert: cert,
Pool: pool,
Digest: digest.FromBytes(cert),
}, nil
}