Golang Node.Copy方法代碼示例

// nodesEqual returns true if the node states are functionaly equal, ignoring status,
// version and other superfluous fields.
//
// This used to decide whether or not to propagate a node update to executor.
func nodesEqual(a, b *api.Node) bool {
	a, b = a.Copy(), b.Copy()

	a.Status, b.Status = api.NodeStatus{}, api.NodeStatus{}
	a.Meta, b.Meta = api.Meta{}, api.Meta{}

	return reflect.DeepEqual(a, b)
}

// signNodeCert does the bulk of the work for signing a certificate
func (s *Server) signNodeCert(ctx context.Context, node *api.Node) {
	rootCA := s.securityConfig.RootCA()
	externalCA := s.securityConfig.externalCA

	node = node.Copy()
	nodeID := node.ID
	// Convert the role from proto format
	role, err := ParseRole(node.Certificate.Role)
	if err != nil {
		log.G(ctx).WithFields(logrus.Fields{
			"node.id": node.ID,
			"method":  "(*Server).signNodeCert",
		}).WithError(err).Errorf("failed to parse role")
		return
	}

	// Attempt to sign the CSR
	var (
		rawCSR = node.Certificate.CSR
		cn     = node.Certificate.CN
		ou     = role
		org    = s.securityConfig.ClientTLSCreds.Organization()
	)

	// Try using the external CA first.
	cert, err := externalCA.Sign(PrepareCSR(rawCSR, cn, ou, org))
	if err == ErrNoExternalCAURLs {
		// No external CA servers configured. Try using the local CA.
		cert, err = rootCA.ParseValidateAndSignCSR(rawCSR, cn, ou, org)
	}

	if err != nil {
		log.G(ctx).WithFields(logrus.Fields{
			"node.id": node.ID,
			"method":  "(*Server).signNodeCert",
		}).WithError(err).Errorf("failed to sign CSR")
		// If this error is due the lack of signer, maybe some other
		// manager in the future will pick it up. Return without
		// changing the state of the certificate.
		if err == ErrNoValidSigner {
			return
		}
		// If the current state is already Failed, no need to change it
		if node.Certificate.Status.State == api.IssuanceStateFailed {
			return
		}
		// We failed to sign this CSR, change the state to FAILED
		err = s.store.Update(func(tx store.Tx) error {
			node := store.GetNode(tx, nodeID)
			if node == nil {
				return fmt.Errorf("node %s not found", nodeID)
			}

			node.Certificate.Status = api.IssuanceStatus{
				State: api.IssuanceStateFailed,
				Err:   err.Error(),
			}

			return store.UpdateNode(tx, node)
		})
		if err != nil {
			log.G(ctx).WithFields(logrus.Fields{
				"node.id": nodeID,
				"method":  "(*Server).signNodeCert",
			}).WithError(err).Errorf("transaction failed when setting state to FAILED")
		}
		return
	}

	// We were able to successfully sign the new CSR. Let's try to update the nodeStore
	for {
		err = s.store.Update(func(tx store.Tx) error {
			node.Certificate.Certificate = cert
			node.Certificate.Status = api.IssuanceStatus{
				State: api.IssuanceStateIssued,
			}

			err := store.UpdateNode(tx, node)
			if err != nil {
				node = store.GetNode(tx, nodeID)
				if node == nil {
					err = fmt.Errorf("node %s does not exist", nodeID)
				}
			}
			return err
		})
		if err == nil {
			log.G(ctx).WithFields(logrus.Fields{
				"node.id":   node.ID,
				"node.role": node.Certificate.Role,
				"method":    "(*Server).signNodeCert",
			}).Debugf("certificate issued")
			break
		}
		if err == store.ErrSequenceConflict {
			continue
		}

		log.G(ctx).WithFields(logrus.Fields{
//.........這裏部分代碼省略.........

// signNodeCert does the bulk of the work for signing a certificate
func (s *Server) signNodeCert(ctx context.Context, node *api.Node) {
	if !s.securityConfig.RootCA().CanSign() {
		log.G(ctx).WithFields(logrus.Fields{
			"node.id": node.ID,
			"method":  "(*Server).signNodeCert",
		}).Errorf("no valid signer found")
		return
	}

	node = node.Copy()
	nodeID := node.ID
	// Convert the role from proto format
	role, err := ParseRole(node.Certificate.Role)
	if err != nil {
		log.G(ctx).WithFields(logrus.Fields{
			"node.id": node.ID,
			"method":  "(*Server).signNodeCert",
		}).WithError(err).Errorf("failed to parse role")
		return
	}

	// Attempt to sign the CSR
	cert, err := s.securityConfig.RootCA().ParseValidateAndSignCSR(node.Certificate.CSR, node.Certificate.CN, role, s.securityConfig.ClientTLSCreds.Organization())
	if err != nil {
		log.G(ctx).WithFields(logrus.Fields{
			"node.id": node.ID,
			"method":  "(*Server).signNodeCert",
		}).WithError(err).Errorf("failed to sign CSR")
		// If this error is due the lack of signer, maybe some other
		// manager in the future will pick it up. Return without
		// changing the state of the certificate.
		if err == ErrNoValidSigner {
			return
		}
		// If the current state is already Failed, no need to change it
		if node.Certificate.Status.State == api.IssuanceStateFailed {
			return
		}
		// We failed to sign this CSR, change the state to FAILED
		err = s.store.Update(func(tx store.Tx) error {
			node := store.GetNode(tx, nodeID)
			if node == nil {
				return fmt.Errorf("node %s not found", nodeID)
			}

			node.Certificate.Status = api.IssuanceStatus{
				State: api.IssuanceStateFailed,
				Err:   err.Error(),
			}

			return store.UpdateNode(tx, node)
		})
		if err != nil {
			log.G(ctx).WithFields(logrus.Fields{
				"node.id": nodeID,
				"method":  "(*Server).signNodeCert",
			}).WithError(err).Errorf("transaction failed when setting state to FAILED")
		}
		return
	}

	// We were able to successfully sign the new CSR. Let's try to update the nodeStore
	for {
		err = s.store.Update(func(tx store.Tx) error {
			// Remote nodes are expecting a full certificate chain, not just a signed certificate
			node.Certificate.Certificate = append(cert, s.securityConfig.RootCA().Cert...)
			node.Certificate.Status = api.IssuanceStatus{
				State: api.IssuanceStateIssued,
			}

			err := store.UpdateNode(tx, node)
			if err != nil {
				node = store.GetNode(tx, nodeID)
				if node == nil {
					err = fmt.Errorf("node %s does not exist", nodeID)
				}
			}
			return err
		})
		if err == nil {
			log.G(ctx).WithFields(logrus.Fields{
				"node.id":   node.ID,
				"node.role": node.Certificate.Role,
				"method":    "(*Server).signNodeCert",
			}).Debugf("certificate issued")
			break
		}
		if err == store.ErrSequenceConflict {
			continue
		}

		log.G(ctx).WithFields(logrus.Fields{
			"node.id": nodeID,
			"method":  "(*Server).signNodeCert",
		}).WithError(err).Errorf("transaction failed")
		return
	}
}