package consulcatalog import ( "fmt" "github.com/hashicorp/consul/agent/connect" "github.com/traefik/traefik/v2/pkg/config/dynamic" traefiktls "github.com/traefik/traefik/v2/pkg/tls" ) // connectCert holds our certificates as a client of the Consul Connect protocol. type connectCert struct { root []string leaf keyPair } func (c *connectCert) getRoot() []traefiktls.FileOrContent { var result []traefiktls.FileOrContent for _, r := range c.root { result = append(result, traefiktls.FileOrContent(r)) } return result } func (c *connectCert) getLeaf() traefiktls.Certificate { return traefiktls.Certificate{ CertFile: traefiktls.FileOrContent(c.leaf.cert), KeyFile: traefiktls.FileOrContent(c.leaf.key), } } func (c *connectCert) isReady() bool { return c != nil && len(c.root) > 0 && c.leaf.cert != "" && c.leaf.key != "" } func (c *connectCert) equals(other *connectCert) bool { if c == nil && other == nil { return true } if c == nil || other == nil { return false } if len(c.root) != len(other.root) { return false } for i, v := range c.root { if v != other.root[i] { return false } } return c.leaf == other.leaf } func (c *connectCert) serversTransport(item itemData) *dynamic.ServersTransport { spiffeIDService := connect.SpiffeIDService{ Namespace: item.Namespace, Datacenter: item.Datacenter, Service: item.Name, } return &dynamic.ServersTransport{ // This ensures that the config changes whenever the verifier function changes ServerName: fmt.Sprintf("%s-%s-%s", item.Namespace, item.Datacenter, item.Name), // InsecureSkipVerify is needed because Go wants to verify a hostname otherwise InsecureSkipVerify: true, RootCAs: c.getRoot(), Certificates: traefiktls.Certificates{ c.getLeaf(), }, PeerCertURI: spiffeIDService.URI().String(), } } func (c *connectCert) tcpServersTransport(item itemData) *dynamic.TCPServersTransport { spiffeIDService := connect.SpiffeIDService{ Namespace: item.Namespace, Datacenter: item.Datacenter, Service: item.Name, } return &dynamic.TCPServersTransport{ TLS: &dynamic.TLSClientConfig{ // This ensures that the config changes whenever the verifier function changes ServerName: fmt.Sprintf("%s-%s-%s", item.Namespace, item.Datacenter, item.Name), // InsecureSkipVerify is needed because Go wants to verify a hostname otherwise InsecureSkipVerify: true, RootCAs: c.getRoot(), Certificates: traefiktls.Certificates{ c.getLeaf(), }, PeerCertURI: spiffeIDService.URI().String(), }, } }