package consul import ( "crypto/x509" "fmt" "net" "time" "github.com/hashicorp/consul/agent/connect" "github.com/hashicorp/consul/agent/metadata" "github.com/hashicorp/consul/agent/structs" "github.com/hashicorp/consul/lib" ) type autoConfigBackend struct { Server *Server } func (b autoConfigBackend) ForwardRPC(method string, info structs.RPCInfo, reply interface{}) (bool, error) { return b.Server.ForwardRPC(method, info, reply) } func (b autoConfigBackend) SignCertificate(csr *x509.CertificateRequest, id connect.CertURI) (*structs.IssuedCert, error) { return b.Server.caManager.SignCertificate(csr, id) } // GetCARoots returns the CA roots. func (b autoConfigBackend) GetCARoots() (*structs.IndexedCARoots, error) { return b.Server.getCARoots(nil, b.Server.fsm.State()) } // DatacenterJoinAddresses will return all the strings suitable for usage in // retry join operations to connect to the the LAN or LAN segment gossip pool. func (b autoConfigBackend) DatacenterJoinAddresses(segment string) ([]string, error) { members, err := b.Server.LANSegmentMembers(segment) if err != nil { return nil, fmt.Errorf("Failed to retrieve members for segment %s - %w", segment, err) } var joinAddrs []string for _, m := range members { if ok, _ := metadata.IsConsulServer(m); ok { serfAddr := net.TCPAddr{IP: m.Addr, Port: int(m.Port)} joinAddrs = append(joinAddrs, serfAddr.String()) } } return joinAddrs, nil } // CreateACLToken will create an ACL token from the given template func (b autoConfigBackend) CreateACLToken(template *structs.ACLToken) (*structs.ACLToken, error) { // we have to require local tokens or else it would require having these servers use a token with acl:write to make a // token create RPC to the servers in the primary DC. if !b.Server.LocalTokensEnabled() { return nil, fmt.Errorf("Agent Auto Configuration requires local token usage to be enabled in this datacenter: %s", b.Server.config.Datacenter) } newToken := *template // generate the accessor id if newToken.AccessorID == "" { accessor, err := lib.GenerateUUID(b.Server.checkTokenUUID) if err != nil { return nil, err } newToken.AccessorID = accessor } // generate the secret id if newToken.SecretID == "" { secret, err := lib.GenerateUUID(b.Server.checkTokenUUID) if err != nil { return nil, err } newToken.SecretID = secret } newToken.CreateTime = time.Now() req := structs.ACLTokenBatchSetRequest{ Tokens: structs.ACLTokens{&newToken}, CAS: false, } // perform the request to mint the new token if _, err := b.Server.raftApplyMsgpack(structs.ACLTokenSetRequestType, &req); err != nil { return nil, err } // return the full token definition from the FSM _, token, err := b.Server.fsm.State().ACLTokenGetByAccessor(nil, newToken.AccessorID, &newToken.EnterpriseMeta) return token, err }