hyperledger fabric - TLS handshake failed with error remote error: tls: bad certificate server=Orderer

Question

I am trying to set up a hyperledger fabric on a VM manually. I have generated all the artifacts and configured the orderer.yaml and core.yaml. I have orderer running on port 127.0.0.1:7050. When I try to create channel using the peer cli channel create command I am getting a context deadline exceeded message on peer terminal.

./bin/peer channel create -o 127.0.0.1:7050 -c $CHANNEL_NAME -f ./channel-artifacts/channel.tx --tls --cafile /home/fabric-release/mynetwork/crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem

Error: failed to create deliver client: orderer client failed to connect to 127.0.0.1:7050: failed to create new connection: context deadline exceeded

On the orderer terminal I am getting the following error:

2019-04-23 09:22:03.707 EDT [core.comm] ServerHandshake -> ERRO 01b TLS handshake failed with error remote error: tls: bad certificate server=Orderer remoteaddress=127.0.0.1:38618

2019-04-23 09:22:04.699 EDT [core.comm] ServerHandshake -> ERRO 01c TLS handshake failed with error remote error: tls: bad certificate server=Orderer remoteaddress=127.0.0.1:38620

2019-04-23 09:22:06.187 EDT [core.comm] ServerHandshake -> ERRO 01d TLS handshake failed with error remote error: tls: bad certificate server=Orderer remoteaddress=127.0.0.1:38622

I have gone through the configurations a few time, I am not sure if I am missing something. Following is my orderer.yaml

General:
  LedgerType: file
  ListenAddress: 127.0.0.1
  ListenPort: 7050

  TLS:
    Enabled: true
    PrivateKey: /home/fabric-release/mynetwork/crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/server.key
    Certificate: /home/fabric-release/mynetwork/crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/server.crt
    RootCAs:
      - /home/fabric-release/mynetwork/crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/ca.crt
    ClientAuthRequired: true

  Keepalive:
    ServerMinInterval: 60s
    ServerInterval: 7200s
    ServerTimeout: 20s

  GenesisMethod: file

  GenesisProfile: OneOrgOrdererGenesis

  GenesisFile: channel-artifacts/genesis.block

  LocalMSPDIR: /home/fabric-release/mynetwork/crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/msp

  LocalMSPID: OrdererMSP

  Authentication:
    TimeWindow: 15m

FileLedger:
  Location: /var/hyperledger/production/orderer
  Prefix: hyperledger-fabric-ordererledger

Answer 1

The issue is that the TLS server certificate used by the orderer does not have a SAN matching "127.0.0.1". You can add "localhost" and/or "127.0.0.1" to you TLS certificates by using a custom crypto-config.yaml when generating your artifacts with cryptogen:

# ---------------------------------------------------------------------------
# "OrdererOrgs" - Definition of organizations managing orderer nodes
# ---------------------------------------------------------------------------
OrdererOrgs:
  # ---------------------------------------------------------------------------
  # Orderer
  # ---------------------------------------------------------------------------
  - Name: Orderer
    Domain: example.com
    EnableNodeOUs: false

    # ---------------------------------------------------------------------------
    # "Specs" - See PeerOrgs below for complete description
    # ---------------------------------------------------------------------------
    Specs:
      - Hostname: orderer
        SANS:
          - "localhost"
          - "127.0.0.1"

# ---------------------------------------------------------------------------
# "PeerOrgs" - Definition of organizations managing peer nodes
# ---------------------------------------------------------------------------
PeerOrgs:
  # ---------------------------------------------------------------------------
  # Org1
  # ---------------------------------------------------------------------------
  - Name: org1
    Domain: org1.example.com
    EnableNodeOUs: true
    Template:
      Count: 2
      SANS:
         - "localhost"
         - "127.0.0.1"
    Users:
      Count: 1

  - Name: org2
    Domain: org2.example.com
    EnableNodeOUs: false
    Template:
      Count: 2
      SANS:
         - "localhost"
         - "127.0.0.1"
    Users:
      Count: 1