func (chaincodeSupport *ChaincodeSupport) stopChaincode(context context.Context, cID *pb.ChaincodeID) error {
chaincode := cID.Name
if chaincode == "" {
return fmt.Errorf("chaincode name not set")
}
vmname := container.GetVMFromName(chaincode)
//stop the chaincode
sir := container.StopImageReq{ID: vmname, Timeout: 0}
_, err := container.VMCProcess(context, "Docker", sir)
if err != nil {
err = fmt.Errorf("Error stopping container: %s", err)
//but proceed to cleanup
}
chaincodeSupport.handlerMap.Lock()
if _, ok := chaincodeSupport.chaincodeHasBeenLaunched(chaincode); !ok {
//nothing to do
chaincodeSupport.handlerMap.Unlock()
return nil
}
delete(chaincodeSupport.handlerMap.chaincodeMap, chaincode)
chaincodeSupport.handlerMap.Unlock()
return err
}
// DeployChaincode deploys the chaincode if not in development mode where user is running the chaincode.
func (chaincodeSupport *ChaincodeSupport) DeployChaincode(context context.Context, t *pb.Transaction) (*pb.ChaincodeDeploymentSpec, error) {
if chaincodeSupport.userRunsCC {
chaincodeLog.Debug("user runs chaincode, not deploying chaincode")
return nil, nil
}
//build the chaincode
cds := &pb.ChaincodeDeploymentSpec{}
err := proto.Unmarshal(t.Payload, cds)
if err != nil {
return nil, err
}
cID := cds.ChaincodeSpec.ChaincodeID
chaincode := cID.Name
if err != nil {
return cds, err
}
chaincodeSupport.handlerMap.Lock()
//if its in the map, there must be a connected stream...and we are trying to build the code ?!
if _, ok := chaincodeSupport.chaincodeHasBeenLaunched(chaincode); ok {
chaincodeLog.Debug("deploy ?!! there's a chaincode with that name running: %s", chaincode)
chaincodeSupport.handlerMap.Unlock()
return cds, fmt.Errorf("deploy attempted but a chaincode with same name running %s", chaincode)
}
chaincodeSupport.handlerMap.Unlock()
//openchain.yaml in the container likely will not have the right url:version. We know the right
//values, lets construct and pass as envs
var targz io.Reader = bytes.NewBuffer(cds.CodePackage)
envs := []string{"OPENCHAIN_CHAINCODE_ID_NAME=" + chaincode, "OPENCHAIN_PEER_ADDRESS=" + chaincodeSupport.peerAddress}
toks := strings.Split(cID.Path, "/")
if toks == nil {
return cds, fmt.Errorf("cannot get path components from %s", chaincode)
}
//TODO : chaincode executable will be same as the name of the last folder (golang thing...)
// need to revisit executable name assignment
//e.g, for path (http(s)://)github.com/openblockchain/obc-peer/openchain/example/chaincode/chaincode_example01
// exec is "chaincode_example01"
exec := []string{chaincodeSupport.chaincodeInstallPath + toks[len(toks)-1]}
chaincodeLog.Debug("Executable is %s", exec[0])
vmname := container.GetVMFromName(chaincode)
cir := &container.CreateImageReq{ID: vmname, Args: exec, Reader: targz, Env: envs}
chaincodeLog.Debug("deploying chaincode %s", vmname)
//create image and create container
_, err = container.VMCProcess(context, "Docker", cir)
if err != nil {
err = fmt.Errorf("Error starting container: %s", err)
}
return cds, err
}
// launchAndWaitForRegister will launch container if not already running
func (chaincodeSupport *ChaincodeSupport) launchAndWaitForRegister(context context.Context, cID *pb.ChaincodeID, uuid string) (bool, error) {
chaincode := cID.Name
if chaincode == "" {
return false, fmt.Errorf("chaincode name not set")
}
chaincodeSupport.handlerMap.Lock()
var ok bool
//if its in the map, there must be a connected stream...nothing to do
if _, ok = chaincodeSupport.chaincodeHasBeenLaunched(chaincode); ok {
chaincodeLog.Debug("chaincode is running and ready: %s", chaincode)
chaincodeSupport.handlerMap.Unlock()
return true, nil
}
alreadyRunning := false
notfy := chaincodeSupport.preLaunchSetup(chaincode)
chaincodeSupport.handlerMap.Unlock()
//launch the chaincode
//creat a StartImageReq obj and send it to VMCProcess
vmname := container.GetVMFromName(chaincode)
chaincodeLog.Debug("start container: %s", vmname)
sir := container.StartImageReq{ID: vmname, Detach: true}
resp, err := container.VMCProcess(context, "Docker", sir)
if err != nil || (resp != nil && resp.(container.VMCResp).Err != nil) {
if err == nil {
err = resp.(container.VMCResp).Err
}
err = fmt.Errorf("Error starting container: %s", err)
chaincodeSupport.handlerMap.Lock()
delete(chaincodeSupport.handlerMap.chaincodeMap, chaincode)
chaincodeSupport.handlerMap.Unlock()
return alreadyRunning, err
}
//wait for REGISTER state
select {
case ok := <-notfy:
if !ok {
err = fmt.Errorf("registration failed for %s(tx:%s)", vmname, uuid)
}
case <-time.After(chaincodeSupport.ccStartupTimeout):
err = fmt.Errorf("Timeout expired while starting chaincode %s(tx:%s)", vmname, uuid)
}
if err != nil {
chaincodeLog.Debug("stopping due to error while launching %s", err)
errIgnore := chaincodeSupport.stopChaincode(context, cID)
if errIgnore != nil {
chaincodeLog.Debug("error on stop %s(%s)", errIgnore, err)
}
}
return alreadyRunning, err
}
// DeployChaincode deploys the chaincode if not in development mode where user is running the chaincode.
func (chaincodeSupport *ChaincodeSupport) DeployChaincode(context context.Context, t *pb.Transaction) (*pb.ChaincodeDeploymentSpec, error) {
if chaincodeSupport.userRunsCC {
chaincodeLog.Debug("user runs chaincode, not deploying chaincode")
return nil, nil
}
//build the chaincode
cds := &pb.ChaincodeDeploymentSpec{}
err := proto.Unmarshal(t.Payload, cds)
if err != nil {
return nil, err
}
cID := cds.ChaincodeSpec.ChaincodeID
chaincode := cID.Name
if err != nil {
return cds, err
}
chaincodeSupport.handlerMap.Lock()
//if its in the map, there must be a connected stream...and we are trying to build the code ?!
if _, ok := chaincodeSupport.chaincodeHasBeenLaunched(chaincode); ok {
chaincodeLog.Debug("deploy ?!! there's a chaincode with that name running: %s", chaincode)
chaincodeSupport.handlerMap.Unlock()
return cds, fmt.Errorf("deploy attempted but a chaincode with same name running %s", chaincode)
}
chaincodeSupport.handlerMap.Unlock()
args, envs, err := chaincodeSupport.getArgsAndEnv(cID)
if err != nil {
return cds, fmt.Errorf("error getting args for chaincode %s", err)
}
vmname := container.GetVMFromName(chaincode)
var targz io.Reader = bytes.NewBuffer(cds.CodePackage)
cir := &container.CreateImageReq{ID: vmname, Args: args, Reader: targz, Env: envs}
chaincodeLog.Debug("deploying chaincode %s", vmname)
//create image and create container
_, err = container.VMCProcess(context, "Docker", cir)
if err != nil {
err = fmt.Errorf("Error starting container: %s", err)
}
return cds, err
}
