// viper read config file, marshal to definition struct,
// load service, validate name and data container
func LoadChainDefinition(chainName string, newCont bool, cNum ...int) (*definitions.Chain, error) {
if len(cNum) == 0 {
cNum = append(cNum, 0)
}
if cNum[0] == 0 {
cNum[0] = util.AutoMagic(0, definitions.TypeChain, newCont)
log.WithField("=>", fmt.Sprintf("%s:%d", chainName, cNum[0])).Debug("Loading chain definition (autoassigned)")
} else {
log.WithField("=>", fmt.Sprintf("%s:%d", chainName, cNum[0])).Debug("Loading chain definition")
}
chain := definitions.BlankChain()
chain.Name = chainName
chain.Operations.ContainerNumber = cNum[0]
chain.Operations.ContainerType = definitions.TypeChain
chain.Operations.Labels = util.Labels(chain.Name, chain.Operations)
if err := setChainDefaults(chain); err != nil {
return nil, err
}
chainConf, err := config.LoadViperConfig(filepath.Join(ChainsPath), chainName, "chain")
if err != nil {
return nil, err
}
// marshal chain and always reset the operational requirements
// this will make sure to sync with docker so that if changes
// have occured in the interim they are caught.
if err = MarshalChainDefinition(chainConf, chain); err != nil {
return nil, err
}
// Docker 1.6 (which eris doesn't support) had different linking mechanism.
if ver, _ := util.DockerClientVersion(); ver >= version.DVER_MIN {
if chain.Dependencies != nil {
addDependencyVolumesAndLinks(chain.Dependencies, chain.Service, chain.Operations)
}
}
checkChainNames(chain)
log.WithFields(log.Fields{
"container number": chain.Operations.ContainerNumber,
"environment": chain.Service.Environment,
"entrypoint": chain.Service.EntryPoint,
"cmd": chain.Service.Command,
}).Debug("Chain definition loaded")
return chain, nil
}
// LoadDataDefinition returns an Operation structure for a blank data container
// specified by a name dataName and a cNum number.
func LoadDataDefinition(dataName string, cNum int) *definitions.Operation {
if cNum == 0 {
cNum = 1
}
log.WithField("=>", fmt.Sprintf("%s:%d", dataName, cNum)).Debug("Loading data definition")
ops := definitions.BlankOperation()
ops.ContainerNumber = cNum
ops.ContainerType = definitions.TypeData
ops.SrvContainerName = util.DataContainersName(dataName, cNum)
ops.DataContainerName = util.DataContainersName(dataName, cNum)
ops.Labels = util.Labels(dataName, ops)
return ops
}
// LoadDataDefinition returns an Operation structure for a blank data container
// specified by a name dataName and a cNum number.
func LoadDataDefinition(dataName string, cNum int) *definitions.Operation {
if cNum == 0 {
cNum = 1
}
logger.Debugf("Loading Data Definition =>\t%s:%d\n", dataName, cNum)
ops := definitions.BlankOperation()
ops.ContainerNumber = cNum
ops.ContainerType = definitions.TypeData
ops.SrvContainerName = util.DataContainersName(dataName, cNum)
ops.DataContainerName = util.DataContainersName(dataName, cNum)
ops.Labels = util.Labels(dataName, ops)
return ops
}
func MockServiceDefinition(servName string, newCont bool, cNum ...int) *definitions.ServiceDefinition {
srv := definitions.BlankServiceDefinition()
srv.Name = servName
if len(cNum) == 0 {
srv.Operations.ContainerNumber = util.AutoMagic(cNum[0], definitions.TypeService, newCont)
logger.Debugf("Mocking Service Definition =>\t%s:%d (autoassigned)\n", servName, cNum[0])
} else {
srv.Operations.ContainerNumber = cNum[0]
logger.Debugf("Mocking Service Definition =>\t%s:%d\n", servName, cNum[0])
}
srv.Operations.ContainerType = definitions.TypeService
srv.Operations.Labels = util.Labels(servName, srv.Operations)
ServiceFinalizeLoad(srv)
return srv
}
func MockServiceDefinition(servName string, newCont bool, cNum ...int) *definitions.ServiceDefinition {
srv := definitions.BlankServiceDefinition()
srv.Name = servName
if len(cNum) == 0 {
srv.Operations.ContainerNumber = util.AutoMagic(cNum[0], definitions.TypeService, newCont)
log.WithField("=>", fmt.Sprintf("%s:%d", servName, cNum[0])).Debug("Mocking service definition (autoassigned)")
} else {
srv.Operations.ContainerNumber = cNum[0]
log.WithField("=>", fmt.Sprintf("%s:%d", servName, cNum[0])).Debug("Mocking service definition")
}
srv.Operations.ContainerType = definitions.TypeService
srv.Operations.Labels = util.Labels(servName, srv.Operations)
ServiceFinalizeLoad(srv)
return srv
}
func MockChainDefinition(chainName, chainID string, newCont bool, cNum ...int) *definitions.Chain {
chn := definitions.BlankChain()
chn.Name = chainName
chn.ChainID = chainID
chn.Service.AutoData = true
if len(cNum) == 0 {
chn.Operations.ContainerNumber = util.AutoMagic(cNum[0], definitions.TypeChain, newCont)
logger.Debugf("Mocking Chain Definition =>\t%s:%d (autoassigned)\n", chainName, cNum[0])
} else {
chn.Operations.ContainerNumber = cNum[0]
logger.Debugf("Mocking Chain Definition =>\t%s:%d\n", chainName, cNum[0])
}
chn.Operations.ContainerType = definitions.TypeChain
chn.Operations.Labels = util.Labels(chainName, chn.Operations)
checkChainNames(chn)
return chn
}
func MockChainDefinition(chainName, chainID string, newCont bool, cNum ...int) *definitions.Chain {
chn := definitions.BlankChain()
chn.Name = chainName
chn.ChainID = chainID
chn.Service.AutoData = true
if len(cNum) == 0 {
chn.Operations.ContainerNumber = util.AutoMagic(cNum[0], definitions.TypeChain, newCont)
log.WithField("=>", fmt.Sprintf("%s:%d", chainName, cNum[0])).Debug("Mocking chain definition (autoassigned)")
} else {
chn.Operations.ContainerNumber = cNum[0]
log.WithField("=>", fmt.Sprintf("%s:%d", chainName, cNum[0])).Debug("Mocking chain definition")
}
chn.Operations.ContainerType = definitions.TypeChain
chn.Operations.Labels = util.Labels(chainName, chn.Operations)
checkChainNames(chn)
return chn
}
func LoadServiceDefinition(servName string, newCont bool, cNum ...int) (*definitions.ServiceDefinition, error) {
if len(cNum) == 0 {
cNum = append(cNum, 0)
}
if cNum[0] == 0 {
cNum[0] = util.AutoMagic(0, definitions.TypeService, newCont)
logger.Debugf("Loading Service Definition =>\t%s:%d (autoassigned)\n", servName, cNum[0])
} else {
logger.Debugf("Loading Service Definition =>\t%s:%d\n", servName, cNum[0])
}
srv := definitions.BlankServiceDefinition()
srv.Operations.ContainerType = definitions.TypeService
srv.Operations.ContainerNumber = cNum[0]
srv.Operations.Labels = util.Labels(servName, srv.Operations)
serviceConf, err := loadServiceDefinition(servName)
if err != nil {
return nil, err
}
if err = MarshalServiceDefinition(serviceConf, srv); err != nil {
return nil, err
}
if srv.Service == nil {
return nil, fmt.Errorf("No service given.")
}
if err = checkImage(srv.Service); err != nil {
return nil, err
}
// Docker 1.6 (which eris doesn't support) had different linking mechanism.
if ver, _ := util.DockerClientVersion(); ver >= version.DVER_MIN {
addDependencyVolumesAndLinks(srv.Dependencies, srv.Service, srv.Operations)
}
ServiceFinalizeLoad(srv)
return srv, nil
}
// DockerRename renames the container by removing and recreating it. The container
// is also restarted if it was running before rename. The container ops.SrvContainerName
// is renamed to a new name, constructed using a short given newName.
// DockerRename returns Docker errors on exit or ErrContainerExists
// if the container with the new (long) name exists.
//
// ops.SrvContainerName - container name
// ops.ContainerNumber - container number
// ops.ContainerType - container type
// ops.Labels - container creation time labels
//
func DockerRename(ops *def.Operation, newName string) error {
longNewName := util.ContainersName(ops.ContainerType, newName, ops.ContainerNumber)
logger.Infof("Renaming container =>\t\t%s to %s\n", ops.SrvContainerName, longNewName)
logger.Debugln("\tChecking container exist")
container, err := util.DockerClient.InspectContainer(ops.SrvContainerName)
if err != nil {
return err
}
logger.Debugln("\tChecking new container exist (should fail)")
_, err = util.DockerClient.InspectContainer(longNewName)
if err == nil {
return ErrContainerExists
}
// Mark if the container's running to restart it later.
_, wasRunning := ContainerRunning(ops)
if wasRunning {
logger.Debugln("\tStopping container")
if err := util.DockerClient.StopContainer(container.ID, 5); err != nil {
logger.Debugln("\tNot stopped")
}
}
logger.Debugln("\tRemoving container")
removeOpts := docker.RemoveContainerOptions{
ID: container.ID,
RemoveVolumes: true,
Force: true,
}
if err := util.DockerClient.RemoveContainer(removeOpts); err != nil {
return err
}
logger.Debugln("\tCreating the new container")
createOpts := docker.CreateContainerOptions{
Name: longNewName,
Config: container.Config,
HostConfig: container.HostConfig,
}
// If VolumesFrom contains links to non-existent containers, remove them.
var newVolumesFrom []string
for _, name := range createOpts.HostConfig.VolumesFrom {
_, err = util.DockerClient.InspectContainer(name)
if err != nil {
continue
}
name = strings.TrimSuffix(name, ":ro")
name = strings.TrimSuffix(name, ":rw")
newVolumesFrom = append(newVolumesFrom, name)
}
createOpts.HostConfig.VolumesFrom = newVolumesFrom
// Rename labels.
createOpts.Config.Labels = util.Labels(newName, ops)
newContainer, err := util.DockerClient.CreateContainer(createOpts)
if err != nil {
logger.Debugln("Not created")
return err
}
// Was running before remove.
if wasRunning {
err := util.DockerClient.StartContainer(newContainer.ID, createOpts.HostConfig)
if err != nil {
logger.Debugln("Not restarted")
}
}
logger.Infoln("Container renamed")
return nil
}
