// TODO: skip errors flag
func RmData(do *definitions.Do) (err error) {
if len(do.Operations.Args) == 0 {
do.Operations.Args = []string{do.Name}
}
for _, name := range do.Operations.Args {
do.Name = name
if util.IsDataContainer(do.Name, do.Operations.ContainerNumber) {
log.WithField("=>", do.Name).Info("Removing data container")
srv := definitions.BlankServiceDefinition()
srv.Operations.SrvContainerName = util.ContainersName("data", do.Name, do.Operations.ContainerNumber)
if err = perform.DockerRemove(srv.Service, srv.Operations, false, do.Volumes); err != nil {
log.Errorf("Error removing %s: %v", do.Name, err)
return err
}
} else {
err = fmt.Errorf("I cannot find that data container for %s. Please check the data container name you sent me.", do.Name)
log.Error(err)
return err
}
if do.RmHF {
log.WithField("=>", do.Name).Warn("Removing host directory")
if err = os.RemoveAll(filepath.Join(DataContainersPath, do.Name)); err != nil {
return err
}
}
}
do.Result = "success"
return err
}
// Return container links. For sake of simplicity, don't expose
// anything else.
func Links(name string, t string, n int) []string {
container, err := util.DockerClient.InspectContainer(util.ContainersName(t, name, n))
if err != nil {
return []string{}
}
return container.HostConfig.Links
}
// links and mounts for service dependencies
func connectToAService(srv *definitions.Service, ops *definitions.Operation, typ, name, internalName string, link, mount bool) {
log.WithFields(log.Fields{
"=>": srv.Name,
"type": typ,
"name": name,
"internal name": internalName,
"link": link,
"volumes from": mount,
}).Debug("Connecting to service")
containerName := util.ContainersName(typ, name, ops.ContainerNumber)
if link {
newLink := containerName + ":" + internalName
srv.Links = append(srv.Links, newLink)
}
if mount {
// Automagically mount VolumesFrom for serviceDeps so they can
// easily pass files back and forth. note that this is opinionated
// and will mount as read-write. we can revisit this if read-only
// mounting required for specific use cases
newVol := containerName + ":rw"
srv.VolumesFrom = append(srv.VolumesFrom, newVol)
}
}
func RmData(do *definitions.Do) error {
if util.IsDataContainer(do.Name, do.Operations.ContainerNumber) {
logger.Infoln("Removing data container " + do.Name)
srv := definitions.BlankServiceDefinition()
srv.Operations.SrvContainerName = util.ContainersName("data", do.Name, do.Operations.ContainerNumber)
err := perform.DockerRemove(srv.Service, srv.Operations, false)
if err != nil {
return err
}
} else {
return fmt.Errorf("I cannot find that data container. Please check the data container name you sent me.")
}
if do.RmHF {
logger.Println("Removing host folder " + do.Name)
err := os.RemoveAll(path.Join(DataContainersPath, do.Name))
if err != nil {
return err
}
}
do.Result = "success"
return nil
}
// Remove a container of some name, type, and number.
func RemoveContainer(name string, t string, n int) error {
opts := docker.RemoveContainerOptions{
ID: util.ContainersName(t, name, n),
RemoveVolumes: true,
Force: true,
}
if err := util.DockerClient.RemoveContainer(opts); err != nil {
return err
}
return nil
}
func InspectData(do *definitions.Do) error {
if util.IsDataContainer(do.Name, do.Operations.ContainerNumber) {
log.WithField("=>", do.Name).Info("Inspecting data container")
srv := definitions.BlankServiceDefinition()
srv.Operations.SrvContainerName = util.ContainersName(definitions.TypeData, do.Name, do.Operations.ContainerNumber)
err := perform.DockerInspect(srv.Service, srv.Operations, do.Operations.Args[0])
if err != nil {
return err
}
} else {
return fmt.Errorf("I cannot find that data container. Please check the data container name you sent me.")
}
do.Result = "success"
return nil
}
// links and mounts for service dependencies
func connectToAService(srv *definitions.Service, ops *definitions.Operation, typ, name, internalName string, link, mount bool) {
logger.Debugf("Connecting service %s to %s %s (%s) with link (%v) and volumes-from (%v)\n", srv.Name, typ, name, internalName, link, mount)
containerName := util.ContainersName(typ, name, ops.ContainerNumber)
if link {
newLink := containerName + ":" + internalName
srv.Links = append(srv.Links, newLink)
}
if mount {
// Automagically mount VolumesFrom for serviceDeps so they can
// easily pass files back and forth. note that this is opinionated
// and will mount as read-write. we can revisit this if read-only
// mounting required for specific use cases
newVol := containerName + ":rw"
srv.VolumesFrom = append(srv.VolumesFrom, newVol)
}
}
func RenameData(do *definitions.Do) error {
logger.Infof("Renaming Data =>\t\t%s:%s\n", do.Name, do.NewName)
logger.Debugf("\twith ContainerNumber =>\t%d\n", do.Operations.ContainerNumber)
if util.IsDataContainer(do.Name, do.Operations.ContainerNumber) {
srv := definitions.BlankServiceDefinition()
srv.Operations.SrvContainerName = util.ContainersName("data", do.Name, do.Operations.ContainerNumber)
err := perform.DockerRename(srv.Service, srv.Operations, do.Name, do.NewName)
if err != nil {
return err
}
} else {
return fmt.Errorf("I cannot find that data container. Please check the data container name you sent me.")
}
do.Result = "success"
return nil
}
//------------------------------------------------------------------------
func startChain(do *definitions.Do, exec bool) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
logger.Errorln("Cannot start a chain I cannot find.")
do.Result = "no file"
return nil
}
if chain.Name == "" {
logger.Errorln("Cannot start a chain without a name.")
do.Result = "no name"
return nil
}
// boot the dependencies (eg. keys)
if err := bootDependencies(chain, do); err != nil {
return err
}
chain.Service.Command = loaders.ErisChainStart
util.Merge(chain.Operations, do.Operations)
chain.Service.Environment = append(chain.Service.Environment, "CHAIN_ID="+chain.ChainID)
chain.Service.Environment = append(chain.Service.Environment, do.Env...)
if do.Run {
chain.Service.Environment = append(chain.Service.Environment, "ERISDB_API=true")
}
chain.Service.Links = append(chain.Service.Links, do.Links...)
logger.Infof("StartChainRaw to DockerRunService =>\t%s\n", chain.Service.Name)
logger.Debugf("\twith ChainID =>\t\t%v\n", chain.ChainID)
logger.Debugf("\twith Environment =>\t%v\n", chain.Service.Environment)
logger.Debugf("\twith AllPortsPublshd =>\t%v\n", chain.Operations.PublishAllPorts)
if exec {
if do.Image != "" {
chain.Service.Image = do.Image
}
chain.Operations.Args = do.Operations.Args
logger.Debugf("\twith Args =>\t\t%v:%v\n", chain.Operations.Args, chain.Operations.Interactive)
// This override is necessary because erisdb uses an entryPoint and
// the perform package will respect the images entryPoint if it
// exists.
chain.Service.EntryPoint = ""
chain.Service.Command = ""
// there is literally never a reason not to randomize the ports.
chain.Operations.PublishAllPorts = true
// always link the chain to the exec container when doing chains exec
// so that there is never any problems with sending info to the service (chain) container
chain.Service.Links = append(chain.Service.Links, fmt.Sprintf("%s:%s", util.ContainersName("chain", chain.Name, 1), "chain"))
err = perform.DockerExecService(chain.Service, chain.Operations)
} else {
err = perform.DockerRunService(chain.Service, chain.Operations)
}
if err != nil {
do.Result = "error"
return err
}
return 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
}