func RmChain(do *definitions.Do) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
if IsChainExisting(chain) {
if err = perform.DockerRemove(chain.Service, chain.Operations, do.RmD); err != nil {
return err
}
} else {
logger.Infoln("That chain's container does not exist.")
}
if do.File {
oldFile := util.GetFileByNameAndType("chains", do.Name)
if err != nil {
return err
}
oldFile = path.Join(BlockchainsPath, oldFile) + ".toml"
logger.Printf("Removing file =>\t\t%s\n", oldFile)
if err := os.Remove(oldFile); err != nil {
return err
}
}
return nil
}
func KillChain(do *definitions.Do) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
if do.Force {
do.Timeout = 0 //overrides 10 sec default
}
if IsChainRunning(chain) {
if err := perform.DockerStop(chain.Service, chain.Operations, do.Timeout); err != nil {
return err
}
} else {
logger.Infoln("Chain not currently running. Skipping.")
}
if do.Rm {
if err := perform.DockerRemove(chain.Service, chain.Operations, do.RmD, do.Volumes); err != nil {
return err
}
}
return nil
}
// boot chain dependencies
// TODO: this currently only supports simple services (with no further dependencies)
func bootDependencies(chain *definitions.Chain, do *definitions.Do) error {
if chain.Dependencies != nil {
name := do.Name
logger.Infoln("Booting chain dependencies", chain.Dependencies.Services, chain.Dependencies.Chains)
for _, srvName := range chain.Dependencies.Services {
do.Name = srvName
srv, err := loaders.LoadServiceDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
// Start corresponding service.
if !services.IsServiceRunning(srv.Service, srv.Operations) {
name := strings.ToUpper(do.Name)
logger.Infof("%s is not running. Starting now. Waiting for %s to become available \n", name, name)
if err = perform.DockerRunService(srv.Service, srv.Operations); err != nil {
return err
}
}
}
do.Name = name // undo side effects
for _, chainName := range chain.Dependencies.Chains {
chn, err := loaders.LoadChainDefinition(chainName, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
if !IsChainRunning(chn) {
return fmt.Errorf("chain %s depends on chain %s but %s is not running", chain.Name, chainName, chainName)
}
}
}
return nil
}
func RmChain(do *definitions.Do) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
if IsChainExisting(chain) {
if err = perform.DockerRemove(chain.Service, chain.Operations, do.RmD, do.Volumes); err != nil {
return err
}
} else {
log.Info("Chain container does not exist")
}
if do.File {
oldFile := util.GetFileByNameAndType("chains", do.Name)
if err != nil {
return err
}
log.WithField("file", oldFile).Warn("Removing file")
if err := os.Remove(oldFile); err != nil {
return err
}
}
return nil
}
func GraduateChain(do *definitions.Do) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, 1)
if err != nil {
return err
}
serv := loaders.ServiceDefFromChain(chain, loaders.ErisChainStart)
if err := services.WriteServiceDefinitionFile(serv, filepath.Join(ServicesPath, chain.ChainID+".toml")); err != nil {
return err
}
return nil
}
func LogsChain(do *definitions.Do) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
err = perform.DockerLogs(chain.Service, chain.Operations, do.Follow, do.Tail)
if err != nil {
return err
}
return nil
}
func PortsChain(do *definitions.Do) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
if IsChainExisting(chain) {
logger.Debugf("Chain exists, getting port mapping.\n")
return perform.PrintPortMappings(chain.Operations.SrvContainerID, do.Args)
}
return nil
}
func PortsChain(do *definitions.Do) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
if IsChainExisting(chain) {
log.WithField("=>", chain.Name).Debug("Getting chain port mapping")
return util.PrintPortMappings(chain.Operations.SrvContainerID, do.Operations.Args)
}
return nil
}
func RegisterChain(do *definitions.Do) error {
// do.Name is mandatory
if do.Name == "" {
return fmt.Errorf("RegisterChain requires a chainame")
}
etcbChain := do.ChainID
do.ChainID = do.Name
// NOTE: registration expects you to have the data container
if !util.IsDataContainer(do.Name, do.Operations.ContainerNumber) {
return fmt.Errorf("Registration requires you to have a data container for the chain. Could not find data for %s", do.Name)
}
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
log.WithField("image", chain.Service.Image).Debug("Chain loaded")
// set chainid and other vars
envVars := []string{
fmt.Sprintf("CHAIN_ID=%s", do.ChainID), // of the etcb chain
fmt.Sprintf("PUBKEY=%s", do.Pubkey), // pubkey to register chain with
fmt.Sprintf("ETCB_CHAIN_ID=%s", etcbChain), // chain id of the etcb chain
fmt.Sprintf("NODE_ADDR=%s", do.Gateway), // etcb node to send the register tx to
fmt.Sprintf("NEW_P2P_SEEDS=%s", do.Operations.Args[0]), // seeds to register for the chain // TODO: deal with multi seed (needs support in tendermint)
}
envVars = append(envVars, do.Env...)
log.WithFields(log.Fields{
"environment": envVars,
"links": do.Links,
}).Debug("Registering chain with")
chain.Service.Environment = append(chain.Service.Environment, envVars...)
chain.Service.Links = append(chain.Service.Links, do.Links...)
if err := bootDependencies(chain, do); err != nil {
return err
}
log.WithFields(log.Fields{
"=>": chain.Service.Name,
"image": chain.Service.Image,
}).Debug("Performing chain container start")
chain.Operations = loaders.LoadDataDefinition(chain.Service.Name, do.Operations.ContainerNumber)
chain.Operations.Args = []string{loaders.ErisChainRegister}
_, err = perform.DockerRunData(chain.Operations, chain.Service)
return err
}
func ExecChain(do *definitions.Do) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
if IsChainExisting(chain) {
logger.Infoln("Chain exists.")
return perform.DockerExec(chain.Service, chain.Operations, do.Args, do.Interactive)
} else {
return fmt.Errorf("Chain does not exist. Please start the chain container with eris chains start %s.\n", do.Name)
}
return nil
}
func InspectChain(do *definitions.Do) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
if IsChainExisting(chain) {
log.WithField("=>", chain.Service.Name).Debug("Inspecting chain")
err := services.InspectServiceByService(chain.Service, chain.Operations, do.Operations.Args[0])
if err != nil {
return err
}
}
return nil
}
func InspectChain(do *definitions.Do) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
if IsChainExisting(chain) {
logger.Debugf("Chain exists, calling services.InspectServiceByService.\n")
err := services.InspectServiceByService(chain.Service, chain.Operations, do.Args[0])
if err != nil {
return err
}
}
return nil
}
func UpdateChain(do *definitions.Do) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
// DockerRebuild is built for services, adding false to the final
// variable will mean it pulls. But we want the opposite default
// behaviour for chains as we do for services in this regard
// so we flip the variable.
err = perform.DockerRebuild(chain.Service, chain.Operations, do.SkipPull, do.Timeout)
if err != nil {
return err
}
return nil
}
func RegisterChain(do *definitions.Do) error {
// do.Name is mandatory
if do.Name == "" {
return fmt.Errorf("RegisterChain requires a chainame")
}
etcbChain := do.ChainID
do.ChainID = do.Name
// NOTE: registration expects you to have the data container
if !data.IsKnown(do.Name) {
return fmt.Errorf("Registration requires you to have a data container for the chain. Could not find data for %s", do.Name)
}
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
logger.Debugf("Chain Loaded. Image =>\t\t%v\n", chain.Service.Image)
// set chainid and other vars
envVars := []string{
fmt.Sprintf("CHAIN_ID=%s", do.ChainID), // of the etcb chain
fmt.Sprintf("PUBKEY=%s", do.Pubkey), // pubkey to register chain with
fmt.Sprintf("ETCB_CHAIN_ID=%s", etcbChain), // chain id of the etcb chain
fmt.Sprintf("NODE_ADDR=%s", do.Gateway), // etcb node to send the register tx to
fmt.Sprintf("NEW_P2P_SEEDS=%s", do.Args[0]), // seeds to register for the chain // TODO: deal with multi seed (needs support in tendermint)
}
envVars = append(envVars, do.Env...)
logger.Debugf("Set env vars from RegisterChain =>\t%v\n", envVars)
chain.Service.Environment = append(chain.Service.Environment, envVars...)
logger.Debugf("Set links from RegisterChain =>\t%v\n", do.Links)
chain.Service.Links = append(chain.Service.Links, do.Links...)
if err := bootDependencies(chain, do); err != nil {
return err
}
logger.Debugf("Starting chain container via Docker =>\t%s\n", chain.Service.Name)
logger.Debugf("\twith Image =>\t\t%s\n", chain.Service.Image)
cmd := []string{loaders.ErisChainRegister}
dataContainerName := util.DataContainersName(chain.Name, chain.Operations.ContainerNumber)
_, err = perform.DockerRunVolumesFromContainer(dataContainerName, false, cmd, chain.Service)
return err
}
func StartChain(do *definitions.Do) error {
logger.Infoln("Ensuring Key Server is Started.")
//should it take a flag? keys server may be running another cNum
// XXX: currently we don't use or need a key server.
// plus this should be specified in a service def anyways
keysService, err := loaders.LoadServiceDefinition("keys", false, 1)
if err != nil {
return err
}
err = perform.DockerRun(keysService.Service, keysService.Operations)
if err != nil {
return err
}
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
logger.Infoln("Cannot start a chain I cannot find.")
do.Result = "no file"
return nil
}
if chain.Name == "" {
logger.Infoln("Cannot start a chain without a name.")
do.Result = "no name"
return nil
}
chain.Service.Command = loaders.ErisChainStart
if do.Run {
chain.Service.Command = loaders.ErisChainStartApi
}
util.OverWriteOperations(chain.Operations, do.Operations)
chain.Service.Environment = append(chain.Service.Environment, "CHAIN_ID="+chain.ChainID)
logger.Infof("StartChainRaw to DockerRun =>\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 err := perform.DockerRun(chain.Service, chain.Operations); err != nil {
do.Result = "error"
return err
}
return nil
}
func UpdateChain(do *definitions.Do) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
// if the chain is already running we need to set the right env vars and command
if IsChainRunning(chain) {
chain.Service.Environment = []string{fmt.Sprintf("CHAIN_ID=%s", do.Name)}
chain.Service.Command = loaders.ErisChainStart
}
err = perform.DockerRebuild(chain.Service, chain.Operations, do.SkipPull, do.Timeout)
if err != nil {
return err
}
return nil
}
func TestLoadChainDefinition(t *testing.T) {
var e error
logger.Infof("Load chain def (from tests) =>\t%s\n", chainName)
chn, e := loaders.LoadChainDefinition(chainName, false, 1)
if e != nil {
fatal(t, e)
}
if chn.Service.Name != chainName {
fatal(t, fmt.Errorf("FAILURE: improper service name on LOAD. expected: %s\tgot: %s", chainName, chn.Service.Name))
}
if !chn.Service.AutoData {
fatal(t, fmt.Errorf("FAILURE: data_container not properly read on LOAD."))
}
if chn.Operations.DataContainerName == "" {
fatal(t, fmt.Errorf("FAILURE: data_container_name not set."))
}
}
func TestLoadChainDefinition(t *testing.T) {
var e error
log.WithField("=>", chainName).Info("Load chain definition (from tests)")
chn, e := loaders.LoadChainDefinition(chainName, false, 1)
if e != nil {
tests.IfExit(e)
}
if chn.Service.Name != chainName {
tests.IfExit(fmt.Errorf("FAILURE: improper service name on LOAD. expected: %s\tgot: %s", chainName, chn.Service.Name))
}
if !chn.Service.AutoData {
tests.IfExit(fmt.Errorf("FAILURE: data_container not properly read on LOAD."))
}
if chn.Operations.DataContainerName == "" {
tests.IfExit(fmt.Errorf("FAILURE: data_container_name not set."))
}
}
func TestLoadChainDefinition(t *testing.T) {
// [pv]: this test belongs to the loaders package.
var err error
chain, err := loaders.LoadChainDefinition(chainName, false, 1)
if err != nil {
t.Fatalf("expected chain definition to be loaded, got %v", err)
}
if chain.Service.Name != chainName {
t.Fatalf("improper service name on load, expected %s, got %s", chainName, chain.Service.Name)
}
if !chain.Service.AutoData {
t.Fatalf("data_container not properly read on load, expected false")
}
if chain.Operations.DataContainerName == "" {
t.Fatalf("data_container_name not set")
}
}
// boot chain dependencies
// TODO: this currently only supports simple services (with no further dependencies)
func bootDependencies(chain *definitions.Chain, do *definitions.Do) error {
if do.Logsrotate {
chain.Dependencies.Services = append(chain.Dependencies.Services, "logsrotate")
}
if chain.Dependencies != nil {
name := do.Name
log.WithFields(log.Fields{
"services": chain.Dependencies.Services,
"chains": chain.Dependencies.Chains,
}).Info("Booting chain dependencies")
for _, srvName := range chain.Dependencies.Services {
do.Name = srvName
srv, err := loaders.LoadServiceDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
// Start corresponding service.
if !services.IsServiceRunning(srv.Service, srv.Operations) {
name := strings.ToUpper(do.Name)
log.WithField("=>", name).Info("Dependency not running. Starting now")
if err = perform.DockerRunService(srv.Service, srv.Operations); err != nil {
return err
}
}
}
do.Name = name // undo side effects
for _, chainName := range chain.Dependencies.Chains {
chn, err := loaders.LoadChainDefinition(chainName, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
if !IsChainRunning(chn) {
return fmt.Errorf("chain %s depends on chain %s but %s is not running", chain.Name, chainName, chainName)
}
}
}
return nil
}
func StartChain(do *definitions.Do) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
logger.Infoln("Cannot start a chain I cannot find.")
do.Result = "no file"
return nil
}
if chain.Name == "" {
logger.Infoln("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.OverWriteOperations(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 DockerRun =>\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 _, err := perform.DockerRun(chain.Service, chain.Operations); err != nil {
do.Result = "error"
return err
}
return nil
}
// export a chain definition file
func ExportChain(do *definitions.Do) error {
chain, err := loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
if IsChainExisting(chain) {
doNow := definitions.NowDo()
doNow.Name = "ipfs"
services.EnsureRunning(doNow)
hash, err := exportFile(do.Name)
if err != nil {
return err
}
log.Warn(hash)
} else {
return fmt.Errorf(`I don't known of that chain.
Please retry with a known chain.
To find known chains use: eris chains ls --known`)
}
return nil
}
// the main function for setting up a chain container
// handles both "new" and "fetch" - most of the differentiating logic is in the container
func setupChain(do *definitions.Do, cmd string) (err error) {
// XXX: if do.Name is unique, we can safely assume (and we probably should) that do.Operations.ContainerNumber = 1
// do.Name is mandatory
if do.Name == "" {
return fmt.Errorf("setupChain requires a chainame")
}
containerName := util.ChainContainersName(do.Name, do.Operations.ContainerNumber)
if do.ChainID == "" {
do.ChainID = do.Name
}
// ensure/create data container
if !data.IsKnown(containerName) {
if err := perform.DockerCreateDataContainer(do.Name, do.Operations.ContainerNumber); err != nil {
return fmt.Errorf("Error creating data containr =>\t%v", err)
}
} else {
logger.Debugln("Data container already exists for", do.Name)
}
logger.Debugf("Chain's Data Contain Built =>\t%s\n", do.Name)
// if something goes wrong, cleanup
defer func() {
if err != nil {
logger.Infof("Error on setupChain =>\t\t%v\n", err)
logger.Infoln("Cleaning up...")
if err2 := RmChain(do); err2 != nil {
// maybe be less dramatic
err = fmt.Errorf("Tragic! Our marmots encountered an error during setupChain for %s.\nThey also failed to cleanup after themselves (remove containers) due to another error.\nFirst error =>\t\t\t%v\nCleanup error =>\t\t%v\n", containerName, err, err2)
}
}
}()
// copy do.Path, do.GenesisFile, do.ConfigFile, do.Priv, do.CSV into container
containerDst := path.Join("blockchains", do.Name) // path in container
dst := path.Join(DataContainersPath, do.Name, containerDst) // path on host
// TODO: deal with do.Operations.ContainerNumbers ....!
// we probably need to update Import
logger.Debugln("container destination:", containerDst)
logger.Debugln("local destination:", dst)
if err = os.MkdirAll(dst, 0700); err != nil {
return fmt.Errorf("Error making data directory: %v", err)
}
var csvFile, csvPath string
if do.CSV != "" {
csvFile = "genesis.csv"
csvPath = fmt.Sprintf("/home/eris/.eris/blockchains/%s/%s", do.ChainID, csvFile)
}
if err := copyFiles(dst, []stringPair{
{do.Path, ""},
{do.GenesisFile, "genesis.json"},
{do.ConfigFile, "config.toml"},
{do.Priv, "priv_validator.json"},
{do.CSV, csvFile},
}); err != nil {
return err
}
// copy from host to container
logger.Debugf("Copying Files into DataCont =>\t%s:%s\n", dst, containerDst)
importDo := definitions.NowDo()
importDo.Name = do.Name
importDo.Operations = do.Operations
if err = data.ImportData(importDo); err != nil {
return err
}
chain := loaders.MockChainDefinition(do.Name, do.ChainID, false, do.Operations.ContainerNumber)
//set maintainer info
chain.Maintainer.Name, chain.Maintainer.Email, err = config.GitConfigUser()
if err != nil {
logger.Debugf(err.Error())
}
// write the chain definition file ...
fileName := filepath.Join(BlockchainsPath, do.Name) + ".toml"
if _, err = os.Stat(fileName); err != nil {
if err = WriteChainDefinitionFile(chain, fileName); err != nil {
return fmt.Errorf("error writing chain definition to file: %v", err)
}
}
chain, err = loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
logger.Debugf("Chain Loaded. Image =>\t\t%v\n", chain.Service.Image)
chain.Operations.PublishAllPorts = do.Operations.PublishAllPorts // TODO: remove this and marshall into struct from cli directly
// cmd should be "new" or "install"
chain.Service.Command = cmd
// do we need to create our own do.GenesisFile?
var genGen bool
if do.GenesisFile == "" {
genGen = true
}
// write the list of <key>:<value> config options as flags
buf := new(bytes.Buffer)
for _, cv := range do.ConfigOpts {
spl := strings.Split(cv, "=")
if len(spl) != 2 {
return fmt.Errorf("Config options should be <key>=<value> pairs. Got %s", cv)
}
buf.WriteString(fmt.Sprintf(" --%s=%s", spl[0], spl[1]))
}
configOpts := buf.String()
// set chainid and other vars
envVars := []string{
fmt.Sprintf("CHAIN_ID=%s", do.ChainID),
fmt.Sprintf("CONTAINER_NAME=%s", containerName),
fmt.Sprintf("RUN=%v", do.Run),
fmt.Sprintf("GENERATE_GENESIS=%v", genGen),
fmt.Sprintf("CSV=%v", csvPath),
fmt.Sprintf("CONFIG_OPTS=%s", configOpts),
}
logger.Debugf("Set env vars from setupChain =>\t%v\n", envVars)
for _, eV := range envVars {
chain.Service.Environment = append(chain.Service.Environment, eV)
}
// TODO: if do.N > 1 ...
chain.Operations.DataContainerName = util.DataContainersName(do.Name, do.Operations.ContainerNumber)
if os.Getenv("TEST_IN_CIRCLE") != "true" {
chain.Operations.Remove = true
}
logger.Debugf("Starting chain via Docker =>\t%s\n", chain.Service.Name)
logger.Debugf("\twith Image =>\t\t%s\n", chain.Service.Image)
err = perform.DockerRun(chain.Service, chain.Operations)
// this err is caught in the defer above
return
}
// the main function for setting up a chain container
// handles both "new" and "fetch" - most of the differentiating logic is in the container
func setupChain(do *definitions.Do, cmd string) (err error) {
// XXX: if do.Name is unique, we can safely assume (and we probably should) that do.Operations.ContainerNumber = 1
// do.Name is mandatory
if do.Name == "" {
return fmt.Errorf("setupChain requires a chainame")
}
containerName := util.ChainContainersName(do.Name, do.Operations.ContainerNumber)
if do.ChainID == "" {
do.ChainID = do.Name
}
//if given path does not exist, see if its a reference to something in ~/.eris/chains/chainName
if do.Path != "" {
src, err := os.Stat(do.Path)
if err != nil || !src.IsDir() {
logger.Infof("Path (%s) does not exist or is not a directory, trying $HOME/.eris/chains/%s\n", do.Path, do.Path)
do.Path, err = util.ChainsPathChecker(do.Path)
if err != nil {
return err
}
}
} else if do.GenesisFile == "" && do.CSV == "" && len(do.ConfigOpts) == 0 {
// NOTE: this expects you to have ~/.eris/chains/default/ (ie. to have run `eris init`)
do.Path, err = util.ChainsPathChecker("default")
if err != nil {
return err
}
}
// ensure/create data container
if !data.IsKnown(do.Name) {
ops := loaders.LoadDataDefinition(do.Name, do.Operations.ContainerNumber)
if err := perform.DockerCreateData(ops); err != nil {
return fmt.Errorf("Error creating data container =>\t%v", err)
}
} else {
logger.Debugln("Data container already exists for", do.Name)
}
logger.Debugf("Chain's Data Contain Built =>\t%s\n", do.Name)
// if something goes wrong, cleanup
defer func() {
if err != nil {
logger.Infof("Error on setupChain =>\t\t%v\n", err)
logger.Infoln("Cleaning up...")
if err2 := RmChain(do); err2 != nil {
// maybe be less dramatic
err = fmt.Errorf("Tragic! Our marmots encountered an error during setupChain for %s.\nThey also failed to cleanup after themselves (remove containers) due to another error.\nFirst error =>\t\t\t%v\nCleanup error =>\t\t%v\n", containerName, err, err2)
}
}
}()
// copy do.Path, do.GenesisFile, do.ConfigFile, do.Priv, do.CSV into container
containerDst := path.Join("chains", do.Name) // path in container
dst := path.Join(DataContainersPath, do.Name, containerDst) // path on host
// TODO: deal with do.Operations.ContainerNumbers ....!
// we probably need to update Import
logger.Debugf("Container destination =>\t%s\n", containerDst)
logger.Debugf("Local destination =>\t\t%s\n", dst)
if err = os.MkdirAll(dst, 0700); err != nil {
return fmt.Errorf("Error making data directory: %v", err)
}
// we accept two csvs: one for validators, one for accounts
// if there's only one, its for validators and accounts
var csvFiles []string
var csvPaths string
if do.CSV != "" {
csvFiles = strings.Split(do.CSV, ",")
if len(csvFiles) > 1 {
csvPath1 := fmt.Sprintf("%s/%s/%s/%s", ErisContainerRoot, "chains", do.ChainID, "validators.csv")
csvPath2 := fmt.Sprintf("%s/%s/%s/%s", ErisContainerRoot, "chains", do.ChainID, "accounts.csv")
csvPaths = fmt.Sprintf("%s,%s", csvPath1, csvPath2)
} else {
csvPaths = fmt.Sprintf("%s/%s/%s/%s", ErisContainerRoot, "chains", do.ChainID, "genesis.csv")
}
}
filesToCopy := []stringPair{
{do.Path, ""},
{do.GenesisFile, "genesis.json"},
{do.ConfigFile, "config.toml"},
{do.Priv, "priv_validator.json"},
}
if len(csvFiles) == 1 {
filesToCopy = append(filesToCopy, stringPair{csvFiles[0], "genesis.csv"})
} else if len(csvFiles) > 1 {
filesToCopy = append(filesToCopy, stringPair{csvFiles[0], "validators.csv"})
filesToCopy = append(filesToCopy, stringPair{csvFiles[1], "accounts.csv"})
}
logger.Infof("Copying chain files into the correct location.\n")
if err := copyFiles(dst, filesToCopy); err != nil {
return err
}
// copy from host to container
logger.Debugf("Copying Files into DataCont =>\t%s:%s\n", dst, containerDst)
importDo := definitions.NowDo()
importDo.Name = do.Name
importDo.Operations = do.Operations
importDo.Destination = ErisContainerRoot
importDo.Source = filepath.Join(DataContainersPath, do.Name)
if err = data.ImportData(importDo); err != nil {
return err
}
chain := loaders.MockChainDefinition(do.Name, do.ChainID, false, do.Operations.ContainerNumber)
//set maintainer info
chain.Maintainer.Name, chain.Maintainer.Email, err = config.GitConfigUser()
if err != nil {
logger.Debugf(err.Error())
}
// write the chain definition file ...
fileName := filepath.Join(ChainsPath, do.Name) + ".toml"
if _, err = os.Stat(fileName); err != nil {
if err = WriteChainDefinitionFile(chain, fileName); err != nil {
return fmt.Errorf("error writing chain definition to file: %v", err)
}
}
chain, err = loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
logger.Debugf("Chain Loaded. Image =>\t\t%v\n", chain.Service.Image)
chain.Operations.PublishAllPorts = do.Operations.PublishAllPorts // TODO: remove this and marshall into struct from cli directly
// cmd should be "new" or "install"
chain.Service.Command = cmd
// write the list of <key>:<value> config options as flags
buf := new(bytes.Buffer)
for _, cv := range do.ConfigOpts {
spl := strings.Split(cv, "=")
if len(spl) != 2 {
return fmt.Errorf("Config options should be <key>=<value> pairs. Got %s", cv)
}
buf.WriteString(fmt.Sprintf(" --%s=%s", spl[0], spl[1]))
}
configOpts := buf.String()
// set chainid and other vars
envVars := []string{
fmt.Sprintf("CHAIN_ID=%s", do.ChainID),
fmt.Sprintf("CONTAINER_NAME=%s", containerName),
fmt.Sprintf("CSV=%v", csvPaths), // for mintgen
fmt.Sprintf("CONFIG_OPTS=%s", configOpts), // for config.toml
fmt.Sprintf("NODE_ADDR=%s", do.Gateway), // etcb host
fmt.Sprintf("DOCKER_FIX=%s", " "), // https://github.com/docker/docker/issues/14203
}
envVars = append(envVars, do.Env...)
if do.Run {
// run erisdb instead of tendermint
envVars = append(envVars, "ERISDB_API=true")
}
logger.Debugf("Set env vars from setupChain =>\t%v\n", envVars)
chain.Service.Environment = append(chain.Service.Environment, envVars...)
logger.Debugf("Set links from setupChain =>\t%v\n", do.Links)
chain.Service.Links = append(chain.Service.Links, do.Links...)
// TODO: if do.N > 1 ...
chain.Operations.DataContainerName = util.DataContainersName(do.Name, do.Operations.ContainerNumber)
if err := bootDependencies(chain, do); err != nil {
return err
}
logger.Debugf("Starting chain via Docker =>\t%s\n", chain.Service.Name)
logger.Debugf("\twith Image =>\t\t%s\n", chain.Service.Image)
err = perform.DockerRunService(chain.Service, chain.Operations)
// this err is caught in the defer above
return
}
//------------------------------------------------------------------------
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
}
// XXX: What's going on here? => [csk]: magic
func RenameChain(do *definitions.Do) error {
if do.Name == do.NewName {
return fmt.Errorf("Cannot rename to same name")
}
newNameBase := strings.Replace(do.NewName, filepath.Ext(do.NewName), "", 1)
transformOnly := newNameBase == do.Name
if isKnownChain(do.Name) {
logger.Infof("Renaming chain =>\t\t%s:%s\n", do.Name, do.NewName)
logger.Debugf("Loading Chain Def File =>\t%s\n", do.Name)
chainDef, err := loaders.LoadChainDefinition(do.Name, false, 1) // TODO:CNUM
if err != nil {
return err
}
if !transformOnly {
logger.Debugln("Embarking on DockerRename.")
err = perform.DockerRename(chainDef.Service, chainDef.Operations, do.Name, newNameBase)
if err != nil {
return err
}
}
oldFile := util.GetFileByNameAndType("chains", do.Name)
if err != nil {
return err
}
if filepath.Base(oldFile) == do.NewName {
logger.Infoln("Those are the same file. Not renaming")
return nil
}
logger.Debugln("Renaming Chain Definition File.")
var newFile string
if filepath.Ext(do.NewName) == "" {
newFile = strings.Replace(oldFile, do.Name, do.NewName, 1)
} else {
newFile = filepath.Join(BlockchainsPath, do.NewName)
}
chainDef.Name = newNameBase
chainDef.Service.Name = ""
chainDef.Service.Image = ""
err = WriteChainDefinitionFile(chainDef, newFile)
if err != nil {
return err
}
if !transformOnly {
logger.Infof("Renaming DataC (fm ChainRaw) =>\t%s:%s\n", do.Name, do.NewName)
do.Operations.ContainerNumber = chainDef.Operations.ContainerNumber
logger.Debugf("\twith ContainerNumber =>\t%d\n", do.Operations.ContainerNumber)
err = data.RenameData(do)
if err != nil {
return err
}
}
os.Remove(oldFile)
} else {
return fmt.Errorf("I cannot find that chain. Please check the chain name you sent me.")
}
return nil
}
// the main function for setting up a chain container
// handles both "new" and "fetch" - most of the differentiating logic is in the container
func setupChain(do *definitions.Do, cmd string) (err error) {
// XXX: if do.Name is unique, we can safely assume (and we probably should) that do.Operations.ContainerNumber = 1
// do.Name is mandatory
if do.Name == "" {
return fmt.Errorf("setupChain requires a chainame")
}
containerName := util.ChainContainersName(do.Name, do.Operations.ContainerNumber)
if do.ChainID == "" {
do.ChainID = do.Name
}
// do.Run containers and exit (creates data container)
if !data.IsKnown(containerName) {
if err := perform.DockerCreateDataContainer(do.Name, do.Operations.ContainerNumber); err != nil {
return fmt.Errorf("Error creating data containr =>\t%v", err)
}
}
logger.Debugf("Chain's Data Contain Built =>\t%s\n", do.Name)
// if something goes wrong, cleanup
defer func() {
if err != nil {
logger.Infof("Error on setupChain =>\t\t%v\n", err)
logger.Infoln("Cleaning up...")
if err2 := RmChain(do); err2 != nil {
err = fmt.Errorf("Tragic! Our marmots encountered an error during setupChain for %s.\nThey also failed to cleanup after themselves (remove containers) due to another error.\nFirst error =>\t\t\t%v\nCleanup error =>\t\t%v\n", containerName, err, err2)
}
}
}()
// copy do.Path, do.GenesisFile, config into container
containerDst := path.Join("blockchains", do.Name) // path in container
dst := path.Join(DataContainersPath, do.Name, containerDst) // path on host
// TODO: deal with do.Operations.ContainerNumbers ....!
// we probably need to update Import
if err = os.MkdirAll(dst, 0700); err != nil {
return fmt.Errorf("Error making data directory: %v", err)
}
if do.Path != "" {
if err = Copy(do.Path, dst); err != nil {
return err
}
}
if do.GenesisFile != "" {
if err = Copy(do.GenesisFile, path.Join(dst, "genesis.json")); err != nil {
return err
}
} else {
// TODO: do.Run mintgen and open the do.GenesisFile in editor
}
if do.ConfigFile != "" {
if err = Copy(do.ConfigFile, path.Join(dst, "config."+path.Ext(do.ConfigFile))); err != nil {
return err
}
}
// copy from host to container
logger.Debugf("Copying Files into DataCont =>\t%s:%s\n", dst, containerDst)
importDo := definitions.NowDo()
importDo.Name = do.Name
importDo.Operations = do.Operations
if err = data.ImportData(importDo); err != nil {
return err
}
chain := loaders.MockChainDefinition(do.Name, do.ChainID, false, do.Operations.ContainerNumber)
//get maintainer info
uName, err := gitconfig.Username()
if err != nil {
logger.Debugf("Could not find git user.name, setting chain.Maintainer.Name = \"\"")
uName = ""
}
email, err := gitconfig.Email()
if err != nil {
logger.Debugf("Could not find git user.email, setting chain.Maintainer.Email = \"\"")
email = ""
}
chain.Maintainer.Name = uName
chain.Maintainer.Email = email
// write the chain definition file ...
fileName := filepath.Join(BlockchainsPath, do.Name) + ".toml"
if _, err = os.Stat(fileName); err != nil {
if err = WriteChainDefinitionFile(chain, fileName); err != nil {
return fmt.Errorf("error writing chain definition to file: %v", err)
}
}
chain, err = loaders.LoadChainDefinition(do.Name, false, do.Operations.ContainerNumber)
if err != nil {
return err
}
logger.Debugf("Chain Loaded. Image =>\t\t%v\n", chain.Service.Image)
chain.Operations.PublishAllPorts = do.Operations.PublishAllPorts // TODO: remove this and marshall into struct from cli directly
// cmd should be "new" or "install"
chain.Service.Command = cmd
// do we need to create our own do.GenesisFile?
var genGen bool
if do.GenesisFile == "" {
genGen = true
}
// set chainid and other vars
envVars := []string{
"CHAIN_ID=" + do.ChainID,
"CONTAINER_NAME=" + containerName,
fmt.Sprintf("RUN=%v", do.Run),
fmt.Sprintf("GENERATE_GENESIS=%v", genGen),
}
logger.Debugf("Set env vars from setupChain =>\t%v\n", envVars)
for _, eV := range envVars {
chain.Service.Environment = append(chain.Service.Environment, eV)
}
// TODO mint vs. erisdb (in terms of rpc)
chain.Operations.DataContainerName = util.DataContainersName(do.Name, do.Operations.ContainerNumber)
if os.Getenv("TEST_IN_CIRCLE") != "true" {
chain.Operations.Remove = true
}
logger.Debugf("Starting chain via Docker =>\t%s\n", chain.Service.Name)
logger.Debugf("\twith Image =>\t\t%s\n", chain.Service.Image)
err = perform.DockerRun(chain.Service, chain.Operations)
// this err is caught in the defer above
return
}
// XXX: What's going on here? => [csk]: magic
func RenameChain(do *definitions.Do) error {
if do.Name == do.NewName {
return fmt.Errorf("Cannot rename to same name")
}
newNameBase := strings.Replace(do.NewName, filepath.Ext(do.NewName), "", 1)
transformOnly := newNameBase == do.Name
if util.IsKnownChain(do.Name) {
log.WithFields(log.Fields{
"from": do.Name,
"to": do.NewName,
}).Info("Renaming chain")
log.WithField("=>", do.Name).Debug("Loading chain definition file")
chainDef, err := loaders.LoadChainDefinition(do.Name, false, 1) // TODO:CNUM
if err != nil {
return err
}
if !transformOnly {
log.Debug("Renaming chain container")
err = perform.DockerRename(chainDef.Operations, do.NewName)
if err != nil {
return err
}
}
oldFile := util.GetFileByNameAndType("chains", do.Name)
if err != nil {
return err
}
if filepath.Base(oldFile) == do.NewName {
log.Info("Those are the same file. Not renaming")
return nil
}
log.Debug("Renaming chain definition file")
var newFile string
if filepath.Ext(do.NewName) == "" {
newFile = strings.Replace(oldFile, do.Name, do.NewName, 1)
} else {
newFile = filepath.Join(ChainsPath, do.NewName)
}
chainDef.Name = newNameBase
// Generally we won't want to use Service.Name
// as it will be confused with the Name.
chainDef.Service.Name = ""
// Service.Image should be taken from the default.toml.
chainDef.Service.Image = ""
err = WriteChainDefinitionFile(chainDef, newFile)
if err != nil {
return err
}
if !transformOnly {
log.WithFields(log.Fields{
"from": fmt.Sprintf("%s:%d", do.Name, chainDef.Operations.ContainerNumber),
"to": fmt.Sprintf("%s:%d", do.NewName, chainDef.Operations.ContainerNumber),
}).Info("Renaming chain data container")
do.Operations.ContainerNumber = chainDef.Operations.ContainerNumber
err = data.RenameData(do)
if err != nil {
return err
}
}
os.Remove(oldFile)
} else {
return fmt.Errorf("I cannot find that chain. Please check the chain name you sent me.")
}
return nil
}
