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etl.go
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etl.go
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// Package cli provides easy-to-use commands to manage, monitor, and utilize AIS clusters.
// This file handles commands that control running jobs in the cluster.
/*
* Copyright (c) 2018-2024, NVIDIA CORPORATION. All rights reserved.
*/
package cli
import (
"errors"
"fmt"
"io"
"net/http"
"os"
"strings"
"github.com/NVIDIA/aistore/api"
"github.com/NVIDIA/aistore/cmd/cli/teb"
"github.com/NVIDIA/aistore/cmn"
"github.com/NVIDIA/aistore/cmn/cos"
"github.com/NVIDIA/aistore/cmn/debug"
"github.com/NVIDIA/aistore/cmn/k8s"
"github.com/NVIDIA/aistore/ext/etl"
"github.com/fatih/color"
"github.com/urfave/cli"
)
var (
// flags
etlSubFlags = map[string][]cli.Flag{
cmdCode: {
fromFileFlag,
depsFileFlag,
runtimeFlag,
commTypeFlag,
funcTransformFlag,
argTypeFlag,
chunkSizeFlag,
waitPodReadyTimeoutFlag,
etlNameFlag,
},
cmdSpec: {
fromFileFlag,
commTypeFlag,
argTypeFlag,
waitPodReadyTimeoutFlag,
etlNameFlag,
},
cmdStop: {
allRunningJobsFlag,
},
cmdBucket: {
etlAllObjsFlag,
continueOnErrorFlag,
etlExtFlag,
forceFlag,
copyPrependFlag,
copyDryRunFlag,
etlBucketRequestTimeout,
listFlag,
templateFlag,
verbObjPrefixFlag,
// TODO: progressFlag,
waitFlag,
waitJobXactFinishedFlag,
},
cmdStart: {},
}
showCmdETL = cli.Command{
Name: commandShow,
Usage: "show ETL(s)",
Action: etlListHandler,
Subcommands: []cli.Command{
{
Name: cmdDetails,
Usage: "show ETL details",
ArgsUsage: etlNameArgument,
Action: etlShowDetailsHandler,
},
},
}
stopCmdETL = cli.Command{
Name: cmdStop,
Usage: "stop ETL",
ArgsUsage: etlNameListArgument,
Action: etlStopHandler,
BashComplete: etlIDCompletions,
Flags: etlSubFlags[cmdStop],
}
startCmdETL = cli.Command{
Name: cmdStart,
Usage: "start ETL",
ArgsUsage: etlNameArgument,
Action: etlStartHandler,
BashComplete: etlIDCompletions,
Flags: etlSubFlags[cmdStart],
}
initCmdETL = cli.Command{
Name: cmdInit,
Usage: "start ETL job: 'spec' job (requires pod yaml specification) or 'code' job (with transforming function or script in a local file)",
Subcommands: []cli.Command{
{
Name: cmdSpec,
Usage: "start ETL job with YAML Pod specification",
Flags: etlSubFlags[cmdSpec],
Action: etlInitSpecHandler,
},
{
Name: cmdCode,
Usage: "start ETL job using the specified transforming function or script",
Flags: etlSubFlags[cmdCode],
Action: etlInitCodeHandler,
},
},
}
objCmdETL = cli.Command{
Name: cmdObject,
Usage: "transform object",
ArgsUsage: etlNameArgument + " " + objectArgument + " OUTPUT",
Action: etlObjectHandler,
BashComplete: etlIDCompletions,
}
bckCmdETL = cli.Command{
Name: cmdBucket,
Usage: "transform entire bucket or selected objects (to select, use '--list', '--template', or '--prefix')",
ArgsUsage: etlNameArgument + " " + bucketObjectSrcArgument + " " + bucketDstArgument,
Action: etlBucketHandler,
Flags: etlSubFlags[cmdBucket],
BashComplete: manyBucketsCompletions([]cli.BashCompleteFunc{etlIDCompletions}, 1, 2),
}
logsCmdETL = cli.Command{
Name: cmdViewLogs,
Usage: "view ETL logs",
ArgsUsage: etlNameArgument + " " + optionalTargetIDArgument,
Action: etlLogsHandler,
BashComplete: etlIDCompletions,
}
// subcommands
etlCmd = cli.Command{
Name: commandETL,
Usage: "execute custom transformations on objects",
Subcommands: []cli.Command{
initCmdETL,
showCmdETL,
logsCmdETL,
startCmdETL,
stopCmdETL,
objCmdETL,
bckCmdETL,
},
}
)
func etlIDCompletions(c *cli.Context) {
suggestEtlName(c, 0)
}
func suggestEtlName(c *cli.Context, shift int) {
if c.NArg() > shift {
return
}
list, err := api.ETLList(apiBP)
if err != nil {
return
}
for _, l := range list {
fmt.Print(l.Name)
}
}
func etlAlreadyExists(etlName string) (err error) {
if l := findETL(etlName, ""); l != nil {
return fmt.Errorf("ETL[%s] already exists", etlName)
}
return
}
// either by name or xaction ID
func findETL(etlName, xid string) *etl.Info {
list, err := api.ETLList(apiBP)
if err != nil {
return nil
}
for _, l := range list {
if etlName != "" && l.Name == etlName {
return &l
}
if xid != "" && l.XactID == xid {
return &l
}
}
return nil
}
func etlInitSpecHandler(c *cli.Context) (err error) {
fromFile := parseStrFlag(c, fromFileFlag)
if fromFile == "" {
return fmt.Errorf("flag %s must be specified", qflprn(fromFileFlag))
}
spec, err := os.ReadFile(fromFile)
if err != nil {
return err
}
msg := &etl.InitSpecMsg{}
{
msg.IDX = parseStrFlag(c, etlNameFlag)
msg.CommTypeX = parseStrFlag(c, commTypeFlag)
msg.ArgTypeX = parseStrFlag(c, argTypeFlag)
msg.Spec = spec
}
if !strings.HasSuffix(msg.CommTypeX, etl.CommTypeSeparator) {
msg.CommTypeX += etl.CommTypeSeparator
}
if err = msg.Validate(); err != nil {
if e, ok := err.(*cmn.ErrETL); ok {
err = errors.New(e.Reason)
}
return err
}
// msg.ID is `metadata.name` from podSpec
if err = etlAlreadyExists(msg.Name()); err != nil {
return
}
xid, err := api.ETLInit(apiBP, msg)
if err != nil {
return V(err)
}
fmt.Fprintf(c.App.Writer, "ETL[%s]: job %q\n", msg.Name(), xid)
return nil
}
func etlInitCodeHandler(c *cli.Context) (err error) {
var (
msg = &etl.InitCodeMsg{}
fromFile = parseStrFlag(c, fromFileFlag)
)
if fromFile == "" {
return fmt.Errorf("flag %s cannot be empty", qflprn(fromFileFlag))
}
msg.IDX = parseStrFlag(c, etlNameFlag)
if msg.Name() != "" {
if err = k8s.ValidateEtlName(msg.Name()); err != nil {
return
}
if err = etlAlreadyExists(msg.Name()); err != nil {
return
}
}
if msg.Code, err = os.ReadFile(fromFile); err != nil {
return fmt.Errorf("failed to read %q: %v", fromFile, err)
}
depsFile := parseStrFlag(c, depsFileFlag)
if depsFile != "" {
if msg.Deps, err = os.ReadFile(depsFile); err != nil {
return fmt.Errorf("failed to read %q: %v", depsFile, err)
}
}
msg.Runtime = parseStrFlag(c, runtimeFlag)
msg.CommTypeX = parseStrFlag(c, commTypeFlag)
if !strings.HasSuffix(msg.CommTypeX, etl.CommTypeSeparator) {
msg.CommTypeX += etl.CommTypeSeparator
}
msg.ArgTypeX = parseStrFlag(c, argTypeFlag)
if flagIsSet(c, chunkSizeFlag) {
msg.ChunkSize, err = parseSizeFlag(c, chunkSizeFlag)
if err != nil {
return err
}
}
msg.Timeout = cos.Duration(parseDurationFlag(c, waitPodReadyTimeoutFlag))
// funcs
msg.Funcs.Transform = parseStrFlag(c, funcTransformFlag)
// validate
if err := msg.Validate(); err != nil {
if e, ok := err.(*cmn.ErrETL); ok {
err = errors.New(e.Reason)
}
return err
}
// start
xid, err := api.ETLInit(apiBP, msg)
if err != nil {
return V(err)
}
fmt.Fprintf(c.App.Writer, "ETL[%s]: job %q\n", msg.Name(), xid)
return nil
}
func etlListHandler(c *cli.Context) (err error) {
_, err = etlList(c, false)
return
}
func showETLs(c *cli.Context, etlName string, caption bool) (int, error) {
if etlName == "" {
return etlList(c, caption)
}
return 1, etlPrintDetails(c, etlName) // TODO: extend to show Status and runtime stats
}
func etlList(c *cli.Context, caption bool) (int, error) {
list, err := api.ETLList(apiBP)
l := len(list)
if err != nil || l == 0 {
return l, V(err)
}
if caption {
onlyActive := !flagIsSet(c, allJobsFlag)
jobCptn(c, commandETL, onlyActive, "", false)
}
hideHeader := flagIsSet(c, noHeaderFlag)
if hideHeader {
return l, teb.Print(list, teb.TransformListNoHdrTmpl)
}
return l, teb.Print(list, teb.TransformListTmpl)
}
func etlShowDetailsHandler(c *cli.Context) error {
if c.NArg() == 0 {
return missingArgumentsError(c, c.Command.ArgsUsage)
}
id := c.Args().Get(0)
return etlPrintDetails(c, id)
}
func etlPrintDetails(c *cli.Context, id string) error {
msg, err := api.ETLGetInitMsg(apiBP, id)
if err != nil {
return V(err)
}
fmt.Fprintln(c.App.Writer, fblue("NAME: "), msg.Name())
fmt.Fprintln(c.App.Writer, fblue("COMMUNICATION TYPE: "), msg.CommType())
fmt.Fprintln(c.App.Writer, fblue("ARGUMENT TYPE: "), msg.ArgType())
if initMsg, ok := msg.(*etl.InitCodeMsg); ok {
fmt.Fprintln(c.App.Writer, fblue("RUNTIME: "), initMsg.Runtime)
fmt.Fprintln(c.App.Writer, fblue("CODE: "))
fmt.Fprintln(c.App.Writer, string(initMsg.Code))
fmt.Fprintln(c.App.Writer, fblue("DEPS: "), string(initMsg.Deps))
fmt.Fprintln(c.App.Writer, fblue("CHUNK SIZE: "), initMsg.ChunkSize)
return nil
}
if initMsg, ok := msg.(*etl.InitSpecMsg); ok {
fmt.Fprintln(c.App.Writer, fblue("SPEC: "))
fmt.Fprintln(c.App.Writer, string(initMsg.Spec))
return nil
}
err = fmt.Errorf("invalid response [%+v, %T]", msg, msg)
debug.AssertNoErr(err)
return err
}
// TODO: initial, see "download logs"
func etlLogsHandler(c *cli.Context) (err error) {
var (
id = c.Args().Get(0)
targetID = c.Args().Get(1) // optional
)
if c.NArg() == 0 {
return missingArgumentsError(c, c.Command.ArgsUsage)
}
logs, err := api.ETLLogs(apiBP, id, targetID)
if err != nil {
return V(err)
}
if targetID != "" {
fmt.Fprintln(c.App.Writer, string(logs[0].Logs))
return nil
}
for idx, log := range logs {
if idx > 0 {
fmt.Fprintln(c.App.Writer)
}
fmt.Fprintf(c.App.Writer, "%s:\n%s\n", log.TargetID, string(log.Logs))
}
return nil
}
func etlStopHandler(c *cli.Context) error {
return stopETLs(c, "")
}
func stopETLs(c *cli.Context, name string) (err error) {
var etlNames []string
switch {
case name != "":
etlNames = append(etlNames, name)
case flagIsSet(c, allRunningJobsFlag):
if c.NArg() > 0 {
etlNames = c.Args()[0:]
return incorrectUsageMsg(c, "flag %s cannot be used together with %s %v",
qflprn(allRunningJobsFlag), etlNameArgument, etlNames)
}
res, err := api.ETLList(apiBP)
if err != nil {
return V(err)
}
for _, etlInfo := range res {
etlNames = append(etlNames, etlInfo.Name)
}
default:
if c.NArg() == 0 {
return missingArgumentsError(c, c.Command.ArgsUsage)
}
etlNames = c.Args()[0:]
}
for _, name := range etlNames {
msg := fmt.Sprintf("ETL[%s]", name)
if err := api.ETLStop(apiBP, name); err != nil {
if herr, ok := err.(*cmn.ErrHTTP); ok && herr.Status == http.StatusNotFound {
actionWarn(c, msg+" not found, nothing to do")
continue
}
return V(err)
}
actionDone(c, msg+" stopped")
}
return nil
}
func etlStartHandler(c *cli.Context) (err error) {
if c.NArg() == 0 {
return missingArgumentsError(c, c.Command.ArgsUsage)
}
etlName := c.Args()[0]
if err := api.ETLStart(apiBP, etlName); err != nil {
if herr, ok := err.(*cmn.ErrHTTP); ok && herr.Status == http.StatusNotFound {
color.New(color.FgYellow).Fprintf(c.App.Writer, "ETL[%s] not found", etlName)
}
return V(err)
}
fmt.Fprintf(c.App.Writer, "ETL[%s] started successfully\n", etlName)
return nil
}
func etlObjectHandler(c *cli.Context) error {
if c.NArg() == 0 {
return missingArgumentsError(c, c.Command.ArgsUsage)
} else if c.NArg() == 1 {
return missingArgumentsError(c, c.Command.ArgsUsage)
} else if c.NArg() == 2 {
return missingArgumentsError(c, "OUTPUT")
}
var (
etlName = c.Args().Get(0)
uri = c.Args().Get(1)
outputDest = c.Args().Get(2)
)
bck, objName, errV := parseBckObjURI(c, uri, false)
if errV != nil {
return errV
}
var w io.Writer
if outputDest == "-" {
w = os.Stdout
} else if discardOutput(outputDest) {
w = io.Discard
} else {
f, err := os.Create(outputDest)
if err != nil {
return err
}
w = f
defer f.Close()
}
err := api.ETLObject(apiBP, etlName, bck, objName, w)
return handleETLHTTPError(err, etlName)
}