Golang Action.LastUpdateTime方法代码示例

// invalidAction marks actions that have failed to run
func invalidAction(ctx Context, a mig.Action, origin string) (err error) {
	defer func() {
		if e := recover(); e != nil {
			err = fmt.Errorf("invalidAction() -> %v", e)
		}
		ctx.Channels.Log <- mig.Log{ActionID: a.ID, Desc: "leaving invalidAction()"}.Debug()
	}()
	// move action to invalid dir
	jsonA, err := json.Marshal(a)
	if err != nil {
		panic(err)
	}
	dest := fmt.Sprintf("%s/%.0f.json", ctx.Directories.Action.Invalid, a.ID)
	err = safeWrite(ctx, dest, jsonA)
	if err != nil {
		panic(err)
	}
	// remove the action from its origin
	os.Remove(origin)
	if err != nil {
		panic(err)
	}
	a.Status = "invalid"
	a.LastUpdateTime = time.Now().UTC()
	a.FinishTime = time.Now().UTC()
	a.Counters.Sent = 0
	err = ctx.DB.UpdateAction(a)
	if err != nil {
		panic(err)
	}
	desc := fmt.Sprintf("invalidAction(): Action '%s' has been marked as invalid.", a.Name)
	ctx.Channels.Log <- mig.Log{OpID: ctx.OpID, ActionID: a.ID, Desc: desc}.Debug()
	return
}

// updateAction is called with an array of commands that have finished
// Each action that needs updating is processed in a way that reduce IOs
func updateAction(cmds []mig.Command, ctx Context) (err error) {
	defer func() {
		if e := recover(); e != nil {
			err = fmt.Errorf("updateAction() -> %v", e)
		}
		ctx.Channels.Log <- mig.Log{OpID: ctx.OpID, Desc: "leaving updateAction()"}.Debug()
	}()

	// there may be multiple actions to update, since commands can be mixed,
	// so we keep a map of actions
	actions := make(map[float64]mig.Action)

	for _, cmd := range cmds {
		var a mig.Action
		// retrieve the action from the DB if we don't already have it mapped
		a, ok := actions[cmd.Action.ID]
		if !ok {
			a, err = ctx.DB.ActionMetaByID(cmd.Action.ID)
			if err != nil {
				panic(err)
			}
		}
		a.LastUpdateTime = time.Now().UTC()

		// store action in the map
		actions[a.ID] = a

		// slightly unrelated to updating the action:
		// in case the action is about upgrading agents, do some magical stuff
		// to continue the upgrade protocol
		if cmd.Status == mig.StatusSuccess && len(a.Operations) > 0 {
			if a.Operations[0].Module == "upgrade" {
				go markUpgradedAgents(cmd, ctx)
			}
		}
	}
	for _, a := range actions {
		a.Counters, err = ctx.DB.GetActionCounters(a.ID)
		if err != nil {
			panic(err)
		}
		// Has the action completed?
		if a.Counters.Done == a.Counters.Sent {
			err = landAction(ctx, a)
			if err != nil {
				panic(err)
			}
			// delete Action from ctx.Directories.Action.InFlight
			actFile := fmt.Sprintf("%.0f.json", a.ID)
			os.Rename(ctx.Directories.Action.InFlight+"/"+actFile, ctx.Directories.Action.Done+"/"+actFile)
		} else {
			// store updated action in database
			err = ctx.DB.UpdateRunningAction(a)
			if err != nil {
				panic(err)
			}
			desc := fmt.Sprintf("updated action '%s': progress=%d/%d, success=%d, cancelled=%d, expired=%d, failed=%d, timeout=%d, duration=%s",
				a.Name, a.Counters.Done, a.Counters.Sent, a.Counters.Success, a.Counters.Cancelled, a.Counters.Expired,
				a.Counters.Failed, a.Counters.TimeOut, a.LastUpdateTime.Sub(a.StartTime).String())
			ctx.Channels.Log <- mig.Log{OpID: ctx.OpID, ActionID: a.ID, Desc: desc}
		}
	}
	return
}

// createAction receives a signed action in a POST request, validates it,
// and write it into the scheduler spool
func createAction(respWriter http.ResponseWriter, request *http.Request) {
	var (
		err    error
		action mig.Action
	)
	opid := getOpID(request)
	loc := fmt.Sprintf("%s%s", ctx.Server.Host, request.URL.String())
	resource := cljs.New(loc)
	defer func() {
		if e := recover(); e != nil {
			ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: fmt.Sprintf("%v", e)}.Err()
			resource.SetError(cljs.Error{Code: fmt.Sprintf("%.0f", opid), Message: fmt.Sprintf("%v", e)})
			respond(500, resource, respWriter, request)
		}
		ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: "leaving createAction()"}.Debug()
	}()

	// parse the POST body into a mig action
	err = request.ParseForm()
	if err != nil {
		panic(err)
	}
	postAction := request.FormValue("action")
	err = json.Unmarshal([]byte(postAction), &action)
	if err != nil {
		panic(err)
	}
	ctx.Channels.Log <- mig.Log{OpID: opid, Desc: fmt.Sprintf("Received action for creation '%s'", action)}.Debug()

	// Init action fields
	action.ID = mig.GenID()
	date0 := time.Date(0011, time.January, 11, 11, 11, 11, 11, time.UTC)
	date1 := time.Date(9998, time.January, 11, 11, 11, 11, 11, time.UTC)
	action.StartTime = date0
	action.FinishTime = date1
	action.LastUpdateTime = date0
	action.Status = "pending"

	// load keyring and validate action
	keyring, err := getKeyring()
	if err != nil {
		panic(err)
	}

	err = action.Validate()
	if err != nil {
		panic(err)
	}
	err = action.VerifySignatures(keyring)
	if err != nil {
		panic(err)
	}
	ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: "Received new action with valid signature"}

	// write action to database
	err = ctx.DB.InsertAction(action)
	if err != nil {
		panic(err)
	}
	// write signatures to database
	astr, err := action.String()
	if err != nil {
		panic(err)
	}
	for _, sig := range action.PGPSignatures {
		k, err := getKeyring()
		if err != nil {
			panic(err)
		}
		fp, err := pgp.GetFingerprintFromSignature(astr, sig, k)
		if err != nil {
			panic(err)
		}
		inv, err := ctx.DB.InvestigatorByFingerprint(fp)
		if err != nil {
			panic(err)
		}
		err = ctx.DB.InsertSignature(action.ID, inv.ID, sig)
		if err != nil {
			panic(err)
		}
	}
	ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: "Action written to database"}
	err = resource.AddItem(cljs.Item{
		Href: fmt.Sprintf("%s/action?actionid=%.0f", ctx.Server.BaseURL, action.ID),
		Data: []cljs.Data{{Name: "action ID " + fmt.Sprintf("%.0f", action.ID), Value: action}},
	})
	if err != nil {
		panic(err)
	}
	// return a 202 Accepted. the action will be processed asynchronously, and may fail later.
	respond(202, resource, respWriter, request)
}

// updateAction is called with an array of commands that have finished
// Each action that needs updating is processed in a way that reduce IOs
func updateAction(cmds []mig.Command, ctx Context) (err error) {
	defer func() {
		if e := recover(); e != nil {
			err = fmt.Errorf("updateAction() -> %v", e)
		}
		ctx.Channels.Log <- mig.Log{OpID: ctx.OpID, Desc: "leaving updateAction()"}.Debug()
	}()

	// there may be multiple actions to update, since commands can be mixed,
	// so we keep a map of actions
	actions := make(map[float64]mig.Action)

	for _, cmd := range cmds {
		var a mig.Action
		// retrieve the action from the DB if we don't already have it mapped
		a, ok := actions[cmd.Action.ID]
		if !ok {
			a, err = ctx.DB.ActionMetaByID(cmd.Action.ID)
			if err != nil {
				panic(err)
			}
		}
		// there is only one entry in the slice, so take the first entry from
		switch cmd.Status {
		case "done":
			a.Counters.Done++
		case "cancelled":
			a.Counters.Cancelled++
		case "failed":
			a.Counters.Failed++
		case "timeout":
			a.Counters.TimeOut++
		default:
			err = fmt.Errorf("unknown command status: %s", cmd.Status)
			panic(err)
		}
		// regardless of returned status, increase completion counter
		a.Counters.Returned++
		a.LastUpdateTime = time.Now().UTC()

		// store action in the map
		actions[a.ID] = a

		// in case the action is related to upgrading agents, go do stuff
		if cmd.Status == "done" {
			go markUpgradedAgents(cmd, ctx)
		}
	}
	for _, a := range actions {
		// Has the action completed?
		if a.Counters.Returned == a.Counters.Sent {
			err = landAction(ctx, a)
			if err != nil {
				panic(err)
			}
			// delete Action from ctx.Directories.Action.InFlight
			actFile := fmt.Sprintf("%.0f.json", a.ID)
			os.Rename(ctx.Directories.Action.InFlight+"/"+actFile, ctx.Directories.Action.Done+"/"+actFile)
		} else {
			// store updated action in database
			err = ctx.DB.UpdateRunningAction(a)
			if err != nil {
				panic(err)
			}
			desc := fmt.Sprintf("updated action '%s': completion=%d/%d, done=%d, cancelled=%d, failed=%d, timeout=%d, duration=%s",
				a.Name, a.Counters.Returned, a.Counters.Sent, a.Counters.Done,
				a.Counters.Cancelled, a.Counters.Failed, a.Counters.TimeOut, a.LastUpdateTime.Sub(a.StartTime).String())
			ctx.Channels.Log <- mig.Log{OpID: ctx.OpID, ActionID: a.ID, Desc: desc}
		}
	}
	return
}

// createAction receives a signed action in a POST request, validates it,
// and write it into the scheduler spool
func createAction(respWriter http.ResponseWriter, request *http.Request) {
	var err error
	opid := mig.GenID()
	var action mig.Action
	loc := fmt.Sprintf("http://%s:%d%s", ctx.Server.IP, ctx.Server.Port, request.URL.String())
	resource := cljs.New(loc)
	defer func() {
		if e := recover(); e != nil {
			ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: fmt.Sprintf("%v", e)}.Err()
			resource.SetError(cljs.Error{Code: fmt.Sprintf("%.0f", opid), Message: fmt.Sprintf("%v", e)})
			respond(500, resource, respWriter, request, opid)
		}
		ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: "leaving createAction()"}.Debug()
	}()

	// parse the POST body into a mig action
	request.ParseForm()
	postAction := request.FormValue("action")
	err = json.Unmarshal([]byte(postAction), &action)
	if err != nil {
		panic(err)
	}
	ctx.Channels.Log <- mig.Log{OpID: opid, Desc: fmt.Sprintf("Received action for creation '%s'", action)}.Debug()

	// Init action fields
	action.ID = mig.GenID()
	date0 := time.Date(9998, time.January, 11, 11, 11, 11, 11, time.UTC)
	action.StartTime = date0
	action.FinishTime = date0
	action.LastUpdateTime = date0
	action.Status = "init"

	// load keyring and validate action
	keyring, err := os.Open(ctx.PGP.Home + "/pubring.gpg")
	if err != nil {
		panic(err)
	}
	defer keyring.Close()

	err = action.Validate()
	if err != nil {
		panic(err)
	}
	err = action.VerifySignatures(keyring)
	if err != nil {
		panic(err)
	}
	ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: "Received new action with valid signature"}

	// write action to database
	err = ctx.DB.InsertAction(action)
	if err != nil {
		panic(err)
	}
	// write signatures to database
	astr, err := action.String()
	if err != nil {
		panic(err)
	}
	for _, sig := range action.PGPSignatures {
		// TODO: opening the keyring in a loop is really ugly. rewind!
		k, err := os.Open(ctx.PGP.Home + "/pubring.gpg")
		if err != nil {
			panic(err)
		}
		defer k.Close()
		fp, err := pgp.GetFingerprintFromSignature(astr, sig, k)
		if err != nil {
			panic(err)
		}
		iid, err := ctx.DB.InvestigatorByFingerprint(fp)
		if err != nil {
			panic(err)
		}
		err = ctx.DB.InsertSignature(action.ID, iid, sig)
		if err != nil {
			panic(err)
		}
	}
	ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: "Action written to database"}

	// write action to disk
	destdir := fmt.Sprintf("%s/%.0f.json", ctx.Directories.Action.New, action.ID)
	newAction, err := json.Marshal(action)
	if err != nil {
		panic(err)
	}
	err = ioutil.WriteFile(destdir, newAction, 0640)
	if err != nil {
		panic(err)
	}
	ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: "Action committed to spool"}

	err = resource.AddItem(cljs.Item{
		Href: fmt.Sprintf("%s/action?actionid=%.0f", ctx.Server.BaseURL, action.ID),
		Data: []cljs.Data{{Name: "action ID " + fmt.Sprintf("%.0f", action.ID), Value: action}},
	})
	if err != nil {
//.........这里部分代码省略.........