/
client_status.go
114 lines (95 loc) · 3.12 KB
/
client_status.go
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// Copyright 2020 Northern.tech AS
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package client
import (
"bytes"
"encoding/json"
"fmt"
"net/http"
"github.com/pkg/errors"
log "github.com/sirupsen/logrus"
)
const (
StatusInstalling = "installing"
StatusDownloading = "downloading"
StatusRebooting = "rebooting"
StatusSuccess = "success"
StatusFailure = "failure"
StatusAlreadyInstalled = "already-installed"
)
var (
ErrDeploymentAborted = errors.New("deployment was aborted")
)
type StatusReporter interface {
Report(api ApiRequester, server string, report StatusReport) error
}
type StatusReport struct {
DeploymentID string `json:"-"`
Status string `json:"status"`
SubState string `json:"substate,omitempty"`
}
// StatusReportWrapper holds the data that is passed to the
// statescript functions upon reporting script exectution-status
// to the backend.
type StatusReportWrapper struct {
Report StatusReport
API ApiRequester
URL string
}
type StatusClient struct {
}
func NewStatus() StatusReporter {
return &StatusClient{}
}
// Report status information to the backend
func (u *StatusClient) Report(api ApiRequester, url string, report StatusReport) error {
req, err := makeStatusReportRequest(url, report)
if err != nil {
return errors.Wrapf(err, "failed to prepare status report request")
}
r, err := api.Do(req)
if err != nil {
log.Error("Failed to report status: ", err)
return errors.Wrapf(err, "reporting status failed")
}
defer r.Body.Close()
// HTTP 204 No Content
switch {
case r.StatusCode == http.StatusConflict:
log.Warnf("Status report rejected, deployment aborted at the backend")
return NewAPIError(ErrDeploymentAborted, r)
case r.StatusCode != http.StatusNoContent:
log.Errorf("Got unexpected HTTP status when reporting status: %v", r.StatusCode)
return NewAPIError(errors.Errorf("reporting status failed, bad status %v", r.StatusCode), r)
}
log.Debugf("Status reported, response %s", r.Status)
return nil
}
func makeStatusReportRequest(server string, report StatusReport) (*http.Request, error) {
path := fmt.Sprintf("/deployments/device/deployments/%s/status",
report.DeploymentID)
url := buildApiURL(server, path)
out := &bytes.Buffer{}
enc := json.NewEncoder(out)
err := enc.Encode(&report)
if err != nil {
return nil, errors.Wrapf(err, "failed to encode status request data")
}
hreq, err := http.NewRequest(http.MethodPut, url, out)
if err != nil {
return nil, errors.Wrapf(err, "failed to create status HTTP request")
}
hreq.Header.Add("Content-Type", "application/json")
return hreq, nil
}