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rewrite sentry to support info messages
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "crypto/sha256" | ||
| "encoding/hex" | ||
| "fmt" | ||
| "hash" | ||
| "io" | ||
| "os" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "github.com/getsentry/sentry-go" | ||
| ) | ||
|
|
||
| type ( | ||
| Reporter struct { | ||
| sentryDSN string | ||
| start time.Time | ||
| hostname string | ||
| cmd string | ||
| hash hash.Hash | ||
|
|
||
| combined *bytes.Buffer | ||
| stderr *bytes.Buffer | ||
| } | ||
| ) | ||
|
|
||
| // newReporter creates a new Sentry client | ||
| func newReporter(cr *CmdRequest) (*Reporter, error) { | ||
| sentryDSN, ok := os.LookupEnv("CRONGUARD_SENTRY_DSN") | ||
| if !ok && cr.Config != nil { | ||
| sentryDSN = cr.Config.SentryDSN | ||
| } | ||
| if sentryDSN == "" { | ||
| return nil, fmt.Errorf("no config provided") | ||
| } | ||
|
|
||
| // data | ||
| hostname, _ := os.Hostname() | ||
| if hostname == "" { | ||
| hostname = "no-hostname" | ||
| } | ||
| hostname = strings.SplitN(hostname, ".", 2)[0] | ||
| hash := sha256.New() | ||
| hash.Write([]byte(cr.Command)) | ||
| hash.Write([]byte(hostname)) | ||
| cmd := cr.Command | ||
| if len(cmd) > 32 { | ||
| cmd = fmt.Sprintf("%s%s", cmd[0:30], "...") | ||
| } | ||
|
|
||
| // setup sentry | ||
| sentryErr := sentry.Init(sentry.ClientOptions{ | ||
| Dsn: sentryDSN, | ||
| Transport: sentry.NewHTTPSyncTransport(), | ||
| }) | ||
| if sentryErr != nil { | ||
| fmt.Fprintf(cr.Status.Stderr, "cronguard: unable to connect to sentry: %s\n", sentryErr) | ||
| fmt.Fprintf(cr.Status.Stderr, "cronguard: running cron anyways\n") | ||
| return nil, fmt.Errorf("unable to connect to sentry") | ||
| } | ||
|
|
||
| // wrap buffers | ||
| start := time.Now() | ||
| combined := bytes.NewBuffer([]byte{}) | ||
| stderr := bytes.NewBuffer([]byte{}) | ||
| cr.Status.Stderr = io.MultiWriter(stderr, combined, cr.Status.Stderr) | ||
| cr.Status.Stdout = io.MultiWriter(combined, cr.Status.Stdout) | ||
|
|
||
| // set known sentry extras | ||
| sentry.ConfigureScope(func(scope *sentry.Scope) { | ||
| scope.SetExtra("time_start", start) | ||
| scope.SetExtra("command", cr.Command) | ||
| }) | ||
|
|
||
| return &Reporter{ | ||
| sentryDSN: sentryDSN, | ||
| start: start, | ||
| hostname: hostname, | ||
| cmd: cmd, | ||
| hash: hash, | ||
| combined: combined, | ||
| stderr: stderr, | ||
| }, nil | ||
| } | ||
|
|
||
| // Finish reports the final status to sentry if err != nil | ||
| func (r *Reporter) Finish(err error) error { | ||
| if err == nil { | ||
| return nil | ||
| } | ||
| return r.report(err, finishLevel) | ||
| } | ||
|
|
||
| // Info reports a Info status to sentry | ||
| func (r *Reporter) Info(err error) error { | ||
| return r.report(err, infoLevel) | ||
| } | ||
|
|
||
| // reportLevel is used by reporter to disingques | ||
| type reportLevel = string | ||
|
|
||
| const ( | ||
| // infoLevel is an information that will be send to sentry | ||
| infoLevel reportLevel = "info" | ||
| // finishLevel is used to tell the reporter that the cron has finished | ||
| finishLevel = "finish" | ||
| ) | ||
|
|
||
| // report reports any error message to sentry | ||
| func (r *Reporter) report(err error, level reportLevel) error { | ||
| // prepare sentry information | ||
| name := "" | ||
| extra := map[string]interface{}{} | ||
| if level == finishLevel { | ||
| name = fmt.Sprintf("%s: %s (%s)", r.hostname, r.cmd, err.Error()) | ||
| extra["time_end"] = time.Now() | ||
| extra["time_duration"] = time.Since(r.start).String() | ||
| extra["out_combined"] = r.combined.String() | ||
| extra["out_stderr"] = r.stderr.String() | ||
| } else { | ||
| name = fmt.Sprintf("%s (%s): %s (%s)", r.hostname, level, r.cmd, err.Error()) | ||
| } | ||
|
|
||
| // sentry | ||
| hash := hex.EncodeToString(r.hash.Sum([]byte(level))) | ||
| sentry.ConfigureScope(func(scope *sentry.Scope) { | ||
| scope.SetFingerprint([]string{hash}) | ||
| scope.SetExtras(extra) | ||
| }) | ||
| _ = sentry.CaptureMessage(name) | ||
|
|
||
| // hide error if messages are successfully flushed to sentry | ||
| flushed := sentry.Flush(30 * time.Second) | ||
| if !flushed { | ||
| return err | ||
| } | ||
| return nil | ||
| } |