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notify.go
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notify.go
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package jiralert
import (
"bytes"
"context"
"fmt"
"io/ioutil"
"net/http"
"net/http/httputil"
"reflect"
"strings"
"github.com/andygrunwald/go-jira"
log "github.com/sirupsen/logrus"
"github.com/tixu/jiralert/alertmanager"
"github.com/trivago/tgo/tcontainer"
bolt "go.etcd.io/bbolt"
)
//github.com/andygrunwald/go-jira
// Receiver wraps a JIRA client corresponding to a specific Alertmanager receiver, with its configuration and templates.
type Receiver struct {
conf *ReceiverConfig
tmpl *Template
client *jira.Client
dbFile string
}
type StatusNotify struct {
Status int
Err error
}
type Notifier interface {
Notify(data *alertmanager.Data) map[string]StatusNotify
}
// NewReceiver creates a Receiver using the provided configuration and template.
func NewReceiver(context context.Context, a *APIConfig, c *ReceiverConfig, t *Template, file string) (*Receiver, error) {
client, err := jira.NewClient(http.DefaultClient, a.URL)
if err != nil {
return nil, err
}
client.Authentication.SetBasicAuth(a.User, string(a.Password))
return &Receiver{conf: c, tmpl: t, client: client,dbFile: file}, nil
}
func(r *Receiver) shutDown (){
}
// Notify implements the Notifier interface.
func (r *Receiver) Notify(context context.Context, data *alertmanager.Data) (map[string]StatusNotify, error) {
var m map[string]StatusNotify = make(map[string]StatusNotify)
project := r.tmpl.Execute(r.conf.Project, data)
// check errors from r.tmpl.Execute()
if r.tmpl.err != nil {
return nil, r.tmpl.err
}
log.Infof("looping on the alerts from the group")
// multipeErrors will be used to stock errors
// occuring while iterating on alarms
for _, alert := range data.Alerts {
// Looks like an ALERT metric name, with spaces removed.
issueLabel := toIssueLabel(alert.Labels)
issue, err := r.getIssue(issueLabel, project)
if err != nil {
log.Warnf("got an error while searching %s", err)
m[issueLabel] = StatusNotify{Status: http.StatusInternalServerError, Err: err}
continue
}
if issue != nil {
r.addComment(issue, r.tmpl.Execute(r.conf.Comment, alert))
// The set of JIRA status categories is fixed, this is a safe check to make.
if issue.Fields.Status.StatusCategory.Key != "done" {
// Issue is in a "to do" or "in progress" state, all done here.
log.Infof("Issue %s for %s is unresolved, nothing to do", issue.Key, issueLabel)
// nothing to be done on this issues
m[issueLabel] = StatusNotify{Status: http.StatusOK, Err: nil}
continue
}
if r.conf.WontFixResolution != "" && issue.Fields.Resolution != nil &&
issue.Fields.Resolution.Name == r.conf.WontFixResolution {
// Issue is resolved as "Won't Fix" or equivalent, log a message just in case.
log.Infof("Issue %s for %s is resolved as %q, not reopening", issue.Key, issueLabel, issue.Fields.Resolution.Name)
// nothing to be done on this issues
continue
}
log.Infof("Issue %s for %s was resolved, reopening", issue.Key, issueLabel)
if err := r.reopen(issue.Key); err != nil {
m[issueLabel] = StatusNotify{Status: http.StatusInternalServerError, Err: err}
}
m[issueLabel] = StatusNotify{Status: http.StatusOK, Err: nil}
continue
}
log.Infof("No issue matching %s found, creating new issue", issueLabel)
issue = &jira.Issue{
Fields: &jira.IssueFields{
Project: jira.Project{Key: project},
Type: jira.IssueType{Name: r.tmpl.Execute(r.conf.IssueType, data)},
Description: r.tmpl.Execute(r.conf.Description, alert),
Summary: r.tmpl.Execute(r.conf.Summary, alert),
Labels: []string{
issueLabel,
},
Unknowns: tcontainer.NewMarshalMap(),
},
}
log.Printf("issue.field %+v", issue.Fields)
if r.conf.Priority != "" {
issue.Fields.Priority = &jira.Priority{Name: r.conf.Priority}
}
// Add Components
if len(r.conf.Components) > 0 {
issue.Fields.Components = make([]*jira.Component, 0, len(r.conf.Components))
for _, component := range r.conf.Components {
issue.Fields.Components = append(issue.Fields.Components, &jira.Component{Name: component})
}
}
// Add Labels
if r.conf.AddGroupLabels {
for k, v := range data.GroupLabels {
issue.Fields.Labels = append(issue.Fields.Labels, fmt.Sprintf("%s=%q", k, v))
}
}
// check errors from r.tmpl.Execute()
if r.tmpl.err != nil {
m[issueLabel] = StatusNotify{Status: http.StatusInternalServerError, Err: r.tmpl.err}
continue
}
issue, err = r.create(issue)
log.Infof("issue %+v", issue)
if err != nil {
m[issueLabel] = StatusNotify{Status: http.StatusInternalServerError, Err: err}
continue
}
m[issueLabel] = StatusNotify{Status: http.StatusOK, Err: nil}
log.Infof("Issue created: key=%s ID=%s", issue.Key, issue.ID)
}
return m, nil
}
// deepCopyWithTemplate returns a deep copy of a map/slice/array/string/int/bool or combination thereof, executing the
// provided template (with the provided data) on all string keys or values. All maps are connverted to
// map[string]interface{}, with all non-string keys discarded.
func deepCopyWithTemplate(value interface{}, tmpl *Template, data interface{}) interface{} {
if value == nil {
return value
}
valueMeta := reflect.ValueOf(value)
switch valueMeta.Kind() {
case reflect.String:
return tmpl.Execute(value.(string), data)
case reflect.Array, reflect.Slice:
arrayLen := valueMeta.Len()
converted := make([]interface{}, arrayLen)
for i := 0; i < arrayLen; i++ {
converted[i] = deepCopyWithTemplate(valueMeta.Index(i).Interface(), tmpl, data)
}
return converted
case reflect.Map:
keys := valueMeta.MapKeys()
converted := make(map[string]interface{}, len(keys))
for _, keyMeta := range keys {
strKey, isString := keyMeta.Interface().(string)
if !isString {
continue
}
strKey = tmpl.Execute(strKey, data)
converted[strKey] = deepCopyWithTemplate(valueMeta.MapIndex(keyMeta).Interface(), tmpl, data)
}
return converted
default:
return value
}
}
// toIssueLabel returns the group labels in the form of an ALERT metric name, with all spaces removed.
func toIssueLabel(groupLabels alertmanager.KV) string {
buf := bytes.NewBufferString("ALERT{")
for _, p := range groupLabels.SortedPairs() {
buf.WriteString(p.Name)
buf.WriteString(fmt.Sprintf("=%q,", p.Value))
}
buf.Truncate(buf.Len() - 1)
buf.WriteString("}")
return strings.Replace(buf.String(), " ", "", -1)
}
func (r *Receiver) search(project, issueLabel string) (*jira.Issue, error) {
query := fmt.Sprintf("project=%s and labels=%q order by key", project, issueLabel)
options := &jira.SearchOptions{
Fields: []string{"summary", "status", "resolution"},
MaxResults: 50,
}
log.Infof("search: query=%v options=%+v", query, options)
issues, resp, err := r.client.Issue.Search(query, options)
if err != nil {
err := handleJiraError("Issue.Search", resp, err)
return nil, err
}
if len(issues) > 0 {
if len(issues) > 1 {
// Swallow it, but log an error.
log.Errorf("More than one issue matched %s, will only update first: %+v", query, issues)
}
log.Infof(" found: %+v", issues[0])
return &issues[0], nil
}
log.Infof(" no results")
return nil, nil
}
func (r *Receiver) addComment(issue *jira.Issue, commentstring string) error {
comment := &jira.Comment{Body: commentstring}
comment, _, err := r.client.Issue.AddComment(issue.ID, comment)
return err
}
func (r *Receiver) reopen(issueKey string) error {
transitions, resp, err := r.client.Issue.GetTransitions(issueKey)
if err != nil {
return handleJiraError("Issue.GetTransitions", resp, err)
}
for _, t := range transitions {
if t.Name == r.conf.ReopenState {
log.Infof("reopen: issueKey=%v transitionID=%v", issueKey, t.ID)
resp, err = r.client.Issue.DoTransition(issueKey, t.ID)
if err != nil {
return handleJiraError("Issue.DoTransition", resp, err)
}
log.Infof(" done")
return nil
}
}
return fmt.Errorf("JIRA state %q does not exist or no transition possible for %s", r.conf.ReopenState, issueKey)
}
func (r *Receiver) create(issue *jira.Issue) (*jira.Issue, error) {
log.Infof("create: issue=%+v", *issue)
issue, resp, err := r.client.Issue.Create(issue)
if err != nil {
return nil, handleJiraError("Issue.Create", resp, err)
}
log.Infof(" done: key=%s ID=%s", issue.Key, issue.ID)
return issue, nil
}
func (r *Receiver) getIssue(issueLabel, project string) (*jira.Issue, error) {
db, err := bolt.Open(r.dbFile, 0600, nil)
if err != nil {
log.Fatal(err)
}
defer db.Close()
log.Infof("getting issue with label : %s", issueLabel)
var id string
err = db.View(func(tx *bolt.Tx) error {
bk := tx.Bucket([]byte("JIRA"))
bs := bk.Get([]byte(issueLabel))
if bs == nil {
return fmt.Errorf("issue not found locally")
}
id = string(bs)
log.Infof("local ID is %s", id)
return nil
})
if len(id) == 0 {
// we did not find anything
issue, err := r.search(project, issueLabel)
if err != nil {
log.Warnf("got an error while searching %s", err)
return nil, err
}
if issue == nil {
return nil, nil
} // we found something
err = db.Update(func(tx *bolt.Tx) error {
bk := tx.Bucket([]byte("JIRA"))
return bk.Put([]byte(issueLabel), []byte(issue.ID))
})
//we return the issue after updating the db
return issue, nil
}
issue, _, err := r.client.Issue.Get(id, nil)
if err != nil {
log.Infof("got an error while getting the issue by id %s", err )
issue, err := r.search(project, issueLabel)
if err != nil {
log.Warnf("got an error while searching %s", err)
return nil, err
}
if issue != nil {// we found something
err = db.Update(func(tx *bolt.Tx) error {
bk, err := tx.CreateBucketIfNotExists([]byte("JIRA"))
if err != nil {
return err
}
return bk.Put([]byte(issueLabel), []byte(issue.ID))
})
}
//we return the issue after updating the db
return issue, nil
}
return issue, nil
}
func handleJiraError(api string, resp *jira.Response, err error) error {
if resp == nil || resp.Request == nil {
log.Infof("handleJiraError: api=%s, err=%s", api, err)
} else {
log.Infof("handleJiraError: api=%s, url=%s, err=%s", api, resp.Request.URL, err)
}
if resp != nil && resp.StatusCode/100 != 2 {
body, _ := ioutil.ReadAll(resp.Body)
requestDump, err := httputil.DumpRequest(resp.Request, false)
if err != nil {
fmt.Println(err)
}
fmt.Println(string(requestDump))
// go-jira error message is not particularly helpful, replace it
return fmt.Errorf("JIRA request %s returned status %s, body %q", resp.Request.URL, resp.Status, string(body))
}
return fmt.Errorf("JIRA request %s failed: %s", api, err)
}