ceph/src/pybind/mgr/dashboard/frontend/src/app/ceph/cluster/prometheus/silence-form/silence-form.component.ts

   1 import { Component } from '@angular/core';
   2 import { Validators } from '@angular/forms';
   3 import { ActivatedRoute, Router } from '@angular/router';
   4
   5 import _ from 'lodash';
   6 import moment from 'moment';
   7
   8 import { DashboardNotFoundError } from '~/app/core/error/error';
   9 import { PrometheusService } from '~/app/shared/api/prometheus.service';
  10 import { ActionLabelsI18n, SucceededActionLabelsI18n } from '~/app/shared/constants/app.constants';
  11 import { Icons } from '~/app/shared/enum/icons.enum';
  12 import { NotificationType } from '~/app/shared/enum/notification-type.enum';
  13 import { CdFormBuilder } from '~/app/shared/forms/cd-form-builder';
  14 import { CdFormGroup } from '~/app/shared/forms/cd-form-group';
  15 import { CdValidators } from '~/app/shared/forms/cd-validators';
  16 import {
  17   AlertmanagerSilence,
  18   AlertmanagerSilenceMatcher,
  19   AlertmanagerSilenceMatcherMatch
  20 } from '~/app/shared/models/alertmanager-silence';
  21 import { Permission } from '~/app/shared/models/permissions';
  22 import { AlertmanagerAlert, PrometheusRule } from '~/app/shared/models/prometheus-alerts';
  23 import { AuthStorageService } from '~/app/shared/services/auth-storage.service';
  24 import { ModalService } from '~/app/shared/services/modal.service';
  25 import { NotificationService } from '~/app/shared/services/notification.service';
  26 import { PrometheusSilenceMatcherService } from '~/app/shared/services/prometheus-silence-matcher.service';
  27 import { TimeDiffService } from '~/app/shared/services/time-diff.service';
  28 import { SilenceMatcherModalComponent } from '../silence-matcher-modal/silence-matcher-modal.component';
  29
  30 @Component({
  31   selector: 'cd-prometheus-form',
  32   templateUrl: './silence-form.component.html',
  33   styleUrls: ['./silence-form.component.scss']
  34 })
  35 export class SilenceFormComponent {
  36   icons = Icons;
  37   permission: Permission;
  38   form: CdFormGroup;
  39   rules: PrometheusRule[];
  40
  41   recreate = false;
  42   edit = false;
  43   id: string;
  44
  45   action: string;
  46   resource = $localize`silence`;
  47
  48   matchers: AlertmanagerSilenceMatcher[] = [];
  49   matcherMatch: AlertmanagerSilenceMatcherMatch = undefined;
  50   matcherConfig = [
  51     {
  52       tooltip: $localize`Attribute name`,
  53       icon: this.icons.paragraph,
  54       attribute: 'name'
  55     },
  56     {
  57       tooltip: $localize`Value`,
  58       icon: this.icons.terminal,
  59       attribute: 'value'
  60     },
  61     {
  62       tooltip: $localize`Regular expression`,
  63       icon: this.icons.magic,
  64       attribute: 'isRegex'
  65     }
  66   ];
  67
  68   datetimeFormat = 'YYYY-MM-DD HH:mm';
  69
  70   constructor(
  71     private router: Router,
  72     private authStorageService: AuthStorageService,
  73     private formBuilder: CdFormBuilder,
  74     private prometheusService: PrometheusService,
  75     private notificationService: NotificationService,
  76     private route: ActivatedRoute,
  77     private timeDiff: TimeDiffService,
  78     private modalService: ModalService,
  79     private silenceMatcher: PrometheusSilenceMatcherService,
  80     private actionLabels: ActionLabelsI18n,
  81     private succeededLabels: SucceededActionLabelsI18n
  82   ) {
  83     this.init();
  84   }
  85
  86   private init() {
  87     this.chooseMode();
  88     this.authenticate();
  89     this.createForm();
  90     this.setupDates();
  91     this.getData();
  92   }
  93
  94   private chooseMode() {
  95     this.edit = this.router.url.startsWith('/monitoring/silences/edit');
  96     this.recreate = this.router.url.startsWith('/monitoring/silences/recreate');
  97     if (this.edit) {
  98       this.action = this.actionLabels.EDIT;
  99     } else if (this.recreate) {
 100       this.action = this.actionLabels.RECREATE;
 101     } else {
 102       this.action = this.actionLabels.CREATE;
 103     }
 104   }
 105
 106   private authenticate() {
 107     this.permission = this.authStorageService.getPermissions().prometheus;
 108     const allowed =
 109       this.permission.read && (this.edit ? this.permission.update : this.permission.create);
 110     if (!allowed) {
 111       throw new DashboardNotFoundError();
 112     }
 113   }
 114
 115   private createForm() {
 116     const formatValidator = CdValidators.custom('format', (expiresAt: string) => {
 117       const result = expiresAt === '' || moment(expiresAt, this.datetimeFormat).isValid();
 118       return !result;
 119     });
 120     this.form = this.formBuilder.group(
 121       {
 122         startsAt: ['', [Validators.required, formatValidator]],
 123         duration: ['2h', [Validators.min(1)]],
 124         endsAt: ['', [Validators.required, formatValidator]],
 125         createdBy: [this.authStorageService.getUsername(), [Validators.required]],
 126         comment: [null, [Validators.required]]
 127       },
 128       {
 129         validators: CdValidators.custom('matcherRequired', () => this.matchers.length === 0)
 130       }
 131     );
 132   }
 133
 134   private setupDates() {
 135     const now = moment().format(this.datetimeFormat);
 136     this.form.silentSet('startsAt', now);
 137     this.updateDate();
 138     this.subscribeDateChanges();
 139   }
 140
 141   private updateDate(updateStartDate?: boolean) {
 142     const date = moment(
 143       this.form.getValue(updateStartDate ? 'endsAt' : 'startsAt'),
 144       this.datetimeFormat
 145     ).toDate();
 146     const next = this.timeDiff.calculateDate(date, this.form.getValue('duration'), updateStartDate);
 147     if (next) {
 148       const nextDate = moment(next).format(this.datetimeFormat);
 149       this.form.silentSet(updateStartDate ? 'startsAt' : 'endsAt', nextDate);
 150     }
 151   }
 152
 153   private subscribeDateChanges() {
 154     this.form.get('startsAt').valueChanges.subscribe(() => {
 155       this.onDateChange();
 156     });
 157     this.form.get('duration').valueChanges.subscribe(() => {
 158       this.updateDate();
 159     });
 160     this.form.get('endsAt').valueChanges.subscribe(() => {
 161       this.onDateChange(true);
 162     });
 163   }
 164
 165   private onDateChange(updateStartDate?: boolean) {
 166     const startsAt = moment(this.form.getValue('startsAt'), this.datetimeFormat);
 167     const endsAt = moment(this.form.getValue('endsAt'), this.datetimeFormat);
 168     if (startsAt.isBefore(endsAt)) {
 169       this.updateDuration();
 170     } else {
 171       this.updateDate(updateStartDate);
 172     }
 173   }
 174
 175   private updateDuration() {
 176     const startsAt = moment(this.form.getValue('startsAt'), this.datetimeFormat).toDate();
 177     const endsAt = moment(this.form.getValue('endsAt'), this.datetimeFormat).toDate();
 178     this.form.silentSet('duration', this.timeDiff.calculateDuration(startsAt, endsAt));
 179   }
 180
 181   private getData() {
 182     this.getRules();
 183     this.getModeSpecificData();
 184   }
 185
 186   private getRules() {
 187     this.prometheusService.ifPrometheusConfigured(
 188       () =>
 189         this.prometheusService.getRules().subscribe(
 190           (groups) => {
 191             this.rules = groups['groups'].reduce(
 192               (acc, group) => _.concat<PrometheusRule>(acc, group.rules),
 193               []
 194             );
 195           },
 196           () => {
 197             this.prometheusService.disablePrometheusConfig();
 198             this.rules = [];
 199           }
 200         ),
 201       () => {
 202         this.rules = [];
 203         this.notificationService.show(
 204           NotificationType.info,
 205           $localize`Please add your Prometheus host to the dashboard configuration and refresh the page`,
 206           undefined,
 207           undefined,
 208           'Prometheus'
 209         );
 210       }
 211     );
 212   }
 213
 214   private getModeSpecificData() {
 215     this.route.params.subscribe((params: { id: string }) => {
 216       if (!params.id) {
 217         return;
 218       }
 219       if (this.edit || this.recreate) {
 220         this.prometheusService.getSilences().subscribe((silences) => {
 221           const silence = _.find(silences, ['id', params.id]);
 222           if (!_.isUndefined(silence)) {
 223             this.fillFormWithSilence(silence);
 224           }
 225         });
 226       } else {
 227         this.prometheusService.getAlerts().subscribe((alerts) => {
 228           const alert = _.find(alerts, ['fingerprint', params.id]);
 229           if (!_.isUndefined(alert)) {
 230             this.fillFormByAlert(alert);
 231           }
 232         });
 233       }
 234     });
 235   }
 236
 237   private fillFormWithSilence(silence: AlertmanagerSilence) {
 238     this.id = silence.id;
 239     if (this.edit) {
 240       ['startsAt', 'endsAt'].forEach((attr) =>
 241         this.form.silentSet(attr, moment(silence[attr]).format(this.datetimeFormat))
 242       );
 243       this.updateDuration();
 244     }
 245     ['createdBy', 'comment'].forEach((attr) => this.form.silentSet(attr, silence[attr]));
 246     this.matchers = silence.matchers;
 247     this.validateMatchers();
 248   }
 249
 250   private validateMatchers() {
 251     if (!this.rules) {
 252       window.setTimeout(() => this.validateMatchers(), 100);
 253       return;
 254     }
 255     this.matcherMatch = this.silenceMatcher.multiMatch(this.matchers, this.rules);
 256     this.form.markAsDirty();
 257     this.form.updateValueAndValidity();
 258   }
 259
 260   private fillFormByAlert(alert: AlertmanagerAlert) {
 261     const labels = alert.labels;
 262     Object.keys(labels).forEach((key) =>
 263       this.setMatcher({
 264         name: key,
 265         value: labels[key],
 266         isRegex: false
 267       })
 268     );
 269   }
 270
 271   private setMatcher(matcher: AlertmanagerSilenceMatcher, index?: number) {
 272     if (_.isNumber(index)) {
 273       this.matchers[index] = matcher;
 274     } else {
 275       this.matchers.push(matcher);
 276     }
 277     this.validateMatchers();
 278   }
 279
 280   showMatcherModal(index?: number) {
 281     const modalRef = this.modalService.show(SilenceMatcherModalComponent);
 282     const modalComponent = modalRef.componentInstance as SilenceMatcherModalComponent;
 283     modalComponent.rules = this.rules;
 284     if (_.isNumber(index)) {
 285       modalComponent.editMode = true;
 286       modalComponent.preFillControls(this.matchers[index]);
 287     }
 288     modalComponent.submitAction.subscribe((matcher: AlertmanagerSilenceMatcher) => {
 289       this.setMatcher(matcher, index);
 290     });
 291   }
 292
 293   deleteMatcher(index: number) {
 294     this.matchers.splice(index, 1);
 295     this.validateMatchers();
 296   }
 297
 298   submit() {
 299     if (this.form.invalid) {
 300       return;
 301     }
 302     this.prometheusService.setSilence(this.getSubmitData()).subscribe(
 303       (resp) => {
 304         this.router.navigate(['/monitoring/silences']);
 305         this.notificationService.show(
 306           NotificationType.success,
 307           this.getNotificationTile(resp.body['silenceId']),
 308           undefined,
 309           undefined,
 310           'Prometheus'
 311         );
 312       },
 313       () => this.form.setErrors({ cdSubmitButton: true })
 314     );
 315   }
 316
 317   private getSubmitData(): AlertmanagerSilence {
 318     const payload = this.form.value;
 319     delete payload.duration;
 320     payload.startsAt = moment(payload.startsAt, this.datetimeFormat).toISOString();
 321     payload.endsAt = moment(payload.endsAt, this.datetimeFormat).toISOString();
 322     payload.matchers = this.matchers;
 323     if (this.edit) {
 324       payload.id = this.id;
 325     }
 326     return payload;
 327   }
 328
 329   private getNotificationTile(id: string) {
 330     let action;
 331     if (this.edit) {
 332       action = this.succeededLabels.EDITED;
 333     } else if (this.recreate) {
 334       action = this.succeededLabels.RECREATED;
 335     } else {
 336       action = this.succeededLabels.CREATED;
 337     }
 338     return `${action} ${this.resource} ${id}`;
 339   }
 340 }