prometheus/alertmanager

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Prometheus Alertmanager

Stars: 8.6k
Forks: 2.5k
Open beginner issues: 0
Indexed issues: 334
Avg merge: 2d 6h
Merged PRs (30d): 61

Dominant language: Go
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted hacktoberfest

Beginner friendly Everything

Open All

334 open issues indexed

Missing distroless tag on releases Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

prometheus/alertmanager#5570 · Opened Sep 17, 2026
Alertmanager not supported other slack compatibility config (Mattermost) Open

kind/support

Difficulty 3/5 1-2 days Newbie friendliness 52/100

prometheus/alertmanager#5557 · 1 comment · Opened Sep 14, 2026
UI: add notification observability when NotificationService is defined Open

component/api component/notify component/ui kind/enhancement

prometheus/alertmanager#5494 · 1 assignee · Opened Aug 29, 2026
UI: add parity, accessibility, performance, and release conformance Open

component/ui kind/enhancement

prometheus/alertmanager#5493 · 1 assignee · Opened Aug 29, 2026
UI: consume v3alpha watch streams for live updates Open

component/api component/ui kind/enhancement

prometheus/alertmanager#5492 · 1 assignee · Opened Aug 29, 2026
UI: implement the full Silence lifecycle with SilenceService Open

component/api component/silences component/ui kind/enhancement

prometheus/alertmanager#5491 · 1 assignee · Opened Aug 29, 2026
UI: implement Alerts and alert groups with v3alpha services Open

component/api component/ui kind/enhancement

prometheus/alertmanager#5490 · 1 assignee · Opened Aug 29, 2026
UI: integrate StatusService and configuration pages Open

component/api component/ui kind/enhancement

prometheus/alertmanager#5489 · 1 assignee · Opened Aug 29, 2026
UI: implement the accessible application shell, theme, and settings Open

component/ui kind/enhancement

prometheus/alertmanager#5488 · 1 assignee · Opened Aug 29, 2026
UI: generate Connect TypeScript clients and establish the data layer Open

component/api component/ui kind/enhancement

prometheus/alertmanager#5487 · 1 assignee · Opened Aug 29, 2026
UI: build and serve the Mantine application at /ui/ Open

component/ui kind/enhancement

prometheus/alertmanager#5486 · 1 comment · 1 assignee · Opened Aug 29, 2026
API v3alpha: documentation, conformance, and final hardening Open

component/api kind/documentation

prometheus/alertmanager#5485 · 1 comment · 1 assignee · Opened Aug 29, 2026
API v3alpha: NotificationService Open

component/api component/nflog component/notify kind/design

prometheus/alertmanager#5484 · 1 comment · 1 assignee · Opened Aug 29, 2026
API v3alpha: ReceiverService Open

component/api component/config kind/enhancement

prometheus/alertmanager#5483 · 1 comment · 1 assignee · Opened Aug 29, 2026
API v3alpha: SilenceService Open

component/api component/silences kind/enhancement

prometheus/alertmanager#5482 · 1 comment · 1 assignee · Opened Aug 29, 2026
API v3alpha: AlertService Open

component/api kind/enhancement

prometheus/alertmanager#5481 · 1 comment · 1 assignee · Opened Aug 29, 2026
API v3alpha: build stored-mutation watch infrastructure Open

component/api component/storage kind/enhancement

prometheus/alertmanager#5480 · 1 comment · 1 assignee · Opened Aug 29, 2026
API v3alpha: add shared contracts and reusable infrastructure Open

component/api kind/enhancement

prometheus/alertmanager#5479 · 1 assignee · Opened Aug 29, 2026
API v3alpha: harden the ConnectRPC foundation Open

component/api kind/enhancement

prometheus/alertmanager#5478 · 1 comment · 1 assignee · Opened Aug 29, 2026
Jira integration: Support for API token auth method Open

component/notify

Difficulty 4/5 3-5 days Newbie friendliness 48/100

prometheus/alertmanager#5475 · 4 comments · Opened Aug 28, 2026
Versioned Configuration Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

prometheus/alertmanager#5462 · Opened Aug 21, 2026
Auto expire silences that don't match anything for N period Open

component/silences

Difficulty 5/5 Over a week Newbie friendliness 35/100

prometheus/alertmanager#5459 · 4 comments · Opened Aug 20, 2026
Document the wildcard CORS default, and reconsider it for the v3 API Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

prometheus/alertmanager#5455 · Opened Aug 17, 2026
New UI integration with API v3alpha Open

component/ui kind/enhancement

prometheus/alertmanager#5451 · 1 comment · 1 assignee · Opened Aug 14, 2026
API v3alpha Open

component/api

prometheus/alertmanager#5450 · 1 assignee · Opened Aug 14, 2026
featurecontrol: feature-flag activation is logged at WARN, so a clean start-up emits warnings Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

prometheus/alertmanager#5412 · 2 comments · Opened Jul 30, 2026
Embedded native MCP server support Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

prometheus/alertmanager#5407 · 1 comment · Opened Jul 27, 2026
Alertmanager config improvements for multitenancy and testability/mantainability Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

prometheus/alertmanager#5403 · 2 reactions · Opened Jul 24, 2026
Add receiver/integration (and where available, channel) as structured log fields on notification failures Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

prometheus/alertmanager#5396 · 7 comments · Opened Jul 17, 2026
Rendering notification templates should not silently swallow errors Open

component/notify component/templating

Difficulty 4/5 3-5 days Newbie friendliness 48/100

prometheus/alertmanager#5322 · 5 comments · Opened Jun 23, 2026
Overview Dashboard Open

keepalive

prometheus/alertmanager#5261 · 1 assignee · Opened May 29, 2026
Improve Alertmanager Semantics for Partially Muted Alert Groups Open

component/notify

prometheus/alertmanager#5247 · 13 comments · 8 reactions · 1 assignee · Opened May 20, 2026
Jira Integration should not require Labels to be submitted Open

component/notify

Difficulty 3/5 1-2 days Newbie friendliness 48/100

prometheus/alertmanager#5230 · 8 comments · Opened May 7, 2026
Feature Request: Preserve EndsAt timestamp in Webhook payloads instead of resetting to zero value Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

prometheus/alertmanager#5198 · 2 comments · Opened Apr 29, 2026
Feature request: native config auto-reload support, similar to Prometheus `auto-reload-config` Open

component/config

prometheus/alertmanager#5197 · 4 comments · 2 assignees · Opened Apr 28, 2026
Add batch routing test file support with inhibition assertions to `amtool config routes test` Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

prometheus/alertmanager#5167 · 1 comment · 1 reaction · Opened Apr 10, 2026
Panic error on config parsing when `update_message: true` in `slack_configs` Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

prometheus/alertmanager#5164 · Opened Apr 9, 2026
[Feat/bug] TLS config, allow to define x509.VerifyOptions.KeyUsages Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

prometheus/alertmanager#5151 · 2 comments · Opened Apr 3, 2026
Optional abandon of long-undelivered notifications to protect receivers after outages Open

component/notify

Difficulty 5/5 Over a week Newbie friendliness 35/100

prometheus/alertmanager#5134 · 3 comments · Opened Mar 31, 2026
clustering: peer TLS certificates are validated against their IP address instead of their hostname Open

help wanted keepalive

Difficulty 4/5 3-5 days Newbie friendliness 50/100

prometheus/alertmanager#5112 · 2 comments · Opened Mar 25, 2026
clustering: `--cluster.advertise-address` implicitly expects an IP address and does not let one use a hostname Open

component/high availability kind/documentation

Difficulty 3/5 1-2 days Newbie friendliness 67/100

prometheus/alertmanager#5111 · 5 comments · Opened Mar 25, 2026
Alertmanager stops responding to HTTP requests under load Open

kind/more-info-needed

Difficulty 4/5 3-5 days Newbie friendliness 35/100

prometheus/alertmanager#5087 · 2 comments · 2 reactions · Opened Mar 10, 2026
notify.DeepCopyWithTemplate edge cases Open

prometheus/alertmanager#5012 · 3 comments · 1 assignee · Opened Feb 13, 2026
Add SIGNL4 Receiver for mobile alerting Open

component/notify

Difficulty 5/5 Over a week Newbie friendliness 42/100

prometheus/alertmanager#5003 · 7 comments · Opened Feb 11, 2026
Add Global Receiver template support? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

prometheus/alertmanager#5002 · 3 comments · Opened Feb 11, 2026
Alertmanager does not load everything needed for notifiers on startup Open

component/config keepalive

Difficulty 3/5 1-2 days Newbie friendliness 45/100

prometheus/alertmanager#4994 · Opened Feb 10, 2026
Create dedicated types for properties of configuration that have been checked Open

component/config

Difficulty 5/5 Over a week Newbie friendliness 35/100

prometheus/alertmanager#4993 · Opened Feb 10, 2026
Multiple receivers hide other errors in configuration Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

prometheus/alertmanager#4991 · 2 comments · Opened Feb 10, 2026
Notifiers only return a single error rather than all error. Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

prometheus/alertmanager#4990 · 3 comments · Opened Feb 10, 2026
Alertmanager exposes errors one by one Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

prometheus/alertmanager#4989 · 1 comment · Opened Feb 10, 2026

prometheus/alertmanager

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