prometheus

Update docker.io/prom/alertmanager Docker tag to v0.33.1

No issues with this by means of Docker-compose YAML automated GitOps minor update of the Alertmanager Docker container and on the K3s Kubernetes cluster by means of Flux with dependency update facilitated by Mend's Renovate Bot.

This MR contains the following updates:

Package	Update	Change
docker.io/prom/alertmanager	patch	`v0.33.0` → `v0.33.1`

Release Notes

prometheus/alertmanager (docker.io/prom/alertmanager)

`v0.33.1`: 0.33.1 / 2026-07-04

Compare Source

[BUGFIX] doc: fix missing notification_reason field in webhook documentation (#5329)
[BUGFIX] silences: fix silences snapshot missing legacy matchers field. This caused a bug that prevented older alertmanager versions from reading newer snapshots unnecessarily. (#5330)
[BUGFIX] silence with no matchers should populate an empty array in API response (#5331)

Update docker.io/pihole/pihole Docker tag to v2026.07.2

On all three nodes I upgraded Pi-hole successfully by means of fully automated Watchtower Docker container update with dependency update facilitated by Mend's Renovate Bot. This MR contains the following updates: Package Update Change docker.io/pihole/pihole minor 2026.06.0 → 2026.07.2 Release Notes

Update quay.io/prometheuscommunity/postgres-exporter Docker tag to v0.20.1

Automtated minor upgrade of PostgreSQL exporter Docker container by means of Watchtower with dependency update facilitated by Mend's Renovate Bot. This MR contains the following updates: Package Update Change quay.io/prometheuscommunity/postgres-exporter patch v0.20.0 → v0.20.1 Release Notes prometheus-community/postgres_exporter (quay.

Update ghcr.io/goauthentik/server Docker tag to v2026.5.4

No problems upgrading the Docker container with a Docker compose yaml file by means of Watchtower DevOps resp. GitOps with dependency update facilitated by Mend's Renovate Bot. This MR contains the following updates: Package Update Change ghcr.io/goauthentik/server (source) patch 2026.5.3 → 2026.5.4

Update docker.io/rcourtman/pulse Docker tag to v6.0.4

No problems upgrading the Docker container with a Docker compose yaml file by means of Watchtower DevOps resp. GitOps with dependency update facilitated by Mend's Renovate Bot. Including updating all docker and host agents manually. This MR contains the following updates: Package Update Change docker.io/rcourtman/pulse

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