mastodon

Chart · Apps & productivity · standard · v0.0.8

digest pinnedcosign signedSPDX SBOMSLSA provenanceamd64 · arm64Rebuilt 2026-10-04

Mastodon, the federated social network server (web and sidekiq). Built from the release tag on a hardened Wolfi ruby-4.0 runtime with every gem compiled from source against Wolfi's libvips, libpq, ICU and libxml2, and the web assets compiled at build time, so no Node ships at runtime. Nonroot, read-only rootfs; PostgreSQL and Redis are external. The streaming server is a separate image.

Version

0.0.8 · latest 0.0.7 0.0.6

The latest line lives at the base page; older lines have their own page so you can pin and verify exactly that version. Only the most recent releases are listed — an older chart pins an older image digest.

Deployed image digest

sha256:00f08ab20748d8140e82ce9c01dacba374a25d423c0d392e9f209f5347743b99

Chart OCI version

oci://ghcr.io/quenchworks/charts/mastodon:0.0.8

The chart pins its image by this signed digest, so you never track it yourself. Signatures, SBOM, and provenance attach to the same digest.

Signed

cosign keyless

SBOM

SPDX, on image

Provenance

SLSA build

Architectures

amd64, arm64

Runs as

nonroot (uid 1001)

Root filesystem

read-only

Image size

325.7 MB

Security report (Trivy)

A+· 100/1000 fixable CVEs

Critical

High

Medium

Low

Unknown

Security report (Trivy) · image mastodon 4.7.3

Install the chart

Deploy to Kubernetes with hardened defaults. The chart pins its image by signed digest, so you never track it yourself.

Install (latest)

helm install my-mastodon oci://ghcr.io/quenchworks/charts/mastodon --version 0.0.8

Deploys image (digest-pinned)

ghcr.io/quenchworks/images/mastodon@sha256:00f08ab20748d8140e82ce9c01dacba374a25d423c0d392e9f209f5347743b99
ghcr.io/quenchworks/images/mastodon-streaming@sha256:13c706bcade068a5b63a4891ce4a32e90e30b1460949252634729c0c67cf1869
ghcr.io/quenchworks/images/postgresql@sha256:48aebfed6b703fc2e8582aff8382063ea6c06b62d8b735e1b13da306182d1f50
ghcr.io/quenchworks/images/valkey@sha256:b10dd145a2a8e35039d218b68806b2bc6158223b1970b773de986a1dbe209487

Chart version: 0.0.8
App version: 4.7.3
Chart license: AGPL-3.0-only
App license: AGPL-3.0
Service port: 3000
Signed: cosign (keyless)
Values schema: yes
Last published: 2026-10-06

Verify the chart

cosign verify ghcr.io/quenchworks/charts/mastodon:0.0.8 \
  --certificate-identity-regexp 'https://github.com/quenchworks/.+' \
  --certificate-oidc-issuer https://token.actions.githubusercontent.com

Transparency

The chart publishes its attestations on GitHub and the image it deploys carries its own on the same digest, publicly verifiable with the commands above. Both log to the Sigstore transparency log (Rekor), which cosign verify checks for you.

View the image View on ArtifactHub Chart source

Upstream project: https://joinmastodon.org