sigstore-stack

Chart · Stacks · standard · v0.0.4

digest pinnedcosign signedSPDX SBOMSLSA provenanceamd64 · arm64

Self-hosted Sigstore: the Fulcio certificate authority, the Rekor v2 transparency log and the Timestamp Authority in one install, for keyless signing with cosign against your own infrastructure.

Version

0.0.4 · latest 0.0.3 0.0.2

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:a7be717074886a5589590e8cc01b2fdc48084e0d24c4a3bc9f6b878dfc3b3c98

Chart OCI version

oci://ghcr.io/quenchworks/charts/sigstore-stack:0.0.4

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

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-sigstore-stack oci://ghcr.io/quenchworks/charts/sigstore-stack --version 0.0.4

Deploys image (digest-pinned)

ghcr.io/quenchworks/images/fulcio@sha256:a7be717074886a5589590e8cc01b2fdc48084e0d24c4a3bc9f6b878dfc3b3c98
ghcr.io/quenchworks/images/rekor-tiles@sha256:4a51c3565f88789ff8d8dc2c808a32b67ee6b34f509d8b58dd80e1d403febdc2
ghcr.io/quenchworks/images/caddy@sha256:015a4b181ab2e433ef23565b210c09204366e9126491c648586cb70e06f71ab5
ghcr.io/quenchworks/images/timestamp-authority@sha256:383b3ced033dc77c5ba806107f80a6fc454466a875864af5cf9d086c9eebef21

Charts used:

fulcio →rekor-tiles →timestamp-authority →

Chart version: 0.0.4
App version: 1.0.0
Chart license: Apache-2.0
App license: Unknown
Signed: cosign (keyless)
Values schema: yes
Last published: 2026-10-04

Verify the chart

cosign verify ghcr.io/quenchworks/charts/sigstore-stack:0.0.4 \
  --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 on ArtifactHub Chart source

Upstream project: