cosign, Checked Against The Published Checksums
cosign on EL 10 from the GitHub release, refused by Ansible's get_url unless its SHA-256 is the one in Sigstore's cosign_checksums.txt, and re-checked with sha256sum -c by the live test, which then asks cosign to verify a blob with a key that does not exist and expects it to stop at loading the key. Original role, live-tested on Rocky Linux 10.
Verification
Live-testedReally deployed to a container sandbox, proven idempotent (a second run changes nothing), verified against the role’s assertions, then torn down.
Conformance
- Static validation (yamllint · ansible-lint)
Provenance
- SHA-256 checksum
- Signature (pending)
Functional
- Live-tested - applied, verified, destroyed
Last verified 2026-09-20 · podman 4.9.3 · ansible 2.21.4 · how we verify
Cite it in your README
badge · attributionPaste this beside the module in the repository that uses it. The badge is rendered from this artifact's verification record, so it reads live-tested because the record says so, and the link lands on this page.
[](https://www.iac-bazaar.com/catalog/ansible-cosign?utm_source=syndication&utm_medium=readme&utm_campaign=artifact)
Ansible role 1.0.0, live-tested on IaC Bazaar: [cosign, Checked Against The Published Checksums](https://www.iac-bazaar.com/catalog/ansible-cosign?utm_source=syndication&utm_medium=readme&utm_campaign=artifact)
```yaml
# cosign, Checked Against The Published Checksums: https://www.iac-bazaar.com/catalog/ansible-cosign (download from your IaC Bazaar account)
```Preview:
Documentation
cosign
Sigstore cosign on EL 10 from the vendor's release, checked against the
published SHA-256, pinned to a version, installed as root's binary
in /usr/local/bin. Original role for EL 10, live-tested with podman on
Rocky Linux 10.
No package worth the name. EL 10 carries no cosign, and a
third-party repository is one more key to trust. This role takes the
release from github.com/sigstore/cosign, has Ansible's get_url refuse the asset unless
its SHA-256 is the published one, and the live test checks the asset on
disk against the same published value again.
Pinned. cosign_version is what gets installed, kept in a directory
of its own so the checksum file and the asset it names stay together. A
newer release is a variable change and a run; the same version is
changed=0.
Proven to run. The live test runs cosign verify-blob --key /tmp/no.pub --signature /tmp/no.sig /etc/hostname and expects
"loading public key" - the binary ran all the way to the point where it
needed something this host does not have.
The tool that verifies signatures, verified by a checksum. Sigstore
publishes cosign_checksums.txt.sigstore.json beside the checksum file, a
bundle that cosign itself can verify; a host without cosign cannot, so
this role checks the SHA-256 and leaves that verification to the first
cosign on the host: cosign verify-blob --bundle cosign_checksums.txt.sigstore.json --certificate-identity-regexp '^https://github.com/sigstore/cosign/' --certificate-oidc-issuer https://token.actions.githubusercontent.com cosign_checksums.txt. The
live test asks cosign verify-blob to verify with a key that does not
exist and expects it to stop at loading that key.
License
Commercial - IaC Bazaar EULA. (c) IaC Bazaar.
Usage code & full reference need an account
The complete copy-paste usage, the full input/output reference, and operational notes are free with an account - shown here and bundled in the download. Sign in and this section fills in.
- Variables
- Test
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