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CLOUDP-354456 - Conform kubectl-mongodb signing to new 3.0.2 version of cosign #555

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Merged
merged 6 commits into from
Oct 29, 2025
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CLOUDP-354456 - Conform kubectl-mongodb signing to new 3.0.2 version of cosign #555

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29fd229
move files
MaciejKaras Oct 24, 2025
ec01373
CLOUDP-295785 - Fix multi-arch builds by migrating away from goreleaser
MaciejKaras Oct 24, 2025
cea610c
CLOUDP-354456 - Conform `kubectl-mongodb` signing to new 3.0.2 versio…
MaciejKaras Oct 27, 2025
5449573
Disable tlog
MaciejKaras Oct 27, 2025
2119826
Update changelog/20251027_other_cosign_version_upgrade.md
MaciejKaras Oct 27, 2025
28dd2dc
Merge branch 'master' into maciejk/ar-cosign-upgrade
MaciejKaras Oct 29, 2025
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6 changes: 6 additions & 0 deletions changelog/20251027_other_cosign_version_upgrade.md
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@@ -0,0 +1,6 @@
---
kind: other
date: 2025-10-27
---

* **kubectl-mongodb plugin**: `cosign`, the signing tool that is used to sign `kubectl-mongodb` plugin binaries, has been updated to version `3.0.2`. With this change, released binaries will be bundled with `.bundle` files containing both signature and certificate information. For more information on how to verify signatures using new `cosign` version please refer to -> https://github.com/sigstore/cosign/blob/v3.0.2/doc/cosign_verify-blob.md
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@vinilage vinilage Oct 29, 2025

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LGTM!

6 changes: 3 additions & 3 deletions scripts/release/kubectl_mongodb/sign.sh
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Expand Up @@ -8,7 +8,7 @@ set -euo pipefail
# Sign a binary using garasign credentials

ARTIFACT=$1
SIGNATURE="${ARTIFACT}.sig"
SIGNATURE_BUNDLE="${ARTIFACT}.bundle"

TMPDIR=${TMPDIR:-/tmp}
SIGNING_ENVFILE="${TMPDIR}/signing-envfile"
Expand All @@ -21,7 +21,7 @@ SIGNING_IMAGE_URI=${SIGNING_IMAGE_URI}
ARTIFACTORY_PASSWORD=${ARTIFACTORY_PASSWORD}
ARTIFACTORY_USERNAME=${ARTIFACTORY_USERNAME}

echo "Signing artifact ${ARTIFACT} and saving signature to ${SIGNATURE}"
echo "Signing artifact ${ARTIFACT} and saving signature bundle to ${SIGNATURE_BUNDLE}"

{
echo "GRS_CONFIG_USER1_USERNAME=${GRS_USERNAME}";
Expand All @@ -40,4 +40,4 @@ docker run \
-v "$(pwd)":"$(pwd)" \
-w "$(pwd)" \
"${SIGNING_IMAGE_URI}" \
cosign sign-blob --key "${PKCS11_URI}" --output-signature "${SIGNATURE}" "${ARTIFACT}" --yes
cosign sign-blob --key "${PKCS11_URI}" --tlog-upload=false --use-signing-config=false --bundle "${SIGNATURE_BUNDLE}" "${ARTIFACT}" --yes
14 changes: 7 additions & 7 deletions scripts/release/kubectl_mongodb/verify.sh
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Expand Up @@ -2,10 +2,10 @@

set -euo pipefail

# Verify the signature of a binary with the operator's public key
# Verify the signature bundle of a binary with the operator's public key

ARTIFACT=$1
SIGNATURE="${ARTIFACT}.sig"
SIGNATURE_BUNDLE="${ARTIFACT}.bundle"

HOSTED_SIGN_PUBKEY="https://cosign.mongodb.com/mongodb-enterprise-kubernetes-operator.pem" # to complete
TMPDIR=${TMPDIR:-/tmp}
Expand All @@ -14,19 +14,19 @@ KEY_FILE="${TMPDIR}/host-public.key"
SIGNING_IMAGE_URI="${SIGNING_IMAGE_URI}"

curl -o "${KEY_FILE}" "${HOSTED_SIGN_PUBKEY}"
echo "Verifying signature ${SIGNATURE} of artifact ${ARTIFACT}"
echo "Verifying signature bundle ${SIGNATURE_BUNDLE} of artifact ${ARTIFACT}"
echo "Keyfile is ${KEY_FILE}"

# When working locally, the following command can be used instead of Docker
# cosign verify-blob --key ${KEY_FILE} --signature ${SIGNATURE} ${ARTIFACT}
# cosign verify-blob --key ${KEY_FILE} --insecure-ignore-tlog --bundle ${SIGNATURE_BUNDLE} ${ARTIFACT}

docker run \
--rm \
-v "$(pwd)":"$(pwd)" \
-v "${KEY_FILE}":"${KEY_FILE}" \
-w "$(pwd)" \
"${SIGNING_IMAGE_URI}" \
cosign verify-blob --key "${KEY_FILE}" --signature "${SIGNATURE}" "${ARTIFACT}"
cosign verify-blob --key "${KEY_FILE}" --insecure-ignore-tlog --bundle "${SIGNATURE_BUNDLE}" "${ARTIFACT}"

# Without below line, Evergreen fails at archiving with "open dist/kubectl-[...]/kubectl-mongodb.sig: permission denied
sudo chmod 666 "${SIGNATURE}"
# Without below line, Evergreen fails at archiving with "open dist/kubectl-[...]/kubectl-mongodb.bundle: permission denied
sudo chmod 666 "${SIGNATURE_BUNDLE}"