Skip to content

feat(publish-image-index-manifest): Expose image index manifest digest #113

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
dervoeti merged 2 commits into from
Jun 26, 2026
+12 −3
Merged

feat(publish-image-index-manifest): Expose image index manifest digest #113

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
0619597
feat(publish-image-index-manifest): expose image index manifest digest
dervoeti Jun 26, 2026
d266918
Merge branch 'main' of https://github.com/stackabletech/actions into …
dervoeti Jun 26, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions publish-image-index-manifest/README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -29,5 +29,6 @@ This action creates an image index manifest, publishes it, and signs it. It does
### Outputs

- `image-index-uri`: The final image index URI, eg. `oci.stackable.tech/spd/kafka:3.4.1-stackable0.0.0-dev`.
- `image-index-manifest-digest`: The digest (`sha256:...`) of the pushed image index manifest, used as input for SLSA provenance generation.

[publish-image-index-manifest]: ./action.yaml
14 changes: 11 additions & 3 deletions publish-image-index-manifest/action.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,11 @@ outputs:
image-index-uri:
description: The Image Index URI.
value: ${{ steps.create-index.outputs.IMAGE_INDEX_URI }}
image-index-manifest-digest:
description: |
The digest (sha256:...) of the pushed image index manifest. Used as input
for SLSA provenance generation.
value: ${{ steps.create-index.outputs.IMAGE_INDEX_MANIFEST_DIGEST }}
runs:
using: composite
steps:
Expand Down Expand Up @@ -94,21 +99,24 @@ runs:
docker manifest create "$IMAGE_INDEX_URI" ${AMEND_OPTIONS[@]}
docker manifest push "$IMAGE_INDEX_URI"

# Get the image index manifest digest and expose it as an output, so it
# can be fed into SLSA provenance generation.
DIGEST=$("$GITHUB_ACTION_PATH/../.scripts/actions/get_manifest_digest.sh" "$IMAGE_INDEX_URI")
echo "IMAGE_INDEX_MANIFEST_DIGEST=$DIGEST" | tee -a "$GITHUB_OUTPUT"

- name: Sign Image Index Manifest
shell: bash
env:
RETRY_TIMEOUT: ${{ inputs.cosign-retry-timeout }}
RETRY_COUNT: ${{ inputs.cosign-retries }}
RETRY_ARGS: --verbose
IMAGE_INDEX_URI: ${{ steps.create-index.outputs.IMAGE_INDEX_URI }}
DIGEST: ${{ steps.create-index.outputs.IMAGE_INDEX_MANIFEST_DIGEST }}
IMAGE_REPOSITORY: ${{ inputs.image-repository }}
REGISTRY_URI: ${{ inputs.image-registry-uri }}
run: |
set -euo pipefail

# Get the image index manifest digest
DIGEST=$("$GITHUB_ACTION_PATH/../.scripts/actions/get_manifest_digest.sh" "$IMAGE_INDEX_URI")

# Construct the image repo digest, which for example contains:
# oci.stackable.tech/sdp/kafka@sha256:91...
IMAGE_REPO_DIGEST="$REGISTRY_URI/$IMAGE_REPOSITORY@$DIGEST"
Expand Down