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fix(actions): download Trivy directly from GitHub releases #37

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36 changes: 33 additions & 3 deletions generate/action.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -75,10 +75,40 @@ runs:

- name: Set up Trivy
if: ${{ inputs.sbom == 'true' }}
uses: aquasecurity/setup-trivy@81e514348e19b6112ce2a7e3ecbafe19c1e1f567 # v0.3.1
with:
shell: bash
env:
# renovate: datasource=github-releases depName=aquasecurity/trivy
version: v0.76.0
TRIVY_VERSION: v0.76.0
run: |
# The upstream installer uses get.trivy.dev, which can fail DNS lookup.
# Download the same release directly and retain checksum verification.
case "$RUNNER_OS/$RUNNER_ARCH" in
Linux/X64) arch=64bit ;;
Linux/ARM64) arch=ARM64 ;;
*) echo "unsupported Trivy runner: $RUNNER_OS/$RUNNER_ARCH" >&2; exit 1 ;;
esac
version="${TRIVY_VERSION#v}"
archive="trivy_${version}_Linux-${arch}.tar.gz"
checksums="trivy_${version}_checksums.txt"
base="https://github.com/aquasecurity/trivy/releases/download/${TRIVY_VERSION}"
tmp_dir=$(mktemp -d)
trap 'rm -rf "$tmp_dir"' EXIT
for file in "$archive" "$checksums"; do
curl --fail --show-error --location --retry 3 --retry-all-errors \
"$base/$file" --output "$tmp_dir/$file"
done
(
cd "$tmp_dir"
awk -v archive="$archive" '$2 == archive {print}' "$checksums" > selected-checksum.txt
test -s selected-checksum.txt
sha256sum --check selected-checksum.txt
tar --no-same-owner -xzf "$archive" trivy
)
binary_dir="$RUNNER_TEMP/bom-trivy"
mkdir -p "$binary_dir"
install -m 0755 "$tmp_dir/trivy" "$binary_dir/trivy"
echo "$binary_dir" >> "$GITHUB_PATH"
"$binary_dir/trivy" --version

- name: Set up Cosign
if: ${{ inputs.cosign == 'true' }}
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