✨ Pull builder's binary instead of compiling it #86
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| # Used for pre-submit tests. | ||
| version: 1 | ||
| env: | ||
| - GO111MODULE=on | ||
| - CGO_ENABLED=0 | ||
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| flags: | ||
| - -trimpath | ||
| - -tags=netgo | ||
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| goos: linux | ||
| goarch: amd64 | ||
| dir: builders/go/ | ||
| binary: slsa-builder-go-{{ .Os }}-{{ .Arch }} |
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| name: Builders realeaser | ||
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| on: | ||
| push: | ||
| tags: | ||
| - "*" # triggers only if push new tag version, like `0.8.4` or else | ||
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| permissions: read-all | ||
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| env: | ||
| GH_TOKEN: ${{ secrets.E2E_GO_TOKEN }} | ||
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| jobs: | ||
| # Go builder. | ||
| go-builder: | ||
| permissions: | ||
| id-token: write # For signing. | ||
| contents: write # For asset uploads. | ||
| uses: laurentsimon/slsa-github-generator/.github/workflows/builder_go_slsa3.yml@feat/fastbuilds | ||
| with: | ||
| go-version: 1.18 | ||
| config-file: .github/workflows/configs-go/config-release.yml | ||
| compile-builder: true |
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| #!/usr/bin/env bash | ||
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| set -euo pipefail | ||
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| # Caller sets the following: | ||
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There was a problem hiding this comment. Note: We will replace this script with Golang code in the future #87 |
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| #BUILDER_REPOSITORY="slsa-framework/slsa-github-generator" | ||
| #BUILDER_TAG="v13.0.10" or "6a1e642a8689671a2cec9287149eb50bd9fe5ef6" | ||
| #BUILDER_RELEASE_BINARY="builder-linux-amd64" | ||
| #VERIFIER_REPOSITORY="slsa-framework/slsa-verifier" | ||
| #VERIFIER_RELEASE="v13.0.10" | ||
| #VERIFIER_RELEASE_BINARY="slsa-verifier-linux-amd64" | ||
| #VERIFIER_RELEASE_BINARY_SHA256="89fbcba9aed67d5146ea99946c7e4e5a80e3767871f0e3ffcd0b582134efd010" | ||
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| PREFIX="refs/tags/" | ||
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| # Extract version. | ||
| if [[ "$BUILDER_REF" =~ "^$PREFIX*" ]]; then | ||
| echo "Invalid ref: $BUILDER_REF" | ||
| exit 2 | ||
| fi | ||
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| BUILDER_TAG="${BUILDER_REF#"$PREFIX"}" | ||
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| if [[ "$BUILDER_TAG" = "$(echo -n "$BUILDER_TAG" | grep -P '^[a-f\d]{40}$')" ]]; then | ||
| echo "Builder referenced by hash: $BUILDER_TAG" | ||
| echo "Resolving..." | ||
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| RELEASE_TAG="" | ||
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| # List the releases and find the corepsonding hash. | ||
| RELEASE_LIST=$(gh release -R "$BUILDER_REPOSITORY" -L 50 list) | ||
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| while read line; do | ||
| TAG=$(echo "$line" | cut -f1) | ||
| BRANCH=$(gh release -R "$BUILDER_REPOSITORY" view "$TAG" --json targetCommitish --jq '.targetCommitish') | ||
| if [[ "$BRANCH" != "main" ]]; then | ||
| continue | ||
| fi | ||
| COMMIT=$(gh api /repos/"$BUILDER_REPOSITORY"/git/ref/tags/"$TAG" | jq -r '.object.sha') | ||
| if [[ "$COMMIT" == "$BUILDER_TAG" ]]; then | ||
| RELEASE_TAG="$TAG" | ||
| echo "Found tag $BUILDER_TAG match at tag $TAG and commit $COMMIT" | ||
| break | ||
| fi | ||
| done <<< "$RELEASE_LIST" | ||
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| if [[ -z "$RELEASE_TAG" ]]; then | ||
| echo "Tag not found for $BUILDER_TAG" | ||
| exit 3 | ||
| fi | ||
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| BUILDER_TAG="$RELEASE_TAG" | ||
| fi | ||
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| if [[ "$BUILDER_TAG" != "$(echo -n "$BUILDER_TAG" | grep -P '^v\d*(\.([\d]{1,})){0,2}$')" ]]; then | ||
| echo "Invalid ref: $BUILDER_TAG" | ||
| exit 7 | ||
| fi | ||
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| echo "Builder version: $BUILDER_TAG" | ||
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| echo "BUILDER_REPOSITORY: $BUILDER_REPOSITORY" | ||
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| # Fetch the release binary and provenance. | ||
| gh release -R "$BUILDER_REPOSITORY" download "$BUILDER_TAG" -p "$BUILDER_RELEASE_BINARY*" || exit 10 | ||
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| # Fetch the verifier at the right hash. | ||
| gh release -R "$VERIFIER_REPOSITORY" download "$VERIFIER_RELEASE" -p "$VERIFIER_RELEASE_BINARY" || exit 11 | ||
| COMPUTED_HASH=$(sha256sum "$VERIFIER_RELEASE_BINARY" | awk '{print $1}') | ||
| echo "verifier hash computed is $COMPUTED_HASH" | ||
| echo "$VERIFIER_RELEASE_BINARY_SHA256 $VERIFIER_RELEASE_BINARY" | sha256sum --strict --check --status || exit 4 | ||
| echo "verifier hash verification has passed" | ||
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| # Verify the provenance of the builder. | ||
| chmod a+x "$VERIFIER_RELEASE_BINARY" | ||
| ./"$VERIFIER_RELEASE_BINARY" --branch "main" \ | ||
| --tag "$BUILDER_TAG" \ | ||
| --artifact-path "$BUILDER_RELEASE_BINARY" \ | ||
| --provenance "$BUILDER_RELEASE_BINARY.intoto.jsonl" \ | ||
| --source "github.com/$BUILDER_REPOSITORY" || exit 6 | ||
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| BUILDER_COMMIT=$(gh api /repos/"$BUILDER_REPOSITORY"/git/ref/tags/"$BUILDER_TAG" | jq -r '.object.sha') | ||
| PROVENANCE_COMMIT=$(cat "$BUILDER_RELEASE_BINARY.intoto.jsonl" | jq -r '.payload' | base64 -d | jq -r '.predicate.materials[0].digest.sha1') | ||
| if [[ "$BUILDER_COMMIT" != "$PROVENANCE_COMMIT" ]]; then | ||
| echo "Builder commit sha $BUILDER_COMMIT != provenance material $PROVENANCE_COMMIT" | ||
| exit 5 | ||
| fi | ||
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| #TODO: verify the command | ||
| echo "Builder provenance verified at tag $BUILDER_TAG and commit $BUILDER_COMMIT" | ||
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Note: this hash is invalid. We will update it once we (the maintainers) have cut a release for the verifier and verified the hash is valid thru provenance - see #74 (comment)