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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| name: Attest Images | ||
| on: [workflow_call] | ||
| jobs: | ||
| binary-auth: | ||
| runs-on: ubuntu-latest | ||
| defaults: | ||
| run: | ||
| working-directory: . | ||
| steps: | ||
| - uses: actions/checkout@v2 | ||
| - id: gcloud-auth | ||
| name: Authenticate with gcloud | ||
| uses: 'google-github-actions/auth@v1' | ||
| with: | ||
| credentials_json: '${{ secrets.GCP_CREDENTIALS }}' | ||
| - name: Set up Cloud SDK | ||
| id: setup-gcloud-sdk | ||
| uses: 'google-github-actions/setup-gcloud@v1' | ||
| - name: Install gcloud beta | ||
| id: install-gcloud-beta | ||
| run: gcloud components install beta | ||
| - name: Attest Images | ||
| run: | | ||
| grep -ir "image:" ./manifests/blog-app/ | awk {'print $3'} | sort -t: -u -k1,1 > ./images | ||
| for image in $(cat ./images); do | ||
| no_of_slash=$(echo $image | tr -cd '/' | wc -c) | ||
| prefix="" | ||
| if [ $no_of_slash -eq 1 ]; then | ||
| prefix="docker.io/" | ||
| fi | ||
| if [ $no_of_slash -eq 0 ]; then | ||
| prefix="docker.io/library/" | ||
| fi | ||
| image_to_attest=$image | ||
| if [[ $image =~ "@" ]]; then | ||
| echo "Image $image has DIGEST" | ||
| image_to_attest="${prefix}${image}" | ||
| else | ||
| echo "All images should be in the SHA256 digest format" | ||
| exit 1 | ||
| fi | ||
| echo "Processing $image" | ||
| attestation_present=$(gcloud beta container binauthz attestations list --attestor-project="${{ secrets.PROJECT_ID }}" --attestor="${{ secrets.ATTESTOR_NAME }}" --artifact-url="${image_to_attest}") | ||
| if [ -z "${attestation_present// }" ]; then | ||
| gcloud beta container binauthz attestations sign-and-create --artifact-url="${image_to_attest}" --attestor="${{ secrets.ATTESTOR_NAME }}" --attestor-project="${{ secrets.PROJECT_ID }}" --keyversion-project="${{ secrets.PROJECT_ID }}" --keyversion-location="${{ secrets.KMS_KEY_LOCATION }}" --keyversion-keyring="${{ secrets.KMS_KEYRING_NAME }}" --keyversion-key="${{ secrets.KMS_KEY_NAME }}" --keyversion="${{ secrets.KMS_KEY_VERSION }}" | ||
| fi | ||
| done |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| for image in $(cat ./images); do | ||
| no_of_slash=$(echo $image | tr -cd '/' | wc -c) | ||
| prefix="" | ||
| if [ $no_of_slash -eq 1 ]; then | ||
| prefix="docker.io/" | ||
| fi | ||
| if [ $no_of_slash -eq 0 ]; then | ||
| prefix="docker.io/library/" | ||
| fi | ||
| image_to_attest=$image | ||
| if [[ $image =~ "@" ]]; then | ||
| echo "Image $image has DIGEST" | ||
| image_to_attest="${prefix}${image}" | ||
| else | ||
| DIGEST=$(docker pull $image | grep Digest | awk {'print $2'}) | ||
| image_name=$(echo $image | awk -F ':' {'print $1'}) | ||
| image_to_attest="${prefix}${image_name}@${DIGEST}" | ||
| fi | ||
| escaped_image=$(printf '%s\n' "${image}" | sed -e 's/[]\/$*.^[]/\\&/g') | ||
| escaped_image_to_attest=$(printf '%s\n' "${image_to_attest}" | | ||
| sed -e 's/[]\/$*.^[]/\\&/g') | ||
| echo "Processing $image" | ||
| grep -rl $image ./manifests | | ||
| xargs sed -i "s/${escaped_image}/${escaped_image_to_attest}/g" | ||
| done |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| resource "google_kms_key_ring" "qa-attestor-keyring" { | ||
| count = var.branch == "dev" ? 1 : 0 | ||
| name = "qa-attestor-keyring" | ||
| location = var.region | ||
| lifecycle { | ||
| prevent_destroy = false | ||
| } | ||
| } | ||
|
|
||
| module "qa-attestor" { | ||
| count = var.branch == "dev" ? 1 : 0 | ||
| source = "terraform-google-modules/kubernetes-engine/google//modules/binary-authorization" | ||
| attestor-name = "quality-assurance" | ||
| project_id = var.project_id | ||
| keyring-id = google_kms_key_ring.qa-attestor-keyring[0].id | ||
| } | ||
|
|
||
| resource "google_binary_authorization_policy" "policy" { | ||
| count = var.branch == "dev" ? 1 : 0 | ||
| admission_whitelist_patterns { | ||
| name_pattern = "gcr.io/google_containers/*" | ||
| } | ||
| admission_whitelist_patterns { | ||
| name_pattern = "gcr.io/google-containers/*" | ||
| } | ||
| admission_whitelist_patterns { | ||
| name_pattern = "k8s.gcr.io/**" | ||
| } | ||
| admission_whitelist_patterns { | ||
| name_pattern = "gke.gcr.io/**" | ||
| } | ||
| admission_whitelist_patterns { | ||
| name_pattern = "gcr.io/stackdriver-agents/*" | ||
| } | ||
| admission_whitelist_patterns { | ||
| name_pattern = "quay.io/argoproj/*" | ||
| } | ||
| admission_whitelist_patterns { | ||
| name_pattern = "ghcr.io/dexidp/*" | ||
| } | ||
| admission_whitelist_patterns { | ||
| name_pattern = "docker.io/redis[@:]*" | ||
| } | ||
| admission_whitelist_patterns { | ||
| name_pattern = "ghcr.io/external-secrets/*" | ||
| } | ||
| global_policy_evaluation_mode = "ENABLE" | ||
| default_admission_rule { | ||
| evaluation_mode = "REQUIRE_ATTESTATION" | ||
| enforcement_mode = "ENFORCED_BLOCK_AND_AUDIT_LOG" | ||
| require_attestations_by = [ | ||
| module.qa-attestor[0].attestor | ||
| ] | ||
| } | ||
| } |
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