COH-31702 - Add custom SBOM generation file sbom_generation.yaml (#216)

Author: dhirupandey

sbom_generation.yaml

@@ -0,0 +1,42 @@
+# Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+
+# This OCI DevOps build specification file [1] generates a Software Bill of Materials (SBOM) of the repository.
+# The file is needed to run checks for third-party vulnerabilities and business approval according to Oracle’s GitHub policies.
+# [1] https://docs.oracle.com/en-us/iaas/Content/devops/using/build_specs.htm
+
+version: 0.1
+component: build
+timeoutInSeconds: 1000
+shell: bash
+env:
+  variables:
+    PYTHON_CMD: "python3"
+    CDXGEN_DEBUG_MODE: "debug"
+steps:
+  - type: Command
+    name: "Download the version 10.10.0 of cdxgen globally"
+    command: |
+      npm install -g @cyclonedx/[email protected]
+  - type: Command
+    name: "Workaround to let cdxgen run on nodejs 16"
+    command: |
+      # cdxgen relies on a fourth-party dependency that cannot be executed in a Node.js environment running version 16
+      # (as installed on the build runner instance)
+      # This is a workaround to ensure cdxgen functions correctly, even in an older Node.js environment.
+      cd /node/node-v16.14.2-linux-x64/lib/node_modules/@cyclonedx/cdxgen && \
+      npm install [email protected]
+  - type: Command
+    name: "Generate SBOM for Python "
+    command: |
+      # Search the test or dev requirements files, so that test and dev py packages can be excluded in the generated SBOM
+      files=$(find . -type f -regex ".*\(test.*requirements\|requirements.*test\|dev.*requirements\|requirements.*dev\).*\.txt") && \
+      if [ -n "$files" ]; then \
+        cdxgen -t python -o artifactSBOM.json --spec-version 1.4 \
+        --exclude "*{requirements,dev,test}*{requirements,dev,test}*.txt" --project-name "$(basename $OCI_PRIMARY_SOURCE_URL)" --no-recurse
+      else \
+         cdxgen -t python -o artifactSBOM.json --spec-version 1.4 --project-name "$(basename $OCI_PRIMARY_SOURCE_URL)" --no-recurse
+      fi \
+outputArtifacts:
+  - name: artifactSBOM
+    type: BINARY
+    location: ${OCI_PRIMARY_SOURCE_DIR}/artifactSBOM.json