Update environent variable setting

Author: jerusdp

.github/workflows/security.yml

@@ -0,0 +1,32 @@
+name: Security
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  test:
+    name: Security Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the repo
+        uses: actions/checkout@v1
+
+      - name: Build my Image
+        env:
+          REPO: 'jerusdp/lambda-rust'
+        run: |
+          echo "docker_repo=${{ env.REPO }}" >> $GITHUB_ENV
+          make build
+
+      - name: Run Trivy vulnerability scanner
+        uses: aquasecurity/trivy-action@0.0.20
+        with:
+          image-ref: '${{ env.docker_repo }}:latest'
+          format: 'table'
+          exit-code: '1'
+          ignore-unfixed: true
+          vuln-type: 'os,library'
+          severity: 'CRITICAL,HIGH'
+