Add test for base docker image

.github/workflows/docker-image.yml

@@ -26,6 +26,11 @@ jobs:
         echo "Running unit tests..."
         ./tests/tests.sh
 
+    - name: Validate Dockerfile supports multi-arch
+      run: |
+        echo "Checking if the base docker image supports amd64 and arm64..."
+        ./tests/validate_dockerfile.sh
+
     - name: Set up QEMU
       uses: docker/setup-qemu-action@v3
 

tests/validate_dockerfile.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# Read the Dockerfile and find the FROM line
+from_line=$(grep '^FROM ' Dockerfile)
+
+# Extract the image name and SHA hash
+if [[ $from_line =~ FROM[[:space:]]+([^@]+)@([^[:space:]]+) ]]; then
+  image_name="${BASH_REMATCH[1]}"
+  sha_from_dockerfile="${BASH_REMATCH[2]}"
+  full_image_name="$image_name@$sha_from_dockerfile"
+
+  echo "Image Name: '$image_name'"
+  echo "Full Image Name: '$full_image_name'"
+  echo "SHA from image:  '$sha_from_dockerfile'"
+else
+  echo "FROM line with SHA not found in Dockerfile"
+fi
+
+# Run the docker command to get the SHA from mquery
+mquery_output=$(docker run --rm mplatform/mquery:latest@sha256:938c26673f9b81f1c574e5911b79c4a9accf6aa918af575c94c9d488121db63c $image_name --platforms linux/amd64,linux/arm64)
+sha_from_mquery=$(echo "$mquery_output" | grep -oP '(?<=digest: )[^\)]+')
+
+echo "SHA from mquery: '$sha_from_mquery'"
+
+# Compare the two SHAs
+if [[ "$sha_from_dockerfile" == "$sha_from_mquery" ]]; then
+  echo "SHAs match. All is well."
+else
+  echo "SHAs do not match. Check your Dockerfile."
+  exit 1
+fi
+
+# Check for the presence of linux/amd64 and linux/arm64 in the output
+if echo "$mquery_output" | grep -q "linux/amd64" && echo "$mquery_output" | grep -q "linux/arm64"; then
+  echo "Both linux/amd64 and linux/arm64 are supported."
+else
+  echo "One of linux/amd64 or linux/arm64 is not supported."
+  exit 1
+fi