test(linking): add some linking tests (#9)

Dockerfile

@@ -3,6 +3,7 @@ ARG ARCHITECTURE=x86_64
 ARG DOCKER_REGISTRY=ghcr.io
 ARG DOCKER_IMAGE_NAME
 
+
 # List out all image permutations to trick dependabot
 FROM --platform=linux/amd64 kong/kong-build-tools:apk-1.8.1 as x86_64-linux-musl
 FROM --platform=linux/amd64 kong/kong-build-tools:rpm-1.8.1 as x86_64-linux-gnu
@@ -16,6 +17,10 @@ FROM $ARCHITECTURE-$OSTYPE as build
 COPY . /src
 RUN /src/build.sh && /src/test.sh
 
+# Test scripts left where downstream images can run them
+COPY test.sh /test/kong-openssl/test.sh
+COPY .env /test/kong-openssl/.env
+
 
 # Copy the build result to scratch so we can export the result
 FROM scratch as package

test.sh

@@ -11,9 +11,13 @@ export $(grep -v '^#' $SCRIPT_DIR/.env | xargs)
 
 function test() {
     cp -R /tmp/build/* /
+    mv /tmp/build /tmp/buffer # Check we didn't link dependencies to `/tmp/build/...`
+
     /usr/local/kong/bin/openssl version
     /usr/local/kong/bin/openssl version | grep -q $OPENSSL_VERSION
-    ls -la /usr/local/kong/lib/libyaml.so
+    ldd /usr/local/kong/lib/libyaml.so
+
+    mv /tmp/buffer /tmp/build
 }
 
 test