hs-test: add nginx test

Type: test

Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
Change-Id: Idd5352f254df0d1f36c1270e73440c9287247b81
diff --git a/extras/hs-test/script/build.sh b/extras/hs-test/script/build.sh
index d80823b..b8962ec 100755
--- a/extras/hs-test/script/build.sh
+++ b/extras/hs-test/script/build.sh
@@ -11,3 +11,4 @@
 cp -r ${VPP_WS}/build-root/build-vpp_debug-native/vpp/lib/x86_64-linux-gnu/* ${lib}
 
 docker build -t hs-test/vpp -f Dockerfile.vpp .
+docker build -t hs-test/nginx-ldp -f Dockerfile.nginx .