Add env var to dockerfile

Signed-off-by: thepetk <thepetk@gmail.com>

index/server/Dockerfile

@@ -40,6 +40,10 @@ RUN set -x ; \
 # Modify the permissions on the necessary files to allow the container to properly run as a non-root UID
 RUN mkdir -p /www/data && chmod -R g+rwx /www/data
 
+# disable http/2 on the index server by default
+ARG ENABLE_HTTP2=false
+ENV ENABLE_HTTP2=${ENABLE_HTTP2}
+
 # Set env vars for the locations of the devfile stacks and index.json
 ENV DEVFILE_STACKS /registry/stacks
 ENV DEVFILE_SAMPLES /registry/samples

index/server/build.sh

@@ -15,14 +15,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# Environment variable which enables http2 protocol
-ENABLE_HTTP2 ?= false
-
 # Build the index container for the registry
 buildfolder="$(realpath $(dirname ${BASH_SOURCE[0]}))"
 
 # Generate OpenAPI endpoint and type definitions
 bash ${buildfolder}/codegen.sh
 
 # Build the index server
-docker build -t devfile-index-base:latest $buildfolder --build-arg ENABLE_HTTP2=${ENABLE_HTTP2}
+docker build -t devfile-index-base:latest --build-arg ENABLE_HTTP2=${ENABLE_HTTP2} $buildfolder