Moved default env variables to entrypoint. (#11)

Dockerfile

@@ -15,18 +15,12 @@ FROM gcr.io/google-appengine/debian9:latest
 
 ENV PACKER_VERSION 1.0.0
 ENV PACKER_SHA256 ed697ace39f8bb7bf6ccd78e21b2075f53c0f23cdfb5276c380a053a7b906853
-
 ENV PACKER_BINARY /bin/packer
 
 ENV CHEF_DIR /chef
 ENV PACKER_DIR /packer/templates
 ENV TESTS_DIR /tests
-
 ENV KEY_FILE_PATH /service-account.json
-ENV USE_INTERNAL_IP false
-
-ENV RUN_TESTS false
-ENV ATTACH_LICENSE false
 
 # Installs packages
 RUN set -eux \
@@ -55,9 +49,9 @@ RUN set -eux \
     # Unzips binary
     && unzip "packer_${PACKER_VERSION}_linux_amd64.zip" \
     && rm "packer_${PACKER_VERSION}_linux_amd64.zip" \
-    # Copies binary
-    && mv packer /bin/packer \
-    && chmod +x /bin/packer \
+    # Moves binary
+    && mv packer ${PACKER_BINARY} \
+    && chmod +x ${PACKER_BINARY} \
     # Downloads source code
     && curl -L -o packer.tar.gz "https://github.com/hashicorp/packer/archive/v${PACKER_VERSION}.tar.gz" \
     && mkdir -p /usr/local/src/packer \

scripts/build-vm-image.sh

@@ -39,17 +39,20 @@ function _register_gcloud_config() {
   gcloud info
 }
 
+# Print environment variables.
+env
+
 # Register a new gcloud configuration.
 _register_gcloud_config
 
 # Set default value for unset variables.
 # :: These variables are readonly wide.
-readonly RUN_TESTS="${RUN_TESTS:-true}"
-readonly ATTACH_LICENSE="${ATTACH_LICENSE:-true}"
+readonly RUN_TESTS="${RUN_TESTS:-false}"
+readonly ATTACH_LICENSE="${ATTACH_LICENSE:-false}"
 readonly IMAGE_NAME="${IMAGE_NAME:-${SOLUTION_NAME}-v$(($(date +%s%N)/1000000))}"
 # :: These variables are export wide.
 export ZONE="${ZONE:-us-central1-f}"
-export USE_INTERNAL_IP="${USE_INTERNAL_IP:-true}"
+export USE_INTERNAL_IP="${USE_INTERNAL_IP:-false}"
 
 # Set helpful variables.
 # :: These variables are readonly wide.