Image build fails when runtime deps fail to download.

README.md

@@ -59,7 +59,7 @@ module.exports = function (context, payload) {
 ```
 
 ```bash
-$ dispatch create function nodejs-mylibs math-js ./demo.js
+$ dispatch create function math-js ./demo.js --image=nodejs-mylibs --handler=demo.js
 ```
 
 Make sure the function status is `READY` (it normally goes from `INITIALIZED` to `READY`):

function-template/Dockerfile

@@ -10,9 +10,9 @@ COPY . .
 
 # Create handler file if passed in otherwise assume default handler
 RUN echo -n ${HANDLER} > /tmp/handler
-RUN [ -z "${HANDLER}" ] && \
-    [ $(ls *.js | wc -l) -eq "1" ] && \
-    ls *.js > /tmp/handler || :
+RUN if [ -z "${HANDLER}" ]; then \
+    ([ $(ls *.js | wc -l) -eq "1" ] || (echo "Exactly 1 source file needed when HANDLER is empty" >&2 && exit 1)) && \
+    ls *.js > /tmp/handler; fi
 
 # Validate function file and given handler
 RUN node /validator/validator.js ${WORKDIR}/$(cat /tmp/handler) || (echo "Invalid function file or handler" >&2 && exit 1)

image-template/Dockerfile

@@ -8,12 +8,12 @@ ARG SYSTEM_PACKAGES_FILE=system-packages.txt
 COPY ${SYSTEM_PACKAGES_FILE} .
 
 RUN packages=$(cat ${SYSTEM_PACKAGES_FILE} | sed 's/ /-/' | uniq | paste -d' ' -); \
-    [ -n "${packages}" ] && tdnf install -y ${packages} || :
+    if [ -n "${packages}" ]; then tdnf install -y ${packages}; fi
 
 
-WORKDIR ${WORKDIR}/..
+WORKDIR /
 
 ARG PACKAGES_FILE=packages.txt
 COPY ${PACKAGES_FILE} package.json
 
-RUN pj=$(cat package.json); [ -n "${pj}" ] && npm install || :
+RUN pj=$(cat package.json); if [ -n "${pj}" ]; then npm install; fi

version.txt

@@ -1 +1 @@
-0.0.9
+0.0.10