add index.js to node executable

packages/dnslink-api/Dockerfile

@@ -9,4 +9,4 @@ RUN yarn
 COPY src/* src/
 
 EXPOSE 3100
-CMD node src
+CMD node src/index.js

packages/handshake-api/Dockerfile

@@ -15,4 +15,4 @@ ENV HSD_API_KEY="foo"
 
 EXPOSE 3100
 ENV NODE_ENV production
-CMD [ "node src" ]
+CMD node src/index.js

packages/health-check/Dockerfile

@@ -30,5 +30,5 @@ CMD [ "sh", "-c", \
       "dnsmasq --no-resolv --log-facility=/var/log/dnsmasq.log --address=/siasky.net/$(node src/whatismyip.js) --server=127.0.0.11 ; \
        echo \"$(sed 's/127.0.0.11/127.0.0.1/' /etc/resolv.conf)\" > /etc/resolv.conf ; \
        crond ; \
-       node src" \
+       node src/index.js" \
     ]