update dockerfile

Author: metalwarrior665

Diff for: Dockerfile

@@ -1,14 +1,33 @@
-FROM apify/actor-node-chrome
+# First, specify the base Docker image. You can read more about
+# the available images at https://sdk.apify.com/docs/guides/docker-images
+# You can also use any other image from Docker Hub.
+FROM apify/actor-node:16
 
-# Copy source code
-COPY . ./
+# Second, copy just package.json and package-lock.json since it should be
+# the only file that affects "npm install" in the next step, to speed up the build
+COPY package*.json ./
 
-# Install default dependencies, print versions of everything
+# Install NPM packages, skip optional and development dependencies to
+# keep the image small. Avoid logging too much and print the dependency
+# tree for debugging
 RUN npm --quiet set progress=false \
  && npm install --only=prod --no-optional \
  && echo "Installed NPM packages:" \
- && npm list \
+ && (npm list --only=prod --no-optional --all || true) \
  && echo "Node.js version:" \
  && node --version \
  && echo "NPM version:" \
  && npm --version
+
+# Next, copy the remaining files and directories with the source code.
+# Since we do this after NPM install, quick build will be really fast
+# for most source file changes.
+COPY . ./
+
+# Optionally, specify how to launch the source code of your actor.
+# By default, Apify's base Docker images define the CMD instruction
+# that runs the Node.js source code using the command specified
+# in the "scripts.start" section of the package.json file.
+# In short, the instruction looks something like this:
+#
+# CMD npm start