Reduced agent image size to 130mb

Author: Stono

Dockerfile

@@ -16,6 +16,8 @@ RUN addgroup nonroot && \
     chown nonroot:nonroot /app
 
 USER nonroot
+RUN mkdir -p /home/nonroot/.npm
+VOLUME /home/nonroot/.npm
 COPY package.json ./
 RUN npm install --production
 COPY --chown=nonroot:nonroot --from=build /app/built /app/

README.md

@@ -13,7 +13,7 @@ Once you've got it up and going, you can plot some pretty dashboards like this:
 **Known Issues**:
 
 - It's super, mega pre-alpha, the product of a weekends experimentation - so don't expect it to be perfect. I plan to improve it.
-- It's written in [nodejs](https://nodejs.org/en) which means the docker image is 180mb. That's not huge, but it isn't golang small either.
+- It's written in [nodejs](https://nodejs.org/en) which means the docker image is 130mb. That's not huge, but it isn't golang small either.
 - If you've got nodes coming up and down frequently, eventual consistency means that you might get some test failures as an agent is testing a node that's gone (but is yet to get an updated agent list). I plan to tackle this with push agent updates.
 
 ## Architecture

docker-compose.yml

@@ -4,8 +4,6 @@ services:
     image: stono/kconmon:${VERSION:-latest}
     build:
       context: '.'
-      cache_from:
-        - stono/kconmon:latest
       args:
         NODEJS_VERSION: 14.4.0
     command: 'node lib/apps/controller/index.js'