Feature/846 async logging (#103)

* Add dep:* scripts, upgrade to latest versions

* Bump package version to 8.6.0

* Update environment variable to be correct for central-services-logger

Dockerfile

@@ -1,25 +1,33 @@
-FROM node:10.15.3-alpine
+FROM node:10.15.3-alpine as builder
 USER root
 
 WORKDIR /opt/central-event-processor
 
 RUN apk --no-cache add git
 RUN apk add --no-cache -t build-dependencies make gcc g++ python libtool autoconf automake \
-    && cd $(npm root -g)/npm \
-    && npm config set unsafe-perm true \
-    && npm install -g node-gyp
+  && cd $(npm root -g)/npm \
+  && npm config set unsafe-perm true \
+  && npm install -g node-gyp
 
 COPY package.json package-lock.json* /opt/central-event-processor/
 
-RUN npm install --production && \
-  npm uninstall -g npm
+RUN npm install
 
 COPY src /opt/central-event-processor/src
 COPY config /opt/central-event-processor/config
 COPY app.js /opt/central-event-processor/
 COPY docs /opt/central-event-processor/docs
 
-RUN apk del build-dependencies
+FROM node:10.15.3-alpine
+
+WORKDIR /opt/central-event-processor
+
+COPY --from=builder /opt/central-event-processor .
+RUN npm prune --production
+
+# Create empty log file & link stdout to the application log file
+RUN mkdir ./logs && touch ./logs/combined.log
+RUN ln -sf /dev/stdout ./logs/combined.log
 
 EXPOSE 3080
 CMD node app.js

docker-compose.yml

@@ -11,6 +11,8 @@ services:
     volumes:
       # override the default values with our own - this is because we can't set the kafka and mongo hosts dynamically
       - ./docker/central-event-processor/default.json:/opt/central-event-processor/config/default.json
+    environment:
+      - CSL_LOG_TRANSPORT=file
 
   ml-api-adapter:
     image: mojaloop/ml-api-adapter:latest