New Docker workflow (#13)

Author: dersimn

.dockerignore

@@ -0,0 +1,24 @@
+/node_modules
+/doc
+/testscripts*
+/.nyc_output
+/test.js
+/Gulpfile.js
+/coverage
+/mockdate.js
+/.npmignore
+
+
+## Git
+/.git
+/.gitignore
+
+## Docker
+Dockerfile
+/.dockerignore
+
+## macOS
+.DS_Store
+.AppleDouble
+.LSOverride
+._*

Dockerfile

@@ -1,8 +1,17 @@
+FROM node as jsbuilder
+
+COPY . /app
+WORKDIR /app
+
+RUN npm install
+
+# ---------------------------------------------------------
+
 FROM node:slim
 
-COPY . /node
+COPY --from=jsbuilder /app /app
 
-RUN cd /node && \
-	npm install
+WORKDIR /app
 
-ENTRYPOINT [ "node", "/node/index.js" ]
+EXPOSE 3000
+ENTRYPOINT [ "node", "index.js" ]

Dockerfile.armhf

@@ -54,15 +54,15 @@ To run with Docker, use either a [pre-build image](https://hub.docker.com/r/ders
 
 becomes
 
-```docker run dersimn/mqtt-scripts --help```
+```docker run dersimn/mqtt-scripts:1 --help```
 
 An example for a productive configuration would be:
 
 ```
 docker run -d --restart=always --name=logic \
     -e "TZ=Europe/Berlin" \
     -v /opt/hma/etc/scripts:/scripts:ro \
-    dersimn/mqtt-scripts \
+    dersimn/mqtt-scripts:1 \
     --url mqtt://10.1.1.50 \
     --dir /scripts
 ```
@@ -72,19 +72,16 @@ Configure via `MQTTSCRIPTS_` env variables when using Docker Compose.
 
 #### Build
 
-To build a Docker image yourself use the following workflow:
+Docker development build:
 
-```
-git clone https://github.com/hobbyquaker/mqtt-scripts.git
-cd mqtt-scripts
-docker build -t mqtt-scripts .
-```
+    docker build -t mqtt-scripts .
+    docker run --rm mqtt-scripts --help
 
-To build for the Raspberry Pi, run:
+Docker Hub deploy:
 
-```
-docker build -t mqtt-scripts:armhf -f Dockerfile.armhf .
-```
+    docker buildx create --name mybuilder
+    docker buildx use mybuilder
+    docker buildx build --platform linux/amd64,linux/arm/v7 -t dersimn/mqtt-scripts:1 -t dersimn/mqtt-scripts:1.x.x --push .
 
 
 # Command Line Options