include healthcheck in default actions

.github/workflows/build-workflow.yml

@@ -28,7 +28,7 @@ jobs:
             echo ::set-output name=version::${GITHUB_SHA::8}
           fi
           echo ::set-output name=build_date::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
-          echo ::set-output name=docker_platforms::linux/amd64,linux/arm/v6
+          echo ::set-output name=docker_platforms::linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64,linux/386
           echo ::set-output name=docker_image::bushrangers/ha-voltronic-mqtt
       -
         name: Checkout
@@ -60,7 +60,7 @@ jobs:
             --build-arg "VERSION=${{ steps.prepare.outputs.version }}" \
             --tag "${{ steps.prepare.outputs.docker_image }}:latest" \
             --tag "${{ steps.prepare.outputs.docker_image }}:${{ steps.prepare.outputs.version }}" \
-            --file Dockerfile .
+            --file Dockerfile.multiarch .
       -
         name: Clear
         if: always()

Dockerfile.dev

@@ -0,0 +1,25 @@
+FROM debian:stretch
+
+RUN apt update && apt install -y \
+        curl \
+        git \
+        build-essential \
+        cmake \
+        jq \
+        mosquitto-clients
+
+ADD sources/ /opt/
+ADD config/ /etc/inverter/
+
+RUN cd /opt/inverter-cli && \
+    mkdir bin && cmake . && make && mv inverter_poller bin/
+
+HEALTHCHECK \
+    --interval=30s \
+    --timeout=10s \
+    --start-period=1m \
+    --retries=3 \
+  CMD /opt/healthcheck
+
+WORKDIR /opt
+ENTRYPOINT ["/bin/bash", "/opt/inverter-mqtt/entrypoint.sh"]

Dockerfile.multiarch

@@ -26,5 +26,12 @@ ADD config/ /etc/inverter/
 RUN cd /opt/inverter-cli && \
     mkdir bin && cmake . && make && mv inverter_poller bin/
 
+HEALTHCHECK \
+    --interval=30s \
+    --timeout=10s \
+    --start-period=1m \
+    --retries=3 \
+  CMD /opt/healthcheck
+
 WORKDIR /opt
 ENTRYPOINT ["/bin/bash", "/opt/inverter-mqtt/entrypoint.sh"]

README.md

@@ -29,7 +29,7 @@ grafana-example.jpg
 
 **Docker Hub:** [`bushrangers/ha-voltronic-mqtt`](https://hub.docker.com/r/bushrangers/ha-voltronic-mqtt/)
 
-![License](https://img.shields.io/github/license/ned-kelly/docker-voltronic-homeassistant.svg) ![Docker Pulls](https://img.shields.io/docker/pulls/bushrangers/ha-voltronic-mqtt.png)
+![License](https://img.shields.io/github/license/ned-kelly/docker-voltronic-homeassistant.svg) ![Docker Pulls](https://img.shields.io/docker/pulls/bushrangers/ha-voltronic-mqtt.png) ![buildx](https://github.com/ned-kelly/docker-voltronic-homeassistant/workflows/buildx/badge.svg)
 
 ## Prerequisites
 
@@ -64,7 +64,11 @@ docker-compose up -d
 
 ```
 
-_**Note:** builds on docker hub are currently for x64 -- If you have issues standing up the image on your Linux distribution (i.e. Your Raspberry Pi/ARM device) you will need to manually build the image - This can be done by uncommenting the build flag in your docker-compose.yml file._
+_**Note:**_
+
+  - builds on docker hub are currently for `linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64,linux/386` -- If you have issues standing up the image on your Linux distribution (i.e. An old Pi/ARM device) you may need to manually build the image to support your local device architecture - This can be done by uncommenting the build flag in your docker-compose.yml file.
+  
+  - The default `docker-compose.yml` file includes Watchtower, which can be  configured to auto-update this image when we push new changes to github - Please **uncomment if you wish to auto-update to the latest builds of this project**.
 
 ## Integrating into Home Assistant.
 

docker-compose.yml

@@ -1,10 +1,16 @@
-version: '2'
+version: '3'
 
 services:
   voltronic-mqtt:
 
-    build: .
-    #image: bushrangers/ha-voltronic-mqtt
+    # We're now (finally) supporting Multi-Arch builds (via Github actions) on Docker Hub!
+    # image: bushrangers/ha-voltronic-mqtt
+
+    # Uncomment if you want to build your own local version.
+    build:
+      context: .
+      dockerfile: Dockerfile.dev
+
 
     container_name: voltronic-mqtt
 
@@ -26,3 +32,19 @@ services:
       - /dev/ttyS0:/dev/ttyS0
       - /dev/ttyS1:/dev/ttyS1
       - /dev/ttyS2:/dev/ttyS2
+
+  # Used to auto-update images as we release new versions...
+  watchtower:
+    # Please see the following for configuration options:
+    #    https://containrrr.github.io/watchtower/container-selection/
+    image: containrrr/watchtower
+    container_name: watchtower
+
+    restart: always
+    privileged: true
+
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+
+    command: --interval 500
+

sources/healthcheck

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+PROC=`ps cax | grep -E "mqtt-subscriber|mosquitto_sub|watch" | awk '{print $5}' | sort -u | wc -l`
+
+if [ "$PROC" -eq "3" ] ; then
+    exit 0
+else
+    exit 99
+fi