first try (#13)

.github/workflows/create-docker-exporter.yml

@@ -0,0 +1,23 @@
+name: create docker exporter
+on:
+  workflow_dispatch:
+    branches:
+      - master
+jobs:
+  create-docker-bridge:
+    name: create docker Domotik Exporter
+    runs-on: ubuntu-latest
+    steps:
+      - uses: docker/setup-qemu-action@v2
+      - uses: docker/setup-buildx-action@v2
+      - uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - uses: docker/build-push-action@v2
+        with:
+          context: '{{defaultContext}}:exporter'
+          push: true
+          platforms: linux/amd64,linux/arm64
+          tags: ghcr.io/sylvek/domotik-exporter:latest

exporter/Dockerfile

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+FROM ruby:slim
+RUN gem install sqlite3 httparty
+COPY main.rb /main.rb
+CMD ["ruby", "main.rb"]

exporter/main.rb

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+require 'sqlite3'
+require 'httparty'
+
+entrypoint = ENV['ENTRYPOINT']
+db = SQLite3::Database.new ENV['DATABASE']
+
+db.execute("SELECT ts,value FROM data WHERE name='daily_power_consumption' ORDER BY ts DESC LIMIT 1") do |row| 
+    title = "#{row[1].to_i/1000.0} kW.h"
+    response = HTTParty.get("#{entrypoint}?title=#{title}&timestamp=#{row[0]}")
+    puts response.body
+end