Dockerfile

@@ -1,5 +1,5 @@
 # Use buildx for multi-architecture support
-FROM --platform=${BUILDPLATFORM} golang:1.23 AS builder
+FROM --platform=${BUILDPLATFORM} golang:1.22 AS builder
 
 WORKDIR /app
 
@@ -11,10 +11,7 @@ RUN go mod download
 COPY . .
 
 # Build the application for the specified target architecture
-# https://www.docker.com/blog/faster-multi-platform-builds-dockerfile-cross-compilation-guide/
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=${TARGETARCH} go build -o opendtu-logger .
-# Declare TARGETOS and TARGETARCH in the local scope so they can be used in the build stage.
-ARG TARGETOS TARGETARCH
-RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -o opendtu-logger .
 
 # Create a minimal runtime image
 FROM --platform=${TARGETPLATFORM} scratch

README.md

@@ -9,20 +9,7 @@ OpenDTU logger adds detailed, long-term storage and visualisation of Hoymiles so
 
 ![PV dashboard in dark mode](https://git.hollander.online/energy/opendtu-logger/raw/commit/a3debb78665641fe7101555d85df89eb0f0d2a79/screenshots/PV-overview-dark-mode.png)
 
-## OpenDTU logger installation instructions
+## Configuring OpenDTU
-
-OpenDTU logger can be installed in different ways:
-
-1. Using the [Home Assistant add-on repository](https://git.hollander.online/energy/home-assistant-addons).
-2. Using [Docker Compose](#docker-compose)
-3. Using the binary available on the [releases page](https://git.hollander.online/energy/opendtu-logger/releases)
-4. Compiling the code yourself.
-
-Using the Home Assistant add-on or Docker Compose is the preferred way to install OpenDTU Logger.
-
-Installation on Home Assistant can be done by adding the [Home Assistant add-on repository](https://git.hollander.online/energy/home-assistant-addons) to the Home Assistant add-on store and following the instructions provided. Other installation methods are described below.
-
-### Configuring OpenDTU
 
 In order for OpenDTU Logger to work properly, it is required to ensure the following OpenDTU settings are used.
 
@@ -32,8 +19,19 @@ In order for OpenDTU Logger to work properly, it is required to ensure the follo
 - Click `Save`
 - Repeat this procedure for every inverter.
 
+## OpenDTU logger installation instructions
 
-### Docker Compose
+Docker Compose is the preferred way to install OpenDTU Logger, but using the binary is also possible.
+
+### Docker
+
+```sh
+docker pull git.hollander.online/energy/opendtu-logger:0.0
+```
+
+Preferably, run the Docker image using the Docker compose examples provided in the `./docker` folder.
+
+#### Docker Compose
 
 The `docker` folder in this [repository](https://git.hollander.online/energy/opendtu-logger) contains example Docker compose files. The `compose.with-database-grafana.yml` file contains a full setup suitable for a standalone deployment. The other compose files are aimed at integration into existing environments.
 

docker/compose.with-database-grafana.yml

@@ -22,17 +22,13 @@ services:
       retries: 20
 
   opendtu-logger:
-    image: git.hollander.online/energy/opendtu-logger:latest
+    image: git.hollander.online/energy/opendtu-logger:main
     restart: always
     environment:
       DB_URL: ${DB_URL}
-      OPENDTU_ADDRESS: ${OPENDTU_ADDRESS}
+      REMOTE_URL: ${REMOTE_URL}
-      OPENDTU_AUTH: ${OPENDTU_AUTH}
-      OPENDTU_USERNAME: ${OPENDTU_USERNAME}
-      OPENDTU_PASSWORD: ${OPENDTU_PASSWORD}
       TIMESCALEDB_ENABLED: ${TIMESCALEDB_ENABLED}
       TZ: ${TZ}
-      LOG_LEVEL: ${LOG_LEVEL}
     depends_on:
       timescaledb:
         condition: service_healthy

docker/compose.with-database.yml

@@ -23,17 +23,12 @@ services:
 
   opendtu-logger:
     restart: always
-    image: git.hollander.online/energy/opendtu-logger:latest
+    image: git.hollander.online/energy/opendtu-logger:main
     environment:
       DB_URL: ${DB_URL}
-      OPENDTU_ADDRESS: ${OPENDTU_ADDRESS}
+      REMOTE_URL: ${REMOTE_URL}
-      OPENDTU_AUTH: ${OPENDTU_AUTH}
-      OPENDTU_USERNAME: ${OPENDTU_USERNAME}
-      OPENDTU_PASSWORD: ${OPENDTU_PASSWORD}
       TIMESCALEDB_ENABLED: ${TIMESCALEDB_ENABLED}
       TZ: ${TZ}
-      LOG_LEVEL: ${LOG_LEVEL}
-
     depends_on:
       timescaledb:
         condition: service_healthy

docker/compose.yml

@@ -2,16 +2,12 @@ version: '3.8'
 services:
   opendtu-logger:
     restart: always
-    image: git.hollander.online/energy/opendtu-logger:latest
+    image: git.hollander.online/energy/opendtu-logger:main
     environment:
       DB_URL: ${DB_URL}
-      OPENDTU_ADDRESS: ${OPENDTU_ADDRESS}
+      REMOTE_URL: ${REMOTE_URL}
-      OPENDTU_AUTH: ${OPENDTU_AUTH}
-      OPENDTU_USERNAME: ${OPENDTU_USERNAME}
-      OPENDTU_PASSWORD: ${OPENDTU_PASSWORD}
       TIMESCALEDB_ENABLED: ${TIMESCALEDB_ENABLED}
       TZ: ${TZ}
-      LOG_LEVEL: ${LOG_LEVEL}
     depends_on:
       timescaledb:
         condition: service_healthy

docker/example.env

@@ -1,11 +0,0 @@
-# OpenDTU
-OPENDTU_ADDRESS="192.168.1.89:80"
-OPENDTU_AUTH=false
-OPENDTU_USERNAME=admin
-OPENDTU_PASSWORD=
-
-# OpenDTU Logger
-DB_URL="host=timescaledb port=5432 user=postgres password=secret dbname=opendtu_logger sslmode=disable"
-TIMESCALEDB_ENABLED=true
-TZ="Europe/Amsterdam"
-LOG_LEVEL=INFO"

docker/example.with-database.env

@@ -1,15 +1,8 @@
-# OpenDTU
-OPENDTU_ADDRESS="192.168.1.89:80"
-OPENDTU_AUTH=false
-OPENDTU_USERNAME=admin
-OPENDTU_PASSWORD=
-
 # OpenDTU Logger
+REMOTE_URL="192.168.1.89:80"
 DB_URL="host=timescaledb port=5432 user=postgres password=secret dbname=opendtu_logger sslmode=disable"
 TIMESCALEDB_ENABLED=true
 TZ="Europe/Amsterdam"
-LOG_LEVEL=INFO"
-
 # Database configuration
 PG_USER=postgres
 PG_PASSWORD=

go.mod

@@ -1,16 +1,10 @@
 module git.hollander.online/energy/opendtu-logger
 
-go 1.23
+go 1.22
 
 require (
-	github.com/gorilla/websocket v1.5.3
+	github.com/gorilla/websocket v1.5.1
 	github.com/lib/pq v1.10.9
-	github.com/pressly/goose/v3 v3.22.0
 )
 
-require (
+require golang.org/x/net v0.17.0 // indirect
-	github.com/mfridman/interpolate v0.0.2 // indirect
-	github.com/sethvargo/go-retry v0.3.0 // indirect
-	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/sync v0.8.0 // indirect
-)

go.sum

@@ -1,50 +1,6 @@
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/gorilla/websocket v1.5.1 h1:gmztn0JnHVt9JZquRuzLw3g4wouNVzKL15iLr/zn/QY=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/gorilla/websocket v1.5.1/go.mod h1:x3kM2JMyaluk02fnUJpQuwD2dCS5NDG2ZHL0uE0tcaY=
-github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
-github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
-github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
-github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
-github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
-github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
-github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
 github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
 github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
-github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+golang.org/x/net v0.17.0 h1:pVaXccu2ozPjCXewfr1S7xza/zcXTity9cCdXQYSjIM=
-github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
-github.com/mfridman/interpolate v0.0.2 h1:pnuTK7MQIxxFz1Gr+rjSIx9u7qVjf5VOoM/u6BbAxPY=
-github.com/mfridman/interpolate v0.0.2/go.mod h1:p+7uk6oE07mpE/Ik1b8EckO0O4ZXiGAfshKBWLUM9Xg=
-github.com/ncruces/go-strftime v0.1.9 h1:bY0MQC28UADQmHmaF5dgpLmImcShSi2kHU9XLdhx/f4=
-github.com/ncruces/go-strftime v0.1.9/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/pressly/goose/v3 v3.22.0 h1:wd/7kNiPTuNAztWun7iaB98DrhulbWPrzMAaw2DEZNw=
-github.com/pressly/goose/v3 v3.22.0/go.mod h1:yJM3qwSj2pp7aAaCvso096sguezamNb2OBgxCnh/EYg=
-github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
-github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
-github.com/sethvargo/go-retry v0.3.0 h1:EEt31A35QhrcRZtrYFDTBg91cqZVnFL2navjDrah2SE=
-github.com/sethvargo/go-retry v0.3.0/go.mod h1:mNX17F0C/HguQMyMyJxcnU471gOZGxCLyYaFyAZraas=
-github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
-github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
-go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
-golang.org/x/sync v0.8.0 h1:3NFvSEYkUoMifnESzZl15y791HH1qU2xm6eCJU5ZPXQ=
-golang.org/x/sync v0.8.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
-golang.org/x/sys v0.22.0 h1:RI27ohtqKCnwULzJLqkv897zojh5/DwS/ENaMzUOaWI=
-golang.org/x/sys v0.22.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-modernc.org/gc/v3 v3.0.0-20240107210532-573471604cb6 h1:5D53IMaUuA5InSeMu9eJtlQXS2NxAhyWQvkKEgXZhHI=
-modernc.org/gc/v3 v3.0.0-20240107210532-573471604cb6/go.mod h1:Qz0X07sNOR1jWYCrJMEnbW/X55x206Q7Vt4mz6/wHp4=
-modernc.org/libc v1.55.3 h1:AzcW1mhlPNrRtjS5sS+eW2ISCgSOLLNyFzRh/V3Qj/U=
-modernc.org/libc v1.55.3/go.mod h1:qFXepLhz+JjFThQ4kzwzOjA/y/artDeg+pcYnY+Q83w=
-modernc.org/mathutil v1.6.0 h1:fRe9+AmYlaej+64JsEEhoWuAYBkOtQiMEU7n/XgfYi4=
-modernc.org/mathutil v1.6.0/go.mod h1:Ui5Q9q1TR2gFm0AQRqQUaBWFLAhQpCwNcuhBOSedWPo=
-modernc.org/memory v1.8.0 h1:IqGTL6eFMaDZZhEWwcREgeMXYwmW83LYW8cROZYkg+E=
-modernc.org/memory v1.8.0/go.mod h1:XPZ936zp5OMKGWPqbD3JShgd/ZoQ7899TUuQqxY+peU=
-modernc.org/sqlite v1.32.0 h1:6BM4uGza7bWypsw4fdLRsLxut6bHe4c58VeqjRgST8s=
-modernc.org/sqlite v1.32.0/go.mod h1:UqoylwmTb9F+IqXERT8bW9zzOWN8qwAIcLdzeBZs4hA=
-modernc.org/strutil v1.2.0 h1:agBi9dp1I+eOnxXeiZawM8F4LawKv4NzGWSaLfyeNZA=
-modernc.org/strutil v1.2.0/go.mod h1:/mdcBmfOibveCTBxUl5B5l6W+TTH1FXPLHZE6bTosX0=
-modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=
-modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=

main.go

@@ -1,30 +1,25 @@
 // TODO: Storage optimisation: Map inverter serial to shorter serial. Use that for referring.
+// TODO: Use username and password provided using Basic Authentication.
 // TODO: Record Inverter struct data only on-change.
 // Idea: Make a full admin / config GUI and only configure through this utility.
 // Idea: Gather settings only on start-up.
 // TODO: Only update meter readings such as yieldday, yieldtotal on-change.
-// TODO: Add a health check endpoint, potentially log to it.
+// TODO: Implement proper DB migrations.
-// TODO: Add support for monitoring multiple OpenDTU's at once.
 package main
 
 import (
 	"database/sql"
-	"encoding/base64"
 	"encoding/json"
 	"fmt"
-	"io/fs"
 	"log"
 	"log/slog"
 	"net/http"
 	"os"
-	"strconv"
 	"time"
 	_ "time/tzdata"
 
-	"git.hollander.online/energy/opendtu-logger/migrations"
 	"github.com/gorilla/websocket"
 	_ "github.com/lib/pq"
-	"github.com/pressly/goose/v3"
 )
 
 // VUD contains three variables used for most metrics sent by OpenDTU:
@@ -148,138 +143,14 @@ type InverterSettingsData struct {
 	Inverters []InverterSettings `json:"inverter"`
 }
 
-// Config settings struct
-type Config struct {
-	DB              string `json:"db"`
-	OpenDTUAddress  string `json:"opendtu_address"`
-	OpenDTUAuth     bool   `json:"opendtu_auth"`
-	OpenDTUUser     string `json:"opendtu_username"`
-	OpenDTUPassword string `json:"opendtu_password"`
-	TimescaleDB     bool   `json:"timescaledb"`
-	TZ              string `json:"tz"`
-	LogLevel        string `json:"log_level"`
-}
-
 var logger = slog.New(slog.NewJSONHandler(os.Stdout, nil))
-var config Config
-
-// LoadConfig attempts to read the configuration from options.json
-// If it fails, it falls back to using environment variables
-func loadConfig() Config {
-	configFilePath := os.Getenv("CONFIG_FILE")
-	if configFilePath == "" {
-		configFilePath = "/data/options.json"
-	}
-
-	data, err := os.ReadFile(configFilePath)
-	if err == nil {
-		// Successfully read the file, parse the JSON
-		err = json.Unmarshal(data, &config)
-		if err != nil {
-			log.Fatalf("Error parsing config file: %v", err)
-		}
-		if config.DB == "" {
-			log.Fatal("db connection settings are not set")
-		}
-		if config.OpenDTUAddress == "" {
-			log.Fatal("opendtu_address is not set")
-		}
-		if config.OpenDTUAuth {
-			if config.OpenDTUUser == "" {
-				log.Fatal("opendtu_username is not set, while opendtu_auth is set to enabled. Set opendtu_auth to false or set username")
-			}
-			if config.OpenDTUPassword == "" {
-				log.Fatal("opendtu_password is not set, while opendtu_auth is set to enabled. Set opendtu_auth to false or set password")
-			}
-		}
-	} else {
-		logger.Info("JSON config file not found. Falling back to environment variables.")
-		// Fallback to environment variables
-		config.DB = os.Getenv("DB_URL")
-		if config.DB == "" {
-			log.Fatal("DB_URL environment variable is not set.")
-		}
-		config.OpenDTUAddress = os.Getenv("OPENDTU_ADDRESS")
-		if config.OpenDTUAddress == "" {
-			log.Fatal("OPENDTU_ADDRESS environment variable is not set.")
-		}
-
-		openDTUAuthStr := os.Getenv("OPENDTU_AUTH")
-		if openDTUAuthStr != "" {
-			openDTUAuth, err := strconv.ParseBool(openDTUAuthStr)
-			if err != nil {
-				log.Fatalf("Error parsing OPENDTU_AUTH: %v", err)
-			}
-			config.OpenDTUAuth = openDTUAuth
-		}
-		if config.OpenDTUAuth {
-			config.OpenDTUUser = os.Getenv("OPENDTU_USERNAME")
-			if config.OpenDTUUser == "" {
-				log.Fatal("OPENDTU_USERNAME environment variable is not set.")
-			}
-			config.OpenDTUPassword = os.Getenv("OPENDTU_PASSWORD")
-			if config.OpenDTUPassword == "" {
-				log.Fatal("OPENDTU_PASSWORD environment variable is not set.")
-			}
-
-		}
-
-		timescaleDBStr := os.Getenv("TIMESCALEDB_ENABLED")
-		if timescaleDBStr != "" {
-			timescaleDB, err := strconv.ParseBool(timescaleDBStr)
-			if err != nil {
-				log.Fatalf("Error parsing TIMESCALEDB_ENABLED: %v", err)
-			}
-			config.TimescaleDB = timescaleDB
-		}
-		config.TZ = os.Getenv("TZ")
-		config.LogLevel = os.Getenv("LOG_LEVEL")
-	}
-	_, err = time.LoadLocation(config.TZ)
-	if err != nil {
-		logger.Warn("invalid timezone")
-	}
-
-	return config
-}
-
-// Helper function to map environment variable to slog.Level
-func getLogLevel(defaultLevel slog.Level) slog.Level {
-	logLevelStr := config.LogLevel
-	switch logLevelStr {
-	case "DEBUG":
-		return slog.LevelDebug
-	case "INFO":
-		return slog.LevelInfo
-	case "WARN":
-		return slog.LevelWarn
-	case "ERROR":
-		return slog.LevelError
-	default:
-		return defaultLevel
-	}
-}
-
-// Function to create a new logger with a specified log level
-func createLoggerWithLevel(level slog.Level) *slog.Logger {
-	return slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
-		Level: level,
-	}))
-}
 
 // Main program
 func main() {
 	// Initial logger setup
 	slog.SetDefault(logger)
 
-	// Load the configuration
+	dbConnStr := (os.Getenv("DB_URL"))
-	config := loadConfig()
-
-	// Set the logLevel
-	logLevel := getLogLevel(slog.LevelInfo) // Default to info level
-	logger = createLoggerWithLevel(logLevel)
-
-	dbConnStr := config.DB
 	// Connect to PostgreSQL
 	db, err := sql.Open("postgres", dbConnStr)
 	if err != nil {
@@ -288,21 +159,17 @@ func main() {
 	defer db.Close()
 
 	// Create tables if they don't exist
-	migrateDB(db)
+	createTables(db)
 
-	// Create WebSocket URL from config variable
+	// Get WebSocket URL from environment variable
-	wsURL := "ws://" + config.OpenDTUAddress + "/livedata"
+	RemoteURL := os.Getenv("REMOTE_URL")
-
+	wsURL := "ws://" + RemoteURL + "/livedata"
-	logger.Debug(wsURL)
+	if wsURL == "" {
-
+		log.Fatal("WEBSOCKET_URL environment variable is not set.")
-	// Create headers with optional Basic Auth
-	headers := http.Header{}
-	if config.OpenDTUAuth {
-		headers.Set("Authorization", basicAuth(config.OpenDTUUser, config.OpenDTUPassword))
 	}
 
 	// Establish WebSocket connection
-	c, _, err := websocket.DefaultDialer.Dial(wsURL, headers)
+	c, _, err := websocket.DefaultDialer.Dial(wsURL, nil)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -313,8 +180,6 @@ func main() {
 		log.Fatal(err)
 	}
 
-	logger.Info("OpenDTU Logger has been successfully initialised. Starting data recording...")
-
 	// Start listening for WebSocket messages
 	go func() {
 		for {
@@ -371,16 +236,124 @@ func handleMessage(message []byte, db *sql.DB) {
 	}
 }
 
-func migrateDB(db *sql.DB) {
+func createTables(db *sql.DB) {
+	// Execute SQL statements to create tables if they don't exist
+	// inverter_serial is TEXT as some non-Hoymiles inverters use non-numeric serial numbers.
+	// An additional advantage is that it makes plotting in Grafana easier.
 	// TODO: Foreign keys commented out as TimescaleDB hypertables don't support them.
+	createTableSQL := `
+	CREATE TABLE IF NOT EXISTS opendtu_log (
+		timestamp TIMESTAMPTZ UNIQUE DEFAULT CURRENT_TIMESTAMP,
+		power NUMERIC,
+		yieldday NUMERIC,
+		yieldtotal NUMERIC
+	);
 	
-	// Perform DB migrations
+	CREATE TABLE IF NOT EXISTS opendtu_inverters (
-	err := migrateFS(db, migrations.FS, ".")
+		timestamp TIMESTAMPTZ,
+		-- FOREIGN KEY (timestamp) REFERENCES opendtu_log(timestamp),
+		inverter_serial TEXT,
+		name TEXT,
+		producing BOOL,
+		limit_relative NUMERIC,
+		limit_absolute NUMERIC
+	);
 	
+	CREATE TABLE IF NOT EXISTS opendtu_inverters_ac (
+		timestamp TIMESTAMPTZ,
+		-- FOREIGN KEY (timestamp) REFERENCES opendtu_log(timestamp),
+		inverter_serial TEXT,
+		ac_number INT,
+		power NUMERIC,
+		voltage NUMERIC,
+		current NUMERIC,
+		frequency NUMERIC,
+		powerfactor NUMERIC,
+		reactivepower NUMERIC
+	);
+	
+	CREATE TABLE IF NOT EXISTS opendtu_inverters_dc (
+		-- id SERIAL PRIMARY KEY,
+		timestamp TIMESTAMPTZ,
+		-- FOREIGN KEY (timestamp) REFERENCES opendtu_log(timestamp),
+		inverter_serial TEXT,
+     	dc_number INT,
+		name TEXT,
+		power NUMERIC,
+		voltage NUMERIC,
+		current NUMERIC,
+		yieldday NUMERIC,
+		yieldtotal NUMERIC,
+		irradiation NUMERIC
+	);
+	
+	CREATE TABLE IF NOT EXISTS opendtu_inverters_inv (
+		-- id SERIAL PRIMARY KEY,
+		timestamp TIMESTAMPTZ,
+		-- FOREIGN KEY (timestamp) REFERENCES opendtu_log(timestamp),
+		inverter_serial TEXT,
+		temperature NUMERIC,
+		power_dc NUMERIC,
+		yieldday NUMERIC,
+		yieldtotal NUMERIC,
+		efficiency NUMERIC
+	);
+
+	CREATE TABLE IF NOT EXISTS opendtu_events (
+		-- id SERIAL PRIMARY KEY,
+		timestamp TIMESTAMPTZ DEFAULT CURRENT_TIMESTAMP,
+		inverter_serial TEXT,
+		message_id INT,
+		message TEXT,
+		start_time INT,
+		end_time INT
+	);
+
+	DO $$
+	BEGIN
+		-- Check if start_timestamp column exists
+		IF NOT EXISTS (SELECT 1 FROM information_schema.columns 
+					WHERE table_name='opendtu_events' 
+					AND column_name='start_timestamp') THEN
+			-- Add start_timestamp column
+			ALTER TABLE opendtu_events 
+			ADD COLUMN start_timestamp TIMESTAMPTZ;
+		END IF;
+
+		-- Check if end_timestamp column exists
+		IF NOT EXISTS (SELECT 1 FROM information_schema.columns 
+					WHERE table_name='opendtu_events' 
+					AND column_name='end_timestamp') THEN
+			-- Add end_timestamp column
+			ALTER TABLE opendtu_events 
+			ADD COLUMN end_timestamp TIMESTAMPTZ;
+		END IF;
+	END $$;
+
+	CREATE TABLE IF NOT EXISTS opendtu_hints (
+		-- id SERIAL PRIMARY KEY,
+		timestamp TIMESTAMPTZ,
+		-- FOREIGN KEY (timestamp) REFERENCES opendtu_log(timestamp),
+		time_sync BOOL,
+		radio_problem BOOL,
+		default_password BOOL
+	);
+	
+	CREATE INDEX IF NOT EXISTS opendtu_log_timestamp_idx ON opendtu_log (timestamp);
+	CREATE INDEX IF NOT EXISTS opendtu_inverters_timestamp_idx ON opendtu_inverters (timestamp);
+	CREATE INDEX IF NOT EXISTS opendtu_inverters_ac_timestamp_idx ON opendtu_inverters_ac (timestamp);
+	CREATE INDEX IF NOT EXISTS opendtu_inverters_dc_timestamp_idx ON opendtu_inverters_dc (timestamp);
+	CREATE INDEX IF NOT EXISTS opendtu_inverters_inv_timestamp_idx ON opendtu_inverters_inv (timestamp);
+	CREATE INDEX IF NOT EXISTS opendtu_events_timestamp_idx ON opendtu_events (timestamp);
+	CREATE INDEX IF NOT EXISTS opendtu_hints_timestamp_idx ON opendtu_hints (timestamp);
+
+	`
+
+	_, err := db.Exec(createTableSQL)
 	if err != nil {
-		log.Fatal("Error performing database migrations: ", err)
+		log.Fatal("Error creating tables: ", err)
 	}
-	timescaleEnabled := config.TimescaleDB
+	timescaleEnabled := os.Getenv("TIMESCALEDB_ENABLED")
 
 	enableTimescaleDB := `
 	-- CREATE EXTENSION IF NOT EXISTS timescaledb;
@@ -392,7 +365,7 @@ func migrateDB(db *sql.DB) {
 	SELECT create_hypertable('opendtu_events', 'timestamp', if_not_exists => TRUE, migrate_data => TRUE);
 	SELECT create_hypertable('opendtu_hints', 'timestamp', if_not_exists => TRUE, migrate_data => TRUE);
 	`
-	if timescaleEnabled {
+	if timescaleEnabled == "true" {
 		_, err := db.Exec(enableTimescaleDB)
 		if err != nil {
 			log.Fatal("Error enabling TimescaleDB: ", err)
@@ -401,7 +374,7 @@ func migrateDB(db *sql.DB) {
 }
 
 func insertLiveData(db *sql.DB, inverter Inverter, total Total, hints Hints) {
-	timeZone := config.TZ
+	timeZone := os.Getenv("TZ")
 	loc, _ := time.LoadLocation(timeZone)
 	timestamp := time.Now().In(loc)
 
@@ -478,60 +451,16 @@ func insertLiveData(db *sql.DB, inverter Inverter, total Total, hints Hints) {
 
 }
 
-func migrate(db *sql.DB, dir string) error {
-	err := goose.SetDialect("postgres")
-	if err != nil {
-		return fmt.Errorf("migrate: %w", err)
-	}
-	err = goose.Up(db, dir)
-	if err != nil {
-		return fmt.Errorf("migrate: %w", err)
-	}
-	return nil
-
-}
-
-func migrateFS(db *sql.DB, migrationFS fs.FS, dir string) error {
-	// In case the dir is an empty string, they probably meant the current directory and goose wants a period for that.
-	if dir == "" {
-		dir = "."
-	}
-	goose.SetBaseFS(migrationFS)
-	defer func() {
-		// Ensure that we remove the FS on the off chance some other part of our app uses goose for migrations and doesn't want to use our FS.
-		goose.SetBaseFS(nil)
-	}()
-	return migrate(db, dir)
-}
-
 func queryEventsEndpoint(inverterSerial string) (*EventsResponse, error) {
-	endpoint := fmt.Sprintf("http://"+config.OpenDTUAddress+"/api/eventlog/status?inv=%s", inverterSerial)
+	remoteURL := os.Getenv("REMOTE_URL")
+	endpoint := fmt.Sprintf("http://"+remoteURL+"/api/eventlog/status?inv=%s", inverterSerial)
 
-	// Create a new HTTP request
+	resp, err := http.Get(endpoint)
-	req, err := http.NewRequest("GET", endpoint, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	if config.OpenDTUAuth {
-		// Add Basic Auth header
-		req.Header.Add("Authorization", basicAuth(config.OpenDTUUser, config.OpenDTUPassword))
-	}
-
-	// Send the request
-	client := &http.Client{}
-	resp, err := client.Do(req)
 	if err != nil {
 		return nil, err
 	}
 	defer resp.Body.Close()
 
-	// Check for HTTP errors
-	if resp.StatusCode != http.StatusOK {
-		return nil, fmt.Errorf("HTTP request failed with status: %s", resp.Status)
-	}
-
-	// Decode the response
 	var eventsResponse EventsResponse
 	if err := json.NewDecoder(resp.Body).Decode(&eventsResponse); err != nil {
 		return nil, err
@@ -564,9 +493,7 @@ func getPreviousEventsCount(db *sql.DB, inverterSerial string) int {
 }
 
 func insertEvents(db *sql.DB, inverterSerial string, events *EventsResponse) {
-	timeZone := config.TZ
+	timestamp := time.Now()
-	loc, _ := time.LoadLocation(timeZone)
-	timestamp := time.Now().In(loc)
 
 	for _, event := range events.Events {
 		// Insert events data into the events table
@@ -609,12 +536,6 @@ func updateEvents(db *sql.DB, inverterSerial string, events *EventsResponse) {
 	}
 }
 
-// basicAuth generates the Basic Auth header value
-func basicAuth(username, password string) string {
-	credentials := username + ":" + password
-	return "Basic " + base64.StdEncoding.EncodeToString([]byte(credentials))
-}
-
 // TODO: finish this function.
 // func updateInverterConfig(db *sql.DB) {
 // 	// Periodically query the /api/inverter/list
@@ -633,8 +554,8 @@ func basicAuth(username, password string) string {
 // }
 
 // func queryConfigEndpoint() (*InverterSettingsData, error) {
-// 	openDTUAddress := os.Getenv("OPENDTU_ADDRESS")
+// 	remoteURL := os.Getenv("REMOTE_URL")
-// 	endpoint := fmt.Sprintf("http://" + openDTUAddress + "/api/inverter/list")
+// 	endpoint := fmt.Sprintf("http://" + remoteURL + "/api/inverter/list")
 
 // 	resp, err := http.Get(endpoint)
 // 	if err != nil {

migrations/00001_log.sql

@@ -1,14 +0,0 @@
--- +goose Up
--- +goose StatementBegin
-CREATE TABLE IF NOT EXISTS opendtu_log (
-    timestamp TIMESTAMPTZ UNIQUE DEFAULT CURRENT_TIMESTAMP,
-    power NUMERIC,
-    yieldday NUMERIC,
-    yieldtotal NUMERIC
-);
-
-CREATE INDEX IF NOT EXISTS opendtu_log_timestamp_idx ON opendtu_log (timestamp);
--- +goose StatementEnd
--- +goose Down
--- +goose StatementBegin
--- +goose StatementEnd

migrations/00002_inverters.sql

@@ -1,19 +0,0 @@
--- +goose Up
--- +goose StatementBegin
-CREATE TABLE IF NOT EXISTS opendtu_inverters (
-    timestamp TIMESTAMPTZ,
-    -- FOREIGN KEY (timestamp) REFERENCES opendtu_log(timestamp),
-    -- 	inverter_serial is TEXT as some non-Hoymiles inverters use non-numeric serial numbers.
-    -- 	An additional advantage is that it makes plotting in Grafana easier.
-    inverter_serial TEXT,
-    name TEXT,
-    producing BOOL,
-    limit_relative NUMERIC,
-    limit_absolute NUMERIC
-);
-
-CREATE INDEX IF NOT EXISTS opendtu_inverters_timestamp_idx ON opendtu_inverters (timestamp);
--- +goose StatementEnd
--- +goose Down
--- +goose StatementBegin
--- +goose StatementEnd

migrations/00003_inverters_ac.sql

@@ -1,20 +0,0 @@
--- +goose Up
--- +goose StatementBegin
-CREATE TABLE IF NOT EXISTS opendtu_inverters_ac (
-    timestamp TIMESTAMPTZ,
-    -- FOREIGN KEY (timestamp) REFERENCES opendtu_log(timestamp),
-    inverter_serial TEXT,
-    ac_number INT,
-    power NUMERIC,
-    voltage NUMERIC,
-    current NUMERIC,
-    frequency NUMERIC,
-    powerfactor NUMERIC,
-    reactivepower NUMERIC
-);
-
-CREATE INDEX IF NOT EXISTS opendtu_inverters_ac_timestamp_idx ON opendtu_inverters_ac (timestamp);
--- +goose StatementEnd
--- +goose Down
--- +goose StatementBegin
--- +goose StatementEnd

migrations/00004_inverters_dc.sql

@@ -1,22 +0,0 @@
--- +goose Up
--- +goose StatementBegin
-CREATE TABLE IF NOT EXISTS opendtu_inverters_dc (
-    -- id SERIAL PRIMARY KEY,
-    timestamp TIMESTAMPTZ,
-    -- FOREIGN KEY (timestamp) REFERENCES opendtu_log(timestamp),
-    inverter_serial TEXT,
-    dc_number INT,
-    name TEXT,
-    power NUMERIC,
-    voltage NUMERIC,
-    current NUMERIC,
-    yieldday NUMERIC,
-    yieldtotal NUMERIC,
-    irradiation NUMERIC
-);
-
-CREATE INDEX IF NOT EXISTS opendtu_inverters_dc_timestamp_idx ON opendtu_inverters_dc (timestamp);
--- +goose StatementEnd
--- +goose Down
--- +goose StatementBegin
--- +goose StatementEnd

migrations/00005_inverters_inv.sql

@@ -1,19 +0,0 @@
--- +goose Up
--- +goose StatementBegin
-CREATE TABLE IF NOT EXISTS opendtu_inverters_inv (
-    -- id SERIAL PRIMARY KEY,
-    timestamp TIMESTAMPTZ,
-    -- FOREIGN KEY (timestamp) REFERENCES opendtu_log(timestamp),
-    inverter_serial TEXT,
-    temperature NUMERIC,
-    power_dc NUMERIC,
-    yieldday NUMERIC,
-    yieldtotal NUMERIC,
-    efficiency NUMERIC
-);
-
-CREATE INDEX IF NOT EXISTS opendtu_inverters_inv_timestamp_idx ON opendtu_inverters_inv (timestamp);
--- +goose StatementEnd
--- +goose Down
--- +goose StatementBegin
--- +goose StatementEnd

migrations/00006_events.sql

@@ -1,17 +0,0 @@
--- +goose Up
--- +goose StatementBegin
-CREATE TABLE IF NOT EXISTS opendtu_events (
-	-- id SERIAL PRIMARY KEY,
-	timestamp TIMESTAMPTZ DEFAULT CURRENT_TIMESTAMP,
-	inverter_serial TEXT,
-	message_id INT,
-	message TEXT,
-	start_time INT,
-	end_time INT
-);
-
-CREATE INDEX IF NOT EXISTS opendtu_events_timestamp_idx ON opendtu_events (timestamp);
--- +goose StatementEnd
--- +goose Down
--- +goose StatementBegin
--- +goose StatementEnd

migrations/00007_events.sql

@@ -1,26 +0,0 @@
--- +goose Up
--- +goose StatementBegin
-DO $$
-BEGIN
-    -- Check if start_timestamp column exists
-    IF NOT EXISTS (SELECT 1 FROM information_schema.columns 
-                WHERE table_name='opendtu_events' 
-                AND column_name='start_timestamp') THEN
-        -- Add start_timestamp column
-        ALTER TABLE opendtu_events 
-        ADD COLUMN start_timestamp TIMESTAMPTZ;
-    END IF;
-
-    -- Check if end_timestamp column exists
-    IF NOT EXISTS (SELECT 1 FROM information_schema.columns 
-                WHERE table_name='opendtu_events' 
-                AND column_name='end_timestamp') THEN
-        -- Add end_timestamp column
-        ALTER TABLE opendtu_events 
-        ADD COLUMN end_timestamp TIMESTAMPTZ;
-    END IF;
-END $$;
--- +goose StatementEnd
--- +goose Down
--- +goose StatementBegin
--- +goose StatementEnd

migrations/00008_hints.sql

@@ -1,16 +0,0 @@
--- +goose Up
--- +goose StatementBegin
-CREATE TABLE IF NOT EXISTS opendtu_hints (
-    -- id SERIAL PRIMARY KEY,
-    timestamp TIMESTAMPTZ,
-    -- FOREIGN KEY (timestamp) REFERENCES opendtu_log(timestamp),
-    time_sync BOOL,
-    radio_problem BOOL,
-    default_password BOOL
-);
-
-CREATE INDEX IF NOT EXISTS opendtu_hints_timestamp_idx ON opendtu_hints (timestamp);
--- +goose StatementEnd
--- +goose Down
--- +goose StatementBegin
--- +goose StatementEnd

migrations/fs.go

@@ -1,6 +0,0 @@
-package migrations
-
-import "embed"
-
-//go:embed *.sql
-var FS embed.FS

systemd/opendtu-logger.service

@@ -16,15 +16,10 @@ Type=simple
 User=opendtu-logger
 Group=opendtu-logger
 
-Environment="OPENDTU_ADDRESS=opendtu.local:80"
+Environment="REMOTE_URL=opendtu.local:80"
-Environment="OPENDTU_AUTH=false"
-Environment="OPENDTU_USERNAME=admin"
-Environment="OPENDTU_PASSWORD=your_super_secret_password"
 Environment="DB_URL=host=localhost port=5432 user=postgres password=secret dbname=dtu sslmode=disable"
 Environment="TIMESCALEDB_ENABLED=true"
 Environment="TZ=Europe/Amsterdam"
-Environment="LOG_LEVEL=INFO"
-
 
 WorkingDirectory=/opt/opendtu-logger/
 ExecStart=/opt/opendtu-logger/opendtu-logger