From 149f4be8ddf20dfb6adf029a3c81850daaeb819f Mon Sep 17 00:00:00 2001 From: Thomas Klaehn Date: Tue, 7 May 2024 10:38:01 +0200 Subject: [PATCH] Ininial commit --- .vscode/launch.json | 7 +++ Makefile | 48 ++++++++++++++++ README.md | 0 config/config.json | 7 +++ go.mod | 18 ++++++ go.sum | 113 ++++++++++++++++++++++++++++++++++++ main.go | 135 ++++++++++++++++++++++++++++++++++++++++++++ soil2db.service | 10 ++++ 8 files changed, 338 insertions(+) create mode 100644 .vscode/launch.json create mode 100644 Makefile create mode 100644 README.md create mode 100644 config/config.json create mode 100644 go.mod create mode 100644 go.sum create mode 100644 main.go create mode 100644 soil2db.service diff --git a/.vscode/launch.json b/.vscode/launch.json new file mode 100644 index 0000000..5c7247b --- /dev/null +++ b/.vscode/launch.json @@ -0,0 +1,7 @@ +{ + // Use IntelliSense to learn about possible attributes. + // Hover to view descriptions of existing attributes. + // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387 + "version": "0.2.0", + "configurations": [] +} \ No newline at end of file diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..3f856f7 --- /dev/null +++ b/Makefile @@ -0,0 +1,48 @@ +PROJECT_NAME := soil2db + +PREFIX ?= /usr/bin + +CONFIG_DIR := /etc/$(PROJECT_NAME) +SYSTEM_DIR := /usr/lib/systemd/system + +CONFIG_FILE := config/config.json +BIN_FILE := bin/$(PROJECT_NAME) +UNIT_FILE := $(PROJECT_NAME).service +README_FILE := README.md + +.PHONY: all +all: + mkdir -p bin + go clean + go mod tidy + go build -o $(BIN_FILE) + +.PHONY: clean +clean: + go clean + rm -rf bin + +.PHONY: install +install: all + @if [ -f $(CONFIG_DIR)/$(notdir $(CONFIG_FILE)) ]; then \ + echo "$(CONFIG_DIR)/$(notdir $(CONFIG_FILE)) already exists - skipping..."; \ + else \ + install -d $(CONFIG_DIR); \ + install -m 0644 $(CONFIG_FILE) $(CONFIG_DIR); \ + echo "install -d $(CONFIG_DIR)"; \ + echo "install -m 0644 $(CONFIG_FILE) $(CONFIG_DIR)"; \ + fi + install -d $(PREFIX) + install -m 0755 $(BIN_FILE) $(PREFIX) + install -d $(SYSTEM_DIR) + install -m 0644 $(UNIT_FILE) $(SYSTEM_DIR) + +.PHONY: uninstall +uninstall: + rm -rf $(CONFIG_DIR) + rm -rf $(SYSTEM_DIR)/$(UNIT_FILE) + rm -rf $(PREFIX)/$(PROJECT_NAME) + +.PHONY: package +package: all + tar cvzf $(PROJECT_NAME).tar.gz $(CONFIG_FILE) $(BIN_FILE) $(UNIT_FILE) $(README_FILE) diff --git a/README.md b/README.md new file mode 100644 index 0000000..e69de29 diff --git a/config/config.json b/config/config.json new file mode 100644 index 0000000..c331c93 --- /dev/null +++ b/config/config.json @@ -0,0 +1,7 @@ +{ + "influxdb_host": "nuc", + "influxdb_port": 8086, + "influxdb_token": "", + "mqtt_broker": "nuc", + "mqtt_port": 1883 +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..b353138 --- /dev/null +++ b/go.mod @@ -0,0 +1,18 @@ +module soil + +go 1.22.0 + +require ( + github.com/eclipse/paho.mqtt.golang v1.4.3 + github.com/influxdata/influxdb-client-go/v2 v2.13.0 +) + +require ( + github.com/apapsch/go-jsonmerge/v2 v2.0.0 // indirect + github.com/google/uuid v1.3.1 // indirect + github.com/gorilla/websocket v1.5.0 // indirect + github.com/influxdata/line-protocol v0.0.0-20200327222509-2487e7298839 // indirect + github.com/oapi-codegen/runtime v1.0.0 // indirect + golang.org/x/net v0.17.0 // indirect + golang.org/x/sync v0.1.0 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..7495908 --- /dev/null +++ b/go.sum @@ -0,0 +1,113 @@ +github.com/RaveNoX/go-jsoncommentstrip v1.0.0/go.mod h1:78ihd09MekBnJnxpICcwzCMzGrKSKYe4AqU6PDYYpjk= +github.com/apapsch/go-jsonmerge/v2 v2.0.0 h1:axGnT1gRIfimI7gJifB699GoE/oq+F2MU7Dml6nw9rQ= +github.com/apapsch/go-jsonmerge/v2 v2.0.0/go.mod h1:lvDnEdqiQrp0O42VQGgmlKpxL1AP2+08jFMw88y4klk= +github.com/bmatcuk/doublestar v1.1.1/go.mod h1:UD6OnuiIn0yFxxA2le/rnRU1G4RaI4UvFv1sNto9p6w= +github.com/cyberdelia/templates v0.0.0-20141128023046-ca7fffd4298c/go.mod 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+gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= +gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= diff --git a/main.go b/main.go new file mode 100644 index 0000000..39581dc --- /dev/null +++ b/main.go @@ -0,0 +1,135 @@ +package main + +import ( + "context" + "encoding/json" + "flag" + "log" + "os" + "strconv" + "time" + + mqtt "github.com/eclipse/paho.mqtt.golang" + influxdb2 "github.com/influxdata/influxdb-client-go/v2" + "github.com/influxdata/influxdb-client-go/v2/api" +) + +type config struct { + InfluxdbHost string `json:"influxdb_host"` + InfluxdbPort int `json:"influxdb_port"` + InfluxdbToken string `json:"influxdb_token"` + MqttBroker string `json:"mqtt_broker"` + MqttPort int `json:"mqtt_port"` +} + +type data struct { + Data struct { + Dry bool `json:"dry"` + Debug struct { + Value float64 `json:"value"` + Unit string `json:"unit"` + } `json:"debug"` + } `json:"data"` +} + +var ( + logger log.Logger = *log.Default() + config_path string + write_api api.WriteAPIBlocking + ctx context.Context + config_cache config +) + +var message_pub_handler mqtt.MessageHandler = func(client mqtt.Client, msg mqtt.Message) { + logger.Printf("Received message: %s from topic: %s\n", msg.Payload(), msg.Topic()) +} + +var soil_handler mqtt.MessageHandler = func(client mqtt.Client, msg mqtt.Message) { + logger.Printf("Received message: %s from topic: %s\n", msg.Payload(), msg.Topic()) + var dry_data data + err := json.Unmarshal(msg.Payload(), &dry_data) + if err != nil { + logger.Print(err) + return + } + point := influxdb2.NewPointWithMeasurement("garden") + point.AddTag("soil", "moisture") + point.AddField("value", dry_data.Data.Debug.Value) + point.AddField("unit", dry_data.Data.Debug.Unit) + point.SetTime(time.Now()) + err = write_api.WritePoint(ctx, point) + if err != nil { + logger.Print(err.Error()) + } +} + +var connect_handler mqtt.OnConnectHandler = func(client mqtt.Client) { + logger.Println("Connected") + subscribe(client) +} + +var connect_lost_handler mqtt.ConnectionLostHandler = func(client mqtt.Client, err error) { + logger.Printf("Connect lost: %v", err) +} + +func init() { + logger.SetPrefix("soil2db: ") +} + +func read_config() { + data, err := os.ReadFile(config_path) + if err != nil { + logger.Printf("Unable to read %s", config_path) + return + } + err = json.Unmarshal(data, &config_cache) + if err != nil { + logger.Print("Unable to evaluate config data") + return + } +} + +func connect() mqtt.Client { + // MQTT connection + opts := mqtt.NewClientOptions() + broker := "tcp://" + config_cache.MqttBroker + ":" + strconv.Itoa(config_cache.MqttPort) + opts.AddBroker(broker) + opts.SetClientID("soil2db") + opts.SetDefaultPublishHandler(message_pub_handler) + opts.OnConnect = connect_handler + opts.OnConnectionLost = connect_lost_handler + client := mqtt.NewClient(opts) + if token := client.Connect(); token.Wait() && token.Error() != nil { + logger.Panic(token.Error()) + } + return client +} + +func subscribe(client mqtt.Client) { + // MQTT subscribtion + topic := "garden/soil/moisture" + token := client.Subscribe(topic, 1, soil_handler) + token.Wait() + logger.Printf("Subscribed to topic %s", topic) +} + +func main() { + flag.StringVar(&config_path, "c", "./config/config.json", "Specify path to find the config file. Default is ./config/config.json") + flag.Parse() + read_config() + + mqtt_client := connect() + subscribe(mqtt_client) + + influxdb_url := "http://" + config_cache.InfluxdbHost + ":" + strconv.Itoa(config_cache.InfluxdbPort) + client := influxdb2.NewClient(influxdb_url, config_cache.InfluxdbToken) + // always close client at the end + defer client.Close() + + write_api = client.WriteAPIBlocking("tkl", "home") + ctx = context.Background() + + for { + time.Sleep(time.Second) + } +} diff --git a/soil2db.service b/soil2db.service new file mode 100644 index 0000000..c23f707 --- /dev/null +++ b/soil2db.service @@ -0,0 +1,10 @@ +[Unit] +Description=collect garden/soil/moisture by mqtt and store it into influxDB +After=multi-user.target + +[Service] +Type=idle +ExecStart=/usr/bin/soil2db -c /etc/soil2db/config.json + +[Install] +WantedBy=multi-user.target