Add Containerfile

Add Containerfile and instructions how to use the provided container.

Containerfile

@@ -0,0 +1,14 @@
+FROM golang:alpine AS builder
+WORKDIR /app
+ADD . /app
+RUN apk update && apk add build-base
+RUN cd /app && CGO_ENABLED=0 go build -ldflags="-w -s" -o meteod ./...
+
+FROM scratch
+WORKDIR /app
+COPY --from=builder /app/meteod /meteod
+
+VOLUME "/conf"
+
+ENTRYPOINT ["/meteod"]
+CMD ["-c", "/conf/meteod.conf"]

Makefile

@@ -8,5 +8,8 @@ install: all
 meteod: cmd/meteod/*.go
 	go build -o $@ $^
 
+container: meteod
+	podman build . -t codeberg.org/grisu48/meteo
+
 ## === Tests ================================================================ ##
 

README.md

@@ -59,3 +59,11 @@ OPTIONS
   --token TOKEN         Set influxdb token
   --http BINDADDR       Enable http server on the given address
 ```
+
+## container image
+
+You can run `meteod` as container image from codeberg.org. Create a [meteod.conf](meteod.conf.example) configuration file, and run the container in the container engine of your choise:
+
+    podman run --name meteo -v /path/to/your/meteod.conf:/conf/meteod.conf -p 4042:4042 codeberg.org/grisu48/meteo
+
+That's it!