add dockerfile

Dockerfile

@@ -0,0 +1,13 @@
+FROM golang:1.18 as builder
+WORKDIR /go/src/app
+COPY . .
+RUN apt update && apt upgrade -y
+RUN go build
+
+FROM alpine:latest as final
+WORKDIR /srv/
+RUN mkdir /srv/nunbot
+RUN mkdir /lib64 && ln -s /lib/libc.musl-x86_64.so.1 /lib64/ld-linux-x86-64.so.2
+COPY --from=builder /go/src/app/nunbot /srv/nunbot/
+
+CMD ["/srv/nunbot/nunbot"]

main.go

@@ -21,6 +21,7 @@ var GitCommit string
 func main() {
 	conf, err := mbl.LoadMatrixClientConfig("config.yaml")
 	if err != nil {
+		log.Println("no local config found, checking /etc/nunbot")
 		conf, err = mbl.LoadMatrixClientConfig("/etc/nunbot/config.yaml")
 		if err != nil {
 			panic(err)