Migrate deployment to Gitea Actions and Portainer

Dockerfile

@@ -1,22 +1,18 @@
-FROM golang:1.14-alpine as dev
+FROM golang:1.22-alpine AS builder
 
-WORKDIR /go/src/Geeksbot
-COPY ./go.mod .
-COPY ./go.sum .
+WORKDIR /src
+RUN apk add --no-cache ca-certificates git tzdata
 
+COPY go.mod go.sum ./
 RUN go mod download
 
 COPY . .
-RUN go install github.com/dustinpianalto/geeksbot/...
-RUN go get -u github.com/go-bindata/go-bindata/...
+ARG TARGETARCH=amd64
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=$TARGETARCH go build -o /out/geeksbot ./cmd/geeksbot
 
-CMD [ "go", "run", "cmd/geeksbot/main.go"]
+FROM alpine:3.20
+RUN apk add --no-cache ca-certificates tzdata
 
-from alpine
+COPY --from=builder /out/geeksbot /usr/local/bin/geeksbot
 
-WORKDIR /bin
-
-COPY --from=dev /go/bin/geeksbot ./geeksbot
-COPY --from=dev /go/bin/go-bindata ./go-bindata
-
-CMD [ "geeksbot" ]
+ENTRYPOINT ["/usr/local/bin/geeksbot"]