Small refactor for Go > 1.16

.gitignore

@@ -1 +1,24 @@
+# binary name
 icecast_exporter
+
+# If you prefer the allow list template instead of the deny list, see community template:
+# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
+#
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+# Go workspace file
+go.work

Dockerfile

@@ -6,7 +6,7 @@ RUN apk add --no-cache git
 
 COPY . /go/src/icecast_exporter
 
-RUN go get .
+RUN go build icecast_exporter.go
 
 # Final stage
 FROM alpine
@@ -16,4 +16,3 @@ COPY --from=build /go/bin/icecast_exporter /icecast_exporter
 EXPOSE 9146
 USER nobody
 ENTRYPOINT ["/icecast_exporter"]
-

go.mod

@@ -0,0 +1,17 @@
+module icecast_exporter
+
+go 1.19
+
+require (
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/prometheus/client_golang v1.13.0 // indirect
+	github.com/prometheus/client_model v0.2.0 // indirect
+	github.com/prometheus/common v0.37.0 // indirect
+	github.com/prometheus/procfs v0.8.0 // indirect
+	github.com/sirupsen/logrus v1.9.0 // indirect
+	golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
+)