Merge pull request #8 from sachk/master

Make the docker container smaller and add documentation
boynux · Jul 30, 2018 · b83f1d4 · b83f1d4
2 parents 99fcb4d + 749e0bd
commit b83f1d4
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diff --git a/Dockerfile b/Dockerfile
@@ -1,11 +1,14 @@
-FROM golang
+FROM golang:alpine as builder
 
 WORKDIR /go/src/github.com/boynux/squid-exporter
 COPY . .
 
 # Compile the binary statically, so it can be run without libraries.
 RUN CGO_ENABLED=0 GOOS=linux go install -a -ldflags '-extldflags "-static"' .
 
-FROM alpine
-COPY --from=0 /go/bin/squid-exporter /usr/local/bin/squid-exporter
+FROM scratch
+COPY --from=builder /go/bin/squid-exporter /usr/local/bin/squid-exporter
+
+EXPOSE 9301
+
 ENTRYPOINT ["/usr/local/bin/squid-exporter"]
diff --git a/README.md b/README.md
@@ -25,6 +25,16 @@ To get all the parameteres
     squid-exprter -help
 
 
+Usage with docker:
+------
+Basic setup assuming Squid is running on the same machine:
+
+    docker run --net=host -d boynux/squid-exporter
+
+Setup with Squid running on a different host
+
+    docker run -p 9301:9301 -d boynux/squid-exporter -squid-hostname "192.168.0.2" -squid-port 3128 -listen-address "0.0.0.0"
+
 Features:
 ---------