Add Docker

* Add Dockerfile and prometheuscommunity.
* Add promehteus common Version handler.
* Update README.

Signed-off-by: Ben Kochie <superq@gmail.com>

Dockerfile

@@ -0,0 +1,12 @@
+ARG ARCH="amd64"
+ARG OS="linux"
+FROM quay.io/prometheus/busybox-${OS}-${ARCH}:glibc
+LABEL maintainer="The Prometheus Authors <prometheus-developers@googlegroups.com>"
+
+ARG ARCH="amd64"
+ARG OS="linux"
+COPY .build/${OS}-${ARCH}/json_exporter /bin/json_exporter
+
+EXPOSE      7979
+USER        nobody
+ENTRYPOINT  [ "/bin/bind_exporter" ]

Makefile

@@ -3,6 +3,7 @@ all::
 
 # Needs to be defined before including Makefile.common to auto-generate targets
 DOCKER_ARCHS ?= amd64 armv7 arm64 ppc64le
+DOCKER_REPO  ?= prometheuscommunity
 
 include Makefile.common
 

README.md

@@ -1,17 +1,17 @@
 json_exporter
 ========================
+[![CircleCI](https://circleci.com/gh/prometheus-community/json_exporter.svg?style=svg)](https://circleci.com/gh/prometheus-community/json_exporter)
 
 A [prometheus](https://prometheus.io/) exporter which scrapes remote JSON by JSONPath.
 
-Build
-=====
+# Build
+
 ```sh
-./gow get .
-./gow build -o json_exporter .
+make build
 ```
 
-Example Usage
-=============
+# Example Usage
+
 ```sh
 $ cat example/data.json
 {
@@ -68,7 +68,16 @@ example_value_count{environment="beta",id="id-A"} 1
 example_value_count{environment="beta",id="id-C"} 3
 ```
 
-See Also
-========
+# Docker
+
+```console
+docker run \
+  -v config.yml:/config.yml
+  json_exporter \
+    http://example.com/target.json \
+    /config.yml
+```
+
+# See Also
 - [kawamuray/jsonpath](https://github.com/kawamuray/jsonpath#path-syntax) : For syntax reference of JSONPath.
   Originally forked from nicksardo/jsonpath(now is https://github.com/NodePrime/jsonpath).

go.mod

@@ -8,6 +8,7 @@ require (
 	github.com/kawamuray/jsonpath v0.0.0-20160208140654-5c448ebf9735
 	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
 	github.com/prometheus/client_golang v1.5.1
+	github.com/prometheus/common v0.9.1
 	github.com/prometheus/procfs v0.0.11 // indirect
 	github.com/sirupsen/logrus v1.5.0
 	github.com/urfave/cli v1.22.4

jsonexporter/version.go

@@ -13,4 +13,8 @@
 
 package jsonexporter
 
-const Version = "0.0.2"
+import (
+	"github.com/prometheus/common/version"
+)
+
+var Version = version.Version