From 8fe7cb691d015b0d6e40785189036ef648328ecf Mon Sep 17 00:00:00 2001
From: Alex Ellis <AlexEllis2@gmail.com>
Date: Thu, 22 Dec 2016 13:08:32 +0000
Subject: [PATCH] Initial
---
watchdog/Dockerfile | 7 +++++++
watchdog/Dockerfile.build | 6 ++++++
watchdog/build.sh | 7 +++++++
watchdog/main.go | 42 +++++++++++++++++++++++++++++++++++++++
4 files changed, 62 insertions(+)
create mode 100644 watchdog/Dockerfile
create mode 100644 watchdog/Dockerfile.build
create mode 100755 watchdog/build.sh
create mode 100644 watchdog/main.go
diff --git a/watchdog/Dockerfile b/watchdog/Dockerfile
new file mode 100644
index 00000000..d55ad676
--- /dev/null
+++ b/watchdog/Dockerfile
@@ -0,0 +1,7 @@
+FROM alpine:edge
+
+COPY ./fwatchdog /usr/bin/fwatchdog
+ENV fprocess "cat -b"
+
+EXPOSE 8080
+CMD ["fwatchdog"]
diff --git a/watchdog/Dockerfile.build b/watchdog/Dockerfile.build
new file mode 100644
index 00000000..b9ea1866
--- /dev/null
+++ b/watchdog/Dockerfile.build
@@ -0,0 +1,6 @@
+FROM golang:1.7.3
+RUN mkdir -p /go/src/fwatchdog
+COPY main.go /go/src/fwatchdog
+WORKDIR /go/src/fwatchdog
+RUN go get -d -v
+RUN go build
diff --git a/watchdog/build.sh b/watchdog/build.sh
new file mode 100755
index 00000000..76164212
--- /dev/null
+++ b/watchdog/build.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+docker build -t watchdog:latest . -f Dockerfile.build
+docker create --name buildoutput watchdog:latest
+docker cp buildoutput:/go/src/fwatchdog/fwatchdog ./
+docker rm buildoutput
+
diff --git a/watchdog/main.go b/watchdog/main.go
new file mode 100644
index 00000000..0e603bcb
--- /dev/null
+++ b/watchdog/main.go
@@ -0,0 +1,42 @@
+package main
+
+import (
+ "io/ioutil"
+ "log"
+ "net/http"
+ "os"
+ "os/exec"
+ "strings"
+ "time"
+)
+
+func main() {
+ s := &http.Server{
+ Addr: ":8080",
+ ReadTimeout: 2 * time.Second,
+ WriteTimeout: 2 * time.Second,
+ MaxHeaderBytes: 1 << 20,
+ }
+
+ http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+ if r.Method == "POST" {
+ process := os.Getenv("fprocess")
+ parts := strings.Split(process, " ")
+ targetCmd := exec.Command(parts[0], parts[1:]...)
+ writer, _ := targetCmd.StdinPipe()
+ res, _ := ioutil.ReadAll(r.Body)
+ writer.Write(res)
+ writer.Close()
+ out, err := targetCmd.Output()
+ if err != nil {
+ panic(err)
+ }
+
+ os.Stdout.Write(out)
+ w.Write(out)
+ }
+ })
+
+ log.Fatal(s.ListenAndServe())
+}
+
--
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