first commit

Author: alexellis

template/golang-http/Dockerfile

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+FROM golang:1.9.2-alpine3.6
+
+# Alternatively use ADD https:// (which will not be cached by Docker builder)
+RUN apk --no-cache add curl \
+    && echo "Pulling watchdog binary from Github." \
+    && curl -sSLf https://github.com/openfaas-incubator/of-watchdog/releases/download/0.2.1/of-watchdog > /usr/bin/fwatchdog \
+    && chmod +x /usr/bin/fwatchdog \
+    && apk del curl --no-cache
+
+WORKDIR /go/src/handler
+COPY . .
+
+# Run a gofmt and exclude all vendored code.
+RUN test -z "$(gofmt -l $(find . -type f -name '*.go' -not -path "./vendor/*" -not -path "./function/vendor/*"))" || { echo "Run \"gofmt -s -w\" on your Golang code"; exit 1; }
+
+RUN CGO_ENABLED=0 GOOS=linux \
+    go build --ldflags "-s -w" -a -installsuffix cgo -o handler . && \
+    go test $(go list ./... | grep -v /vendor/) -cover
+
+FROM alpine:3.6
+RUN apk --no-cache add ca-certificates
+
+# Add non root user
+RUN addgroup -S app && adduser -S -g app app
+RUN mkdir -p /home/app
+RUN chown app /home/app
+
+WORKDIR /home/app
+
+COPY --from=0 /go/src/handler/handler    .
+COPY --from=0 /usr/bin/fwatchdog         .
+RUN apk add --no-cache curl
+USER app
+
+ENV fprocess="./handler"
+ENV mode="http"
+ENV upstream_url="http://127.0.0.1:8081"
+
+CMD ["./fwatchdog"]

template/golang-http/function/handler.go

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+package function
+
+import (
+	"fmt"
+)
+
+// Handle a serverless request
+func Handle(req []byte) string {
+	return fmt.Sprintf("Hello, Go. You said: %s", string(req))
+}

template/golang-http/main.go

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+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"time"
+
+	"handler/function"
+)
+
+func makeRequestHandler() func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var input []byte
+
+		if r.Body != nil {
+
+			defer r.Body.Close()
+
+			bodyBytes, bodyErr := ioutil.ReadAll(r.Body)
+
+			if bodyErr != nil {
+				log.Printf("Error reading body from request.")
+			}
+
+			input = bodyBytes
+		}
+
+		result := function.Handle(input)
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(result))
+	}
+}
+
+func main() {
+	s := &http.Server{
+		Addr:           fmt.Sprintf(":%d", 8081),
+		ReadTimeout:    3 * time.Second,
+		WriteTimeout:   3 * time.Second,
+		MaxHeaderBytes: 1 << 20, // Max header of 1MB
+	}
+
+	http.HandleFunc("/", makeRequestHandler())
+	log.Fatal(s.ListenAndServe())
+}

template/golang-http/template.yml

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+language: go
+fprocess: ./handler