Faas: Question about Golang blog post

[FlankMiao]

I follow this post:
https://blog.alexellis.io/serverless-golang-with-openfaas/

[faas-cli build -f gohash.yml]
here is the error:
[0] > Building gohash.
Clearing temporary build folder: ./build/gohash/
Preparing ./gohash/ ./build/gohash/function
Building: gohash:latest with go template. Please wait..
Sending build context to Docker daemon 38.91kB
Step 1/20 : FROM golang:1.9.7-alpine3.8 as builder
---> b0260be938c6
Step 2/20 : RUN apk --no-cache add curl && echo "Pulling watchdog binary from Github." && curl -sSL https://github.com/openfaas/faas/releases/download/0.9.6/fwatchdog > /usr/bin/fwatchdog && chmod +x /usr/bin/fwatchdog && apk del curl --no-cache
---> Using cache
---> 5e42443212b4
Step 3/20 : WORKDIR /go/src/handler
---> Using cache
---> b09e269be47c
Step 4/20 : COPY . .
---> Using cache
---> 1812be5338cd
Step 5/20 : 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; }
---> Using cache
---> 013ebc359837
Step 6/20 : RUN CGO_ENABLED=0 GOOS=linux go build --ldflags "-s -w" -a -installsuffix cgo -o handler . && go test $(go list ./... | grep -v /vendor/) -cover
---> Running in 6ae065e4f5fd
main.go:9:2: read /go/src/handler/function/gohash.go: unexpected NUL in input
The command '/bin/sh -c CGO_ENABLED=0 GOOS=linux go build --ldflags "-s -w" -a -installsuffix cgo -o handler . && go test $(go list ./... | grep -v /vendor/) -cover' returned a non-zero code: 1
2018/10/10 10:56:38 ERROR - Could not execute command: [docker build -t gohash:latest .]

My VS code is in UTF-8 encoding.
Here is the source code:

functions.zip

the dir is $gopath/src/

[martindekov]

Hey there @FlankMiao . Your handler.go is binary file which is the problem here I think. The right order for writing your first function is:

is whatever name you gave to your function

1. faas-cli new <fn_name> --lang=go --prefix=<dockerhubname> prefix is optional in case you are pushing in dockehub or other image repository
2. Edit your handler.go inside the folder with whatever you want
3. Format your code
4. Build -> Push -> Deploy with faas-cli as you did

Also you should not run any go .. commands on your handler.go file. I hope this resolves your issue.

Edit: If the steps above don't help please provide me with the steps you did before building your function.

[FlankMiao]

@martindekov thanks :), there is an encrypt software in my laptop, I guess it,s the reason. I will try again.

[FlankMiao]

@martindekov It.s caused by the encryption software. Thanks :).

[martindekov]

I am glad you got your issue resolved. 👍