Cannot install Go in Lambda container

[roboli]

I'm running the next command from Chapter 8:

docker compose -f docker-compose.yaml -f newsletter-lambda/docker-compose.yaml up

But it hangs and throws this:

[build 2/8] RUN yum install -y golang  
=> => # http://packages.us-west-2.amazonaws.com/2018.03/main/c31535f74c6e/x86_64/Packages/cpp72-7.2.1-2.59.amzn1.x86_64.rpm?instance_id=URLError&region=None: [Errno 12] Timeout on http://packages.us-we
 => => # st-2.amazonaws.com/2018.03/main/c31535f74c6e/x86_64/Packages/cpp72-7.2.1-2.59.amzn1.x86_64.rpm?instance_id=URLError&region=None: (28, 'Resolving timed out after 5000 milliseconds')             
 => => # Trying other mirror. 
                                                                                                                                                                            
 => => # http://packages.us-west-2.amazonaws.com/2018.03/updates/48f68d9058af/x86_64/Packages/git-2.38.3-1.78.amzn1.x86_64.rpm?instance_id=URLError&region=None: [Errno 12] Timeout on http://packages.us-
 => => # west-2.amazonaws.com/2018.03/updates/48f68d9058af/x86_64/Packages/git-2.38.3-1.78.amzn1.x86_64.rpm?instance_id=URLError&region=None: (28, 'Resolving timed out after 5000 milliseconds')         
 => => # Trying other mirror.

Any idea how to solve this? Thanks.

[gkatzioura]

Hi @roboli I cannot reproduce this.
However since this might cause you issues I created an image that you can use
gkatzioura/guide-to-compose:chapter8-go-installed

Essentially you shall switch lambda Dockerfiles with that image that have go installed.
The Dockerfiles affected are newsletter-lambda/Dockerfile and s3store-lambda/Dockerfile.

FROM gkatzioura/guide-to-compose:chapter8-go-installed as build


COPY go.mod ./
COPY go.sum ./

RUN go mod download

COPY *.go ./

RUN go build -o /main

FROM amazon/aws-lambda-go:latest
COPY --from=build /main /var/task/main

CMD [ "main" ]

Let me know if this works for you.