cgo runtime error with golang:1.11beta2-alpine3.7

[mfridman]

Trying to run a few tests inside this container and seeing cgo errors:

GOGC=off go test -run ...

# runtime/cgo
exec: "gcc": executable file not found in $PATH

Is this by design, where the consumer of the image must apk add gcc and fix any dependency issues, apk add musl-dev ?

EDIT: the docker image already has those items

golang/1.11-rc/alpine3.7/Dockerfile

Lines 16 to 23 in 9d80ad8

	RUN set -eux; \
	apk add --no-cache --virtual .build-deps \
	bash \
	gcc \
	musl-dev \
	openssl \
	go \
	; \

Noticed a similar issue here, golang/go/issues/26307

[tianon]

If you look a little further down, the Alpine image removes those again:

golang/1.11-rc/alpine3.7/Dockerfile

Line 55 in 9d80ad8

apk del .build-deps; \

See also https://hub.docker.com/_/golang/, under "golang:alpine":

To minimize image size, it's uncommon for additional related tools (such as git or bash) to be included in Alpine-based images. Using this image as a base, add the things you need in your own Dockerfile (see the alpine image description for examples of how to install packages if you are unfamiliar).

And #119.