Instalar Go en Alpine
Hola! Veremos cómo instalar Go en Alpine.
Una necesidad si estás desarrollando en Go. Usualmente si usas Alpine te encontrarás con una sola versión de go. Con este script podrás elegir la versión que deseas instalar.
| #source https://github.com/docker-library/golang/blob/ee2d52a7ad3e077af02313cd4cd87fd39837412c/1.15/alpine3.12/Dockerfile | |
| export PATH=/usr/local/go/bin:$PATH | |
| apk add gnupg go bash | |
| apk add --no-cache | |
| ca-certificates | |
| # set up nsswitch.conf for Go's "netgo" implementation | |
| # - https://github.com/golang/go/blob/go1.9.1/src/net/conf.go#L194-L275 | |
| # - docker run --rm debian:stretch grep '^hosts:' /etc/nsswitch.conf | |
| [ ! -e /etc/nsswitch.conf ] && echo 'hosts: files dns' > /etc/nsswitch.conf | |
| apk add --no-cache --virtual .build-deps | |
| apk add --no-cache --virtual gcc gnupg go musl-dev openssl | |
| export | |
| # set GOROOT_BOOTSTRAP such that we can actually build Go | |
| GOROOT_BOOTSTRAP="$(go env GOROOT)" | |
| # ... and set "cross-building" related vars to the installed system's values so that we create a build targeting the proper arch | |
| # (for example, if our build host is GOARCH=amd64, but our build env/image is GOARCH=386, our build needs GOARCH=386) | |
| GOOS="$(go env GOOS)" | |
| GOARCH="$(go env GOARCH)" | |
| GOHOSTOS="$(go env GOHOSTOS)" | |
| GOHOSTARCH="$(go env GOHOSTARCH)" | |
| ; | |
| # also explicitly set GO386 and GOARM if appropriate | |
| # https://github.com/docker-library/golang/issues/184 | |
| apkArch="$(apk --print-arch)"; | |
| case "$apkArch" in | |
| armhf) export GOARM='6' ;; | |
| armv7) export GOARM='7' ;; | |
| x86) export GO386='387' ;; | |
| esac; | |
| # https://github.com/golang/go/issues/38536#issuecomment-616897960 | |
| url='https://storage.googleapis.com/golang/go1.15.2.src.tar.gz'; | |
| sha256='28bf9d0bcde251011caae230a4a05d917b172ea203f2a62f2c2f9533589d4b4d'; | |
| wget -O go.tgz.asc "$url.asc"; | |
| wget -O go.tgz "$url"; | |
| echo "$sha256 *go.tgz" | sha256sum -c -; | |
| # https://github.com/golang/go/issues/14739#issuecomment-324767697 | |
| export GNUPGHOME="$(mktemp -d)"; | |
| # https://www.google.com/linuxrepositories/ | |
| gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys 'EB4C 1BFD 4F04 2F6D DDCC EC91 7721 F63B D38B 4796'; | |
| gpg --batch --verify go.tgz.asc go.tgz; | |
| gpgconf --kill all; | |
| rm -rf "$GNUPGHOME" go.tgz.asc; | |
| tar -C /usr/local -xzf go.tgz; | |
| rm go.tgz; | |
| goEnv="$(go env | sed -rn -e '/^GO(OS|ARCH|ARM|386)=/s//export 0/p')"; | |
| eval "$goEnv"; | |
| [ -n "$GOOS" ]; | |
| [ -n "$GOARCH" ]; | |
| ( | |
| cd /usr/local/go/src; | |
| ./make.bash; | |
| ); | |
| apk del --no-network .build-deps; | |
| # pre-compile the standard library, just like the official binary release tarballs do | |
| go install std; | |
| # go install: -race is only supported on linux/amd64, linux/ppc64le, linux/arm64, freebsd/amd64, netbsd/amd64, darwin/amd64 and windows/amd64 | |
| # go install -race std; | |
| # remove a few intermediate / bootstrapping files the official binary release tarballs do not contain | |
| rm -rf | |
| /usr/local/go/pkg/*/cmd | |
| /usr/local/go/pkg/bootstrap | |
| /usr/local/go/pkg/obj | |
| /usr/local/go/pkg/tool/*/api | |
| /usr/local/go/pkg/tool/*/go_bootstrap | |
| /usr/local/go/src/cmd/dist/dist | |
| ; | |
| go version |