On Friday, December 18, 2020 at 10:31:46 AM UTC+13 za...@zrhoffman.net wrote:
> In our project we'd chosen debian-slim images vs alpine few years ago due >> to a number of reasons, if I recall arguments were like: >> >> 1. presence of libc >> > > There are reasons to choose other images over Alpine, but IMO avoiding > musl libc is not one of them. In the case of x86_64 architecture, if you > symlink ld-musl-x86_64.so.1 to ld-linux-x86-64.so.2, you can use musl libc > in place of glibc, which is functional for most use cases. > My experience in maintaining github.com/gographics/imagick is that the use of an alpine image led to a lot of support tickets. As it turns out, libmusl doesn't work well with ImageMagick. So I just avoid it, as you would need to be sure your C dependencies are happy with it first. > > See this example Dockerfile to use a linux/arm64 Go release with an Alpine > base image: > > FROM alpine:3.12 > RUN ln -s lib lib64 && \ > ln -s ld-musl-x86_64.so.1 lib/ld-linux-x86-64.so.2 > RUN set -o pipefail && \ > wget -O- https://golang.org/dl/go1.15.6.linux-amd64.tar.gz | \ > tar xzC usr/local && \ > rm -r usr/local/go/pkg/linux_amd64_race > ENV PATH=${PATH}:/usr/local/go/bin \ > GOPATH=/go > > Binaries built using this approach can run on other linux/amd64 platforms, > even though CGO was not disabled. > > As a side note, the resultant image for the above Dockerfile is 369MB, > whereas golang:alpine is only 299MB. The size difference is > /usr/local/go/pkg/linux_amd64_race, which golang:alpine does not include > (but golang:buster, for example, does). > > -Zach > > On Thu, Dec 17, 2020 at 5:44 AM Space A. <reexi...@gmail.com> wrote: > >> Hi Constantine, >> >> In our project we'd chosen debian-slim images vs alpine few years ago due >> to a number of reasons, if I recall arguments were like: >> >> 1. presence of libc >> 2. bugs and performance issues of alpine >> 3. security issues of alpine >> 4. debian is more suitable for testing with huge amount of tools >> available out of the box, if needed >> >> >> After all, talking about saving few tens of megs of hdd space per image >> (it's the main reason for ppl selecting alpine) is ridiculous nowadays IMO. >> >> >> >> среда, 16 декабря 2020 г. в 20:10:49 UTC+3, Constantine Vassilev: >> >>> What about the size of images? For pure Golang project what are the >>> advantages of glibc? >>> >>> For a project I have to present pro and cons before the team to decide. >>> >>> On Tuesday, December 15, 2020 at 6:03:29 PM UTC-8 amits...@gmail.com >>> wrote: >>> >>>> >>>> >>>> On Wed, 16 Dec 2020, 12:38 pm Constantine Vassilev, <ths...@gmail.com> >>>> wrote: >>>> >>>>> All examples in Google Cloud Run for building >>>>> Golang Docker images are based on Debian. >>>>> >>>>> FROM golang:alpine AS builder >>>>> ... >>>>> FROM debian:buster-slim >>>>> ... >>>>> >>>>> What are debian:buster-slim advantages vs alpine ones? >>>>> >>>> >>>> Besides the size of the images, one key difference would be the >>>> underlying C library - Debian would be glibc and Alpine would be libmusl >>>> >>>> So advantages would be if knowing that libc is available. >>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "golang-nuts" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to golang-nuts...@googlegroups.com. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/golang-nuts/2433a1dd-c3ea-4c5c-9f6e-d1595cef99f9n%40googlegroups.com >>>>> >>>>> <https://groups.google.com/d/msgid/golang-nuts/2433a1dd-c3ea-4c5c-9f6e-d1595cef99f9n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> -- >> You received this message because you are subscribed to the Google Groups >> "golang-nuts" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to golang-nuts...@googlegroups.com. >> > To view this discussion on the web visit >> https://groups.google.com/d/msgid/golang-nuts/9f0bd697-286f-455a-afef-4a49e98fea80n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/golang-nuts/9f0bd697-286f-455a-afef-4a49e98fea80n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/7a3c9d89-a95e-43fd-acfb-4693bb275349n%40googlegroups.com.
