Support for building ARM docker images (#679)

* add llvm to build stage

running docker build on Apple Sillicon would result in this error:

#14 49.39 <no location info>: error:
#14 49.39     Warning: Couldn't figure out LLVM version!
#14 49.39              Make sure you have installed LLVM between [9 and 13)

I assume it can’t find llvm/clang?

* install using unattended helper script

the current haskell is hardcoded to x86, so switch to using haskell’s official helper script which supports arm

also need to bump up setting the path, since ghcup is no longer in /usr/bin

reference: https://www.haskell.org/ghcup/guide/#continuous-integration

* add numa headers/libs

docker build (specifically haskell install step) would fail with :

#7 107.2 utils/ghc-cabal/dist-install/build/tmp/ghc-cabal: error while loading shared libraries: libnuma.so.1: cannot open shared object file: No such file or directory

I think this is because numa isn’t installed on arm instances of focal by default, but it is in later versions

anyway this fixes that

* also add numa to final

The image builds at this point! But it fails to boot on arm - again with a numa error.

This fixes that.

* don’t specify llvm version

---------

Co-authored-by: +shyfire131 <shyfire131@shyfire131.net>

build.Dockerfile

@@ -4,16 +4,14 @@ FROM ubuntu:focal AS build
 ### Build stage
 
 # Install curl and git and smp-related dependencies
-RUN apt-get update && apt-get install -y curl git build-essential libgmp3-dev zlib1g-dev
+RUN apt-get update && apt-get install -y curl git build-essential libgmp3-dev zlib1g-dev llvm llvm-dev libnuma-dev
 
 # Install ghcup
-RUN curl https://downloads.haskell.org/~ghcup/x86_64-linux-ghcup -o /usr/bin/ghcup && \
-    chmod +x /usr/bin/ghcup
+RUN curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 BOOTSTRAP_HASKELL_GHC_VERSION=8.10.7 BOOTSTRAP_HASKELL_CABAL_VERSION=3.6.2.0 sh
+
+# Adjust PATH
+ENV PATH="/root/.cabal/bin:/root/.ghcup/bin:$PATH"
 
-# Install ghc
-RUN ghcup install ghc 8.10.7
-# Install cabal
-RUN ghcup install cabal
 # Set both as default
 RUN ghcup set ghc 8.10.7 && \
     ghcup set cabal
@@ -21,9 +19,6 @@ RUN ghcup set ghc 8.10.7 && \
 COPY . /project
 WORKDIR /project
 
-# Adjust PATH
-ENV PATH="/root/.cabal/bin:/root/.ghcup/bin:$PATH"
-
 # Compile smp-server
 RUN cabal update
 RUN cabal install
@@ -33,7 +28,7 @@ RUN cabal install
 FROM final
 
 # Install OpenSSL dependency
-RUN apt-get update && apt-get install -y openssl
+RUN apt-get update && apt-get install -y openssl libnuma-dev
 
 # Copy compiled smp-server from build stage
 COPY --from=build /root/.cabal/bin/smp-server /usr/bin/smp-server