linux client build on arm64 host

packaging/linux/Dockerfile

@@ -13,7 +13,7 @@ LABEL maintainer="Keybase <admin@keybase.io>"
 #   - unzip because electron6 packager requires it
 RUN apt-get update
 RUN apt-get install -y fakeroot reprepro rpm createrepo-c git wget \
-  build-essential curl s3cmd gnupg2 unzip rsync
+  build-essential curl s3cmd gnupg2 unzip rsync gcc-x86-64-linux-gnu
 
 # Install nodejs and yarn. (Note that this depends on curl above.)
 RUN mkdir -p /etc/apt/keyrings

packaging/linux/build_binaries.sh

@@ -2,6 +2,11 @@
 
 set -euox pipefail
 
+# check host arch
+is_arm64_host() {
+  [[ $(uname -m) == "arm64" ]] || [[ $(uname -m) == "aarch64" ]]
+}
+
 here="$(dirname "${BASH_SOURCE[0]}")"
 this_repo="$(git -C "$here" rev-parse --show-toplevel ||
   echo -n "$GOPATH/src/github.com/keybase/client")"
@@ -128,11 +133,21 @@ build_one_architecture() {
   (cd "$client_dir" && go build -tags "$go_tags" -ldflags "$ldflags_kbnm" -buildmode="$buildmode" -o \
     "$layout_dir/usr/bin/kbnm" github.com/keybase/client/go/kbnm)
 
-  # Write allowlists into the overlay. Note that we have to explicitly set USER
-  # here, because docker doesn't do it by default, and so otherwise the
-  # CGO-disabled i386 cross platform build will fail because it's unable to
-  # find the current user.
-  USER="$(whoami)" KBNM_INSTALL_ROOT=1 KBNM_INSTALL_OVERLAY="$layout_dir" "$layout_dir/usr/bin/kbnm" install
+
+  if is_arm64_host ; then
+    echo "is_arm64_host, building native kbnm for install"
+
+    (cd "$client_dir" && GOARCH=arm64 CC=gcc CXX=g++ go build -tags "$go_tags" -ldflags "$ldflags_kbnm" -buildmode="$buildmode" -o \
+    "$layout_dir/usr/bin/kbnm_arm64" github.com/keybase/client/go/kbnm)
+    USER="$(whoami)" KBNM_INSTALL_ROOT=1 KBNM_INSTALL_OVERLAY="$layout_dir" "$layout_dir/usr/bin/kbnm_arm64" install
+    rm "$layout_dir/usr/bin/kbnm_arm64"
+  else
+    # Write allowlists into the overlay. Note that we have to explicitly set USER
+    # here, because docker doesn't do it by default, and so otherwise the
+    # CGO-disabled i386 cross platform build will fail because it's unable to
+    # find the current user.
+    USER="$(whoami)" KBNM_INSTALL_ROOT=1 KBNM_INSTALL_OVERLAY="$layout_dir" "$layout_dir/usr/bin/kbnm" install
+  fi
 
   # Build Electron.
   echo "Building Electron client for $electron_arch..."
@@ -195,7 +210,13 @@ if [ -n "${KEYBASE_BUILD_ARM_ONLY:-}" ] ; then
 fi
 
 if [ -z "${KEYBASE_SKIP_64_BIT:-}" ] ; then
-  echo "Keybase: Building for x86-64"
+  if is_arm64_host ; then
+    echo "Keybase: Building for x86-64 (arm64 host cross compile)"
+    export CC=x86_64-linux-gnu-gcc
+    export CXX=x86_64-linux-gnu-g++
+  else
+    echo "Keybase: Building for x86-64"
+  fi
   export GOARCH=amd64
   export debian_arch=amd64
   export electron_arch=x64

packaging/linux/tuxbot/Vagrantfile

@@ -0,0 +1 @@
+Vagrantfile.arm64

packaging/linux/tuxbot/Vagrantfile.amd64

@@ -0,0 +1,29 @@
+Vagrant.configure("2") do |config|
+  config.vm.box = "debian/bullseye64"
+  config.vm.disk :disk, size: "100GB", primary: true
+  config.vm.provider "virtualbox" do |vb|
+    vb.memory = "24576"
+  end
+  config.vm.provision "shell", path: "provision_tuxbot_disk", privileged: true
+  config.vm.provision "shell", path: "provision_tuxbot_root", privileged: true
+  config.vm.provision "shell", path: "provision_tuxbot_user", privileged: false
+  config.vm.provision "file",
+    source: "#{ENV['GOPATH']}/src/github.com/keybase/client/packaging/linux/tuxbot/cleanup",
+    destination: "~/cleanup", run: "always"
+  config.vm.provision "file",
+    source: "#{ENV['GOPATH']}/src/github.com/keybase/client/packaging/linux/tuxbot/restartdocker",
+    destination: "~/restartdocker", run: "always"
+  config.vm.provision "file",
+    source: "#{ENV['GOPATH']}/src/github.com/keybase/client/packaging/linux/tuxbot/ssh_config",
+    destination: "~/.ssh/config", run: "always"
+  config.vm.provision "file",
+    source: "#{ENV['GOPATH']}/src/github.com/keybase/client/packaging/linux/tuxbot/ssh_known_hosts",
+    destination: "~/.ssh/known_hosts", run: "always"
+  config.vm.provision "file",
+    source: "~/tuxbot_vagrant_env",
+    destination: "~/tuxbot.env",
+    run: "always"
+  config.vm.synced_folder ".", "/vagrant"
+  config.vm.provision "shell", path: "provision_tuxbot_env", privileged: true, run: "always"
+  config.vm.provision "docker"
+end

packaging/linux/tuxbot/Vagrantfile.arm64

@@ -0,0 +1,28 @@
+Vagrant.configure("2") do |config|
+  config.vm.box = "bento/debian-11"
+  config.vm.provider "vmware_desktop" do |v|
+    v.gui = true
+  end
+  config.vm.provision "shell", path: "provision_tuxbot_disk.arm64", privileged: true
+  config.vm.provision "shell", path: "provision_tuxbot_root.arm64", privileged: true
+  config.vm.provision "shell", path: "provision_tuxbot_user.arm64", privileged: false
+  config.vm.provision "file",
+    source: "#{ENV['GOPATH']}/src/github.com/keybase/client/packaging/linux/tuxbot/cleanup",
+    destination: "~/cleanup", run: "always"
+  config.vm.provision "file",
+    source: "#{ENV['GOPATH']}/src/github.com/keybase/client/packaging/linux/tuxbot/restartdocker",
+    destination: "~/restartdocker", run: "always"
+  config.vm.provision "file",
+    source: "#{ENV['GOPATH']}/src/github.com/keybase/client/packaging/linux/tuxbot/ssh_config",
+    destination: "~/.ssh/config", run: "always"
+  config.vm.provision "file",
+    source: "#{ENV['GOPATH']}/src/github.com/keybase/client/packaging/linux/tuxbot/ssh_known_hosts",
+    destination: "~/.ssh/known_hosts", run: "always"
+  config.vm.provision "file",
+    source: "~/tuxbot_vagrant_env",
+    destination: "~/tuxbot.env",
+    run: "always"
+  config.vm.synced_folder ".", "/vagrant"
+  config.vm.provision "shell", path: "provision_tuxbot_env", privileged: true, run: "always"
+  config.vm.provision "docker"
+end

packaging/linux/tuxbot/provision_tuxbot_disk.arm64

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+set -euox pipefail
+
+export DEBIAN_FRONTEND=noninteractive
+apt-get --allow-releaseinfo-change update

packaging/linux/tuxbot/provision_tuxbot_root.arm64

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+set -euox pipefail
+
+export DEBIAN_FRONTEND=noninteractive
+
+apt-get --allow-releaseinfo-change update
+apt-get install -yq git curl vim python3-pip jq
+
+GOLANG_VERSION=1.21.6
+GOLANG_DOWNLOAD_URL=https://dl.google.com/go/go$GOLANG_VERSION.linux-arm64.tar.gz
+GOLANG_DOWNLOAD_SHA256=e2e8aa88e1b5170a0d495d7d9c766af2b2b6c6925a8f8956d834ad6b4cacbd9a
+wget "$GOLANG_DOWNLOAD_URL" -O /root/go.tar.gz
+echo "$GOLANG_DOWNLOAD_SHA256 /root/go.tar.gz" | sha256sum --check --status --strict -
+tar -C /usr/local -xzf /root/go.tar.gz
+ln -sf /usr/local/go/bin/go /usr/bin/go
+rm /root/go.tar.gz
+
+pip3 install s3cmd
+apt-get -yq install libssl-dev libffi-dev
+pip3 install triplesec
+
+usermod -aG systemd-journal vagrant

packaging/linux/tuxbot/provision_tuxbot_user.arm64

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+set -euox pipefail
+
+KBCLID="$HOME/go/src/github.com/keybase/client"
+TUXBOTD="$KBCLID/packaging/linux/tuxbot"
+
+# clone in gopath for bot
+mkdir -p "$HOME/go/src/github.com/keybase"
+git clone https://github.com/keybase/client.git "$HOME/go/src/github.com/keybase/client"
+cd "$KBCLID/go"
+go install -tags "prerelease production" ./keybase
+sudo cp $HOME/go/bin/keybase /usr/bin
+go install -tags "prerelease production" ./kbfs/kbfsfuse
+sudo cp $HOME/go/bin/kbfsfuse /usr/bin
+(
+    # install deps
+    cd "$TUXBOTD/bot"
+    git checkout master
+    go mod tidy
+)
+systemctl --user link "$KBCLID/packaging/linux/systemd/keybase.service"
+systemctl --user link "$KBCLID/packaging/linux/systemd/kbfs.service"
+systemctl --user link "$TUXBOTD/tuxbot.service"
+systemctl --user link "$TUXBOTD/nightly.service"
+systemctl --user link "$TUXBOTD/nightly.timer"
+systemctl --user link "$TUXBOTD/docker-cleanup.service"
+systemctl --user link "$TUXBOTD/docker-cleanup.timer"
+systemctl --user daemon-reload
+systemctl --user enable "$TUXBOTD/nightly.timer"
+systemctl --user enable "$TUXBOTD/docker-cleanup.timer"
+
+keybase config set -b enable_bot_lite_mode true
+keybase config set kbfs.mode constrained
+systemctl --user enable --now keybase.service kbfs.service
+
+# clone for the build
+git clone https://github.com/keybase/client.git "$HOME/client"