From 520ccf8c293d09bed576fa05ec2ac4def2d11c6f Mon Sep 17 00:00:00 2001
From: Natanael Copa <ncopa@alpinelinux.org>
Date: Tue, 10 Dec 2024 15:15:28 +0200
Subject: [PATCH] alpine: fix arch and enable mips64 and s390x

Fix detecion of the alpine architecture name.

This allows us to create both armv7 and armhf (armv6) containers on an
aarch64 host. eg.

  lxc-create -t alpine a1 -- -a armv7

It also allows us to create mips64 and s390x containers, and potentially
new architectures in the future.
---
 templates/lxc-alpine.in | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/templates/lxc-alpine.in b/templates/lxc-alpine.in
index 535d0ef..8d1c09e 100644
--- a/templates/lxc-alpine.in
+++ b/templates/lxc-alpine.in
@@ -133,13 +133,18 @@ latest_release_branch() {
 
 parse_arch() {
 	case "$1" in
-		x86 | i[3-6]86) echo 'x86';;
-		x86_64 | amd64) echo 'x86_64';;
-		aarch64 | arm64) echo 'aarch64';;
-		armv7) echo 'armv7';;
-		arm*) echo 'armhf';;
-		ppc64le) echo 'ppc64le';;
-		*) return 1;;
+		i[3-6]86) echo 'x86';;
+		amd64) echo 'x86_64';;
+		arm64) echo 'aarch64';;
+		armv6) echo 'armhf';;
+		*) echo "$1";;
+	esac
+}
+
+lxc_arch() {
+	case "$1" in
+		armv[67]) echo "armhf";;
+		*) echo "$1";;
 	esac
 }
 
@@ -261,7 +266,8 @@ install() {
 		echo "$MIRROR_URL/$branch/$repo" >> etc/apk/repositories
 	done
 
-	install_packages "$arch" "alpine-base $extra_packages"
+	install_packages "$arch" "alpine-base $extra_packages" \
+		|| die 1 "Failed to install $arch packages"
 	make_dev_nodes
 	setup_inittab
 	setup_hosts
@@ -383,7 +389,7 @@ setup_services() {
 configure_container() {
 	local config="$1"
 	local hostname="$2"
-	local arch="$3"
+	local arch="$(lxc_arch "$3")"
 
 	cat <<-EOF >> "$config"
 
@@ -498,12 +504,11 @@ if [ -z "$rootfs" ]; then
 	rootfs="$path/rootfs"
 fi
 
-arch=$(parse_arch "$arch") \
-	|| die 1 "Unsupported architecture: $arch"
+arch=$(parse_arch "$arch")
 
 if [ -z "$release" ]; then
 	release=$(latest_release_branch "$arch") \
-		|| die 2 'Failed to resolve Alpine last release branch'
+		|| die 2 "Failed to resolve Alpine $arch last release branch"
 fi
 
 # Here we go!