Add Gitea Alpine registry workflow

scripts/apk/build.sh

@@ -4,9 +4,18 @@ set -euo pipefail
 command_name="${1:-build}"
 requested_arch="${2:-${ALPINE_ARCH:-x86_64}}"
 repo_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
-alpine_version="${ALPINE_VERSION:-3.22}"
+alpine_version="${ALPINE_VERSION:-3.23}"
 repo_name="${ALPINE_REPO_NAME:-local}"
 build_platform="${ALPINE_BUILD_PLATFORM:-linux/amd64}"
+builder_uid="$(id -u)"
+builder_gid="$(id -g)"
+
+if [[ "${builder_uid}" == "0" ]]; then
+  builder_uid=1000
+fi
+if [[ "${builder_gid}" == "0" ]]; then
+  builder_gid=1000
+fi
 
 validate_arch() {
   case "$1" in
@@ -26,8 +35,8 @@ run_for_arch() {
   docker build \
     --platform "${build_platform}" \
     --build-arg "ALPINE_VERSION=${alpine_version}" \
-    --build-arg "BUILDER_UID=$(id -u)" \
-    --build-arg "BUILDER_GID=$(id -g)" \
+    --build-arg "BUILDER_UID=${builder_uid}" \
+    --build-arg "BUILDER_GID=${builder_gid}" \
     -f "${repo_root}/scripts/apk/Dockerfile" \
     -t "${image_name}" \
     "${repo_root}"
@@ -41,7 +50,7 @@ run_for_arch() {
     -e "ALPINE_ARCH=${arch}" \
     -e "CARCH=${arch}" \
     -e "ALPINE_REPO_NAME=${repo_name}" \
-    -e "PACKAGER=${PACKAGER:-Local Builder <local@example.invalid>}" \
+    -e "PACKAGER=${PACKAGER:-Joachim Schlöffel <me@joachim-schloeffel.com>}" \
     -v "${repo_root}:/work" \
     -v "${repo_root}/.cache/abuild:/home/builder/.abuild" \
     -v "${repo_root}/.cache/apk-distfiles:/var/cache/distfiles" \