Add scripts to build alpine packages with podman

podman-build.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+set -ex
+cd "$(dirname "$0")"
+
+package="$1"
+builder_image="mullvad-slint-musl-builder"
+. "$HOME/.abuild/abuild.conf"
+
+podman build . -f Dockerfile -t "$builder_image"
+podman run --rm \
+    -v "./$package":/build \
+    -v ./abuild.conf:/root/.abuild/abuild.conf:ro \
+    -v "$PACKAGER_PRIVKEY":/key.rsa:ro \
+    -v "$PACKAGER_PRIVKEY.pub":/key.rsa.pub:ro \
+    -v "$PACKAGER_PRIVKEY.pub":/etc/apk/keys/key.rsa.pub:ro \
+    -v ./target:/cargo-target \
+    -v ./packages:/root/packages \
+    -e "CARGO_TARGET_DIR=/cargo-target" \
+    -it \
+    "$builder_image" \
+    abuild -F
+