use rootless podman

Author: nammn

scripts/dev/setup_ibm_container_runtime.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-set -Eeou pipefail
+set -Eeoux pipefail
 
 echo "Setting up IBM container runtime (rootless)"
 
@@ -14,6 +14,14 @@ if [[ ! -d "${runtime_dir}" ]]; then
 fi
 export XDG_RUNTIME_DIR="${runtime_dir}"
 
+# Clean up stale podman state (fixes "cannot re-exec process to join the existing user namespace")
+echo "Cleaning up stale podman state..."
+pkill -u "$(id -u)" -f "podman" 2>/dev/null || true
+rm -rf "${XDG_RUNTIME_DIR}/containers" 2>/dev/null || true
+rm -rf "${HOME}/.local/share/containers/storage/libpod" 2>/dev/null || true
+podman system migrate 2>/dev/null || true
+podman system reset --force 2>/dev/null || true
+
 # Install crun
 echo "Installing crun..."
 sudo dnf clean all || true