diff --git a/metropolis/node/erofs-layout.fsspec b/metropolis/node/erofs-layout.fsspec
new file mode 100644
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+++ b/metropolis/node/erofs-layout.fsspec
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+# Directory layout of Metropolis node rootfs (on erofs).
+
+directory <
+    path: "/kubernetes/conf/flexvolume-plugins"
+    mode: 0555 uid: 0 gid: 0
+>
+directory <
+    path: "/containerd/plugins"
+    mode: 0555 uid: 0 gid: 0
+>
+directory <
+    path: "/sys"
+    mode: 0555 uid: 0 gid: 0
+>
+directory <
+    path: "/proc"
+    mode: 0555 uid: 0 gid: 0
+>
+directory <
+    path: "/dev"
+    mode: 0555 uid: 0 gid: 0
+>
+directory <
+    path: "/esp"
+    mode: 0555 uid: 0 gid: 0
+>
+directory <
+    path: "/tmp"
+    mode: 0555 uid: 0 gid: 0
+>
+directory <
+    path: "/run"
+    mode: 0555 uid: 0 gid: 0
+>
+directory <
+    path: "/ephemeral"
+    mode: 0555 uid: 0 gid: 0
+>
+directory <
+    path: "/data"
+    mode: 0555 uid: 0 gid: 0
+>