Configure gateway limits and encrypted storage

test/cloud/lunarsky/store/EncryptedVolumeTest.java

@@ -0,0 +1,42 @@
+package cloud.lunarsky.store;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Map;
+
+public final class EncryptedVolumeTest {
+    private static void rejected(Map<String, String> configuration) throws Exception {
+        try {
+            EncryptedVolume.requireConfigured(configuration);
+            throw new AssertionError("Unavailable encrypted storage was accepted");
+        } catch (IOException expected) { }
+    }
+
+    public static void main(String[] args) throws Exception {
+        Path directory = Files.createTempDirectory("objectstore-encrypted-volume-");
+        Path marker = directory.resolve(".objectstore-encrypted");
+        String id = "0123456789abcdef0123456789abcdef";
+        Map<String, String> configuration = Map.of(
+            "ENCRYPTED_VOLUME_MARKER_FILE", marker.toString(), "ENCRYPTED_VOLUME_ID", id);
+        try {
+            EncryptedVolume.requireConfigured(Map.of());
+            rejected(configuration);
+            Files.writeString(marker, id + "\n");
+            EncryptedVolume.requireConfigured(configuration);
+            rejected(Map.of("ENCRYPTED_VOLUME_MARKER_FILE", marker.toString()));
+            rejected(Map.of("ENCRYPTED_VOLUME_MARKER_FILE", marker.toString(),
+                "ENCRYPTED_VOLUME_ID", "fedcba9876543210fedcba9876543210"));
+            Files.delete(marker);
+            Path elsewhere = directory.resolve("elsewhere");
+            Files.writeString(elsewhere, id + "\n");
+            Files.createSymbolicLink(marker, elsewhere);
+            rejected(configuration);
+        } finally {
+            Files.deleteIfExists(marker);
+            Files.deleteIfExists(directory.resolve("elsewhere"));
+            Files.delete(directory);
+        }
+        System.out.println("Encrypted volume marker tests passed");
+    }
+}