Limit external configuration sources parsing in native-mode

core/deployment/src/main/java/io/quarkus/deployment/steps/ConfigBuildSteps.java

@@ -15,7 +15,9 @@
 import io.quarkus.deployment.builditem.StaticInitConfigBuilderBuildItem;
 import io.quarkus.deployment.builditem.nativeimage.RuntimeInitializedClassBuildItem;
 import io.quarkus.deployment.builditem.nativeimage.ServiceProviderBuildItem;
+import io.quarkus.deployment.pkg.steps.NativeOrNativeSourcesBuild;
 import io.quarkus.deployment.util.ServiceUtil;
+import io.quarkus.runtime.configuration.FileSystemOnlySourcesConfigBuilder;
 import io.quarkus.runtime.configuration.SystemOnlySourcesConfigBuilder;
 import io.quarkus.runtime.graal.InetRunTime;
 import io.smallrye.config.ConfigSourceInterceptor;
@@ -55,13 +57,23 @@ RuntimeInitializedClassBuildItem runtimeInitializedClass() {
         return new RuntimeInitializedClassBuildItem(InetRunTime.class.getName());
     }
 
-    @BuildStep(onlyIf = SystemOnlySources.class)
+    @BuildStep(onlyIf = SystemOnlySources.class, onlyIfNot = NativeOrNativeSourcesBuild.class)
     void systemOnlySources(BuildProducer<StaticInitConfigBuilderBuildItem> staticInitConfigBuilder,
             BuildProducer<RunTimeConfigBuilderBuildItem> runTimeConfigBuilder) {
         staticInitConfigBuilder.produce(new StaticInitConfigBuilderBuildItem(SystemOnlySourcesConfigBuilder.class.getName()));
         runTimeConfigBuilder.produce(new RunTimeConfigBuilderBuildItem(SystemOnlySourcesConfigBuilder.class.getName()));
     }
 
+    /**
+     * Limit external configuration sources parsing for native executables since they are not supported see
+     * https://github.com/quarkusio/quarkus/issues/41994
+     */
+    @BuildStep(onlyIf = NativeOrNativeSourcesBuild.class)
+    void nativeNoSources(BuildProducer<StaticInitConfigBuilderBuildItem> staticInitConfigBuilder,
+            BuildProducer<RunTimeConfigBuilderBuildItem> runTimeConfigBuilder) {
+        runTimeConfigBuilder.produce(new RunTimeConfigBuilderBuildItem(FileSystemOnlySourcesConfigBuilder.class.getName()));
+    }
+
     private static class SystemOnlySources implements BooleanSupplier {
         ConfigBuildTimeConfig configBuildTimeConfig;
 

core/deployment/src/main/java/io/quarkus/deployment/steps/ConfigGenerationBuildStep.java

@@ -58,6 +58,7 @@
 import io.quarkus.deployment.builditem.ShutdownContextBuildItem;
 import io.quarkus.deployment.builditem.StaticInitConfigBuilderBuildItem;
 import io.quarkus.deployment.builditem.SuppressNonRuntimeConfigChangedWarningBuildItem;
+import io.quarkus.deployment.builditem.nativeimage.NativeImageResourceBuildItem;
 import io.quarkus.deployment.builditem.nativeimage.ReflectiveClassBuildItem;
 import io.quarkus.deployment.builditem.nativeimage.ReflectiveMethodBuildItem;
 import io.quarkus.deployment.configuration.BuildTimeConfigurationReader;
@@ -438,6 +439,56 @@ public void watchConfigFiles(BuildProducer<HotDeploymentWatchedFileBuildItem> wa
         }
     }
 
+    /**
+     * Registers configuration files for access at runtime in native-mode. Doesn't use absolute paths.
+     */
+    @BuildStep
+    public NativeImageResourceBuildItem nativeConfigFiles() {
+        List<String> configFiles = new ArrayList<>();
+
+        SmallRyeConfig config = ConfigProvider.getConfig().unwrap(SmallRyeConfig.class);
+
+        // Main files
+        configFiles.add("application.properties");
+        configFiles.add("META-INF/microprofile-config.properties");
+        configFiles.add(".env");
+        configFiles.add(Paths.get("config", "application.properties").toString());
+
+        // Profiles
+        for (String profile : config.getProfiles()) {
+            configFiles.add(String.format("application-%s.properties", profile));
+            configFiles.add(String.format("META-INF/microprofile-config-%s.properties", profile));
+            configFiles.add(String.format(".env-%s", profile));
+            configFiles.add(Paths.get("config", String.format("application-%s.properties", profile))
+                    .toString());
+        }
+
+        Optional<List<URI>> optionalLocations = config.getOptionalValues(SMALLRYE_CONFIG_LOCATIONS, URI.class);
+        optionalLocations.ifPresent(locations -> {
+            for (URI location : locations) {
+                Path path = location.getScheme() != null && location.getScheme().equals("file") ? Paths.get(location)
+                        : Paths.get(location.getPath());
+                // Include missing files as smallrye will still try to access them at runtime
+                if (Files.isRegularFile(path) || !Files.exists(path)) {
+                    configFiles.add(path.toString());
+                    for (String profile : config.getProfiles()) {
+                        configFiles.add(appendProfileToFilename(path, profile));
+                    }
+                } else if (Files.isDirectory(path)) {
+                    try (DirectoryStream<Path> files = Files.newDirectoryStream(path, Files::isRegularFile)) {
+                        for (Path file : files) {
+                            configFiles.add(file.toString());
+                        }
+                    } catch (IOException e) {
+                        // Ignore
+                    }
+                }
+            }
+        });
+
+        return new NativeImageResourceBuildItem(configFiles);
+    }
+
     @BuildStep
     @Record(ExecutionTime.RUNTIME_INIT)
     void unknownConfigFiles(
@@ -676,7 +727,6 @@ private static Set<String> discoverService(
             // The discovery includes deployment modules, so we only include services available at runtime
             if (QuarkusClassLoader.isClassPresentAtRuntime(service)) {
                 services.add(service);
-                reflectiveClass.produce(ReflectiveClassBuildItem.builder(service).build());
             }
         }
         return services;

core/runtime/src/main/java/io/quarkus/runtime/configuration/FileSystemOnlySourcesConfigBuilder.java

@@ -0,0 +1,22 @@
+package io.quarkus.runtime.configuration;
+
+import static io.smallrye.config.PropertiesConfigSourceLoader.inFileSystem;
+
+import java.nio.file.Paths;
+
+import io.smallrye.config.SmallRyeConfigBuilder;
+
+public class FileSystemOnlySourcesConfigBuilder implements ConfigBuilder {
+    @Override
+    public SmallRyeConfigBuilder configBuilder(final SmallRyeConfigBuilder builder) {
+        return builder.setAddDefaultSources(false).addSystemSources().withSources(
+                inFileSystem(Paths.get(System.getProperty("user.dir"), "config", "application.properties").toUri().toString(),
+                        260, builder.getClassLoader()));
+    }
+
+    @Override
+    public int priority() {
+        return Integer.MAX_VALUE;
+    }
+
+}

extensions/config-yaml/deployment/src/main/java/io/quarkus/config/yaml/deployment/ConfigYamlProcessor.java

@@ -6,6 +6,7 @@
 
 import org.eclipse.microprofile.config.ConfigProvider;
 
+import io.quarkus.config.yaml.runtime.NativeYamlConfigBuilder;
 import io.quarkus.config.yaml.runtime.YamlConfigBuilder;
 import io.quarkus.deployment.Feature;
 import io.quarkus.deployment.annotations.BuildProducer;
@@ -14,6 +15,8 @@
 import io.quarkus.deployment.builditem.HotDeploymentWatchedFileBuildItem;
 import io.quarkus.deployment.builditem.RunTimeConfigBuilderBuildItem;
 import io.quarkus.deployment.builditem.StaticInitConfigBuilderBuildItem;
+import io.quarkus.deployment.builditem.nativeimage.NativeImageResourceBuildItem;
+import io.quarkus.deployment.pkg.steps.NativeOrNativeSourcesBuild;
 import io.smallrye.config.SmallRyeConfig;
 
 public final class ConfigYamlProcessor {
@@ -23,7 +26,7 @@ public FeatureBuildItem feature() {
         return new FeatureBuildItem(Feature.CONFIG_YAML);
     }
 
-    @BuildStep
+    @BuildStep(onlyIfNot = NativeOrNativeSourcesBuild.class)
     public void yamlConfig(
             BuildProducer<StaticInitConfigBuilderBuildItem> staticInitConfigBuilder,
             BuildProducer<RunTimeConfigBuilderBuildItem> runTimeConfigBuilder) {
@@ -32,12 +35,23 @@ public void yamlConfig(
         runTimeConfigBuilder.produce(new RunTimeConfigBuilderBuildItem(YamlConfigBuilder.class));
     }
 
+    /**
+     * Limit external configuration sources parsing for native executables since they are not supported see
+     * https://github.com/quarkusio/quarkus/issues/41994
+     */
+    @BuildStep(onlyIf = NativeOrNativeSourcesBuild.class)
+    void nativeNoSources(BuildProducer<RunTimeConfigBuilderBuildItem> runTimeConfigBuilder) {
+        runTimeConfigBuilder.produce(new RunTimeConfigBuilderBuildItem(NativeYamlConfigBuilder.class));
+    }
+
     @BuildStep
     void watchYamlConfig(BuildProducer<HotDeploymentWatchedFileBuildItem> watchedFiles) {
         List<String> configWatchedFiles = new ArrayList<>();
         String userDir = System.getProperty("user.dir");
 
         // Main files
+        configWatchedFiles.add("META-INF/microprofile-config.yaml");
+        configWatchedFiles.add("META-INF/microprofile-config.yml");
         configWatchedFiles.add("application.yaml");
         configWatchedFiles.add("application.yml");
         configWatchedFiles.add(Paths.get(userDir, "config", "application.yaml").toAbsolutePath().toString());
@@ -58,4 +72,31 @@ void watchYamlConfig(BuildProducer<HotDeploymentWatchedFileBuildItem> watchedFil
             watchedFiles.produce(new HotDeploymentWatchedFileBuildItem(configWatchedFile));
         }
     }
+
+    /**
+     * Registers configuration files for access at runtime in native-mode. Doesn't use absolute paths.
+     */
+    @BuildStep
+    NativeImageResourceBuildItem nativeYamlConfig() {
+        List<String> configFiles = new ArrayList<>();
+
+        // Main files
+        configFiles.add("META-INF/microprofile-config.yaml");
+        configFiles.add("META-INF/microprofile-config.yml");
+        configFiles.add("application.yaml");
+        configFiles.add("application.yml");
+        configFiles.add(Paths.get("config", "application.yaml").toString());
+        configFiles.add(Paths.get("config", "application.yml").toString());
+
+        // Profiles
+        SmallRyeConfig config = ConfigProvider.getConfig().unwrap(SmallRyeConfig.class);
+        for (String profile : config.getProfiles()) {
+            configFiles.add(String.format("application-%s.yaml", profile));
+            configFiles.add(String.format("application-%s.yml", profile));
+            configFiles.add(Paths.get("config", String.format("application-%s.yaml", profile)).toString());
+            configFiles.add(Paths.get("config", String.format("application-%s.yml", profile)).toString());
+        }
+
+        return new NativeImageResourceBuildItem(configFiles);
+    }
 }

extensions/config-yaml/runtime/src/main/java/io/quarkus/config/yaml/runtime/NativeYamlConfigBuilder.java

@@ -0,0 +1,12 @@
+package io.quarkus.config.yaml.runtime;
+
+import io.quarkus.runtime.configuration.ConfigBuilder;
+import io.smallrye.config.SmallRyeConfigBuilder;
+import io.smallrye.config.source.yaml.YamlConfigSourceLoader;
+
+public class NativeYamlConfigBuilder implements ConfigBuilder {
+    @Override
+    public SmallRyeConfigBuilder configBuilder(final SmallRyeConfigBuilder builder) {
+        return builder.withSources(new YamlConfigSourceLoader.InFileSystem());
+    }
+}