Deprecate config paths (#1336)

docs/src/main/asciidoc/property-source-config.adoc

@@ -581,6 +581,8 @@ Kubernetes service accounts, roles and role bindings.
 
 Another option for using `ConfigMap` instances is to mount them into the Pod by running the Spring Cloud Kubernetes application
 and having Spring Cloud Kubernetes read them from the file system.
+
+NOTE: This feature is deprecated and will be removed in a future release (Use `spring.config.import` instead).
 This behavior is controlled by the `spring.cloud.kubernetes.config.paths` property. You can use it in
 addition to or instead of the mechanism described earlier.
 `spring.cloud.kubernetes.config.paths` expects a List of full paths to each property file, because directories are not being recursively parsed. For example:

spring-cloud-kubernetes-commons/src/main/java/org/springframework/cloud/kubernetes/commons/config/ConfigMapPropertySourceLocator.java

@@ -99,6 +99,7 @@ public Collection<PropertySource<?>> locateCollection(Environment environment) {
 
 	private void addPropertySourcesFromPaths(Environment environment, CompositePropertySource composite) {
 		Set<String> uniquePaths = new LinkedHashSet<>(properties.paths());
+		LOG.warn("path support is deprecated and will be removed in a future release. Please use spring.config.import");
 		LOG.debug("paths property sources : " + uniquePaths);
 		uniquePaths.stream().map(Paths::get).filter(p -> {
 			boolean exists = Files.exists(p);

spring-cloud-kubernetes-commons/src/main/java/org/springframework/cloud/kubernetes/commons/config/SecretsPropertySourceLocator.java

@@ -112,6 +112,8 @@ protected abstract SecretsPropertySource getPropertySource(ConfigurableEnvironme
 
 	protected void putPathConfig(CompositePropertySource composite) {
 
+		LOG.warn("path support is deprecated and will be removed in a future release. Please use spring.config.import");
+
 		this.properties.paths().stream().map(Paths::get).filter(Files::exists).flatMap(x -> {
 			try {
 				return Files.walk(x);