Adds /resolvedEnv endpoint (#54)

Adds /resolvedEnv endpoint

Author: Travis Tomsu

kork-web/kork-web.gradle

@@ -9,6 +9,7 @@ dependencies {
   compile spinnaker.dependency('retrofit')
   compile spinnaker.dependency('guava')
 
+  compileOnly spinnaker.dependency('bootActuator')
 
   spinnaker.group('spockBase')
 }

kork-web/src/main/groovy/com/netflix/spinnaker/config/TomcatConfiguration.groovy

@@ -22,17 +22,20 @@ import org.apache.catalina.connector.Connector
 import org.apache.coyote.http11.AbstractHttp11JsseProtocol
 import org.apache.coyote.http11.Http11NioProtocol
 import org.springframework.beans.factory.annotation.Value
+import org.springframework.boot.actuate.endpoint.ResolvedEnvironmentEndpoint
 import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression
 import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer
 import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer
 import org.springframework.boot.context.embedded.Ssl
 import org.springframework.boot.context.embedded.tomcat.TomcatConnectorCustomizer
 import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory
+import org.springframework.boot.context.properties.EnableConfigurationProperties
 import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.Configuration
 
 @Slf4j
 @Configuration
+@EnableConfigurationProperties(ResolvedEnvironmentEndpoint)
 class TomcatConfiguration {
   @Value('${default.legacyServerPort:-1}')
   int legacyServerPort

kork-web/src/main/groovy/org/springframework/boot/actuate/endpoint/ResolvedEnvironmentEndpoint.groovy

@@ -0,0 +1,74 @@
+/*
+ * Copyright 2016 Google, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.endpoint
+
+import org.springframework.boot.context.properties.ConfigurationProperties
+import org.springframework.core.env.ConfigurableEnvironment
+import org.springframework.core.env.EnumerablePropertySource
+import org.springframework.core.env.Environment
+import org.springframework.core.env.MutablePropertySources
+import org.springframework.core.env.StandardEnvironment
+
+@ConfigurationProperties(prefix = "endpoints.resolvedEnv")
+class ResolvedEnvironmentEndpoint extends AbstractEndpoint<Map<String, Object>> {
+
+  private final Sanitizer sanitizer = new Sanitizer();
+
+  public ResolvedEnvironmentEndpoint() {
+    super("resolvedEnv")
+  }
+
+  @Override
+  Map<String, Object> invoke() {
+    Environment environment = getEnvironment()
+    return getPropertyKeys().collectEntries {
+      [(it): sanitizer.sanitize(it, environment.getProperty(it))]
+    }
+  }
+
+  /**
+   * Impl partially copied from
+   * {@link org.springframework.boot.actuate.endpoint.EnvironmentEndpoint}
+   *
+   * This gathers all defined properties in the system (no matter the source)
+   */
+  private SortedSet<String> getPropertyKeys() {
+    SortedSet<String> result = new TreeSet<String>()
+    Environment environment = getEnvironment()
+
+    MutablePropertySources sources
+    if (environment && environment instanceof ConfigurableEnvironment) {
+      sources = ((ConfigurableEnvironment) environment).getPropertySources()
+    } else {
+      sources = new StandardEnvironment().getPropertySources()
+    }
+
+    sources.each {
+      if (it instanceof EnumerablePropertySource) {
+        ((EnumerablePropertySource) it).propertyNames.each {
+          result.add(it)
+        }
+      }
+    }
+
+    return result
+  }
+
+  public void setKeysToSanitize(String... keysToSanitize) {
+    this.sanitizer.setKeysToSanitize(keysToSanitize);
+  }
+}