Add ability to configure suite using yaml file config

.gitignore

@@ -38,3 +38,4 @@ build/
 ## Suite specific files
 **/*.kubeconfig
 env
+config.yaml

src/main/java/io/odh/test/Environment.java

@@ -7,11 +7,16 @@
 import io.odh.test.install.InstallTypes;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.yaml.snakeyaml.Yaml;
 
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Objects;
@@ -25,10 +30,16 @@ public class Environment {
     private static final Logger LOGGER = LoggerFactory.getLogger(Environment.class);
     private static final Map<String, String> VALUES = new HashMap<>();
 
+    private static String config;
+
+    private static final Map<String, Object> YAML_DATA = loadConfigurationFile();
+
     public static final DateTimeFormatter DATE_FORMAT = DateTimeFormatter.ofPattern("yyyy-MM-dd_HH-mm");
 
     public static final String USER_PATH = System.getProperty("user.dir");
 
+    private static final String CONFIG_FILE_PATH_ENV = "ENV_FILE";
+
     private static final String USERNAME_ENV = "KUBE_USERNAME";
     private static final String PASSWORD_ENV = "KUBE_PASSWORD";
     private static final String TOKEN_ENV = "KUBE_TOKEN";
@@ -80,7 +91,8 @@ public class Environment {
 
     public static final Path LOG_DIR = getOrDefault(LOG_DIR_ENV, Paths::get, Paths.get(USER_PATH, "target", "logs")).resolve("test-run-" + DATE_FORMAT.format(LocalDateTime.now()));
 
-    private Environment() { }
+    private Environment() {
+    }
 
     static {
         String debugFormat = "{}: {}";
@@ -94,19 +106,37 @@ private Environment() { }
                 });
     }
 
-    public static void print() { }
+    public static void print() {
+    }
 
     private static String getOrDefault(String varName, String defaultValue) {
         return getOrDefault(varName, String::toString, defaultValue);
     }
 
     private static <T> T getOrDefault(String var, Function<String, T> converter, T defaultValue) {
-        String value = System.getenv(var);
+        String value = System.getenv(var) != null ?
+                System.getenv(var) :
+                (Objects.requireNonNull(YAML_DATA).get(var) != null ?
+                        YAML_DATA.get(var).toString() :
+                        null);
         T returnValue = defaultValue;
         if (value != null) {
             returnValue = converter.apply(value);
         }
         VALUES.put(var, String.valueOf(returnValue));
         return returnValue;
     }
+
+    private static Map<String, Object> loadConfigurationFile() {
+        config = System.getenv().getOrDefault(CONFIG_FILE_PATH_ENV,
+                Paths.get(System.getProperty("user.dir"), "config.yaml").toAbsolutePath().toString());
+        Yaml yaml = new Yaml();
+        try {
+            File yamlFile = new File(config).getAbsoluteFile();
+            return yaml.load(new FileInputStream(yamlFile));
+        } catch (IOException ex) {
+            LOGGER.info("Yaml configuration not provider or not exists");
+            return Collections.emptyMap();
+        }
+    }
 }