Added support of YDB_FEATURE_FLAGS

Author: alex268

tests/common/src/main/java/tech/ydb/test/integration/YdbEnvironment.java

@@ -20,6 +20,7 @@ public class YdbEnvironment {
     private final Supplier<String> dockerImage = createParam("YDB_DOCKER_IMAGE", YDB_DEFAULT_IMAGE);
     private final Supplier<String> dockerDatabase = createParam("YDB_DOCKER_DATABASE", "/local");
     private final Supplier<String> dockerPemPath = createParam("YDB_DOCKER_PEM_PATH", "/ydb_certs/ca.pem");
+    private final Supplier<String> dockerFeatures = createParam("YDB_DOCKER_FEATURE_FLAGS", "");
     private final Supplier<Boolean> dockerReuse = createParam("YDB_DOCKER_REUSE", true);
 
     private final Supplier<Boolean> cleanUpTests = createParam("YDB_CLEAN_UP", true);
@@ -62,6 +63,10 @@ public boolean dockerReuse() {
         return dockerReuse.get();
     }
 
+    public String dockerFeatures() {
+        return dockerFeatures.get();
+    }
+
     public boolean cleanUpTests() {
         return cleanUpTests.get();
     }

tests/common/src/main/java/tech/ydb/test/integration/docker/YdbDockerContainer.java

@@ -53,6 +53,11 @@ public void init() {
         }
 
         withEnv("YDB_USE_IN_MEMORY_PDISKS", "true");
+
+        if (env.dockerFeatures() != null && !env.dockerFeatures().isEmpty()) {
+            withEnv("YDB_FEATURE_FLAGS", env.dockerFeatures());
+        }
+
         withReuse(env.dockerReuse());
 
         String id = "ydb-" + UUID.randomUUID();

tests/common/src/test/java/tech/ydb/test/integration/YdbEnvironmentTest.java

@@ -92,6 +92,7 @@ public void rewriteAllParams() {
         params.put("YDB_DOCKER_DATABASE", "/remote");
         params.put("YDB_DOCKER_PEM_PATH", "/certs/ca.pem");
         params.put("YDB_DOCKER_REUSE", "false");
+        params.put("YDB_DOCKER_FEATURE_FLAGS", "enable_views");
 
         params.put("YDB_DOCKER_ISOLATION", "false");
         params.put("YDB_DISABLE_INTEGRATION_TESTS", "tru");
@@ -113,6 +114,7 @@ public void rewriteAllParams() {
             Assert.assertEquals("check YDB_DOCKER_DATABASE", "/remote", env.dockerDatabase());
             Assert.assertEquals("check YDB_DOCKER_PEM_PATH", "/certs/ca.pem", env.dockerPemPath());
             Assert.assertEquals("check YDB_DOCKER_REUSE", false, env.dockerReuse());
+            Assert.assertEquals("check YDB_DOCKER_FEATURE_FLAGS", "enable_views", env.dockerFeatures());
 
             Assert.assertEquals("check YDB_DISABLE_INTEGRATION_TESTS", false, env.disableIntegrationTests());
             // ENV has higher priority