diff --git a/build.py b/build.py
index 7a5a489..06c0dc9 100644
--- a/build.py
+++ b/build.py
@@ -28,7 +28,7 @@ use_plugin("python.distutils")
 default_task = "publish"
 
 name = "ddadevops"
-version = "4.0.0-dev48"
+version = "4.0.0-dev52"
 summary = "tools to support builds combining gopass, terraform, dda-pallet, aws & hetzner-cloud"
 description = __doc__
 authors = [Author("meissa GmbH", "buero@meissa-gmbh.de")]
diff --git a/src/main/python/ddadevops/application/__init__.py b/src/main/python/ddadevops/application/__init__.py
index 9f46f1a..f087165 100644
--- a/src/main/python/ddadevops/application/__init__.py
+++ b/src/main/python/ddadevops/application/__init__.py
@@ -1,2 +1,3 @@
 from .image_build_service import ImageBuildService
 from .release_mixin_services import ReleaseService
+from .terraform_service import TerraformService
diff --git a/src/main/python/ddadevops/application/terraform_service.py b/src/main/python/ddadevops/application/terraform_service.py
index a0986ab..b093f2a 100644
--- a/src/main/python/ddadevops/application/terraform_service.py
+++ b/src/main/python/ddadevops/application/terraform_service.py
@@ -50,12 +50,10 @@ class TerraformService:
             print(output)
 
     def copy_local_state(self, devops: Devops):
-        # TODO: orignal was unchecked ...
-        self.file_api.cp("terraform.tfstate", devops.build_path())
+        self.file_api.cp("terraform.tfstate", devops.build_path(), check=False)
 
     def rescue_local_state(self, devops: Devops):
-        # TODO: orignal was unchecked ...
-        self.file_api.cp(f"{devops.build_path()}/terraform.tfstate", ".")
+        self.file_api.cp(f"{devops.build_path()}/terraform.tfstate", ".", check=False)
 
     def initialize_build_dir(self, devops: Devops):
         terraform = devops.specialized_builds[BuildType.TERRAFORM]
@@ -63,12 +61,11 @@ class TerraformService:
             self.__copy_build_resources_from_package__(devops)
         else:
             self.__copy_build_resources_from_dir__(devops)
-        # TODO: orignal was unchecked ...
         self.copy_local_state(devops)
-        self.file_api.cp("*.tf", devops.build_path())
-        self.file_api.cp("*.properties", devops.build_path())
-        self.file_api.cp("*.tfvars", devops.build_path())
-        self.file_api.cp_recursive("scripts", devops.build_path())
+        self.file_api.cp("*.tf", devops.build_path(), check=False)
+        self.file_api.cp("*.properties", devops.build_path(), check=False)
+        self.file_api.cp("*.tfvars", devops.build_path(), check=False)
+        self.file_api.cp_recursive("scripts", devops.build_path(), check=False)
 
     def init_client(self, devops: Devops):
         terraform_domain = devops.specialized_builds[BuildType.TERRAFORM]
diff --git a/src/main/python/ddadevops/devops_terraform_build.py b/src/main/python/ddadevops/devops_terraform_build.py
index 830c12f..6b0f8ce 100644
--- a/src/main/python/ddadevops/devops_terraform_build.py
+++ b/src/main/python/ddadevops/devops_terraform_build.py
@@ -1,4 +1,5 @@
 from .devops_build import DevopsBuild, create_devops_build_config
+from .application import TerraformService
 
 
 def create_devops_terraform_build_config(
@@ -48,7 +49,7 @@ class DevopsTerraformBuild(DevopsBuild):
         inp["mixin_types"] = config.get("mixin_types", [])
         super().__init__(project, inp)
         project.build_depends_on("dda-python-terraform")
-        self.teraform_service = Terraform.prod()
+        self.teraform_service = TerraformService.prod()
 
     def initialize_build_dir(self):
         super().initialize_build_dir()
diff --git a/src/main/python/ddadevops/infrastructure/infrastructure.py b/src/main/python/ddadevops/infrastructure/infrastructure.py
index 82ba879..80224ca 100644
--- a/src/main/python/ddadevops/infrastructure/infrastructure.py
+++ b/src/main/python/ddadevops/infrastructure/infrastructure.py
@@ -20,14 +20,14 @@ class FileApi:
         self.execution_api.execute("rm -rf " + directory)
         self.execution_api.execute("mkdir -p " + directory)
 
-    def cp(self, src: str, target_dir: str):
-        self.execution_api.execute(f"cp {src} {target_dir}")
+    def cp(self, src: str, target_dir: str, check=True):
+        self.execution_api.execute(f"cp {src} {target_dir}", check=check)
 
-    def cp_force(self, src: str, target_dir: str):
-        self.execution_api.execute("cp -f " + src + "* " + target_dir)
+    def cp_force(self, src: str, target_dir: str, check=True):
+        self.execution_api.execute(f"cp -f {src}* {target_dir}", check=check)
 
-    def cp_recursive(self, src: str, target_dir: str):
-        self.execution_api.execute("cp -r " + src + " " + target_dir)
+    def cp_recursive(self, src: str, target_dir: str, check=True):
+        self.execution_api.execute(f"cp -r {src} {target_dir}", check=check)
 
     def write_data_to_file(self, path: Path, data: bytes):
         with open(path, "w", encoding="utf-8") as output_file:
@@ -47,6 +47,7 @@ class FileApi:
         with open(path, "r", encoding="utf-8") as input_file:
             return load(input_file)
 
+
 class ImageApi:
     def image(self, name: str, path: Path):
         run(
@@ -101,12 +102,15 @@ class ImageApi:
 
 
 class ExecutionApi:
-    def execute(self, command: str, dry_run=False, shell=True):
+    def execute(self, command: str, dry_run=False, shell=True, check=True):
         output = ""
         if dry_run:
             print(command)
         else:
-            output = check_output(command, encoding="UTF-8", shell=shell)
+            # output = check_output(command, encoding="UTF-8", shell=shell)
+            output = run(
+                command, encoding="UTF-8", shell=shell, stdout=PIPE, check=check
+            ).stdout
             output = output.rstrip()
         return output