enable pip/setuptools specific versions in project configration

cob/bootstrapping.py

@@ -72,6 +72,7 @@ def _ensure_virtualenv():
             args.extend(['-i', os.environ[PYPI_INDEX_ENV_VAR]])
         _virtualenv_pip_install(args)
 
+
     pypi_index_url = get_project().get_pypi_index_url()
     deps = sorted(get_project().get_deps())
     if pypi_index_url:
@@ -91,6 +92,19 @@ def _create_virtualenv(path):
         interpreter = sys.executable
 
     _execute_long_command([interpreter, '-m', 'virtualenv', path], 'Creating virtualenv')
+    _alter_virtualenv_if_needed()
+
+def _alter_virtualenv_if_needed():
+    '''In case a specific pip/setuptools are needed inside the virtualenv '''
+    click.echo("Altering Virtualenv")
+    _deps = []
+    if get_project().config.get('pip_version'):
+        _deps.extend([f"pip=={get_project().config.get('pip_version')}"])
+
+    if get_project().config.get('setuptools_version'):
+        _deps.extend([f"setuptools=={get_project().config.get('setuptools_version')}"])
+    if _deps:
+        _virtualenv_pip_install(_deps)
 
 def _locate_original_interpreter():
     if not os.environ.get('COB_FORCE_CURRENT_INTERPRETER'):

cob/cli/docker_cli.py

@@ -57,11 +57,24 @@ def generate_dockerfile():
     else:
         sdist_file_name = None
 
+    _pip = 'pip'
+    _setuptools = 'setuptools'
+
+    pip_ver = proj.config.get('pip_version')
+    if pip_ver:
+        _pip += f'=={pip_ver}'
+
+    setuptools_ver = proj.config.get('setuptools_version')
+    if setuptools_ver:
+        _setuptools += f'=={setuptools_ver}'
+
     with open(".Dockerfile", "w") as f:
         f.write(template.render(
             project=proj,
             deployment_base_image='python:3.6-jessie',
             python_version='3.6',
+            pip=_pip,
+            setuptools=_setuptools,
             is_develop=is_develop(),
             cob_sdist_filename=os.path.basename(sdist_file_name) if sdist_file_name else None,
             cob_root=cob_root() if is_develop() else None,

cob/templates/Dockerfile.j2

@@ -21,8 +21,7 @@ RUN echo "deb-src http://nginx.org/packages/mainline/debian/ jessie nginx" | tee
 RUN apt-get update
 RUN apt-get install -y nginx
 
-
-RUN $PYTHON_EXECUTABLE -m pip install -U virtualenv pip setuptools
+RUN $PYTHON_EXECUTABLE -m pip install -U virtualenv {{pip}} {{setuptools}}
 
 ADD . /app
 RUN rm -rf /app/.cob