Drop docker-py from requirements.txt

Since addition of podman - users need to install only one from docker|podman

Change-Id: I622eefad3b2e93f334028d9c0775a2cca558a39c

requirements.txt

@@ -1,5 +1,4 @@
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
-docker>=3.0.0 # Apache-2.0
 Jinja2>=3.0.1 # BSD License (3 clause)
 GitPython>=1.0.1 # BSD License (3 clause)
 oslo.config>=5.1.0 # Apache-2.0

test-requirements.txt

@@ -2,6 +2,7 @@ bandit!=1.6.0,>=1.1.0 # Apache-2.0
 bashate>=0.5.1 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 ddt>=1.0.1 # MIT
+docker>=3.0.0 # Apache-2.0
 hacking>=3.0.1,<3.1.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
 stestr>=2.2.0 # Apache-2.0

tests/playbooks/pre.yml

@@ -42,6 +42,10 @@
     - name: Install kolla
       command: "{{ virtualenv_path }}/bin/python -m pip install {{ zuul.project.src_dir }}"
 
+    - name: Install docker python library
+      command: "{{ virtualenv_path }}/bin/python -m pip install docker"
+      when: container_engine == "docker"
+
     - name: Install podman python library
       command: "{{ virtualenv_path }}/bin/python -m pip install podman"
       when: container_engine == "podman"