Kolla-Ansible安装OpenStack问题

本次安装操作系统为Debian10

官方文档：https://docs.openstack.org/kolla-ansible/latest/user/quickstart.html

1. Precheck failed

执行precheck报错：

(pythonvenv) root@kolla-ansible:~# kolla-ansible -i ./multinode prechecks

····················

TASK [prechecks : Checking docker SDK version] ************************************************************************************************************************************
skipping: [localhost]
fatal: [control1]: FAILED! => {"changed": false, "cmd": ["/usr/bin/python", "-c", "import docker; print(docker.__version__)"], "delta": "0:00:00.010285", "end": "2021-02-28 09:26:09.455813", "failed_when_result": true, "msg": "non-zero return code", "rc": 1, "start": "2021-02-28 09:26:09.445528", "stderr": "Traceback (most recent call last):\n  File \"<string>\", line 1, in <module>\nImportError: No module named docker", "stderr_lines": ["Traceback (most recent call last):", "  File \"<string>\", line 1, in <module>", "ImportError: No module named docker"], "stdout": "", "stdout_lines": []}
fatal: [control3]: FAILED! => {"changed": false, "cmd": ["/usr/bin/python", "-c", "import docker; print(docker.__version__)"], "delta": "0:00:00.010795", "end": "2021-02-28 09:26:09.514719", "failed_when_result": true, "msg": "non-zero return code", "rc": 1, "start": "2021-02-28 09:26:09.503924", "stderr": "Traceback (most recent call last):\n  File \"<string>\", line 1, in <module>\nImportError: No module named docker", "stderr_lines": ["Traceback (most recent call last):", "  File \"<string>\", line 1, in <module>", "ImportError: No module named docker"], "stdout": "", "stdout_lines": []}
fatal: [compute1]: FAILED! => {"changed": false, "cmd": ["/usr/bin/python", "-c", "import docker; print(docker.__version__)"], "delta": "0:00:00.010590", "end": "2021-02-28 09:26:09.536965", "failed_when_result": true, "msg": "non-zero return code", "rc": 1, "start": "2021-02-28 09:26:09.526375", "stderr": "Traceback (most recent call last):\n  File \"<string>\", line 1, in <module>\nImportError: No module named docker", "stderr_lines": ["Traceback (most recent call last):", "  File \"<string>\", line 1, in <module>", "ImportError: No module named docker"], "stdout": "", "stdout_lines": []}
fatal: [control2]: FAILED! => {"changed": false, "cmd": ["/usr/bin/python", "-c", "import docker; print(docker.__version__)"], "delta": "0:00:00.017374", "end": "2021-02-28 09:26:09.548808", "failed_when_result": true, "msg": "non-zero return code", "rc": 1, "start": "2021-02-28 09:26:09.531434", "stderr": "Traceback (most recent call last):\n  File \"<string>\", line 1, in <module>\nImportError: No module named docker", "stderr_lines": ["Traceback (most recent call last):", "  File \"<string>\", line 1, in <module>", "ImportError: No module named docker"], "stdout": "", "stdout_lines": []}
fatal: [compute2]: FAILED! => {"changed": false, "cmd": ["/usr/bin/python", "-c", "import docker; print(docker.__version__)"], "delta": "0:00:00.015856", "end": "2021-02-28 09:26:09.607353", "failed_when_result": true, "msg": "non-zero return code", "rc": 1, "start": "2021-02-28 09:26:09.591497", "stderr": "Traceback (most recent call last):\n  File \"<string>\", line 1, in <module>\nImportError: No module named docker", "stderr_lines": ["Traceback (most recent call last):", "  File \"<string>\", line 1, in <module>", "ImportError: No module named docker"], "stdout": "", "stdout_lines": []}

解决办法：

将python默认版本为python2，改为python3，即可解决，没有安装python3需要手动安装一下

root@compute1:~# ln -svf /usr/bin/python3 /usr/bin/python
'/usr/bin/python' -> '/usr/bin/python3'
root@compute1:~#

使用pip安装docker，在每个节点上用pip手动安装docker或使用ansible批量安装

root@compute2:~# pip install -U docker

OR

(pythonvenv) root@kolla-ansible:~# ansible -i ./multinode all -m shell -a "pip install docker"