Ansible overrides /etc/hosts

[tochi-y]

Before executing ansible

# hostname
example.com

# cat /etc/hosts
...
127.0.0.1   localhost localhost.localdomain test-ap
127.0.0.1 unitadmin.example.com
127.0.0.1 example.com

After executing ansible

# hostname
test-ap

# cat /etc/hosts
...
127.0.0.1   localhost localhost.localdomain test-ap
127.0.0.1 unitadmin.example.com

Then, UNIT ADMIN Cell creation failed.

OS：CentOS 7.6
Memory : 8GB

TASK [Execute /tmp/personium-init-svcmgr.sh] *********************************************************************
fatal: [192.168.56.102]: FAILED! => {"changed": true, "cmd": "/bin/sh /tmp/personium-init-svcmgr.sh > /tmp/personium-init-svcmgr.log", "delta": "0:00:00.815381", "end": "2019-07-21 13:37:12.603507", "failed_when_result": true, "msg": "non-zero return code", "rc": 2, "start": "2019-07-21 13:37:11.788126", "stderr": "", "stderr_lines": [], "stdout": "", "stdout_lines": []}

PLAY RECAP *******************************************************************************************************
192.168.56.102             : ok=268  changed=43   unreachable=0    failed=1    skipped=2    rescued=0    ignored=0

2019年  7月 21日 日曜日 13:37:12 JST

# cat /tmp/personium-init-svcmgr.log
######  Create UNIT ADMIN Cell  ######
HTTP/1.1 404
Date: Sun, 21 Jul 2019 04:37:12 GMT
Content-Type: application/json
Content-Length: 74
Connection: keep-alive
X-Personium-Version: 1.7.15
Server: Personium

{"code":"PR404-DV-0003","message":{"lang":"en","value":"Cell not found."}}
status:404
-- Cell check
HTTP/1.1 404
Date: Sun, 21 Jul 2019 04:37:12 GMT
Content-Type: application/json
Content-Length: 74
Connection: keep-alive
X-Personium-Version: 1.7.15
Server: Personium

{"code":"PR404-DV-0003","message":{"lang":"en","value":"Cell not found."}}
status:404
UNIT ADMIN Cell createdfaild.

See:
https://github.com/personium/ansible/blob/2fb4ca4ad446c3fb2b98adbcccfc2bf7bf6ef1f3/1-server_unit/tasks/common/init_hostname.yml