通过可解析获取Docker的IP地址 [英] Get IP address of Docker with Ansible
问题描述
我按照playbook命令:
I have follow playbook command:
- name: Docker | Consul | Get ip
shell: "docker inspect --format {% raw %}'{{ .NetworkSettings.IPAddress }}' {% endraw %} consul"
register: consul_ip
运行ansible后返回跟随错误:
After run ansible return follow error:
致命:[192.168.122.41]:FAILED! => {failed:true,msg:{u'cmd':
u\docker inspect --format'{{.NetworkSettings.IPAddress}}'
consul\ ,你的'u'2017-01-18 16:52:18.786469',
u'stdout':u'172.17.0.2',u'changed':True,u'start':u' 2017-01-18
16:52:18.773819',u'delta':u'0:00:00.012650',u'stderr':u'',u'rc':
0, 'stdout_lines':[u'172.17.0.2'],u'warnings':[]}:模板错误
同时模板字符串:意外的'。'。String:docker inspect
--format'{ {.NetworkSettings.IPAddress}}'consul}
fatal: [192.168.122.41]: FAILED! => {"failed": true, "msg": "{u'cmd': u\"docker inspect --format '{{ .NetworkSettings.IPAddress }}' consul\", u'end': u'2017-01-18 16:52:18.786469', u'stdout': u'172.17.0.2', u'changed': True, u'start': u'2017-01-18 16:52:18.773819', u'delta': u'0:00:00.012650', u'stderr': u'', u'rc': 0, 'stdout_lines': [u'172.17.0.2'], u'warnings': []}: template error while templating string: unexpected '.'. String: docker inspect --format '{{ .NetworkSettings.IPAddress }}' consul"}
可解版本:
ansible 2.2.1.0
config file = /etc/ansible/ansible.cfg
configured module search path = Default w/o overrides
如何获取容器的IP地址?
How right way to get IP address of container?
推荐答案
使用bash连接能力:
Trick with bash concatenation ability:
shell: "docker inspect --format '{''{ .NetworkSettings.IPAddress }''}' consul"
这将粘在一起 {
+ {.NetworkSettings.IPAddress}
+ }
变成bash中的单个字符串。
This will stick together {
+{ .NetworkSettings.IPAddress }
+}
into single string in bash.
更新:此行为的根本原因是此处介绍。
Update: the root cause of this behaviour is described here.
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