docker (异常处理) 时区

时区报错 Can not find any timezone configuration

• docker 中的时区默认使用格林尼治时间，也就是比北京时间晚了八小时
• 在docker中使用date 命令，可以查看时间

[root@10-7-47-66 collect_data]# docker run -it rao/collect_data:v1 date                            
Mon Mar  9 02:39:31 UTC 2020
[root@10-7-47-66 collect_data]# date
Mon Mar  9 10:39:32 CST 2020

• 解决方案，将linux主机的时间映射到容器中

[root@10-7-47-66 collect_data]# docker run -it -v "/etc/localtime:/etc/localtime" rao/collect_data:v1 date
Mon Mar  9 10:42:23 CST 2020

• 可以解决以下报错

Traceback (most recent call last):
  File "test.py", line 16, in <module>
    scheduler = BackgroundScheduler(daemon=True)
  File "/usr/local/lib/python3.6/site-packages/apscheduler/schedulers/base.py", line 87, in __init__
    self.configure(gconfig, **options)
  File "/usr/local/lib/python3.6/site-packages/apscheduler/schedulers/base.py", line 126, in configure
    self._configure(config)
  File "/usr/local/lib/python3.6/site-packages/apscheduler/schedulers/background.py", line 29, in _configure
    super(BackgroundScheduler, self)._configure(config)
  File "/usr/local/lib/python3.6/site-packages/apscheduler/schedulers/base.py", line 697, in _configure
    self.timezone = astimezone(config.pop('timezone', None)) or get_localzone()
  File "/usr/local/lib/python3.6/site-packages/tzlocal/unix.py", line 131, in get_localzone
    _cache_tz = _get_localzone()
  File "/usr/local/lib/python3.6/site-packages/tzlocal/unix.py", line 125, in _get_localzone
    raise pytz.UnknownTimeZoneError('Can not find any timezone configuration')
pytz.exceptions.UnknownTimeZoneError: 'Can not find any timezone configuration'

docker 中 apscheduler 报错

Traceback (most recent call last):
  File "test.py", line 17, in <module>
    scheduler.add_job(sensor, 'interval', seconds=2)
  File "/usr/local/lib/python3.6/site-packages/apscheduler/schedulers/base.py", line 420, in add_job
    'trigger': self._create_trigger(trigger, trigger_args),
  File "/usr/local/lib/python3.6/site-packages/apscheduler/schedulers/base.py", line 921, in _create_trigger
    return self._create_plugin_instance('trigger', trigger, trigger_args)
  File "/usr/local/lib/python3.6/site-packages/apscheduler/schedulers/base.py", line 906, in _create_plugin_instance
    return plugin_cls(**constructor_kwargs)
  File "/usr/local/lib/python3.6/site-packages/apscheduler/triggers/interval.py", line 38, in __init__
    self.timezone = astimezone(timezone)
  File "/usr/local/lib/python3.6/site-packages/apscheduler/util.py", line 87, in astimezone
    'Unable to determine the name of the local timezone -- you must explicitly '
ValueError: Unable to determine the name of the local timezone -- you must explicitly specify the name of the local timezone. Please refrain from using timezones like EST to prevent problems with daylight saving time. Instead, use a locale based timezone name (such as Europe/Helsinki).

• 解决方案

echo "Asia/Shanghai" > /etc/timezone