Unify the setting place of path where event log is saved.

[SawamiWataru]

Current specifications.

• When creating log
  • Refer to "eventlog_path" in logback.xml
• When log is acquired
  • Refer to "io.personium.core.event.log.current.dir" in personium-unit-config.properties

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eventログの書き込みと読み込みでそれぞれ異なる設定箇所のPathを参照している。
今はデフォルトで同一の設定になっているので問題ないが、ユーザがどちらかを修正すると正常に動作しなくなる。
修正：https://github.com/KourokiTakuto/personium-core/commit/1b2aa0735b05da3fbc7243f00f1d860afe1821c7 でcoreとしての修正は完了しているが、logback.xmlの修正によりansibleにも影響が出る。同時にリリースが必要。

[SawamiWataru]

It is difficult to fix where you are reading logback.xml.
I think that the following policy is good.

• Remove setting from personium-unit-config.properties
• Read log setting from logback.xml

The related sources are as follows.

• io.personium.core.event.EventUtils.getEventLogDir()
• io.personium.core.rule.action.LogAction

[KourokiTakuto]

The logback.xml setting value variable has been modified to refer to personium-unit-config.properties.
It is necessary to modify "Ansible" logback.xml.
Correct it also when modifying large "Ansible".

[yoh1496]

How about making eventlog_path contain /personium_nfs/personium-core/eventlog/ and pass entire event log path which is loaded from personium-unit-config.properties ?

https://github.com/personium/personium-core/blob/v1.8.1/src/main/resources/logback.xml#L62

before

<file>/personium_nfs/personium-core/eventlog/${eventlog_path}/current/default.log</file>

after

<file>${eventlog_path}/current/default.log</file>

https://github.com/personium/personium-core/blob/v1.8.1/src/main/java/io/personium/core/rule/action/LogAction.java#L80