Docker、Tomee、日志记录、标准输出、AWS

Question

首先让我说我不是 Tomee/TomCat 专家。

我有一个应用程序 (.war) 在 AWS 上的 ECS/Fargate 上基于 Tomee 的 Docker 容器中运行。我正在尝试让 Tomee 将所有日志发送到 STDOUT，以便将来自应用程序的日志发送到 AWS 中的 CloudWatch。我已经尝试了in this question 的建议/答案，但即使在本地测试时我仍然看不到应用程序日志：

docker logs -f myapp

这是添加了 java.util.logging.ConsoleHandler的logging.properties文件：

handlers = 1catalina.org.apache.juli.AsyncFileHandler, 2localhost.org.apache.juli.AsyncFileHandler, 3manager.org.apache.juli.AsyncFileHandler, 4host-manager.org.apache.juli.AsyncFileHandler, org.apache.tomee.jul.formatter.AsyncConsoleHandler
.handlers = 1catalina.org.apache.juli.AsyncFileHandler, org.apache.tomee.jul.formatter.AsyncConsoleHandler, java.util.logging.ConsoleHandler

############################################################
# Handler specific properties.
# Describes specific configuration info for Handlers.
############################################################

1catalina.org.apache.juli.AsyncFileHandler.level = FINE
1catalina.org.apache.juli.AsyncFileHandler.directory = ${catalina.base}/logs
1catalina.org.apache.juli.AsyncFileHandler.prefix = catalina.
1catalina.org.apache.juli.AsyncFileHandler.maxDays = 90
1catalina.org.apache.juli.AsyncFileHandler.encoding = UTF-8

2localhost.org.apache.juli.AsyncFileHandler.level = FINE
2localhost.org.apache.juli.AsyncFileHandler.directory = ${catalina.base}/logs
2localhost.org.apache.juli.AsyncFileHandler.prefix = localhost.
2localhost.org.apache.juli.AsyncFileHandler.maxDays = 90
2localhost.org.apache.juli.AsyncFileHandler.encoding = UTF-8

3manager.org.apache.juli.AsyncFileHandler.level = FINE
3manager.org.apache.juli.AsyncFileHandler.directory = ${catalina.base}/logs
3manager.org.apache.juli.AsyncFileHandler.prefix = manager.
3manager.org.apache.juli.AsyncFileHandler.maxDays = 90
3manager.org.apache.juli.AsyncFileHandler.encoding = UTF-8

4host-manager.org.apache.juli.AsyncFileHandler.level = FINE
4host-manager.org.apache.juli.AsyncFileHandler.directory = ${catalina.base}/logs
4host-manager.org.apache.juli.AsyncFileHandler.prefix = host-manager.
4host-manager.org.apache.juli.AsyncFileHandler.maxDays = 90
4host-manager.org.apache.juli.AsyncFileHandler.encoding = UTF-8

org.apache.tomee.jul.formatter.AsyncConsoleHandler.level = FINE
org.apache.tomee.jul.formatter.AsyncConsoleHandler.formatter = org.apache.juli.OneLineFormatter
org.apache.tomee.jul.formatter.AsyncConsoleHandler.encoding = UTF-8


############################################################
# Facility specific properties.
# Provides extra control for each logger.
############################################################

org.apache.catalina.core.ContainerBase.[Catalina].[localhost].level = INFO
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].handlers = 2localhost.org.apache.juli.AsyncFileHandler, java.util.logging.ConsoleHandler

org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/manager].level = INFO
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/manager].handlers = 3manager.org.apache.juli.AsyncFileHandler, java.util.logging.ConsoleHandler

org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/host-manager].level = INFO
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/host-manager].handlers = 4host-manager.org.apache.juli.AsyncFileHandler, java.util.logging.ConsoleHandler

我已按照/usr/local/tomee/bin/ 中的建议添加了一个环境变量：

#!/bin/bash
CATALINA_OUT=/dev/stdout

发送到STDOUT 的所有日志都会自动发送到 AWS Cloudwatch（我可以从那里看到 Catalina 日志中的信息），但访问/错误日志不是。

我在这里错过了什么吗？或者有没有更简单的方法来确保在 CloudWatch 中看到应用程序的日志？

Answer 1

经过大量研究，我发现在 server.xml 中使用以下语句将使用AccessLogValve 将日志发送到 STDOUT：

<Valve className="org.apache.catalina.valves.AccessLogValve" directory="/dev/stdout"
   prefix="" suffix="" rotatable="false"
   pattern="%h %l %u %t &quot;%r&quot; %s %b" />

或

<Valve className="[...].AccessLogValve" directory="/dev"
    prefix="stdout" suffix="" fileDateFormat=""
    pattern="%h %l %u %t &quot;%r&quot; %s %b"
/>

取决于 Tomcat/Tomee 的版本，这两个都可以正常工作，无需将实际日志软链接到 /dev/stdout