如何在Docker容器中使用Apache，并且什么都不写入磁盘（所有日志到STDIO / STDERR）？ [英] How does one use Apache in a Docker Container and write nothing to disk (all logs to STDIO / STDERR)?

问题描述

我在Docker容器中运行Apache2，并且不想对磁盘写入任何内容，将日志写入stdout和stderr。我已经看到了几种不同的方法（Supervisord和stdout / stderr，Apache访问stdout），但这些似乎是黑客。没有办法默认这样做？

要清楚，我不想拖尾日志，因为这将导致写入磁盘的东西容器。

官方版本检入Docker Hub（ https://hub.docker.com/_/httpd/ ）仍然写入磁盘。

此外，我需要什么在尝试滚动日志时，要阻止Apache发生故障吗？

另一件事 - 理想情况下，我真的很想这样做，而不需要另外一个加载项。 nginx可以这样做。

解决方案

根据apache邮件列表，你可以直接写入/ dev / stdio Unix喜欢系统），因为这只是一个常规的文件句柄。简单！粘贴...

最有效的答案取决于您的操作系统。如果您在UNIX系统上提供
，该系统提供/ dev / stdout和/ dev / stderr（或
或/ dev / fd / 1和/ dev / fd / 2），则使用这些文件名。如果
不是一个选项，使用管道输出功能。例如，从我的
配置：

CustomLog| / usr / sbin / rotatelogs -c -f -l -L
/ private / var / log / apache2 / test-access.log
/private/var/log/apache2/test-access.log.%Y-%m-%d 86400
krader_custom ErrorLog| / usr / sbin / rotatelogs -c -f -l -L
/private/var/log/apache2/test-error.log
/private/var/log/apache2/test-error.log.% Y-％m-％d 86400

显然，您将要替换另一个程序
/ usr / sbin / rotatelogs在上面的例子中写
你想要的数据。

https：//mail-archives.apache。 org / mod_mbox/httpd-users/201508.mbox/%3CCABx2=D-wdd8FYLkHMqiNOKmOaNYb-tAOB-AsSEf2p=[e-mail]%3E

I'm running Apache2 in a docker container and want to write nothing to the disk, writing logs to stdout and stderr. I've seen a few different ways to do this (Supervisord and stdout/stderr, Apache access log to stdout) but these seem like hacks. Is there no way to do this by default?

To be clear, I do not want to tail the log, since that will result in things being written to the disk in the container.

The "official" version checked into Docker Hub (https://hub.docker.com/_/httpd/) still write to disk.

Also, what do I need to do to stop Apache from failing when it tries to roll the logs?

One other thing - ideally, I'd really like to do this without another add-on. nginx can do this trivially.

解决方案

According to the apache mailing list, you can just directly write to /dev/stdio (on Unix like systems) as that's just a regular ol' file handle. Easy! Pasting...

The most efficient answer depends on your operating system. If you're on a UNIX like system which provides /dev/stdout and /dev/stderr (or perhaps /dev/fd/1 and /dev/fd/2) then use those file names. If that isn't an option use the piped output feature. For example, from my config:

CustomLog "|/usr/sbin/rotatelogs -c -f -l -L /private/var/log/apache2/test-access.log /private/var/log/apache2/test-access.log.%Y-%m-%d 86400 " krader_custom ErrorLog "|/usr/sbin/rotatelogs -c -f -l -L /private/var/log/apache2/test-error.log /private/var/log/apache2/test-error.log.%Y-%m-%d 86400"

Obviously you'll want to substitute another program for /usr/sbin/rotatelogs in the example above that writes the data where you want it to go.

https://mail-archives.apache.org/mod_mbox/httpd-users/201508.mbox/%3CCABx2=D-wdd8FYLkHMqiNOKmOaNYb-tAOB-AsSEf2p=[e-mail]%3E

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