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syslog-ng 无法识别“python”关键字

tag-icon • tag-icon python syslog-ng
syslog-ng 无法识别“python”关键字

我正在尝试使用 Syslog-ng，以便它将消息转发到 Python 目标。但是，我不断收到“解析目标时出错，未找到目标插件 Python...”消息。

我正在严格遵循本教程。https://syslog-ng.gitbooks.io/getting-started/content/chapters/chapter_5/section_1.html

据我所知，关键字“java”和“python”需要 Syslog-ng 3.7+。我已将其从 3.5.6 升级到 3.7+。我还将提供的配置文件 @version: 3.7 更改为 @version: 3.8，这是我对示例所做的唯一更改。

为什么 Syslog-ng 无法识别我的配置文件中的关键字“python”？

这是提供的脚本。

@version: 3.7
@include "scl.conf"

source s_local {
    system();
    internal();
};

destination python_to_file {
            python(
                class("betterpythonexample.TextDestination")
                on-error("fallback-to-string")
                value-pairs(scope(everything))
                );
                };

log {
    source(s_local);
    destination(python_to_file);
};

这是示例中的python代码。

    class LogDestination(object):

    def open(self):
        """Open a connection to the target service"""
        return True

    def close(self):
        """Close the connection to the target service"""
        pass

    def is_opened(self):
        """Check if the connection to the target is able to receive messages"""
        return True

    def init(self):
        """This method is called at initialization time"""
        return True

    def deinit(self):
        """This method is called at deinitialization time"""
        pass

    def send(self, msg):
        """Send a message to the target service

        It should return True to indicate success, False will suspend the
        destination for a period specified by the time-reopen() option."""
        pass


class TextDestination(LogDestination):
    def __init__(self):
        self.outfile = None

    def init(self):
        self.outfile = open('/tmp/example.txt', 'a')
        self.outfile.write("initialized\n")
        self.outfile.flush()
        return True

    def open(self):
        self.outfile.write("opened\n")
        self.outfile.flush()
        return True

    def close(self):
        self.outfile.write("closed\n")
        self.outfile.flush()
        return True

    def deinit(self):
        self.outfile.write("deinit\n")
        self.outfile.flush()
        self.outfile.close();
        return True

    def send(self, msg):
        self.outfile.write("Name Value Pairs are \n")

        for key,v in msg.items():
            self.outfile.write(str(key)+" "+str(v)+"\n");
        self.outfile.flush()
        return True

答案1

检查一下，如果你启用了 Python 支持syslog-ng -V，mod-python应该列在可用的模块中：

linux-utjy:~ # syslog-ng -V
syslog-ng 3.7.3
Installer-Version: 3.7.3
Revision: 
Available-Modules: afamqp,affile,afmongodb,afprog,afsocket,afstomp,afuser,basicfuncs,confgen,cryptofuncs,csvparser,dbparser,graphite,json-plugin,kvformat,linux-kmsg-format,pseudofile,sdjournal,syslogformat,system-source,mod-python
Enable-Debug: off
Enable-GProf: off
Enable-Memtrace: off
Enable-IPv6: on
Enable-Spoof-Source: on
Enable-TCP-Wrapper: on
Enable-Linux-Caps: off

如果不是，您应该确保您使用 python 支持编译 syslog-ng，或者如果您从包中安装，请安装一个名为syslog-ng-python或类似的包。

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