我正在尝试使用 graylog 收集 nginx 错误和访问日志,我认为一切都配置正确,但 Graylog 没有从 NGINX 收到任何信息(Graylog 和 NGINX 位于 docker 容器中,并且都在同一个网络中)
我使用 nginx/1.13.5 和 Graylog 2.4.0,并且我使用此内容包在graylog上
这是我的 nginx.conf
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
log_format graylog2_json escape=json '{ "timestamp": "$time_iso8601", '
'"remote_addr": "$remote_addr", '
'"remote_user": "$remote_user", '
'"body_bytes_sent": $body_bytes_sent, '
'"request_time": $request_time, '
'"status": $status, '
'"request": "$request", '
'"request_method": "$request_method", '
'"host": "$host",'
'"upstream_cache_status": "$upstream_cache_status",'
'"upstream_addr": "$upstream_addr",'
'"http_x_forwarded_for": "$http_x_forwarded_for",'
'"http_referrer": "$http_referer", '
'"http_user_agent": "$http_user_agent" }';
access_log syslog:server=graylog:12301,facility=local0,tag=nginx,severity=info graylog2_json;
error_log syslog:server=graylog:12302,facility=local0,tag=nginx,severity=error warn;
#error_log stderr;
sendfile on;
#tcp_nopush on;
keepalive_timeout 65;
#gzip on;
include /etc/nginx/conf.d/*.conf;
}
daemon off;
如果我尝试使用 nc,我的 graylog 会收到消息
echo -n "test message" | nc -u -w1 graylog 12301
谢谢!
答案1
我建议你收集一些调试信息:正如你所说你的网络工作
- Graylog 主机上的 TCP 转储数据包:
如果 Nginx 与 Graylog 位于同一主机上:sudo tcpdump udp -n -vv port 12301 -i lo -X
如果 Nginx 与 Graylog 位于不同的主机上:sudo tcpdump udp -n -vv port 12301 -X
如果网络层工作正常,并且您可以看到如图所示的数据包,请转到 Graylog 输入并检查您拥有哪种输入
[a] 必须原始/纯文本 UDP(如果你有 GELF UDPGraylog 将过滤您的消息作为Nginx 以 Syslog 格式而不是 Json 格式发送日志
[b] 你将拥有网络 IO 不为 0
[C]港口(您的情况是 12301)和知识产权需要与 Nginx 配置相同
- 如果你拥有所有这些,你将在 Graylog 中找到来自 Nginx 的 RAW 消息:
<190>Jul.26.16:12:07.graylog.nginx:.{."timestamp":."2018-07-26T16:12:07+03:00",,"remote_addr":."xx.xxxxx",,"body_bytes_sent":.4277,,"request_time":.0.005,,"response_status":.200,,"request":."POST./api/cluster/metrics/multiple.HTTP/1.1",,"request_method":."POST",,"host":."xx.xxxxx",,"upstream_cache_status":."-",,"upstream_addr":."xx.xxxxx",,"http_x_forwarded_for":."xx.xxxxx",,"http_referrer":."https://xx.xxxxx/system/inputs",."http_user_agent":."xx.xxxxxxx.xxxxxxx.xxxxxxx.xxxxx",."http_version":."HTTP/1.1",."nginx_access":.true.}
- 使用 Graylog 输入提取器从伪 Syslog RAW 消息中提取 JSON:
提取器示例:
{
"extractors": [
{
"title": "Extract from Pseudo-Syslog a JSON",
"extractor_type": "regex_replace",
"converters": [],
"order": 0,
"cursor_strategy": "cut",
"source_field": "message",
"target_field": "message",
"extractor_config": {
"replacement": "$1",
"regex": "^.*?(\\{.*?\\})$"
},
"condition_type": "none",
"condition_value": ""
}
],
"version": "2.4.6"
}
当您使用“内容包”时,如果您进行导入导出,则需要在来自“内容包”(顺序:0)的所有其他规则之前添加该规则
添加规则后,您将获得来自 Nginx 的清晰 JSON 日志,所有其他工作将执行“内容包”
- 检查你的 Nginx 配置
ngnix.conf示例:
log_format graylog_json '{ "timestamp": "$time_iso8601", "remote_addr": "$remote_addr", "body_bytes_sent": $body_bytes_sent, "request_time": $request_time, "response_status": $status, "request": "$request", "request_method ": "$request_method", "host": "$host", "upstream_cache_status": "$upstream_cache_status", "upstream_addr": "$upstream_addr", "http_x_forwarded_for": "$http_x_forwarded_for", "http_referrer": "$http_referer", "http_user_agent": "$h ttp_user_agent", "http_version": "$server_protocol", "nginx_access": true }';
access_log syslog:server=graylog:5555 graylog_json;
希望您能从这些步骤中受益