go build -o log2metrics main.go

http_addr: 0.0.0.0:8087
log_level: INFO

log_strategy:
  - metric_name: log_var_log_messages_level_total
    metric_help: /var/log/messages中的日志 total
    file_path: /var/log/messages
    pattern:  ".*"
    func: cnt
    tags:
      level: ".*level=(.*?) .*"

  - metric_name: ngx_acc_code
    metric_help: nginx access日志中的code 数字最大值
    file_path: /var/log/nginx/access.log
    pattern:  '.*\[code=(.*?)\].*'
    func: max

  - metric_name: ngx_acc_code_sum
    metric_help: nginx access日志中的code 数字最大值
    file_path: /var/log/nginx/access.log
    pattern:  '.*\[code=(.*?)\].*'
    func: sum

log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '[code=$status] $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

./log2metrics

echo "::1 - - [04/Sep/2021:12:21:10 +0800] "GET / HTTP/1.1" [code=504] 4833 "-" "curl/7.29.0" "-"" >> /var/log/nginx/access.log

- job_name: 'log2metrics'
    honor_timestamps: true
    scrape_interval: 15s
    metrics_path: /metrics
    scheme: http
    static_configs:
      - targets:
          - 192.168.3.200:8087