Allow custom log format to be set through environmental variables

[yyrliu]

I'm working on using this project to monitor traefik with multiple subdomains (virtual host field in goaccess), which is only recorded when logging access log in json. Therefore it will be great if I can customize the log-format, including time-format and date-format.

I simply made some small changes to resources/scripts/logs/traefik.sh to allow user to override the formats with -e TIME_FORMAT, -e DATE_FORMAT and -e LOG_FORMAT. However someone may come up with some more elegant solution, or just simply create a new -e LOG_TYPE=TRAEFIK

@@ -32,9 +32,9 @@ function traefik_goaccess_config(){
     echo "# ${goan_version}" >> ${goan_config}
     echo "# GOAN_PROXY_CONFIG" >> ${goan_config}
     echo "######################################" >> ${goan_config}
-    echo "time-format %T" >> ${goan_config}
-    echo "date-format %d/%b/%Y" >> ${goan_config}
-    echo "log-format %h %^[%d:%t %^] \"%r\" %s %b \"%R\" \"%u\" %Lm" >> ${goan_config}
+    echo "time-format ${TIME_FORMAT:-'%T'}" >> ${goan_config}
+    echo "date-format ${DATE_FORMAT:-'%d/%b/%Y'}" >> ${goan_config}
+    echo "log-format ${LOG_FORMAT:-'%h %^[%d:%t %^] \"%r\" %s %b \"%R\" \"%u\" %Lm'}" >> ${goan_config}
     echo "port 7890" >> ${goan_config}    
     echo "real-time-html true" >> ${goan_config}
     echo "output ${nginx_html}" >> ${goan_config}

Just in case if anyone is interested, my configs are the followings

# goaccess-for-nginxproxymanager envs

TIME_FORMAT=%H:%M:%S
DATE_FORMAT=%Y-%m-%d
LOG_FORMAT='{"ClientHost": "%h", "ClientUsername": "%e", "DownstreamContentSize": "%b", "Duration": "%n", "DownstreamStatus": "%s", "RequestAddr": "%v", "RequestMethod": "%m", "RequestPath": "%U", "RequestProtocol": "%H", "StartUTC": "%dT%t.%^", "request_User-Agent": "%u"}'

# traefik access log config

--accesslog=true
--accesslog.filepath=/log/access.log
--accesslog.bufferingsize=100
--accesslog.format=json
--accesslog.fields.defaultmode=keep
--accesslog.fields.headers.defaultmode=drop
--accesslog.fields.headers.names.User-Agent=keep
--accesslog.fields.headers.names.Content-Type=keep

[xavier-hernandez]

@stultusphobia this was incorporated into the new version.