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+# Netdata log2journal Configuration
+# The following parses nginx log files using the combined format.
+
+# The PCRE2 pattern to match log entries and give names to the fields.
+# The journal will have these names, so follow their rules. You can
+# initiate an extended PCRE2 pattern by starting the pattern with (?x)
+pattern: |
+ (?x) # Enable PCRE2 extended mode
+ ^
+ (?<NGINX_REMOTE_ADDR>[^ ]+) \s - \s # NGINX_REMOTE_ADDR
+ (?<NGINX_REMOTE_USER>[^ ]+) \s # NGINX_REMOTE_USER
+ \[
+ (?<NGINX_TIME_LOCAL>[^\]]+) # NGINX_TIME_LOCAL
+ \]
+ \s+ "
+ (?<NGINX_REQUEST>
+ (?<NGINX_REQUEST_METHOD>[A-Z]+) \s+ # NGINX_METHOD
+ (?<NGINX_REQUEST_URI>[^ ]+) \s+
+ (?<NGINX_SERVER_PROTOCOL>[^"]+)
+ )
+ " \s+
+ (?<NGINX_STATUS>\d+) \s+ # NGINX_STATUS
+ (?<NGINX_BODY_BYTES_SENT>\d+) \s+ # NGINX_BODY_BYTES_SENT
+ "(?<NGINX_HTTP_REFERER>[^"]*)" \s+ # NGINX_HTTP_REFERER
+ "(?<NGINX_HTTP_USER_AGENT>[^"]*)" # NGINX_HTTP_USER_AGENT
+
+# When log2journal can detect the filename of each log entry (tail gives it
+# only when it tails multiple files), this key will be used to send the
+# filename to the journals.
+filename:
+ key: NGINX_LOG_FILENAME
+
+rename:
+ - new_key: MESSAGE
+ old_key: NGINX_REQUEST
+
+# Inject constant fields into the journal logs.
+inject:
+ - key: SYSLOG_IDENTIFIER
+ value: nginx-log
+
+ # inject PRIORITY is a duplicate of NGINX_STATUS
+ - key: PRIORITY
+ value: '${NGINX_STATUS}'
+
+ # Inject NGINX_STATUS_FAMILY is a duplicate of NGINX_STATUS
+ - key: NGINX_STATUS_FAMILY
+ value: '${NGINX_STATUS}'
+
+# Rewrite the value of fields (including the duplicated ones).
+# The search pattern can have named groups, and the replace pattern can use
+# them as ${name}.
+rewrite:
+ # PRIORITY is a duplicate of NGINX_STATUS
+ # Valid PRIORITIES: 0=emerg, 1=alert, 2=crit, 3=error, 4=warn, 5=notice, 6=info, 7=debug
+ - key: PRIORITY
+ match: '^[123]'
+ value: 6
+
+ - key: PRIORITY
+ match: '^4'
+ value: 5
+
+ - key: PRIORITY
+ match: '^5'
+ value: 3
+
+ - key: PRIORITY
+ match: '.*'
+ value: 4
+
+ # NGINX_STATUS_FAMILY is a duplicate of NGINX_STATUS
+ - key: NGINX_STATUS_FAMILY
+ match: '^(?<first_digit>[1-5])'
+ value: '${first_digit}xx'
+
+ - key: NGINX_STATUS_FAMILY
+ match: '.*'
+ value: 'UNKNOWN'
+
+# Control what to do when input logs do not match the main PCRE2 pattern.
+unmatched:
+ # The journal key to log the PCRE2 error message to.
+ # Set this to MESSAGE, so you to see the error in the log.
+ key: MESSAGE
+
+ # Inject static fields to the unmatched entries.
+ # Set PRIORITY=1 (alert) to help you spot unmatched entries in the logs.
+ inject:
+ - key: PRIORITY
+ value: 1