Postfix monitoring using ELK

uzzaldas · February 13, 2024, 5:56am

I want to monitor Postfix logs using ELK stack. I tried postfix filter and grok pattern as below. But I am getting following errors from logstash.

ELK Version: 8.9.2

Logstash Error:

logstash_1       | [2024-02-13T05:30:38,509][INFO ][logstash.agent           ] Successfully started Logstash API endpoint {:port=>9600, :ssl_enabled=>false}
logstash_1       | [2024-02-13T05:30:43,256][INFO ][org.reflections.Reflections] Reflections took 154 ms to scan 1 urls, producing 132 keys and 464 values
logstash_1       | [2024-02-13T05:30:44,517][INFO ][logstash.javapipeline    ] Pipeline `main` is configured with `pipeline.ecs_compatibility: v8` setting. All plugins in this pipeline will default to `ecs_compatibility => v8` unless explicitly configured otherwise.
logstash_1       | [2024-02-13T05:30:44,587][INFO ][logstash.outputs.elasticsearch][main] New Elasticsearch output {:class=>"LogStash::Outputs::ElasticSearch", :hosts=>["//elasticsearch:9200"]}
logstash_1       | [2024-02-13T05:30:44,696][INFO ][logstash.outputs.elasticsearch][main] Elasticsearch pool URLs updated {:changes=>{:removed=>[], :added=>[http://logstash_internal:xxxxxx@elasticsearch:9200/]}}
logstash_1       | [2024-02-13T05:30:44,809][WARN ][logstash.outputs.elasticsearch][main] Restored connection to ES instance {:url=>"http://logstash_internal:xxxxxx@elasticsearch:9200/"}
logstash_1       | [2024-02-13T05:30:44,817][INFO ][logstash.outputs.elasticsearch][main] Elasticsearch version determined (8.9.2) {:es_version=>8}
logstash_1       | [2024-02-13T05:30:44,817][WARN ][logstash.outputs.elasticsearch][main] Detected a 6.x and above cluster: the `type` event field won't be used to determine the document _type {:es_version=>8}
logstash_1       | [2024-02-13T05:30:44,830][INFO ][logstash.outputs.elasticsearch][main] Data streams auto configuration (`data_stream => auto` or unset) resolved to `true`
logstash_1       | [2024-02-13T05:30:44,834][WARN ][logstash.filters.grok    ][main] ECS v8 support is a preview of the unreleased ECS v8, and uses the v1 patterns. When Version 8 of the Elastic Common Schema becomes available, this plugin will need to be updated
logstash_1       | [2024-02-13T05:30:44,935][ERROR][logstash.javapipeline    ][main] Pipeline error {:pipeline_id=>"main", :exception=>#<Grok::PatternError: pattern %{POSTFIX_SCACHE} not defined>, :backtrace=>["/usr/share/logstash/vendor/bundle/jruby/2.6.0/gems/jls-grok-0.11.5/lib/grok-pure.rb:123:in `block in compile'", "org/jruby/RubyKernel.java:1507:in `loop'", "/usr/share/logstash/vendor/bundle/jruby/2.6.0/gems/jls-grok-0.11.5/lib/grok-pure.rb:93:in `compile'", "/usr/share/logstash/vendor/bundle/jruby/2.6.0/gems/logstash-filter-grok-4.4.3/lib/logstash/filters/grok.rb:282:in `block in register'", "org/jruby/RubyArray.java:1865:in `each'", "/usr/share/logstash/vendor/bundle/jruby/2.6.0/gems/logstash-filter-grok-4.4.3/lib/logstash/filters/grok.rb:276:in `block in register'", "org/jruby/RubyHash.java:1519:in `each'", "/usr/share/logstash/vendor/bundle/jruby/2.6.0/gems/logstash-filter-grok-4.4.3/lib/logstash/filters/grok.rb:271:in `register'", "org/logstash/config/ir/compiler/AbstractFilterDelegatorExt.java:75:in `register'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:237:in `block in register_plugins'", "org/jruby/RubyArray.java:1865:in `each'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:236:in `register_plugins'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:611:in `maybe_setup_out_plugins'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:249:in `start_workers'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:194:in `run'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:146:in `block in start'"], "pipeline.sources"=>["/usr/share/logstash/pipeline/50-filter-postfix.conf", "/usr/share/logstash/pipeline/logstash.conf"], :thread=>"#<Thread:0x8e92595@/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:134 run>"}
logstash_1       | [2024-02-13T05:30:44,937][INFO ][logstash.javapipeline    ][main] Pipeline terminated {"pipeline.id"=>"main"}
logstash_1       | [2024-02-13T05:30:44,942][ERROR][logstash.agent           ] Failed to execute action {:id=>:main, :action_type=>LogStash::ConvergeResult::FailedAction, :message=>"Could not execute action: PipelineAction::Create<main>, action_result: false", :backtrace=>nil}
logstash_1       | [2024-02-13T05:30:44,954][INFO ][logstash.runner          ] Logstash shut down.
logstash_1       | [2024-02-13T05:30:44,962][FATAL][org.logstash.Logstash    ] Logstash stopped processing because of an error: (SystemExit) exit
logstash_1       | org.jruby.exceptions.SystemExit: (SystemExit) exit
logstash_1       |      at org.jruby.RubyKernel.exit(org/jruby/RubyKernel.java:790) ~[jruby.jar:?]
logstash_1       |      at org.jruby.RubyKernel.exit(org/jruby/RubyKernel.java:753) ~[jruby.jar:?]
logstash_1       |      at usr.share.logstash.lib.bootstrap.environment.<main>(/usr/share/logstash/lib/bootstrap/environment.rb:91) ~[?:?]
docker-elk_logstash_1 exited with code 1

I have configured filter as below 50-filter-postfix.conf

filter {
    # grok log lines by program name (listed alpabetically)
    if [program] =~ /^postfix.*\/anvil$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_ANVIL}$" ]
            tag_on_failure => [ "_grok_postfix_anvil_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/bounce$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_BOUNCE}$" ]
            tag_on_failure => [ "_grok_postfix_bounce_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/cleanup$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_CLEANUP}$" ]
            tag_on_failure => [ "_grok_postfix_cleanup_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/dnsblog$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_DNSBLOG}$" ]
            tag_on_failure => [ "_grok_postfix_dnsblog_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/error$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_ERROR}$" ]
            tag_on_failure => [ "_grok_postfix_error_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/local$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_LOCAL}$" ]
            tag_on_failure => [ "_grok_postfix_local_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/master$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_MASTER}$" ]
            tag_on_failure => [ "_grok_postfix_master_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/pickup$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_PICKUP}$" ]
            tag_on_failure => [ "_grok_postfix_pickup_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/pipe$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_PIPE}$" ]
            tag_on_failure => [ "_grok_postfix_pipe_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/postdrop$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_POSTDROP}$" ]
            tag_on_failure => [ "_grok_postfix_postdrop_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/postscreen$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_POSTSCREEN}$" ]
            tag_on_failure => [ "_grok_postfix_postscreen_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/qmgr$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_QMGR}$" ]
            tag_on_failure => [ "_grok_postfix_qmgr_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/scache$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_SCACHE}$" ]
            tag_on_failure => [ "_grok_postfix_scache_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/sendmail$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_SENDMAIL}$" ]
            tag_on_failure => [ "_grok_postfix_sendmail_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/smtp$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_SMTP}$" ]
            tag_on_failure => [ "_grok_postfix_smtp_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/lmtp$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_LMTP}$" ]
            tag_on_failure => [ "_grok_postfix_lmtp_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/smtpd$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_SMTPD}$" ]
            tag_on_failure => [ "_grok_postfix_smtpd_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/postsuper$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_POSTSUPER}$" ]
            tag_on_failure => [ "_grok_postfix_postsuper_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/tlsmgr$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_TLSMGR}$" ]
            tag_on_failure => [ "_grok_postfix_tlsmgr_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/tlsproxy$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_TLSPROXY}$" ]
            tag_on_failure => [ "_grok_postfix_tlsproxy_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/trivial-rewrite$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_TRIVIAL_REWRITE}$" ]
            tag_on_failure => [ "_grok_postfix_trivial_rewrite_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/discard$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_DISCARD}$" ]
            tag_on_failure => [ "_grok_postfix_discard_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/virtual$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_VIRTUAL}$" ]
            tag_on_failure => [ "_grok_postfix_virtual_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/postmap$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_POSTMAP}$" ]
            tag_on_failure => [ "_grok_postfix_postmap_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/postfix-script$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_SCRIPT}$" ]
            tag_on_failure => [ "_grok_postfix_script_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*\/verify$/ {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => [ "message", "^%{POSTFIX_VERIFY}$" ]
            tag_on_failure => [ "_grok_postfix_verify_nomatch" ]
            add_tag        => [ "_grok_postfix_success" ]
        }
    } else if [program] =~ /^postfix.*/ {
        mutate {
            add_tag => [ "_grok_postfix_program_nomatch" ]
        }
    }

    # process key-value data if it exists
    if [postfix_keyvalue_data] {
        kv {
            source       => "postfix_keyvalue_data"
            trim_value   => "<>,"
            prefix       => "postfix_"
            remove_field => [ "postfix_keyvalue_data" ]
        }

        # some post processing of key-value data
        if [postfix_client] {
            grok {
                patterns_dir   => "/etc/logstash/patterns.d"
                match          => ["postfix_client", "^%{POSTFIX_CLIENT}$"]
                tag_on_failure => [ "_grok_kv_postfix_client_nomatch" ]
                remove_field   => [ "postfix_client" ]
            }
        }
        if [postfix_relay] {
            grok {
                patterns_dir   => "/etc/logstash/patterns.d"
                match          => ["postfix_relay", "^%{POSTFIX_RELAY}$"]
                tag_on_failure => [ "_grok_kv_postfix_relay_nomatch" ]
                remove_field   => [ "postfix_relay" ]
            }
        }
        if [postfix_delays] {
            grok {
                patterns_dir   => "/etc/logstash/patterns.d"
                match          => ["postfix_delays", "^%{POSTFIX_DELAYS}$"]
                tag_on_failure => [ "_grok_kv_postfix_delays_nomatch" ]
                remove_field   => [ "postfix_delays" ]
            }
        }
    }

    # process command counter data if it exists
    if [postfix_command_counter_data] {
        grok {
            patterns_dir   => "/etc/logstash/patterns.d"
            match          => ["postfix_command_counter_data", "^%{POSTFIX_COMMAND_COUNTER_DATA}$"]
            tag_on_failure => ["_grok_postfix_command_counter_data_nomatch"]
            remove_field   => ["postfix_command_counter_data"]
        }
    }

    # Do some data type conversions
    mutate {
        convert => [
            # list of integer fields
            "postfix_anvil_cache_size", "integer",
            "postfix_anvil_conn_count", "integer",
            "postfix_anvil_conn_rate", "integer",
            "postfix_client_port", "integer",
            "postfix_cmd_auth", "integer",
            "postfix_cmd_auth_accepted", "integer",
            "postfix_cmd_bdat", "integer",
            "postfix_cmd_bdat_accepted", "integer",
            "postfix_cmd_count", "integer",
            "postfix_cmd_count_accepted", "integer",
            "postfix_cmd_data", "integer",
            "postfix_cmd_data_accepted", "integer",
            "postfix_cmd_ehlo", "integer",
            "postfix_cmd_ehlo_accepted", "integer",
            "postfix_cmd_helo", "integer",
            "postfix_cmd_helo_accepted", "integer",
            "postfix_cmd_mail", "integer",
            "postfix_cmd_mail_accepted", "integer",
            "postfix_cmd_noop", "integer",
            "postfix_cmd_noop_accepted", "integer",
            "postfix_cmd_quit", "integer",
            "postfix_cmd_quit_accepted", "integer",
            "postfix_cmd_rcpt", "integer",
            "postfix_cmd_rcpt_accepted", "integer",
            "postfix_cmd_rset", "integer",
            "postfix_cmd_rset_accepted", "integer",
            "postfix_cmd_starttls", "integer",
            "postfix_cmd_starttls_accepted", "integer",
            "postfix_cmd_unknown", "integer",
            "postfix_cmd_unknown_accepted", "integer",
            "postfix_nrcpt", "integer",
            "postfix_postscreen_cache_dropped", "integer",
            "postfix_postscreen_cache_retained", "integer",
            "postfix_postscreen_dnsbl_rank", "integer",
            "postfix_relay_port", "integer",
            "postfix_server_port", "integer",
            "postfix_size", "integer",
            "postfix_status_code", "integer",
            "postfix_termination_signal", "integer",
            "postfix_tls_server_signature_size", "integer",
            "postfix_verify_cache_dropped", "integer",
            "postfix_verify_cache_retained", "integer",

            # list of float fields
            "postfix_delay", "float",
            "postfix_delay_before_qmgr", "float",
            "postfix_delay_conn_setup", "float",
            "postfix_delay_in_qmgr", "float",
            "postfix_delay_transmission", "float",
            "postfix_postscreen_violation_time", "float"
        ]
    }
}

And Grok pattern:

# helper patterns
GREEDYDATA_NO_COLON [^:]*
GREEDYDATA_NO_SEMICOLON [^;]*
GREEDYDATA_NO_BRACKET [^<>]*
STATUS_WORD [\w-]*
IP_UNKNOWN unknown

# common postfix patterns
POSTFIX_QUEUEID ([0-9A-F]{6,}|[0-9a-zA-Z]{12,}|NOQUEUE)

POSTFIX_CLIENT %{HOSTNAME:postfix_client_hostname}?\[(%{IP_UNKNOWN:postfix_client_ip_unknown}|%{IP:postfix_client_ip})\](:%{INT:postfix_client_port})?
POSTFIX_RELAY %{HOSTNAME:postfix_relay_hostname}?\[(%{IP:postfix_relay_ip}|%{DATA:postfix_relay_service})\](:%{INT:postfix_relay_port})?|%{WORD:postfix_relay_service}
POSTFIX_SMTP_STAGE (CONNECT|HELO|EHLO|STARTTLS|AUTH|MAIL( FROM)?|RCPT( TO)?|(end of )?DATA|BDAT|RSET|UNKNOWN|END-OF-MESSAGE|VRFY|\.)
POSTFIX_ACTION (accept|defer|discard|filter|header-redirect|reject|reject_warning)
POSTFIX_STATUS_CODE \d{3}
POSTFIX_STATUS_CODE_ENHANCED \d\.\d+\.\d+
POSTFIX_DNSBL_MESSAGE Service unavailable; .* \[%{GREEDYDATA:postfix_status_data}\] %{GREEDYDATA:postfix_status_message};
POSTFIX_PS_ACCESS_ACTION (DISCONNECT|DENYLISTED|BLACKLISTED|ALLOWLISTED|WHITELISTED|ALLOWLIST VETO|WHITELIST VETO|PASS NEW|PASS OLD)
POSTFIX_PS_VIOLATION (BARE NEWLINE|COMMAND (TIME|COUNT|LENGTH) LIMIT|COMMAND PIPELINING|DNSBL|HANGUP|NON-SMTP COMMAND|PREGREET)
POSTFIX_TIME_UNIT %{NUMBER}[smhd]
POSTFIX_KEYVALUE_DATA [\w-]+=[^;]*
POSTFIX_KEYVALUE %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data}
POSTFIX_WARNING_LEVEL (warning|fatal|info)
POSTFIX_VERIFY_CLEANUP_TYPE (full|partial)


POSTFIX_TLSCONN %{DATA:postfix_tls_trustlevel} TLS connection established (to %{POSTFIX_RELAY}|from %{POSTFIX_CLIENT}): %{DATA:postfix_tls_version} with cipher %{DATA:postfix_tls_cipher} \(%{DATA:postfix_tls_cipher_size} bits\)( key-exchange %{DATA:postfix_tls_key_exchange} server-signature %{DATA:postfix_tls_server_signature} \(%{DATA:postfix_tls_server_signature_size} bits\) server-digest %{DATA:postfix_tls_server_digest})?
POSTFIX_TLSVERIFICATION certificate verification failed for %{POSTFIX_RELAY}: %{GREEDYDATA:postfix_tls_error}

POSTFIX_DELAYS %{NUMBER:postfix_delay_before_qmgr}/%{NUMBER:postfix_delay_in_qmgr}/%{NUMBER:postfix_delay_conn_setup}/%{NUMBER:postfix_delay_transmission}
POSTFIX_LOSTCONN (Connection timed out|No route to host|Connection refused|Network is unreachable|lost connection|timeout|SSL_accept error|-1|Address not available|Operation timed out|Address not available|Operation timed out|bare <LF> received)
POSTFIX_LOSTCONN_REASONS (receiving the initial server greeting|sending message body|sending end of data -- message may be sent more than once|sending %{POSTFIX_SMTP_STAGE:postfix_smtp_stage})
POSTFIX_PROXY_MESSAGE (%{POSTFIX_STATUS_CODE:postfix_proxy_status_code} )?(%{POSTFIX_STATUS_CODE_ENHANCED:postfix_proxy_status_code_enhanced})?.*
POSTFIX_COMMAND_COUNTER_DATA (helo=(%{INT:postfix_cmd_helo_accepted}/)?%{INT:postfix_cmd_helo} )?(ehlo=(%{INT:postfix_cmd_ehlo_accepted}/)?%{INT:postfix_cmd_ehlo} )?(starttls=(%{INT:postfix_cmd_starttls_accepted}/)?%{INT:postfix_cmd_starttls} )?(auth=(%{INT:postfix_cmd_auth_accepted}/)?%{INT:postfix_cmd_auth} )?(mail=(%{INT:postfix_cmd_mail_accepted}/)?%{INT:postfix_cmd_mail} )?(rcpt=(%{INT:postfix_cmd_rcpt_accepted}/)?%{INT:postfix_cmd_rcpt} )?(bdat=(%{INT:postfix_cmd_bdat_accepted}/)?%{INT:postfix_cmd_bdat} )?(data=(%{INT:postfix_cmd_data_accepted}/)?%{INT:postfix_cmd_data} )?(rset=(%{INT:postfix_cmd_rset_accepted}/)?%{INT:postfix_cmd_rset} )?(noop=(%{INT:postfix_cmd_noop_accepted}/)?%{INT:postfix_cmd_noop} )?(quit=(%{INT:postfix_cmd_quit_accepted}/)?%{INT:postfix_cmd_quit} )?(unknown=(%{INT:postfix_cmd_unknown_accepted}/)?%{INT:postfix_cmd_unknown} )?commands=(%{INT:postfix_cmd_count_accepted}/)?%{INT:postfix_cmd_count}


# warning patterns
POSTFIX_WARNING_WITH_KV (%{POSTFIX_QUEUEID:postfix_queueid}: )?%{POSTFIX_WARNING_LEVEL:postfix_message_level}: (%{POSTFIX_QUEUEID:postfix_queueid}: )?(%{POSTFIX_CLIENT}: )?%{GREEDYDATA:postfix_message}; %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data}
POSTFIX_WARNING_WITHOUT_KV (%{POSTFIX_QUEUEID:postfix_queueid}: )?%{POSTFIX_WARNING_LEVEL:postfix_message_level}: (%{POSTFIX_QUEUEID:postfix_queueid}: )?(%{POSTFIX_CLIENT}: )?%{GREEDYDATA:postfix_message}
POSTFIX_WARNING %{POSTFIX_WARNING_WITH_KV}|%{POSTFIX_WARNING_WITHOUT_KV}

# smtpd patterns
POSTFIX_SMTPD_CONNECT connect from %{POSTFIX_CLIENT}
POSTFIX_SMTPD_DISCONNECT disconnect from %{POSTFIX_CLIENT}( %{GREEDYDATA:postfix_command_counter_data})?
POSTFIX_SMTPD_LOSTCONN %{POSTFIX_LOSTCONN:postfix_smtpd_lostconn_data}( after %{POSTFIX_SMTP_STAGE:postfix_smtp_stage}( \(%{INT} bytes\))?)? from %{POSTFIX_CLIENT}(: %{GREEDYDATA:postfix_smtpd_lostconn_reason})?
POSTFIX_SMTPD_NOQUEUE %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_ACTION:postfix_action}: %{POSTFIX_SMTP_STAGE:postfix_smtp_stage} from %{POSTFIX_CLIENT}:( %{POSTFIX_STATUS_CODE:postfix_status_code} %{POSTFIX_STATUS_CODE_ENHANCED:postfix_status_code_enhanced})?( <%{DATA:postfix_status_data}>:)? (%{POSTFIX_DNSBL_MESSAGE}|%{GREEDYDATA:postfix_status_message};) %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data}
POSTFIX_SMTPD_PIPELINING improper command pipelining after %{POSTFIX_SMTP_STAGE:postfix_smtp_stage} from %{POSTFIX_CLIENT}: %{GREEDYDATA:postfix_improper_pipelining_data}
POSTFIX_SMTPD_PROXY proxy-%{POSTFIX_ACTION:postfix_proxy_result}: (%{POSTFIX_SMTP_STAGE:postfix_proxy_smtp_stage}): %{POSTFIX_PROXY_MESSAGE:postfix_proxy_message}; %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data}

# cleanup patterns
POSTFIX_CLEANUP_MILTER %{POSTFIX_QUEUEID:postfix_queueid}: milter-%{POSTFIX_ACTION:postfix_milter_result}: %{GREEDYDATA:postfix_milter_message}; %{GREEDYDATA_NO_COLON:postfix_keyvalue_data}(: %{GREEDYDATA:postfix_milter_data})?
POSTFIX_CLEANUP_PREPEND_TYPE (header|body)
POSTFIX_CLEANUP_PREPEND %{POSTFIX_QUEUEID:postfix_queueid}: prepend: %{POSTFIX_CLEANUP_PREPEND_TYPE:postfix_prepend_type} %{GREEDYDATA:postfix_prepend_trigger} from %{POSTFIX_CLIENT}; %{GREEDYDATA_NO_COLON:postfix_keyvalue_data}: %{GREEDYDATA:postfix_prepend_value}
POSTFIX_CLEANUP_MESSAGEID %{POSTFIX_QUEUEID:postfix_queueid}: message-id=<?%{GREEDYDATA_NO_BRACKET:postfix_message-id}>?

# qmgr patterns
POSTFIX_QMGR_MESSAGE (removed|skipped, still being delivered)
POSTFIX_QMGR_INFO %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_QMGR_MESSAGE:postfix_message}
POSTFIX_QMGR_ACTIVE %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data} \(queue active\)
POSTFIX_QMGR_EXPIRED %{POSTFIX_QUEUEID:postfix_queueid}: from=<%{DATA:postfix_from}>, status=%{STATUS_WORD:postfix_status}, returned to sender

# pipe patterns
POSTFIX_PIPE_ANY %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data}, status=%{STATUS_WORD:postfix_status} \(%{GREEDYDATA:postfix_pipe_response}\)

# error patterns
POSTFIX_ERROR_ANY %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data}, status=%{STATUS_WORD:postfix_status} \(%{GREEDYDATA:postfix_error_response}\)

# discard patterns
POSTFIX_DISCARD_ANY %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data} status=%{STATUS_WORD:postfix_status} %{GREEDYDATA}

# postsuper patterns
POSTFIX_POSTSUPER_ACTIONS (removed|requeued|placed on hold|released from hold)
POSTFIX_POSTSUPER_ACTION %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_POSTSUPER_ACTIONS:postfix_postsuper_action}
POSTFIX_POSTSUPER_SUMMARY_ACTIONS (Deleted|Requeued|Placed on hold|Released from hold)
POSTFIX_POSTSUPER_SUMMARY %{POSTFIX_POSTSUPER_SUMMARY_ACTIONS:postfix_postsuper_summary_action}: %{NUMBER:postfix_postsuper_summary_count} messages?

# postscreen patterns
POSTFIX_PS_CONNECT CONNECT from %{POSTFIX_CLIENT} to \[%{IP:postfix_server_ip}\]:%{INT:postfix_server_port}
POSTFIX_PS_ACCESS %{POSTFIX_PS_ACCESS_ACTION:postfix_postscreen_access} %{POSTFIX_CLIENT}
POSTFIX_PS_NOQUEUE %{POSTFIX_SMTPD_NOQUEUE}
POSTFIX_PS_TOOBUSY NOQUEUE: reject: CONNECT from %{POSTFIX_CLIENT}: %{GREEDYDATA:postfix_postscreen_toobusy_data}
POSTFIX_PS_DNSBL %{POSTFIX_PS_VIOLATION:postfix_postscreen_violation} rank %{INT:postfix_postscreen_dnsbl_rank} for %{POSTFIX_CLIENT}
POSTFIX_PS_CACHE cache %{DATA} full cleanup: retained=%{NUMBER:postfix_postscreen_cache_retained} dropped=%{NUMBER:postfix_postscreen_cache_dropped} entries
POSTFIX_PS_VIOLATIONS %{POSTFIX_PS_VIOLATION:postfix_postscreen_violation}( %{INT})?( after %{NUMBER:postfix_postscreen_violation_time})? from %{POSTFIX_CLIENT}(( after %{POSTFIX_SMTP_STAGE:postfix_smtp_stage})?(: %{GREEDYDATA:postfix_postscreen_data})?| in tests (after|before) SMTP handshake)

# dnsblog patterns
POSTFIX_DNSBLOG_LISTING addr %{IP:postfix_client_ip} listed by domain %{HOSTNAME:postfix_dnsbl_domain} as %{IP:postfix_dnsbl_result}

# tlsproxy patterns
POSTFIX_TLSPROXY_CONN (DIS)?CONNECT( from)? %{POSTFIX_CLIENT}

# anvil patterns
POSTFIX_ANVIL_CONN_RATE statistics: max connection rate %{NUMBER:postfix_anvil_conn_rate}/%{POSTFIX_TIME_UNIT:postfix_anvil_conn_period} for \(%{DATA:postfix_service}:(%{IP_UNKNOWN:postfix_client_ip_unknown}|%{IP:postfix_client_ip})\) at %{SYSLOGTIMESTAMP:postfix_anvil_timestamp}
POSTFIX_ANVIL_CONN_CACHE statistics: max cache size %{NUMBER:postfix_anvil_cache_size} at %{SYSLOGTIMESTAMP:postfix_anvil_timestamp}
POSTFIX_ANVIL_CONN_COUNT statistics: max connection count %{NUMBER:postfix_anvil_conn_count} for \(%{DATA:postfix_service}:(%{IP_UNKNOWN:postfix_client_ip_unknown}|%{IP:postfix_client_ip})\) at %{SYSLOGTIMESTAMP:postfix_anvil_timestamp}

# smtp patterns
POSTFIX_SMTP_DELIVERY %{POSTFIX_KEYVALUE} status=%{STATUS_WORD:postfix_status}( \(%{GREEDYDATA:postfix_smtp_response}\))?
POSTFIX_SMTP_CONNERR connect to %{POSTFIX_RELAY}: %{POSTFIX_LOSTCONN:postfix_smtp_lostconn_data}
POSTFIX_SMTP_SSLCONNERR SSL_connect error to %{POSTFIX_RELAY}: %{POSTFIX_LOSTCONN:postfix_smtp_lostconn_data}
POSTFIX_SMTP_LOSTCONN %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_LOSTCONN:postfix_smtp_lostconn_data} with %{POSTFIX_RELAY}( while %{POSTFIX_LOSTCONN_REASONS:postfix_smtp_lostconn_reason})?
POSTFIX_SMTP_TIMEOUT %{POSTFIX_QUEUEID:postfix_queueid}: conversation with %{POSTFIX_RELAY} timed out( while %{POSTFIX_LOSTCONN_REASONS:postfix_smtp_lostconn_reason})?
POSTFIX_SMTP_RELAYERR %{POSTFIX_QUEUEID:postfix_queueid}: host %{POSTFIX_RELAY} said: %{GREEDYDATA:postfix_smtp_response} \(in reply to %{POSTFIX_SMTP_STAGE:postfix_smtp_stage} command\)
POSTFIX_SMTP_RELAYREFUSED %{POSTFIX_QUEUEID:postfix_queueid}: host %{POSTFIX_RELAY} refused to talk to me: %{GREEDYDATA:postfix_smtp_response}
POSTFIX_SMTP_SSLAUTHERR %{POSTFIX_QUEUEID:postfix_queueid}: SASL authentication failed; server %{POSTFIX_RELAY} said: %{GREEDYDATA:postfix_smtp_response}
POSTFIX_SMTP_UTF8 host %{POSTFIX_RELAY} offers SMTPUTF8 support, but not 8BITMIME
POSTFIX_SMTP_PIX %{POSTFIX_QUEUEID:postfix_queueid}: enabling PIX workarounds: %{DATA:postfix_pix_workaround} for %{POSTFIX_RELAY}

# master patterns
POSTFIX_MASTER_START (daemon started|reload) -- version %{DATA:postfix_version}, configuration %{PATH:postfix_config_path}
POSTFIX_MASTER_EXIT terminating on signal %{INT:postfix_termination_signal}

# bounce patterns
POSTFIX_BOUNCE_NOTIFICATION %{POSTFIX_QUEUEID:postfix_queueid}: sender (non-delivery|delivery status|delay) notification: %{POSTFIX_QUEUEID:postfix_bounce_queueid}

# scache patterns
POSTFIX_SCACHE_LOOKUPS statistics: (address|domain) lookup hits=%{INT:postfix_scache_hits} miss=%{INT:postfix_scache_miss} success=%{INT:postfix_scache_success}%
POSTFIX_SCACHE_SIMULTANEOUS statistics: max simultaneous domains=%{INT:postfix_scache_domains} addresses=%{INT:postfix_scache_addresses} connection=%{INT:postfix_scache_connection}
POSTFIX_SCACHE_TIMESTAMP statistics: start interval %{SYSLOGTIMESTAMP:postfix_scache_timestamp}

# verify patterns
POSTFIX_VERIFY_CACHE cache %{DATA} %{POSTFIX_VERIFY_CLEANUP_TYPE:postfix_verify_cleanup_type} cleanup: retained=%{INT:postfix_verify_cache_retained} dropped=%{INT:postfix_verify_cache_dropped} entries

# local patterns
POSTFIX_LOCAL_DELIVERY %{POSTFIX_KEYVALUE} status=%{STATUS_WORD:postfix_status}( \(%{GREEDYDATA:postfix_local_response}\))?

# aggregate all patterns
POSTFIX_SMTPD %{POSTFIX_SMTPD_CONNECT}|%{POSTFIX_SMTPD_DISCONNECT}|%{POSTFIX_SMTPD_LOSTCONN}|%{POSTFIX_SMTPD_NOQUEUE}|%{POSTFIX_SMTPD_PIPELINING}|%{POSTFIX_TLSCONN}|%{POSTFIX_WARNING}|%{POSTFIX_SMTPD_PROXY}|%{POSTFIX_KEYVALUE}
POSTFIX_CLEANUP %{POSTFIX_CLEANUP_MESSAGEID}|%{POSTFIX_CLEANUP_MILTER}|%{POSTFIX_CLEANUP_PREPEND}|%{POSTFIX_WARNING}|%{POSTFIX_KEYVALUE}
POSTFIX_QMGR %{POSTFIX_QMGR_INFO}|%{POSTFIX_QMGR_ACTIVE}|%{POSTFIX_QMGR_EXPIRED}|%{POSTFIX_WARNING}
POSTFIX_PIPE %{POSTFIX_PIPE_ANY}
POSTFIX_POSTSCREEN %{POSTFIX_PS_CONNECT}|%{POSTFIX_PS_ACCESS}|%{POSTFIX_PS_NOQUEUE}|%{POSTFIX_PS_TOOBUSY}|%{POSTFIX_PS_CACHE}|%{POSTFIX_PS_DNSBL}|%{POSTFIX_PS_VIOLATIONS}|%{POSTFIX_WARNING}
POSTFIX_DNSBLOG %{POSTFIX_DNSBLOG_LISTING}|%{POSTFIX_WARNING}
POSTFIX_ANVIL %{POSTFIX_ANVIL_CONN_RATE}|%{POSTFIX_ANVIL_CONN_CACHE}|%{POSTFIX_ANVIL_CONN_COUNT}
POSTFIX_SMTP %{POSTFIX_SMTP_DELIVERY}|%{POSTFIX_SMTP_CONNERR}|%{POSTFIX_SMTP_SSLCONNERR}|%{POSTFIX_SMTP_SSLAUTHERR}|%{POSTFIX_SMTP_LOSTCONN}|%{POSTFIX_SMTP_TIMEOUT}|%{POSTFIX_SMTP_RELAYERR}|%{POSTFIX_SMTP_RELAYREFUSED}|%{POSTFIX_TLSCONN}|%{POSTFIX_WARNING}|%{POSTFIX_SMTP_UTF8}|%{POSTFIX_TLSVERIFICATION}|%{POSTFIX_SMTP_PIX}
POSTFIX_DISCARD %{POSTFIX_DISCARD_ANY}|%{POSTFIX_WARNING}
POSTFIX_LMTP %{POSTFIX_SMTP}
POSTFIX_PICKUP %{POSTFIX_KEYVALUE}
POSTFIX_TLSPROXY %{POSTFIX_TLSPROXY_CONN}|%{POSTFIX_WARNING}
POSTFIX_MASTER %{POSTFIX_MASTER_START}|%{POSTFIX_MASTER_EXIT}|%{POSTFIX_WARNING}
POSTFIX_BOUNCE %{POSTFIX_BOUNCE_NOTIFICATION}
POSTFIX_SENDMAIL %{POSTFIX_WARNING}
POSTFIX_POSTDROP %{POSTFIX_WARNING}
POSTFIX_SCACHE %{POSTFIX_SCACHE_LOOKUPS}|%{POSTFIX_SCACHE_SIMULTANEOUS}|%{POSTFIX_SCACHE_TIMESTAMP}
POSTFIX_TRIVIAL_REWRITE %{POSTFIX_WARNING}
POSTFIX_TLSMGR %{POSTFIX_WARNING}
POSTFIX_LOCAL %{POSTFIX_LOCAL_DELIVERY}|%{POSTFIX_WARNING}
POSTFIX_VIRTUAL %{POSTFIX_SMTP_DELIVERY}
POSTFIX_ERROR %{POSTFIX_ERROR_ANY}
POSTFIX_POSTSUPER %{POSTFIX_POSTSUPER_ACTION}|%{POSTFIX_POSTSUPER_SUMMARY}
POSTFIX_POSTMAP %{POSTFIX_WARNING}
POSTFIX_SCRIPT %{POSTFIX_WARNING}
POSTFIX_VERIFY %{POSTFIX_VERIFY_CACHE}

Where do i missed or Is there any other solution to monitor postfix logs.

Thanks in Advance

Badger · February 13, 2024, 5:49pm

I see that your grok patterns include POSTFIX_SCACHE, but logstash disagrees. Set log.level DEBUG and grok will log every pattern as it initializes them. Make sure that the patterns it loads match the patterns you expect.

kazishafiullah · February 14, 2024, 6:56am

I think the problem is filter files cannot read by logstash. Make sure that filter files should remain the proper directory.

uzzaldas · February 14, 2024, 12:20pm

Yes now solved error and arise another issue, Now logs are receiving in logstash but the problem is- Logstash cannot create Index in Elasticsearch.

File logstash.conf

input {
        beats {
                port => 5044
        }

        tcp {
                port => 50000
        }
}

## Add your filters / logstash plugins configuration here

output {
        elasticsearch {
                hosts => "elasticsearch:9200"
                user => "logstash_internal"
                password => "${LOGSTASH_INTERNAL_PASSWORD}"
        }
}

docker-compost.yml

version: '3.7'

services:

  # The 'setup' service runs a one-off script which initializes users inside
  # Elasticsearch — such as 'logstash_internal' and 'kibana_system' — with the
  # values of the passwords defined in the '.env' file. It also creates the
  # roles required by some of these users.
  #
  # This task only needs to be performed once, during the *initial* startup of
  # the stack. Any subsequent run will reset the passwords of existing users to
  # the values defined inside the '.env' file, and the built-in roles to their
  # default permissions.
  #
  # By default, it is excluded from the services started by 'docker compose up'
  # due to the non-default profile it belongs to. To run it, either provide the
  # '--profile=setup' CLI flag to Compose commands, or "up" the service by name
  # such as 'docker compose up setup'.
  setup:
    profiles:
      - setup
    build:
      context: setup/
      args:
        ELASTIC_VERSION: ${ELASTIC_VERSION}
    init: true
    volumes:
      - ./setup/entrypoint.sh:/entrypoint.sh:ro,Z
      - ./setup/lib.sh:/lib.sh:ro,Z
      - ./setup/roles:/roles:ro,Z
    environment:
      ELASTIC_PASSWORD: ${ELASTIC_PASSWORD:-}
      LOGSTASH_INTERNAL_PASSWORD: ${LOGSTASH_INTERNAL_PASSWORD:-}
      KIBANA_SYSTEM_PASSWORD: ${KIBANA_SYSTEM_PASSWORD:-}
      METRICBEAT_INTERNAL_PASSWORD: ${METRICBEAT_INTERNAL_PASSWORD:-}
      FILEBEAT_INTERNAL_PASSWORD: ${FILEBEAT_INTERNAL_PASSWORD:-}
      HEARTBEAT_INTERNAL_PASSWORD: ${HEARTBEAT_INTERNAL_PASSWORD:-}
      MONITORING_INTERNAL_PASSWORD: ${MONITORING_INTERNAL_PASSWORD:-}
      BEATS_SYSTEM_PASSWORD: ${BEATS_SYSTEM_PASSWORD:-}
    networks:
      - elk
    depends_on:
      - elasticsearch

  elasticsearch:
    build:
      context: elasticsearch/
      args:
        ELASTIC_VERSION: ${ELASTIC_VERSION}
    volumes:
      - ./elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml:ro,Z
      - elasticsearch:/usr/share/elasticsearch/data:Z
    ports:
      - 9200:9200
      - 9300:9300
    environment:
      node.name: elasticsearch
      ES_JAVA_OPTS: -Xms512m -Xmx512m
      # Bootstrap password.
      # Used to initialize the keystore during the initial startup of
      # Elasticsearch. Ignored on subsequent runs.
      ELASTIC_PASSWORD: ${ELASTIC_PASSWORD:-}
      # Use single node discovery in order to disable production mode and avoid bootstrap checks.
      # see: https://www.elastic.co/guide/en/elasticsearch/reference/current/bootstrap-checks.html
      discovery.type: single-node
    networks:
      - elk
    restart: unless-stopped

  logstash:
    build:
      context: logstash/
      args:
        ELASTIC_VERSION: ${ELASTIC_VERSION}
    volumes:
      - ./logstash/config/logstash.yml:/usr/share/logstash/config/logstash.yml:ro,Z
      - ./logstash/patterns.d:/usr/share/logstash/patterns.d:ro,Z
      # - ./logstash/pipeline:/usr/share/logstash/pipeline:ro,Z
      - ./logstash/conf.d:/usr/share/logstash/conf.d:ro,Z
    ports:
      - 5044:5044
      - 50000:50000/tcp
      - 50000:50000/udp
      - 9600:9600
    environment:
      LS_JAVA_OPTS: -Xms256m -Xmx256m
      LOGSTASH_INTERNAL_PASSWORD: ${LOGSTASH_INTERNAL_PASSWORD:-}
    networks:
      - elk
    depends_on:
      - elasticsearch
    restart: unless-stopped

system · March 13, 2024, 12:21pm

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