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nix-git/modules/journalwatch.nix

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{ config, pkgs, ... }:
{
# Systemd Journal Monitoring.
# Alternative:
# journal-biref
# https://github.com/twaugh/journal-brief
# https://opensource.com/article/20/7/systemd-journals-email
# Write to Systemd Journal:
# echo 'hello' | systemd-cat -p emerg
# echo 'hello' | systemd-cat -t someapp -p emerg
# View Systemd Journal.
# Output similar to dmesg
# journalctl -b -k
# Filter by app:
# journalctl -b -t someapp
# Filter by priority:
# journalctl -b -p 5
# Manually execute journalwatch timer:
# sudo systemctl start journalwatch.service
# Find a message and view its details
# journalctl -b -p5 -o json-pretty
# Then press "/" and enter a pattern, then press "Enter".
assertions = [{
assertion = config.services.opensmtpd.enable;
message = "journalwatch requires a configured sendmail MTA, see sendmail-mta.nix.";
}];
services.journalwatch = {
enable = true;
# TODO: Same as configured by sendmail MTA.
mailFrom = "langbein@mail.de";
mailTo = "daniel+journalwatch@systemli.org";
#interval = "hourly";
# Lowest priority of message to be considered. A value between 7 (“debug”), and 0 (“emerg”). Defaults to 6 (“info”). If you don't care about anything with “info” priority, you can reduce this to e.g. 5 (“notice”) to considerably reduce the amount of messages without needing many filterBlocks.
priority = 5;
# Default patterns: https://github.com/The-Compiler/journalwatch/blob/363725ac4b8aa841d87654fa8a63403a59ad1275/journalwatch.py#L71
# If the value of `match` starts and ends with a forward-slash, it is interpreted as a regular expression, if not, it's an exact match.
# `filters` are always regular expressions.
# All regular expressions have to match the full string!
#
# TODO: A "\s" in the double-quoted string `match` is inserted as `s` in the generated config file! We have to use "\\s" to insert `\s`.
# TODO: A ''\s'' in the multiline string `filter` is inserted as `\s` in the generated config file.
#
filterBlocks = [
#
# _TRANSPORT
#
{ # yodaNas
filters = ''
booting system configuration /nix/store/\S+\.05pre-git
'';
match = "_TRANSPORT = kernel";
}
#
# _EXE
#
{ # yodaNas
filters = ''
# Ignore any invocation of sudo.
.*
'';
match = "_EXE = //nix/store/[a-z0-9]+-sudo-[0-9]+\.[0-9]+\.[0-9]+[a-z0-9]+/bin/sudo/";
}
#
# _SYSTEMD_CGROUP
#
{ # yodaYoga
filters = ''
parent not found! continent_id [0-9]+
'';
match = "_SYSTEMD_CGROUP = /system.slice/docker.service";
}
#
# CONTAINER_NAME
#
{ # yodaNas
filters = ''
.*
'';
match = "CONTAINER_NAME = /(docker-compose-btp-proxy-1|nc_web_[^-_\\s]+|nginx_arch\.p1st\.de)/";
}
{ # yodaNas
# TODO: Open issue on GitHub https://github.com/nginx-proxy/nginx-proxy/issues/1256. Maybe set env variable RESOLVERS=1.1.1.1?
filters = ''
\S+ \S+ \[warn\] [0-9]+#[0-9]+: no resolver defined to resolve r3\.o\.lencr\.org while requesting certificate status, responder: r3\.o\.lencr\.org, certificate: "/etc/nginx/certs/\S+\.crt"
\S+ \S+ \[error\] [0-9]+#[0-9]+: OCSP responder sent invalid "Content-Type" header: "text/html" while requesting certificate status, responder: r3\.o\.lencr\.org, peer: \S+, certificate: "/etc/nginx/certs/\S+\.crt"
\S+ \S+ \[error\] [0-9]+#[0-9]+: \*[0-9]+ connect\(\) failed \(111: Connection refused\) while connecting to upstream, client: \S+, server: \S+, request: "[^"]+", upstream: "[^"]+", host: "[^"]+"
'';
match = "CONTAINER_NAME = nginx-proxy";
}
#
# IMAGE_NAME
#
{ # yodaNas, yodaYoga
filters = ''
.*
'';
match = "IMAGE_NAME = /(p1st/docker-gen:.+|nginxproxy/acme-companion|biketripplanner/digitransit-ui:.+|thetorproject/snowflake-proxy:.+|collabora/code|wordpress|danielszabo99/microbin|p1st/mastodon-toot-follower:.+|browserless/chrome)/";
}
{ # yodaNas
filters = ''
\S+ \S+ \[error\] [0-9]+#[0-9]+: \S+ open\(\) "/usr/share/nginx/html/robots\.txt" failed \(2: No such file or directory\), client: \S+, server: localhost, request: "GET /robots\.txt HTTP/[^"]+", host: "[^"]+"
#
\S+\S+ \[notice\] [0-9]+#[0-9]+: signal 3 \(SIGQUIT\) received, shutting down
\S+\S+ \[notice\] [0-9]+#[0-9]+: gracefully shutting down
\S+\S+ \[notice\] [0-9]+#[0-9]+: exiting
\S+\S+ \[notice\] [0-9]+#[0-9]+: exit
\S+\S+ \[notice\] [0-9]+#[0-9]+: signal 17 \(SIGCHLD\) received from [0-9]+
\S+\S+ \[notice\] [0-9]+#[0-9]+: worker process [0-9]+ exited with code 0
#
\S+\S+ \[notice\] [0-9]+#[0-9]+: signal 1 \(SIGHUP\) received, reconfiguring
\S+\S+ \[notice\] [0-9]+#[0-9]+: reconfiguring
\S+\S+ \[notice\] [0-9]+#[0-9]+: using the "epoll" event method
\S+\S+ \[notice\] [0-9]+#[0-9]+: nginx/\S+
\S+\S+ \[notice\] [0-9]+#[0-9]+: built by gcc \S+ \S+ (Alpine \S+)
\S+\S+ \[notice\] [0-9]+#[0-9]+: OS: Linux \S+
\S+\S+ \[notice\] [0-9]+#[0-9]+: getrlimit\(RLIMIT_NOFILE\): [0-9]+:[0-9]+
\S+\S+ \[notice\] [0-9]+#[0-9]+: start worker processes
\S+\S+ \[notice\] [0-9]+#[0-9]+: start worker process [0-9]+
'';
match = "IMAGE_NAME = /nginx:\S+/";
}
{ # yodaNas
# TODO: logged IP is not the public one, but always 172.24.0.6
filters = ''
Could not yet connect with DB\. Retrying in 10s \.\.\.
Nextcloud or one of the apps require upgrade - only a limited number of commands are available
You may use your browser or the occ upgrade command to do the upgrade
\[\S+ \S+\] NOTICE: ready to handle connections
[0-9] \[[>-]+\] [0-9] \[[>-]+\]
[0-9] \[[>-]+\]
\[\S+ \S+\] NOTICE: fpm is running, pid [0-9]+
\[\S+ \S+\] NOTICE: Finishing \.\.\.
\[\S+ \S+\] NOTICE: exiting, bye-bye!
#
# 1.1.1.1 - 28/Sep/2023:21:03:39 +0000 "GET /status.php" 200
# 1.1.1.1 - 28/Sep/2023:21:12:16 +0000 "GET /index.php" 200
# 1.1.1.1 - my-username 28/Sep/2023:21:20:16 +0000 "DELETE /index.php" 200
# 1.1.1.1 - my-username 28/Sep/2023:21:10:18 +0000 "PROPFIND /remote\.php" 207
# 1.1.1.1 - my-username 28/Sep/2023:21:11:48 +0000 "GET /ocs/v2.php" 304
# 1.1.1.1 - 28/Sep/2023:21:13:10 +0000 "GET /ocs/v2.php" 304
[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+ - \S* \S+ \+0000 "(DELETE|GET|HEAD|PATCH|POST|PROPFIND|PUT) /(index|status)\.php" (200|204|302|303|304|401|404|405)
[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+ - \S* \S+ \+0000 "(DELETE|GET|HEAD|MKCOL|MOVE|OPTIONS|POST|PROPFIND|PUT|REPORT) /remote\.php" (200|201|204|207|401|404|405|500)
[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+ - \S* \S+ \+0000 "(DELETE|GET) /ocs/(v1|v2)\.php" (200|204|304|404)
[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+ - \S* \S+ \+0000 "GET /(ocm|ocs)-provider/index\.php" 200
[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+ - \S* \S+ \+0000 "PROPFIND /public\.php" (207|401|404)
'';
match = "IMAGE_NAME = p1st/nextcloud:stable-fpm-alpine";
}
{ # yodaNas
filters = ''
\S+ \S+ 0 \[Note\] Starting MariaDB \S+ source revision \S+ as process 1
\S+ \S+ 0 \[Note\] InnoDB: Compressed tables use zlib \S+
\S+ \S+ 0 \[Note\] InnoDB: Number of transaction pools: 1
\S+ \S+ 0 \[Note\] InnoDB: Using crc32 \+ pclmulqdq instructions
\S+ \S+ 0 \[Note\] InnoDB: Using liburing
\S+ \S+ 0 \[Note\] InnoDB: Initializing buffer pool, total size = 1\.000GiB, chunk size = 16\.000MiB
\S+ \S+ 0 \[Note\] InnoDB: Completed initialization of buffer pool
\S+ \S+ 0 \[Note\] InnoDB: Buffered log writes \(block size=512 bytes\)
\S+ \S+ 0 \[Note\] InnoDB: End of log at LSN=\S+
\S+ \S+ 0 \[Note\] InnoDB: 128 rollback segments are active.
\S+ \S+ 0 \[Note\] InnoDB: Setting file '\./\S+' size to 12\.000MiB\. Physically writing the file full; Please wait \.\.\.
\S+ \S+ 0 \[Note\] InnoDB: File '\./\S+' size is now 12\.000MiB\.
\S+ \S+ 0 \[Note\] InnoDB: log sequence number \S+; transaction id \S+
\S+ \S+ 0 \[Note\] InnoDB: Loading buffer pool\(s\) from /var/lib/mysql/ib_buffer_pool
\S+ \S+ 0 \[Note\] InnoDB: Read redo log up to LSN=\S+
\S+ \S+ 0 \[Note\] InnoDB: Buffer pool\(s\) load completed at \S+ \S+
\S+ \S+ 0 \[Note\] Plugin 'FEEDBACK' is disabled\.
\S+ \S+ 0 \[Note\] Server socket created on IP: '0.0.0.0'\.
\S+ \S+ 0 \[Note\] Server socket created on IP: '::'\.
\S+ \S+ 0 \[Note\] mariadbd: ready for connections\.
Version: '\S+' socket: '/run/mysqld/mysqld.sock' port: \S+ mariadb\.org binary distribution
#
\S+ \S+ 0 \[Note\] mariadbd \(initiated by: unknown\): Normal shutdown
\S+ \S+ 0 \[Note\] InnoDB: FTS optimize thread exiting\.
\S+ \S+ 0 \[Note\] InnoDB: Starting shutdown\.\.\.
\S+ \S+ 0 \[Note\] InnoDB: Dumping buffer pool\(s\) to /var/lib/mysql/ib_buffer_pool
\S+ \S+ 0 \[Note\] InnoDB: Buffer pool\(s\) dump completed at \S+ \S+
\S+ \S+ 0 \[Note\] InnoDB: Removed temporary tablespace data file: "\./ibtmp1"
\S+ \S+ 0 \[Note\] InnoDB: Shutdown completed; log sequence number \S+; transaction id \S+
\S+ \S+ 0 \[Note\] mariadbd: Shutdown complete
\s*
'';
match = "IMAGE_NAME = /mariadb:.+/";
}
{ # yodaNas
filters = ''
\S+\S+ UTC \[[0-9]\] LOG: received fast shutdown request
\S+\S+ UTC \[[0-9]\] LOG: aborting any active transactions
\S+\S+ UTC \[[0-9]\] FATAL: terminating connection due to administrator command
\S+\S+ UTC \[[0-9]\] LOG: shutting down
\S+\S+ UTC \[[0-9]\] LOG: database system is shut down
'';
match = "IMAGE_NAME = postgres:11-alpine";
}
{ # yodaNas
filters = ''
\S+ [0-9]+ \[Warning\] \[MY-013360\] \[Server\] Plugin mysql_native_password reported: '''mysql_native_password' is deprecated and will be removed in a future release\. Please use caching_sha2_password instead'
'';
match = "IMAGE_NAME = /mysql:[0-9]+/";
}
{ # yodaNas
filters = ''
crond: crond \(busybox \S+\) started, log level [0-9]+
crond: USER root pid\s+[0-9]+ cmd wget -qO- http://money\.p1st\.de:8080/api/v1/cron/\S+ > /proc/1/fd/1 2>/proc/1/fd/2
'';
match = "IMAGE_NAME = busybox";
}
{ # yodaNas
filters = ''
\[\S+ \S+ \S+ \S+ \S+\] \[mpm_prefork:notice\] \[pid 1\] AH00170: caught SIGWINCH, shutting down gracefully
'';
match = "IMAGE_NAME = fireflyiii/core:latest";
}
{ # yodaNas
filters = ''
\[\S+ \S+ \S+ \S+ \S+\] \[mpm_prefork:notice\] \[pid 1\] AH00170: caught SIGWINCH, shutting down gracefully
'';
match = "IMAGE_NAME = fireflyiii/data-importer:latest";
}
{ # yodaNas
filters = ''
.*
'';
match = "IMAGE_NAME = /(deluan/navidrome|ghcr\.io/dgtlmoon/changedetection\.io)/";
}
#
# _SYSTEMD_UNIT
#
{ # yodaTux
filters = ''
.*
'';
match = "_SYSTEMD_UNIT = /(bluetooth\.service|cups\.service)/";
}
{ # yodaNas. TODO: This is maybe a bug. It occurs when deploying and switching to a NixOS config with colmena.
filters = ''
\S+: Process '/nix/store/\S+-bash-\S+/bin/sh -c 'echo 2 > /proc/sys/net/ipv6/conf/\S+/use_tempaddr''' failed with exit code 1.
'';
match = "_SYSTEMD_UNIT = systemd-udevd.service";
}
{ # yodaTux, yodaYoga
filters = ''
The system will suspend now!
The system will power off now!
System is powering down\.
'';
match = "_SYSTEMD_UNIT = systemd-logind.service";
}
{ # yodaTux
filters = ''
Reexecuting\.
(finished )?switching to system configuration /nix/store/.+-nixos-system-.+-[0-9]+\.[0-9]+pre-git
'';
match = "_SYSTEMD_UNIT = user@0.service";
}
{ # yodaTux
filters = ''
Reexecuting\.
(finished )?switching to system configuration /nix/store/.+-nixos-system-.+-[0-9]+\.[0-9]+pre-git
'';
match = "_SYSTEMD_UNIT = user@1000.service";
}
{ # yodaTux
filters = ''
Reloading rules
Collecting garbage unconditionally\.\.\.
Loading rules from directory /.+
Finished loading, compiling and executing [0-9]+ rules
'';
match = "_SYSTEMD_UNIT = polkit.service";
}
{ # yodaTux
filters = ''
.+ error name="org\.bluez\.MediaEndpoint1\.Error\.NotImplemented" .+
# Open issue: https://github.com/NixOS/nixpkgs/issues/79220
Unknown (username|group) .+ in message bus configuration file
'';
match = "_SYSTEMD_UNIT = dbus.service";
}
{ # yodaTux
filters = ''
Mounted /dev/\S+ at /\S+ on behalf of uid [0-9]+
Cleaning up mount point /\S+ \(device \S+ is not mounted\)
Unmounted /dev/\S+ on behalf of uid [0-9]+
Successfully sent SCSI command SYNCHRONIZE CACHE to /dev/\S+
Successfully sent SCSI command START STOP UNIT to /dev/\S+
Powered off /dev/\S+ - successfully wrote to sysfs path /sys/devices/\S+
'';
match = "_SYSTEMD_UNIT = udisks2.service";
}
#
# SYSLOG_IDENTIFIER
#
{ # yodaYoga, yodaNas
filters = ''
# Somebody evil ...
error: kex_exchange_identification: banner line contains invalid characters
# error: kex_exchange_identification: client sent invalid protocol identifier "MGLNDD_188.194.209.73_2222"
# error: kex_exchange_identification: client sent invalid protocol identifier "GET / HTTP/1.1"
error: kex_exchange_identification: client sent invalid protocol identifier "[^"]+"
error: kex_exchange_identification: Connection closed by remote host
error: kex_exchange_identification: read: Connection reset by peer
error: PAM: Authentication failure for \S+ from \S+
fatal: Timeout before authentication for \S+ port [0-9]+
'';
match = "SYSLOG_IDENTIFIER = sshd";
}
{ # yodaTux. If the user `yoda` runs a command with `sudo`.
filters = ''
\s+yoda : TTY=pts/[0-9] ; PWD=/\S+ ; USER=root ; COMMAND=/.+
'';
match = "SYSLOG_IDENTIFIER = sudo";
}
{ # yodaYoga
filters = ''
(finished )?switching to system configuration /nix/store/.+-nixos-system-.+-[0-9]+\.[0-9]+pre-git
'';
match = "SYSLOG_IDENTIFIER = nixos";
}
{ # yodaYoga
filters = ''
\S+\.(service|scope): Consumed .+ CPU time, read .+ from disk, written .+ to disk.+
\S+\.(service|scope): Consumed .+ CPU time, received .+ IP traffic, sent .+ IP traffic\.
#
Shutting down\.
'';
match = "SYSLOG_IDENTIFIER = systemd";
}
{ # yodaTux
filters = ''
.*
'';
match = "SYSLOG_IDENTIFIER = //nix/store/.+/libexec/gdm-x-session/";
}
{ # yodaTux, yodaTab
filters = ''
#
# YodaTux
#
# Bug.
ACPI: FW issue: working around C-state latencies out of order
# Kernel WiFi driver bug.
#iwlwifi 0000:01:00\.0: .*
iwlwifi 0000:01:00\.0: Unhandled alg: 0x707
iwlwifi 0000:01:00\.0: Not associated and the session protection is over already...
iwlwifi 0000:01:00\.0: api flags index 2 larger than supported by driver
# Ignore.
audit: type=2000 audit([0-9]+\.[0-9]+:[0-9]+): state=initialized audit_enabled=0 res=1
ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
Kernel command line: initrd=\\efi\\nixos\\\S+-initrd-linux-\S+-initrd\.efi init=/nix/store/\S+-nixos-system-\S+-[0-9]+\.[0-9]+pre-git/init ip=dhcp loglevel=[0-9]
Linux version \S+ \(nixbld@localhost\) \(gcc \(GCC\) \S+, GNU ld \(GNU Binutils\) \S+\) #1-NixOS SMP PREEMPT_DYNAMIC \S+ \S+ \S+ \S+ UTC \S+
random: crng reseeded on system resumption
random: crng init done
sd [0-9]:0:0:0: \[sd[a-z]\] [0-9]+ 512-byte logical blocks: \([0-9]+ GB/[0-9]+ (GiB|TiB)\)
sd [0-9]:0:0:0: \[sd[a-z]\] [0-9]-byte physical blocks
sd [0-9]:0:0:0: \[sd[a-z]\] Write Protect is off
sd [0-9]:0:0:0: \[sd[a-z]\] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd [0-9]:0:0:0: \[sd[a-z]\] Optimal transfer size [0-9]+ bytes not a multiple of preferred minimum block size ([0-9] bytes)
sd [0-9]:0:0:0: \[sd[a-z]\] Attached SCSI disk
sd [0-9]:0:0:0: \[sd[a-z]\] Synchronizing SCSI cache
sd [0-9]:0:0:0: \[sd[a-z]\] supports TCG Opal
\#3
#
# YodaTab
#
# Ignore.
mmc0: cannot verify signal voltage switch
Initialise system trusted keyrings
Key type asymmetric registered
Asymmetric key parser 'x509' registered
Loading compiled-in X\.509 certificates
Key type \.fscrypt registered
Key type fscrypt-provisioning registered
Key type encrypted registered
Bridge firewalling registered
SCSI subsystem initialized
scsi [0-9]:0:0:0: Direct-Access\s+ATA.+PQ: 0 ANSI: 5
scsi [0-9]:0:0:0: Direct-Access.+PQ: 0 ANSI: 6
thinkpad_acpi: Disabling thinkpad-acpi brightness events by default\.\.\.
VFS: Disk quotas dquot_[0-9]\.[0-9]\.[0-9]
ata1\.00: supports DRM functions and may not be fully accessible
#
done\.
'';
match = "SYSLOG_IDENTIFIER = kernel";
}
{ # yodaTux
filters = ''
.*
'';
match = "SYSLOG_IDENTIFIER = simple-scan";
}
#
# _SYSTEMD_USER_UNIT
#
{ # yodaTux, yodaTab
filters = ''
.+ Setting AttentionNeeded to FALSE because EnsureCredentials\(\) succeded
Connecting to org\.freedesktop\.Tracker3\.Miner\.Files
'';
match = "_SYSTEMD_USER_UNIT = dbus.service";
}
{ # yodaTux
filters = ''
.*
'';
match = "_SYSTEMD_USER_UNIT = /(org\.gnome\..+\.service|pipewire\.service|wireplumber\.service|app-gnome-org\.gnome\.Software-[0-9]+\.scope)/";
}
];
};
}
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