utiladm

• repository for administrative scripts that accumulate while doing things.
• they typically require privileges or build or clean things ("adm").

[email protected]

https://github.com/smemsh/utiladm/

https://spdx.org/licenses/GPL-2.0

Contents

• pylinks
• klogpoll
• pybuild
• pydeps
• cmdline
• lvmchk

pylinks

set up symlinks in $2 (default /usr/local) to installed python root $1

notes:

• aborts on attempt to clobber any regular files in target
• symlinks allowed to exist already in the target, get overwritten
• audits at finish to make sure all files represented

klogpoll

read kernel logs since last poll, write cleaned up lines to stdout

• reads kernel logs, as deposited by rsyslogd/syslog-ng, since last poll
• run as cron job, outputs email-escaped lines, for cron to send in emails
• uses state file to determine where we left off last poll
• properly handles truncation and rotation
• requires syslogd configured to write to KMSGFILE
• do message filtering (ie, for common false-alarms) in syslog config

pybuild

builds static or dynamically linked Python + OpenSSL

always statically links libssl/libcrypto

• script to configure and build python, makes tar.zst
• last tested with python 3.12 line, openssl 3.0 line
• has some hardcoded paths, confined to variables

arg1:

• whether to build 'static' or 'dynamic' interpreter

pydeps

audit a python build archive for extension module link deps

• list modules with runtime link dependencies OTHER THAN LIBC
• intended to assist in developing a Setup.local "static" section
• uses a temporary directory to extract all .so files
• removes tmpdir when done

arg1:

• path to python build archive (tar.zst format)

cmdline

displays columnated key-value rows of current kernel's command line args

lvmchk

• checks all lvm volumes for thin data/metadata usage
• prints volume name if exceeds threshold
• run in cron job to mail when thin pool out-of-space approaches