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1de77292c9
* Only show extinfo if stat is the GNU version * Unify variable references * Better legend when type is not GAUGE Signed-off-by: Olivier Mehani <shtrom@ssji.net>
91 lines
2 KiB
Bash
Executable file
91 lines
2 KiB
Bash
Executable file
#!/bin/sh
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: << =cut
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=head1 NAME
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file_length_ - Plugin to monitor the length of specified files
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Useful for things such as lists (white, black, user, ...).
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The type of metric defaults to GAUGE, but it can be configured to, say, DERIVE,
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which is useful for monitoring the rate of message in error logs.
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=head1 CONFIGURATION
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[file_length_IDENTIFIER]
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env.files FILEPATHGLOB1 FILEPATHGLOB2 ...
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env.category system
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env.title OPTIONAL_TITLE
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env.logarithmic 1
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env.type GAUGE
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=head1 AUTHOR
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Olivier Mehani <shtrom+munin@ssji.net> (based on disk/log_sizes)
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=head1 LICENSE
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SPDX-License-Identifier: GPL-2.0-only
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=head1 MAGIC MARKERS
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#%# family=manual
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=cut
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# needs shellcheck -x /usr/share/munin/plugins/plugin.sh
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# shellcheck source=/usr/share/munin/plugins/plugin.sh
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. "${MUNIN_LIBDIR}/plugins/plugin.sh"
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NAME=$(echo "${0}" | sed 's/.*_//')
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TITLE=${title:-File lengths for ${NAME}}
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CATEGORY=${category:-system}
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FILES=${files:-/var/log/messages}
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# we want globbing to happen here
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# shellcheck disable=SC2116 disable=SC2086
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FILES=$(echo ${FILES})
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TYPE=${type:-GAUGE}
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if [ "${1}" = "config" ] ; then
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# shellcheck disable=SC2154
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if [ "${logarithmic}" = "1" ]; then
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graph_args="-o"
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else
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graph_args="-l 0"
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fi
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cat <<EOF
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graph_title ${TITLE}
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graph_args ${graph_args} --base 1000
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graph_category ${CATEGORY}
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EOF
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if [ "${TYPE}" = "GAUGE" ]; then
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echo "graph_info This graph shows the length of ${FILES}"
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echo "graph_vlabel length (lines)"
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else
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echo "graph_info This graph shows the addition of new lines in ${FILES}"
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# ${graph_period} is not a shell variable
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# shellcheck disable=SC2016
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echo 'graph_vlabel new lines per ${graph_period}'
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fi
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for F in ${FILES}; do
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MF=$(clean_fieldname "${F}")
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BF=$(basename "${F}")
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echo "${MF}.label ${BF}"
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echo "${MF}.type ${TYPE}"
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echo "${MF}.min 0"
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done
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else
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HAS_GNU_STAT=$(stat --help 2>&1| grep GNU)
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for F in ${FILES}; do
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MF=$(echo "${F}" | sed 's/[-\/\.]/_/g')
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echo "${MF}.value $(wc -l < "${F}")"
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if [ -n "${HAS_GNU_STAT}" ]; then
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echo "${MF}.extinfo $(stat --printf="%sB\n" "${F}")"
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fi
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done
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fi
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