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Use sudo to read last_run_summary and last_run_report files when nece… #48

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Use sudo to read last_run_summary and last_run_report files when nece… #48

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48 changes: 36 additions & 12 deletions check_puppet_agent
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Original file line number Diff line number Diff line change
Expand Up @@ -36,11 +36,20 @@
#}
#
# Sudo required.
# The user running this script must be allowed using sudo to run puppet config print, e.g. in /etc/sudoers include the 3 lines
# The user running this script must be allowed using sudo to run puppet config print,
# and in newer versions the summary and or report files. e.g. in /etc/sudoers include
# at least the the 3 puppet lines and optionally the lines for other puppet locations
# or the bintools used in this script.
# User_Alias NAGIOS=nagios
# Cmnd_Alias PUPPETCHECK=/usr/bin/puppet config print all, \ # puppet 2
# /usr/bin/puppet config print, \ # puppet 3
# /usr/bin/puppet config print --section agent # other puppet version
# /usr/bin/puppet config print, \ --section agent # other puppet version
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@baldurmen baldurmen Jan 8, 2019 •
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I'm guessing the placement of the comma and the slash here is a typo?

/usr/bin/puppet config print, \ --section agent -> /usr/bin/puppet config print --section agent, \

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@bill-mcgonigle Can you please move the \ to the end of line as @baldurmen suggests?

# /usr/local/sbin/puppet config print --section agent, \ # local install
# /opt/puppetlabs/bin/puppet config print --section agent, \
# /bin/grep * */state/last_run_*.yaml, \
# /bin/test * */state/last_run_*.yaml, \
# /usr/bin/test * */state/last_run_*.yaml, \
# /bin/sed * */state/last_run_*.yaml
# NAGIOS ALL=NOPASSWD:PUPPETCHECK
#
# CHANGELOG:
Expand Down Expand Up @@ -83,12 +92,13 @@
# 20160815 L. Buriola Add -E to show first error on output
# 20170426 benwtr Detect failure to retrieve catalog from server as a warning.
# 20180324 deric Discard puppet config error (logging) output
# 20180923 B McGonigle Use sudo to read last_run_summary and last_run_report files when necessary.

# FUNCTIONS
result () {
case $1 in
0) echo "OK: Puppet agent $version running catalogversion $config, and executed at $last_run_human for last time. $PERF_DATA";rc=0 ;;
1) echo "UNKNOWN: last_run_summary.yaml not found, not readable or incomplete";rc=3 ;;
1) echo "UNKNOWN: last_run_summary.yaml not found, not readable or incomplete. Check your sudo configuration.";rc=3 ;;
2) echo "WARNING: Last run was $time_since_last seconds ago. Warn is $WARN. $PERF_DATA";rc=1 ;;
3) echo "CRITICAL: Last run was $time_since_last seconds ago. Crit is $CRIT. $PERF_DATA";rc=2 ;;
4) echo "CRITICAL: Puppet daemon not running or something wrong with process";rc=2 ;;
Expand All @@ -99,7 +109,7 @@ result () {
9) echo "UNKNOWN: Internal error: $2"; rc=3 ;;
10) echo "OK (PROBABLY): Puppet agent last successful run $last_run_human (runinterval $runinterval, splay $splay, splaylimit $splay limit) but system has not been up long enough to guarantee a fresh puppet run should have occurred";rc=0 ;;
11) echo "INFO: Puppet agent is version $version, but should be $wanted_version. $PERF_DATA";rc=0 ;;
12) echo "UNKNOWN: last_run_report.yaml not found, not readable or incomplete";rc=3 ;;
12) echo "UNKNOWN: last_run_report.yaml not found, not readable or incomplete. Check your sudo configuration.";rc=3 ;;
13) echo "WARNING: Failed to retrieve catalog on last run.";rc=1 ;;
14) echo "UNKNOWN: No sudo executable found";rc=3 ;;
esac
Expand Down Expand Up @@ -128,7 +138,7 @@ usage () {
parse_yaml () {
local prefix=$2
local s='[[:space:]]*' w='[a-zA-Z0-9_]*' fs=$(echo @|tr @ '\034')
sed -ne "s|^\($s\):|\1|" \
$sudo_summary sed -ne "s|^\($s\):|\1|" \
-e "s|^\($s\)\($w\)$s:$s[\"']\(.*\)[\"']$s\$|\1$fs\2$fs\3|p" \
-e "s|^\($s\)\($w\)$s:$s\(.*\)$s\$|\1$fs\2$fs\3|p" $1 |
awk -F$fs '{
Expand All @@ -144,7 +154,7 @@ parse_yaml () {

# Get first error from last_run_report.yaml
get_first_error() {
grep_cmd="/bin/grep -B 3 -A 1"
grep_cmd="$sudo_report /bin/grep -B 3 -A 1"
first_error_time=$($grep_cmd "status: failure" $lastrunreport | grep "time: " | sort -n | head -1)
first_error=$($grep_cmd "$first_error_time" $lastrunreport | grep "message: " | sed 's/.*message: //' | head -1)
echo "FIRST_ERROR ($first_error)"
Expand Down Expand Up @@ -219,6 +229,10 @@ PUPPET=$(which puppet) || result 8
# Check if sudo installed
which sudo 1>/dev/null 2>&1 || result 14

# We'll set these if we need to run sudo to read the summary or report.
sudo_summary=
sudo_report=

# Find out Puppet major version to determine configprint syntax.
puppet_major_version=$($PUPPET -V|cut -d. -f1)

Expand Down Expand Up @@ -258,14 +272,24 @@ splay=$(parse_puppet_config "splay")
# If the lastrunfile is not given as a param try to find it ourselves.
[ -z "$lastrunfile" ] && lastrunfile=$(parse_puppet_config "lastrunfile")
# Check if state file exists.
[ -s $lastrunfile -a -r $lastrunfile ] || result 1
if ( [ ! -s $lastrunfile ] || [ ! -r $lastrunfile ] ); then
if ( sudo test -s $lastrunfile && sudo test -r $lastrunfile ); then
sudo_summary='sudo'
else
result 1 if [ -n "$SHOW_ERROR" ]
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@bill-mcgonigle Did you test this? I never saw this order in if statements in sh scripts. It reminds me of ruby style instead.
I was curious, so tested this:

$ echo yes if [ 1 -eq 1 ]
yes if [ 1 -eq 1 ]
$ echo yes if [ -z "$thing" ]
yes if [ -z  ]
$ thing=hooray
$ echo yes if [ -n "$thing" ]
yes if [ -n hooray ]

This leads me to the suspicion this would execute the result function with 1 if [ -n <the contents of $SHOW_ERROR here> ]. That is probably not what you intended.

fi
fi

# If the lastrunreport is not given as a param try to find it ourselves.
[ -z "$lastrunreport" ] && lastrunreport=$(parse_puppet_config "lastrunreport")
# Check if the lastrunreport is readable
[ -r "$lastrunreport" ] || result 12
# Check if state file exists.
[ -n "$SHOW_ERROR" ] && ( [ -s $lastrunreport -a -r $lastrunreport ] || result 12 )
# Check if lastrunreport exists.
if ( [ ! -s $lastrunreport ] || [ ! -r $lastrunreport ] ); then
if ( sudo test -s $lastrunreport && sudo test -r $lastrunreport ); then
sudo_report='sudo'
else
result 12 if [ -n "$SHOW_ERROR" ]
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Same as above.

fi
fi

# Check if daemonized was set, else set default to 1.
[ -n "$daemonized" ] || daemonized=1
Expand Down Expand Up @@ -320,7 +344,7 @@ if [ -n "$SHOW_ERROR" ] ; then
fi

# If the last run failed to retrieve the catalog from the server
grep -q 'Could not retrieve catalog from remote server' $lastrunreport && result 13
$sudo_report grep -q 'Could not retrieve catalog from remote server' $lastrunreport && result 13

# Check when last run happened.
last_run=$_time_last_run
Expand Down