mirror of
https://github.com/limosek/zaf.git
synced 2024-11-21 18:09:06 +01:00
276 lines
5.9 KiB
Bash
276 lines
5.9 KiB
Bash
|
|
# Hardcoded variables
|
|
ZAF_VERSION="1.3"
|
|
ZAF_GITBRANCH="master"
|
|
ZAF_URL="https://github.com/limosek/zaf"
|
|
ZAF_RAW_URL="https://raw.githubusercontent.com/limosek/zaf"
|
|
|
|
############################################ Common routines
|
|
|
|
zaf_msg() {
|
|
echo $@
|
|
}
|
|
zaf_trc() {
|
|
[ "$ZAF_DEBUG" -ge "3" ] && logger -p user.info ${ZAF_LOG_STDERR} -t zaf-trace -- $@
|
|
}
|
|
zaf_dbg() {
|
|
[ "$ZAF_DEBUG" -ge "2" ] && logger -p user.debug ${ZAF_LOG_STDERR} -t zaf-debug -- $@
|
|
}
|
|
zaf_wrn() {
|
|
[ "$ZAF_DEBUG" -ge "1" ] && logger -p user.warn ${ZAF_LOG_STDERR} -t zaf-warning -- $@
|
|
}
|
|
zaf_err() {
|
|
logger ${ZAF_LOG_STDERR} -p user.err -t zaf-error -- $@
|
|
logger ${ZAF_LOG_STDERR} -p user.err -t zaf-error "Exiting with error!"
|
|
exit 1
|
|
}
|
|
# Help option
|
|
# $1 - key
|
|
# $2 -
|
|
zaf_hlp() {
|
|
local kl
|
|
local dl
|
|
local cols
|
|
|
|
cols=$COLUMNS
|
|
[ -z "$cols" ] && cols=120
|
|
kl=$(expr $cols / 3)
|
|
dl=$(expr $cols - $kl)
|
|
printf %-${kl}s%-${dl}s%b "$1" "$2" "\n"
|
|
}
|
|
# $1 if nonempty, log to stderr too
|
|
zaf_debug_init() {
|
|
[ -z "$ZAF_DEBUG" ] && ZAF_DEBUG=1
|
|
export ZAF_DEBUG
|
|
[ -n "$1" ] && export ZAF_LOG_STDERR="-s"
|
|
}
|
|
|
|
zaf_tmp_init() {
|
|
[ -z "$ZAF_TMP_DIR" ] && ZAF_TMP_DIR=/tmp/
|
|
! [ -w "$ZAF_TMP_DIR" ] && zaf_err "Tmp dir $ZAF_TMP_DIR is not writable."
|
|
}
|
|
|
|
zaf_version(){
|
|
echo $ZAF_VERSION
|
|
}
|
|
|
|
# Add parameter for agent check
|
|
# $1 parameter name (will be set to var)
|
|
# $2 if nonempty, it is default value. If empty, parameter is mandatory
|
|
# $3 if nonempty, regexp to test
|
|
zaf_agentparm(){
|
|
local name
|
|
local default
|
|
local regexp
|
|
|
|
name="$1"
|
|
default="$2"
|
|
regexp="$3"
|
|
|
|
[ -z "$value" ] && [ -z "$default" ] && zaf_err "$ITEM_KEY: Missing mandatory parameter $name."
|
|
if [ -z "$value" ]; then
|
|
value="$default"
|
|
else
|
|
if [ -n "$regexp" ]; then
|
|
echo "$value" | grep -qE "$regexp" || zaf_err "$ITEM_KEY: Bad parameter '$name' value '$value' (not in regexp '$regexp')."
|
|
fi
|
|
fi
|
|
eval $name=$value
|
|
zaf_trc "$ITEM_KEY: Param $name set to $value"
|
|
}
|
|
|
|
# Fetch url to stdout
|
|
# $1 url
|
|
# It supports real file, file:// and other schemes known by curl
|
|
zaf_fetch_url() {
|
|
local scheme
|
|
local uri
|
|
local insecure
|
|
local out
|
|
|
|
if zaf_fromcache "$1"; then
|
|
return
|
|
fi
|
|
scheme=$(echo $1|cut -d ':' -f 1)
|
|
uri=$(echo $1|cut -d '/' -f 3-)
|
|
if [ "$1" = "$scheme" ]; then
|
|
cat "$1"
|
|
fi
|
|
case $scheme in
|
|
http|https|ftp|file)
|
|
[ "$scheme" != "file" ] && [ -n "$ZAF_OFFLINE" ] && zaf_err "Cannot download $1 in offline mode!"
|
|
[ "${ZAF_CURL_INSECURE}" = "1" ] && insecure="-k"
|
|
zaf_dbg curl $insecure -f -s -L -o - $1
|
|
curl $insecure -f -s -L -o - "$1" | zaf_tocache_stdin "$1" 120
|
|
;;
|
|
esac
|
|
}
|
|
|
|
# Find and replace string
|
|
zaf_far(){
|
|
local f
|
|
local t
|
|
local sedcmd="sed"
|
|
i=1
|
|
while [ "$i" -lt "$#" ];
|
|
do
|
|
eval f=\$${i}
|
|
i=$(expr $i + 1)
|
|
eval t=\$${i}
|
|
i=$(expr $i + 1)
|
|
sedcmd="$sedcmd -e 's~$f~$t~g'"
|
|
done
|
|
eval $sedcmd
|
|
}
|
|
|
|
# Limit concurrent processes or continue
|
|
zaf_bglimit(){
|
|
local maxbg
|
|
local maxnumber
|
|
local cnumber
|
|
[ -z "$BASH_VERSION" ] && { zaf_dbg "Job server not available. Use bash!"; return 1; }
|
|
if [ $# -eq 0 ] ; then
|
|
maxbg=5
|
|
else
|
|
maxbg=$1
|
|
fi
|
|
maxnumber=$((0 + ${1:-0}))
|
|
while true; do
|
|
cnumber=$(jobs | wc -l)
|
|
if [ $cnumber -lt $maxnumber ]; then
|
|
break
|
|
fi
|
|
zaf_dbg "Limiting next job due to $maxbg limit of bg jobs"
|
|
sleep 1
|
|
done
|
|
}
|
|
|
|
# Initialises discovery function
|
|
zaf_discovery_begin(){
|
|
cat <<EOF
|
|
{
|
|
"data":[
|
|
EOF
|
|
}
|
|
|
|
# Add row(s) to discovery data
|
|
zaf_discovery_add_row(){
|
|
local rows
|
|
local row
|
|
|
|
rows=$1
|
|
row=$2
|
|
shift;shift
|
|
echo " {"
|
|
while [ -n "$1" ]; do
|
|
echo -n ' "'$1'":"'$2'" '
|
|
shift;shift
|
|
if [ -n "$1" ]; then
|
|
echo ","
|
|
else
|
|
echo ""
|
|
fi
|
|
done
|
|
if [ "$row" -lt "$rows" ]; then
|
|
echo " },"
|
|
else
|
|
echo " }"
|
|
fi
|
|
}
|
|
|
|
# Dumps json object
|
|
zaf_discovery_end(){
|
|
cat <<EOF
|
|
]
|
|
}
|
|
EOF
|
|
}
|
|
|
|
# Read standard input as discovery data. Columns are divided by space.
|
|
# Arguments are name of variables to discovery.
|
|
# Dumps json to stdout
|
|
zaf_discovery(){
|
|
local tmpfile
|
|
local rows
|
|
local a b c d e f g h i j row
|
|
|
|
tmpfile="${ZAF_TMP_DIR}/disc$$"
|
|
cat >$tmpfile
|
|
rows=$(wc -l <$tmpfile)
|
|
local a b c d e f g h i j;
|
|
zaf_discovery_begin
|
|
row=1
|
|
while read a b c d e f g h i j; do
|
|
zaf_discovery_add_row "$rows" "$row" "$1" "${1:+${a}}" "$2" "${2:+${b}}" "$3" "${3:+${c}}" "$4" "${4:+${d}}" "$5" "${5:+${e}}" "$6" "${6:+${f}}" "$7" "${7:+${g}}" "$8" "${8:+${h}}" "$9" "${9:+${i}}"
|
|
row=$(expr $row + 1)
|
|
done <$tmpfile
|
|
zaf_discovery_end
|
|
rm -f $tmpfile
|
|
}
|
|
|
|
############################################ Zaf internal routines
|
|
|
|
# Restart zabbix agent
|
|
zaf_restart_agent() {
|
|
zaf_wrn "Restarting agent (${ZAF_AGENT_RESTART})"
|
|
${ZAF_AGENT_RESTART} || zaf_err "Cannot restart Zabbix agent (${ZAF_AGENT_RESTART}). Try $ZAF_AGENT_BIN -f !";
|
|
}
|
|
|
|
# Check if zaf.version item is populated
|
|
zaf_check_agent_config() {
|
|
zaf_restart_agent
|
|
${ZAF_AGENT_BIN} -t zaf.version
|
|
}
|
|
|
|
zaf_tolower() {
|
|
tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'
|
|
}
|
|
|
|
zaf_toupper() {
|
|
tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
|
|
}
|
|
|
|
# Return simplified key with discarded special chars.
|
|
zaf_stripctrl() {
|
|
echo $1 | tr '[]*&;:.-' '________'
|
|
}
|
|
|
|
# Unescape string on stdin
|
|
# $1 - list of chars to unescape
|
|
zaf_strunescape() {
|
|
sed -e 's#\\\(['"$1"']\)#\1#g'
|
|
}
|
|
|
|
# Escape string on stdin
|
|
# $1 - list of chars to escape
|
|
zaf_strescape() {
|
|
sed -e 's#\(['"$1"']\)#\\\1#g'
|
|
}
|
|
|
|
# Add seconds to current date and return date in YYYY-MM-DD hh:mm:ss
|
|
# $1 seconds
|
|
zaf_date_add() {
|
|
date -d "$1 seconds" "+%Y-%m-%d %H:%M:%S" 2>/dev/null || date -d "$(expr $(date +%s) + $1)" -D %s "+%Y-%m-%d %H:%M:%S"
|
|
}
|
|
|
|
# Create temp file and return its name
|
|
# $1 prefix or empty
|
|
zaf_tmpfile() {
|
|
echo "$ZAF_TMP_DIR/tmp$1"
|
|
}
|
|
|
|
# return random number
|
|
zaf_random() {
|
|
hexdump -n 2 -e '/2 "%u"' /dev/urandom
|
|
}
|
|
|
|
# Emulate sudo
|
|
zaf_sudo() {
|
|
if zaf_is_root || ! zaf_which sudo >/dev/null 2>/dev/null; then
|
|
$@
|
|
else
|
|
sudo $@
|
|
fi
|
|
}
|
|
|