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Document the new lslocks blocking processing. Add standalong installer
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,202 @@ | ||
| #!/bin/bash | ||
| # install_lslocks.sh | ||
| # Installs the following: monitor_metrics.py and its wrapper monitor_wrapper.sh | ||
| # | ||
| # Can be done for SDP or non-SDP. | ||
| # | ||
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| # shellcheck disable=SC2128 | ||
| if [[ -z "${BASH_VERSINFO}" ]] || [[ -z "${BASH_VERSINFO[0]}" ]] || [[ ${BASH_VERSINFO[0]} -lt 4 ]]; then | ||
| echo "This script requires Bash version >= 4"; | ||
| exit 1; | ||
| fi | ||
|
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| # ============================================================ | ||
| # Configuration section | ||
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| # This might also be /hxlogs/metrics or passed as a parameter (with -m flag) | ||
| metrics_root=/hxlogs/metrics | ||
|
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| # ============================================================ | ||
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| function msg () { echo -e "$*"; } | ||
| function bail () { msg "\nError: ${1:-Unknown Error}\n"; exit "${2:-1}"; } | ||
|
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| function usage | ||
| { | ||
| declare errorMessage=${2:-Unset} | ||
|
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| if [[ "$errorMessage" != Unset ]]; then | ||
| echo -e "\\n\\nUsage Error:\\n\\n$errorMessage\\n\\n" >&2 | ||
| fi | ||
|
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| echo "USAGE for install_lslocks.sh: | ||
| install_lslocks.sh [<instance> | -nosdp] [-m <metrics_root>] [-osuser <osuser>] | ||
| [-p <P4PORT>] [-u <p4user>] | ||
| or | ||
| install_lslocks.sh -h | ||
| <metrics_root> is the directory where metrics will be written - default: $metrics_root | ||
| <osuser> Operating system user, e.g. perforce, under which p4d process is running and to install crontab | ||
| <P4PORT> P4PORT to use within any installed scripts | ||
| <P4USER> P4USER to use within any installed scripts | ||
| IMPORTANT: Specify either the SDP instance (e.g. 1), or -nosdp and other parameters | ||
| WARNING: If using -nosdp, then please ensure P4PORT and P4USER are provided or are appropriately set and that you can connect | ||
| to your server (e.g. you have done a 'p4 trust' if required, and logged in already) | ||
| Examples: | ||
| ./install_lslocks.sh 1 | ||
| ./install_lslocks.sh -nosdp -osuser perforce -m /p4metrics -p 1666 -u p4admin | ||
| " | ||
| } | ||
|
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| # Command Line Processing | ||
|
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| declare -i shiftArgs=0 | ||
| declare -i UseSDP=1 | ||
| declare -i SELinuxEnabled=0 | ||
| declare -i InstallPushgateway=0 | ||
| declare OsUser="" | ||
| declare p4port="" | ||
| declare p4user="" | ||
|
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||
| set +u | ||
| while [[ $# -gt 0 ]]; do | ||
| case $1 in | ||
| (-h) usage -h && exit 1;; | ||
| # (-man) usage -man;; | ||
| (-nosdp) UseSDP=0;; | ||
| (-m) metrics_root=$2; shiftArgs=1;; | ||
| (-osuser) OsUser="$2"; shiftArgs=1;; | ||
| (-p) p4port="$2"; shiftArgs=1;; | ||
| (-u) p4user="$2"; shiftArgs=1;; | ||
| (-*) usage -h "Unknown command line option ($1)." && exit 1;; | ||
| (*) export SDP_INSTANCE=$1;; | ||
| esac | ||
|
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||
| # Shift (modify $#) the appropriate number of times. | ||
| shift; while [[ "$shiftArgs" -gt 0 ]]; do | ||
| [[ $# -eq 0 ]] && usage -h "Incorrect number of arguments." | ||
| shiftArgs=$shiftArgs-1 | ||
| shift | ||
| done | ||
| done | ||
| set -u | ||
|
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||
| if [[ $(id -u) -ne 0 ]]; then | ||
| echo "$0 can only be run as root or via sudo" | ||
| exit 1 | ||
| fi | ||
|
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| wget=$(which wget) | ||
| [[ $? -eq 0 ]] || bail "Failed to find wget in path" | ||
|
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| if command -v getenforce > /dev/null; then | ||
| selinux=$(getenforce) | ||
| [[ "$selinux" == "Enforcing" ]] && SELinuxEnabled=1 | ||
| fi | ||
|
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||
| if [[ $UseSDP -eq 1 ]]; then | ||
| SDP_INSTANCE=${SDP_INSTANCE:-Unset} | ||
| SDP_INSTANCE=${1:-$SDP_INSTANCE} | ||
| if [[ $SDP_INSTANCE == Unset ]]; then | ||
| echo -e "\\nError: Instance parameter not supplied.\\n" | ||
| echo "You must supply the Perforce SDP instance as a parameter to this script. E.g." | ||
| echo " install_lslocks.sh 1" | ||
| exit 1 | ||
| fi | ||
|
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||
| # Find OSGROUP for ownership permissions - group of /p4 dir itself | ||
| # shellcheck disable=SC2010 | ||
| OSGROUP=$(ls -al /p4/ | grep -E '\.$' | head -1 | awk '{print $4}') | ||
|
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| # Load SDP controlled shell environment. | ||
| # shellcheck disable=SC1091 | ||
| source /p4/common/bin/p4_vars "$SDP_INSTANCE" ||\ | ||
| { echo -e "\\nError: Failed to load SDP environment.\\n"; exit 1; } | ||
|
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| p4="$P4BIN -u $P4USER -p $P4PORT" | ||
| $p4 info -s || bail "Can't connect to P4PORT: $P4PORT" | ||
| config_dir="/p4/common/config" | ||
| bin_dir="/p4/common/site/bin" | ||
| else | ||
| SDP_INSTANCE="" | ||
| p4port=${p4port:-$P4PORT} | ||
| p4user=${p4user:-$P4USER} | ||
| OSUSER="$OsUser" | ||
| OSGROUP=$(id -gn "$OSUSER") | ||
| p4="p4 -u $p4user -p $p4port" | ||
| $p4 info -s || bail "Can't connect to P4PORT: $p4 info -s" | ||
| $p4 login -s || bail "Error - can't run: $p4 login -s" | ||
| P4PORT=$p4port | ||
| P4USER=$p4user | ||
| config_dir=${config_dir:-"/etc/p4prometheus"} | ||
| bin_dir="$config_dir" | ||
| mkdir -p "$config_dir" | ||
| chown "$OSUSER:$OSGROUP" "$config_dir" | ||
| fi | ||
|
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||
| download_and_untar () { | ||
| fname=$1 | ||
| url=$2 | ||
| [[ -f "$fname" ]] && rm -f "$fname" | ||
| msg "downloading and extracting $url" | ||
| wget -q "$url" | ||
| tar zxvf "$fname" | ||
| } | ||
|
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| install_monitor_metrics () { | ||
|
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| if [[ $UseSDP -eq 1 ]]; then | ||
| cron_args="$SDP_INSTANCE" | ||
| else | ||
| cron_args="-p $P4PORT -u $P4USER -nosdp -m $metrics_root" | ||
| fi | ||
| mon_installer="/tmp/_install_mon.sh" | ||
| cat << EOF > $mon_installer | ||
| # Download latest versions | ||
| mkdir -p $bin_dir | ||
| cd $bin_dir | ||
| for scriptname in monitor_metrics.py monitor_wrapper.sh; do | ||
| [[ -f "\$scriptname" ]] && rm "\$scriptname" | ||
| echo "downloading \$scriptname" | ||
| wget "https://raw.githubusercontent.com/perforce/p4prometheus/master/scripts/\$scriptname" | ||
| chmod +x "\$scriptname" | ||
| chown "$OSUSER:$OSGROUP" "\$scriptname" | ||
| done | ||
| # Install in crontab if required | ||
| mytab="/tmp/mycron" | ||
| scriptname="monitor_wrapper.sh" | ||
| if ! grep -q "\$scriptname" "\$mytab" ;then | ||
| entry1="*/1 * * * * $bin_dir/\$scriptname $cron_args > /dev/null 2>&1 ||:" | ||
| echo "\$entry1" >> "\$mytab" | ||
| fi | ||
| crontab "\$mytab" | ||
| # List things out for review | ||
| echo "Crontab after updating - showing monitor entries:" | ||
| crontab -l | grep /monitor_ | ||
| EOF | ||
|
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| chmod 755 "$mon_installer" | ||
| sudo -u "$OSUSER" bash "$mon_installer" | ||
|
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||
| } | ||
|
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| install_monitor_metrics | ||
|
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| echo " | ||
| Should have installed monitor_metrics.py and wrapper script. | ||
| Check crontab -l output above (as user $OSUSER) | ||
| " |