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npmDiag.sh
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#!/usr/bin/bash
###--- GENERAL FUNCTIONS ---###
environmentCheck() {
if [[ -f /etc/default/ktranslate.env ]]; then
installMethod="BAREMETAL"
elif [[ $(command -v docker) ]]; then
if [[ $(docker ps -a --format '{{.Image}}' | grep 'ktranslate') ]]; then
installMethod="DOCKER"
fi
elif [[ $(command -v podman) ]]; then
if [[ $(podman ps -a --format '{{.Image}}' | grep 'ktranslate') ]]; then
installMethod="PODMAN"
fi
else
installMethod="UNKNOWN"
fi
}
rootCheck() {
# Checks for root user
if [ "$EUID" -ne 0 ]; then
echo "Please run this script as root or with sudo to use this function."
exit 0
fi
}
showHelpMenu() {
echo ""
echo "Usage: npmDiag [--collect|--time|--help] {--installMethod [DOCKER|PODMAN|BAREMETAL]}"
echo ""
echo " --collect: Collects diagnostic info from containers. Outputs a zip file called 'npmDiag-output.zip'"
echo " --time: Run 'snmpwalk' against a device from the config. Outputs how long it takes to complete. Useful for calculating timeout settings."
echo " --help: Shows this help message."
echo ""
echo "In the event npmDiag can't determine what installation method you've used, you can override the auto-discovery by using '--installMethod'"
echo "followed by the deployment method (DOCKER, PODMAN, or BAREMETAL)."
}
# Other menu functions have a few differences between them but this menu is used four times, so it's been turned into a function to reduce repeated code
deviceLevelContainerSelectMenu() {
# Forces selection to be space-delimited list of integers, or a 'q' to exit
# Outputs `menuSelectedOption` array
menuLoopExit=false
while [[ "$menuLoopExit" == false ]]; do
echo ""
echo "Enter the number associated with the container monitoring your device"
read -ep "You can also use 'q' to exit the script > " menuSelection
if [[ "$menuSelection" =~ ^[0-9]+$ ]]; then
if [[ "$menuSelection" -ge "${#ktranslateContainerIDs[@]}" ]]; then
echo ""
echo "Container selection must be an integer shown in the listed options."
menuLoopExit=false
unset menuSelection
else
targetContainerID="${ktranslateContainerIDs[$menuSelection]}"
menuLoopExit=true
unset menuSelection
fi
elif [[ "${menuSelection,,}" = "q" ]]; then
echo ""
echo "Exiting..."
exit 0
else
echo ""
echo "Selection must be an integer, or a 'q' to exit"
fi
done
}
###--- COLLECT FUNCTIONS ---###
containerCollectPreReqCheck() {
# Checks host for package dependencies
if [[ ! $(command -v jq) || ! $(command -v zip) ]]; then
echo "A package dependency is missing from the host."
echo "Please ensure that both 'jq' and 'zip' are installed."
echo ""
echo "'jq' and 'zip' can be installed with 'sudo apt install jq zip -y' on Ubuntu"
echo "or with 'sudo yum install jq zip -y' on RHEL/CentOS"
echo ""
echo "If the 'jq' package can't be found on RHEL/CentOS, see:"
echo "https://github.com/newrelic-experimental/newrelic-npm-diagnostics?tab=readme-ov-file#installation"
exit 0
fi
}
baremetalCollectPreReqCheck() {
if [[ ! $(command -v zip) ]]; then
echo "A package dependency is missing from the host."
echo "Please ensure that 'zip' is installed."
echo ""
echo "'zip' can be installed with 'sudo apt install zip -y' on Ubuntu"
echo "or with 'sudo yum install zip -y' on RHEL/CentOS"
exit 0
fi
}
dockerCollectRoutine() {
# Finds container IDs using Ktranslate image. Adds them to `foundContainerIDs` array.
readarray -t allContainerIDs < <(docker ps -aq)
for i in "${allContainerIDs[@]}"; do
if [[ $(docker inspect "$i" | jq -r '.[] | .Config | .User') == 'ktranslate' ]]; then
foundContainerIDs+=("$i")
fi
done
# Displays menu and allows container selection.
echo "=-=-=-=-=-=-=-=-=-=-="
for i in "${!foundContainerIDs[@]}"; do
echo "[$i] $(docker inspect "${foundContainerIDs[i]}" | jq -r '.[] | .Name' | sed 's/^\///')"
done
echo ""
echo "[q] Exit npmDiag"
echo "=-=-=-=-=-=-=-=-=-=-="
# Forces selection to be space-delimited list of integers, or a 'q' to exit
# Outputs `menuSelectedOption` array
menuLoopExit=false
while [[ "$menuLoopExit" == false ]]; do
echo ""
echo "Enter space-delimited list of containers you want diagnostic data from (0 1 2...)"
read -ep "You can also use 'q' to exit the script > " menuSelection
if [[ "$menuSelection" =~ ^[0-9]+($|[[:space:]]|[0-9]+){1,}$ ]]; then
read -a menuSelectedOption <<< "$menuSelection"
for i in "${menuSelectedOption[@]}"; do
if [[ "$i" -ge "${#foundContainerIDs[@]}" ]]; then
echo ""
echo "Container selection must include only integers shown in the listed options."
menuLoopExit=false
unset menuSelectedOption
break
else
menuLoopExit=true
fi
done
elif [[ "${menuSelection,,}" = "q" ]]; then
echo ""
echo "Exiting..."
exit 0
else
echo ""
echo "Selection must be a space-delimited list of integers, or a 'q' to exit"
fi
done
# Parses menu selection. Builds `targetContainerIDs` array.
for i in "${menuSelectedOption[@]}"; do
targetContainerIDs+=("${foundContainerIDs[i]}")
done
# Creates working directory in `/tmp`.
tmpFolderName="npmDiag-$(date +%s)"
mkdir /tmp/"$tmpFolderName"
for i in "${targetContainerIDs[@]}"; do
targetContainerName=$(docker inspect "$i" | jq -r '.[] | .Name' | sed 's/^\///')
targetContainerID=$(docker inspect "$i" | jq -r '.[] | .Id')
# Gets config files for each container. Copies to a `/tmp` working folder. Renames with Docker container long ID.
for configFiles in $(docker inspect "$i" | jq -r '.[] | .Mounts | .[] | .Source'); do
if [ -d "$configFiles" ]; then
cp -r "$configFiles" /tmp/"$tmpFolderName"/"$targetContainerID"-$(basename "$configFiles")
else
cp "$configFiles" /tmp/"$tmpFolderName"/"$targetContainerID"-$(basename "$configFiles")
fi
done
# Restarts container to regenerate logs. Sends to a `/tmp` working folder.
echo ""
echo "Stopping $targetContainerName"
docker stop "$i" > /dev/null
echo -e "\n------------\n ____ _ \n _ __ _ __ _ __ ___ | _ \\(_) __ _ __ _ \n | '_ \| '_ \| '_ \` _ \| | | | |/ _\` |/ _\` |\n | | | | |_) | | | | | | |_| | | (_| | (_| |\n |_| |_| .__/|_| |_| |_|____/|_|\\__,_|\\__, |\n |_| |___/ \n\n" >> $(docker inspect "$i" | jq -r '.[] | .LogPath')
echo "Refreshing log file..."
docker start "$i" > /dev/null
# Sleeps script for 3 minutes to allow container logs to regenerate
timer=180
while [[ "$timer" -gt 0 ]]; do
minutes=$((timer / 60))
seconds=$((timer % 60))
printf "\rTime remaining: %02d:%02d" $minutes $seconds
sleep 1
timer=$((timer - 1))
done
printf "\rTime remaining: %02d:%02d\n" 0
echo "Done recreating logs for $targetContainerName"
docker logs "$i" > /tmp/"$tmpFolderName"/"$targetContainerID".log
# Gets `inspect` for each container. Copies to a `/tmp` working folder.
docker inspect "$i" > /tmp/"$tmpFolderName"/"$targetContainerID"-"$targetContainerName".dockerInspect.out
# Unsets `target` variables for next collection execution
unset targetContainerName
unset targetContainerID
done
}
podmanCollectRoutine() {
# Finds container IDs using Ktranslate image. Adds them to `foundContainerIDs` array.
readarray -t allContainerIDs < <(podman ps -aq)
for i in "${allContainerIDs[@]}"; do
if [[ $(podman inspect "$i" | jq -r '.[] | .Config | .User') == 'ktranslate' ]]; then
foundContainerIDs+=("$i")
fi
done
# Displays menu and allows container selection.
echo "=-=-=-=-=-=-=-=-=-=-="
for i in "${!foundContainerIDs[@]}"; do
echo "[$i] $(podman inspect "${foundContainerIDs[i]}" | jq -r '.[] | .Name' | sed 's/^\///')"
done
echo ""
echo "[q] Exit npmDiag"
echo "=-=-=-=-=-=-=-=-=-=-="
# Forces selection to be space-delimited list of integers, or a 'q' to exit
# Outputs `menuSelectedOption` array
menuLoopExit=false
while [[ "$menuLoopExit" == false ]]; do
echo ""
echo "Enter space-delimited list of containers you want diagnostic data from (0 1 2...)"
read -ep "You can also use 'q' to exit the script > " menuSelection
if [[ "$menuSelection" =~ ^[0-9]+($|[[:space:]]|[0-9]+){1,}$ ]]; then
read -a menuSelectedOption <<< "$menuSelection"
for i in "${menuSelectedOption[@]}"; do
if [[ "$i" -ge "${#foundContainerIDs[@]}" ]]; then
echo ""
echo "Container selection must include only integers shown in the listed options."
menuLoopExit=false
unset menuSelectedOption
break
else
menuLoopExit=true
fi
done
elif [[ "${menuSelection,,}" = "q" ]]; then
echo ""
echo "Exiting..."
exit 0
else
echo ""
echo "Selection must be a space-delimited list of integers, or a 'q' to exit"
fi
done
# Parses menu selection. Builds `targetContainerIDs` array.
for i in "${menuSelectedOption[@]}"; do
targetContainerIDs+=("${foundContainerIDs[i]}")
done
# Creates working directory in `/tmp`.
tmpFolderName="npmDiag-$(date +%s)"
mkdir /tmp/"$tmpFolderName"
for i in "${targetContainerIDs[@]}"; do
targetContainerName=$(podman inspect "$i" | jq -r '.[] | .Name' | sed 's/^\///')
targetContainerID=$(podman inspect "$i" | jq -r '.[] | .Id')
# Gets config files for each container. Copies to a `/tmp` working folder. Renames with Docker container long ID.
for configFiles in $(podman inspect "$i" | jq -r '.[] | .Mounts | .[] | .Source'); do
if [ -d "$configFiles" ]; then
cp -r "$configFiles" /tmp/"$tmpFolderName"/"$targetContainerID"-$(basename "$configFiles")
else
cp "$configFiles" /tmp/"$tmpFolderName"/"$targetContainerID"-$(basename "$configFiles")
fi
done
# Restarts container to regenerate logs. Sends to a `/tmp` working folder.
echo ""
echo "Stopping $targetContainerName"
podman stop "$i" > /dev/null
echo "Refreshing log file..."
podman start "$i" > /dev/null
# Sleeps script for 3 minutes to allow container logs to regenerate
timer=180
while [[ "$timer" -gt 0 ]]; do
minutes=$((timer / 60))
seconds=$((timer % 60))
printf "\rTime remaining: %02d:%02d" $minutes $seconds
sleep 1
timer=$((timer - 1))
done
printf "\rTime remaining: %02d:%02d\n" 0
echo "Done recreating logs for $targetContainerName"
podman logs "$i" > /tmp/"$tmpFolderName"/"$targetContainerID".log
# Gets `inspect` for each container. Copies to a `/tmp` working folder.
podman inspect "$i" > /tmp/"$tmpFolderName"/"$targetContainerID"-"$targetContainerName".podmanInspect.out
# Unsets `target` variables for next collection execution
unset targetContainerName
unset targetContainerID
done
}
baremetalCollectRoutine() {
# Creates working directory in `/tmp`.
tmpFolderName="npmDiag-$(date +%s)"
mkdir /tmp/"$tmpFolderName"
# Grabs related files
cp /etc/default/ktranslate.env /tmp/"$tmpFolderName"/ktranslate.env
cp $(grep -- '-snmp' /etc/default/ktranslate.env | awk '{print $2}') /tmp/"$tmpFolderName"/$(grep -- '-snmp' /etc/default/ktranslate.env | awk '{print $2}' | xargs basename)
# Switch to rsync for this so we don't pick up junk from GitHub
rsync -a --exclude='.git' /etc/ktranslate/profiles /tmp/"$tmpFolderName"
# Restarts the service to regenerate logs. Sends to a `/tmp` working folder
systemctl stop ktranslate.service
echo -e "\n------------\n ____ _ \n _ __ _ __ _ __ ___ | _ \\(_) __ _ __ _ \n | '_ \| '_ \| '_ \` _ \| | | | |/ _\` |/ _\` |\n | | | | |_) | | | | | | |_| | | (_| | (_| |\n |_| |_| .__/|_| |_| |_|____/|_|\\__,_|\\__, |\n |_| |___/ \n\n" >> /var/log/syslog
echo "Refreshing log file..."
systemctl start ktranslate.service
# Sleeps script for 3 minutes to allow container logs to regenerate
timer=180
while [[ "$timer" -gt 0 ]]; do
minutes=$((timer / 60))
seconds=$((timer % 60))
printf "\rTime remaining: %02d:%02d" $minutes $seconds
sleep 1
timer=$((timer - 1))
done
printf "\rTime remaining: %02d:%02d\n" 0
echo "Done recreating service logs"
cat /var/log/syslog | grep ktranslate > /tmp/"$tmpFolderName"/ktranslate.service.log
}
diagZip() {
# Bundles output files into zip file and places it in the current directory
activeDirectory=$(pwd)
outputFileName="npmDiag-output-$(date +%Y-%m-%d-%H-%M-%S).zip"
runByUsername=$(logname)
cd /tmp/"$tmpFolderName"
zip -qr "$activeDirectory"/"$outputFileName" ./*
cd "$activeDirectory"
chown "$runByUsername:$runByUsername" "$outputFileName"
chmod 666 "$outputFileName"
echo ""
echo "Created output file '"$outputFileName"' in working directory."
}
postCollectCleanup() {
# Deletes files from `/tmp`
rm -rd /tmp/"$tmpFolderName" > /dev/null 2>&1
}
###--- TIME FUNCTIONS ---###
containerTimePreReqCheck() {
# Checks host for package dependencies
if [[ ! $(command -v yq) || ! $(command -v jq) ]]; then
echo "A package dependency is missing from the host."
echo "Please ensure that both 'yq' and 'jq' are installed."
echo ""
echo "'yq' can be installed with 'sudo snap install yq'"
echo "or you can download a copy from GitHub using"
echo ""
echo "sudo wget https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64 -O /usr/bin/yq \\"
echo " && sudo chmod +x /usr/bin/yq"
echo ""
echo "'jq' can be installed with 'sudo apt install jq -y' on Ubuntu"
echo "or with 'sudo yum install jq -y' on RHEL/CentOS"
echo ""
echo "If the 'jq' package can't be found on RHEL/CentOS, see:"
echo "https://github.com/newrelic-experimental/newrelic-npm-diagnostics?tab=readme-ov-file#installation"
fi
}
baremetalTimePreReqCheck() {
# Checks host for package dependencies
if [[ ! $(command -v yq) ]]; then
echo "A package dependency is missing from the host."
echo "Please ensure that 'yq' is installed."
echo ""
echo "'yq' can be installed with 'sudo snap install yq'"
echo "You can also download a copy from GitHub using"
echo ""
echo "sudo wget https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64 -O /usr/bin/yq \\"
echo " && sudo chmod +x /usr/bin/yq"
echo ""
exit 0
fi
}
dockerTimeRoutine() {
# Finds container IDs using Ktranslate image. Adds them to `foundContainerIDs` array.
readarray -t allContainerIDs < <(docker ps -aq)
for i in "${allContainerIDs[@]}"; do
if [[ $(docker inspect "$i" | jq -r '.[] | .Config | .User') == 'ktranslate' ]]; then
ktranslateContainerIDs+=("$i")
fi
done
# Displays menu and allows container selection.
echo "=-=-=-=-=-=-=-=-=-=-="
for i in "${!ktranslateContainerIDs[@]}"; do
echo "[$i] $(docker inspect "${ktranslateContainerIDs[i]}" | jq -r '.[] | .Name' | sed 's/^\///')"
done
echo ""
echo "[q] Exit npmDiag"
echo "=-=-=-=-=-=-=-=-=-=-="
# Runs container selection menu for device-level functions
deviceLevelContainerSelectMenu
# Creates a temp directory for keeping configs and profiles in
timeTmpDir="/tmp/npmDiag-tmp-$(date +%s)"
mkdir -p "$timeTmpDir"
docker exec -u 0 "$targetContainerID" /bin/sh -c "cat /snmp-base.yaml" >> "$timeTmpDir/snmp-base.yaml"
configPath="$timeTmpDir/snmp-base.yaml"
deviceList=($(cat "$configPath" | yq e ".devices | to_entries[] | .key"))
# Displays menu and allows device selection
echo ""
echo "=-=-=-=-=-=-=-=-=-=-="
for i in "${!deviceList[@]}"; do
echo "[$i] ${deviceList[i]}"
done
echo ""
echo "[q] Exit npmDiag"
echo "=-=-=-=-=-=-=-=-=-=-="
# Forces selection to be an integer, or a q to exit
menuLoopExit=false
while [[ "$menuLoopExit" == false ]]; do
echo ""
echo "Enter the number of the device you want to time"
read -ep "You can also use 'q' to exit the script > " menuSelection
if [[ "$menuSelection" =~ ^[0-9]+$ ]]; then
if [[ "$menuSelection" -ge "${#deviceList[@]}" ]]; then
echo ""
echo "Device selection must be an integer shown in the listed options."
menuLoopExit=false
unset menuSelection
else
targetDevice="${deviceList[$menuSelection]}"
menuLoopExit=true
fi
elif [[ "${menuSelection,,}" = "q" ]]; then
echo ""
echo "Exiting..."
rm -rd "$timeTmpDir"
exit 0
else
echo ""
echo "Selection must be an integer, or a 'q' to exit"
fi
done
# Gets the assigned profile for a device
targetDeviceProfile=$(cat "$configPath" | yq e ".devices.\"$targetDevice\".mib_profile")
# Skip the OID retrieval process if no device profile is defined
if [[ -z "$targetDeviceProfile" ]]; then
echo ""
echo "SNMP profile not found for $targetDevice"
echo "Polling will not work without a profile being set"
echo "Exiting..."
rm -rd "$timeTmpDir"
exit 1
fi
# Grabs copy of device's assigned profile and saves it to a temp directory
docker exec -u 0 "$targetContainerID" /bin/sh -c "cat \$(find /etc/ktranslate -type f -name \"$targetDeviceProfile\")" >> "$timeTmpDir/$targetDeviceProfile"
profileLocation="$timeTmpDir/$targetDeviceProfile"
# Gets the `extends` block from the assigned profile - assigns to the $profileExtensions array
readarray -t profileExtensions < <(cat "$profileLocation" | yq e '.extends | to_entries[] .value')
# Grabs copies of device's extension profiles and saves them to a temp directory
for extension in "${profileExtensions[@]}"; do
docker exec -u 0 "$targetContainerID" /bin/sh -c "cat \$(find /etc/ktranslate -type f -name \"$extension\")" >> "$timeTmpDir/$extension"
profileExtensionsLocations+=("$timeTmpDir/$extension")
done
# Declares array for storing OIDs to poll
declare -a selectedOIDs
# Extract OIDs from a given YAML file
# Checks if new OID is contained within another discovered OID
# Prevents long walks (on the beach?) caused by polling whole tables
extract_oids() {
local file="$1"
local foundOIDs=($(cat "$file" | yq e '.. | select(has("OID")) | .OID' -))
local filteredOIDs=()
for unfilteredOID in "${foundOIDs[@]}"; do
# Only add OID to the filtered list if it is not a substring of any other OID
isSubOID=false
for comparisonOID in "${foundOIDs[@]}"; do
if [[ "$unfilteredOID" != "$comparisonOID" && "$comparisonOID" == *"$unfilteredOID"* ]]; then
# Checks that the substring is followed by a period, or is an exact match
if [[ "${comparisonOID:${#unfilteredOID}:1}" == "." || "${#comparisonOID}" == "${#unfilteredOID}" ]]; then
isSubOID=true
break
fi
fi
done
if [ "$isSubOID" = false ]; then
filteredOIDs+=("$unfilteredOID")
fi
done
echo "${filteredOIDs[@]}"
}
# Declaring this higher to capture additional output
timingOutputFile=./"$targetDevice"_timing_results-$(date +%s).txt
# Extract OIDs from primary profile
echo "" | tee -a "$timingOutputFile"
if [[ -f "$profileLocation" ]]; then
echo "Grabbing OIDs from assigned profile: $profileLocation" | tee -a "$timingOutputFile"
selectedOIDs+=($(extract_oids "$profileLocation"))
fi
# Extract OIDs from extension profiles
echo "" | tee -a "$timingOutputFile"
for profile in "${profileExtensionsLocations[@]}"; do
if [[ -f "$profile" ]]; then
echo "Grabbing OIDs from extension profile: $profile" | tee -a "$timingOutputFile"
selectedOIDs+=($(extract_oids "$profile"))
fi
done
echo "" | tee -a "$timingOutputFile"
# Retrieves SNMP credentials to determine if it's v1/v2c or v3
targetDeviceCommString=$(cat "$configPath" | yq e ".devices.\"$targetDevice\".snmp_comm" -)
targetDeviceV3Creds=$(cat "$configPath" | yq e ".devices.\"$targetDevice\".snmp_v3" -)
targetDeviceIP=$(cat "$configPath" | yq e ".devices.\"$targetDevice\".device_ip")
if [[ -n "$targetDeviceCommString" && "$targetDeviceCommString" != "null" ]]; then
echo "Device $targetDevice is using SNMP v1/v2c"
startTimeMs=$(date +%s%3N)
for oid in "${selectedOIDs[@]}"; do
timestamp=[$(date '+%Y-%m-%d %H:%M:%S,%3N')]
snmpOutput=$(snmpwalk -v 2c -On -c "$targetDeviceCommString" "$targetDeviceIP" ."$oid")
# 'Tee' buffers output and slows down loop, skewing results. Double 'echo' statement seems to avoid this issue
echo "$timestamp $snmpOutput"
echo "$timestamp $snmpOutput" >> "$timingOutputFile"
done
endTimeMs=$(date +%s%3N)
totalDuration=$(echo "scale=3; ($endTimeMs - $startTimeMs) / 1000" | bc)
echo "" | tee -a "$timingOutputFile"
echo "Total time to walk device's assigned profiles: ${totalDuration}s" | tee -a "$timingOutputFile"
echo ""
echo "Saved results to $timingOutputFile"
elif [[ -n "$targetDeviceV3Creds" && "$targetDeviceV3Creds" != "null" ]]; then
echo ""
echo "Device $targetDevice is using SNMP v3"
echo ""
v3UserName=$(echo "$targetDeviceV3Creds" | yq e '.user_name')
v3AuthProt=$(echo "$targetDeviceV3Creds" | yq e '.authentication_protocol')
v3AuthPass=$(echo "$targetDeviceV3Creds" | yq e '.authentication_passphrase')
v3PrivProt=$(echo "$targetDeviceV3Creds" | yq e '.privacy_protocol')
v3PrivPass=$(echo "$targetDeviceV3Creds" | yq e '.privacy_passphrase')
if [[ -n "$v3AuthProt" && "$v3AuthProt" != "null" && -n "$v3PrivProt" && "$v3PrivProt" != "null" ]]; then
v3Level=authPriv
elif [[ -n "$v3AuthProt" && "$v3AuthProt" != "null" && ( -z "$v3PrivProt" || "$v3PrivProt" == "null" ) ]]; then
v3Level=authNoPriv
elif [[ ( -z "$v3AuthProt" || "$v3AuthProt" == "null" ) && ( -z "$v3PrivProt" || "$v3PrivProt" == "null" ) ]]; then
v3Level=noAuthNoPriv
else
echo "Couldn't determine snmpwalk authentication level. Are 'snmp_v3.authentication_protocol' and 'snmp_v3.privacy_protocol' set for the device?"
rm -rd "$timeTmpDir"
exit 1
fi
startTimeMs=$(date +%s%3N)
for oid in "${selectedOIDs[@]}"; do
timestamp=[$(date '+%Y-%m-%d %H:%M:%S,%3N')]
snmpOutput=$(snmpwalk -v 3 -l "$v3Level" -u "$v3UserName" -a "$v3AuthProt" -A "$v3AuthPass" -x "$v3PrivProt" -X "$v3PrivPass" -ObentU -Cc "$targetDeviceIP" ."$oid")
# 'Tee' buffers output and slows down loop, skewing results. Double 'echo' statement seems to avoid this issue
echo "$timestamp $snmpOutput"
echo "$timestamp $snmpOutput" >> "$timingOutputFile"
done
endTimeMs=$(date +%s%3N)
totalDuration=$(echo "scale=3; ($endTimeMs - $startTimeMs) / 1000" | bc)
echo "" | tee -a "$timingOutputFile"
echo "Total time to walk device's assigned profiles: ${totalDuration}s" | tee -a "$timingOutputFile"
echo ""
echo "Saved results to $timingOutputFile"
else
echo "SNMP configuration not found for $targetDevice"
echo "Polling will not work against a device that does not have SNMP credentials configured"
echo "Check that your device has either '<deviceName>.snmp_comm' or <deviceName>.snmp_v3[]' set"
echo "Exiting..."
rm -rd "$timeTmpDir"
rm "$timingOutputFile"
exit 1
fi
rm -rd "$timeTmpDir"
}
podmanTimeRoutine() {
# Finds container IDs using Ktranslate image. Adds them to `foundContainerIDs` array.
readarray -t allContainerIDs < <(podman ps -aq)
for i in "${allContainerIDs[@]}"; do
if [[ $(podman inspect "$i" | jq -r '.[] | .Config | .User') == 'ktranslate' ]]; then
ktranslateContainerIDs+=("$i")
fi
done
# Displays menu and allows container selection.
echo "=-=-=-=-=-=-=-=-=-=-="
for i in "${!ktranslateContainerIDs[@]}"; do
echo "[$i] $(podman inspect "${ktranslateContainerIDs[i]}" | jq -r '.[] | .Name')"
done
echo ""
echo "[q] Exit npmDiag"
echo "=-=-=-=-=-=-=-=-=-=-="
# Runs container selection menu for device-level functions
deviceLevelContainerSelectMenu
# Creates a temp directory for keeping configs and profiles in
timeTmpDir="/tmp/npmDiag-tmp-$(date +%s)"
mkdir -p "$timeTmpDir"
podman exec "$targetContainerID" /bin/sh -c "cat /snmp-base.yaml" >> "$timeTmpDir/snmp-base.yaml"
configPath="$timeTmpDir/snmp-base.yaml"
deviceList=($(cat "$configPath" | yq e ".devices | to_entries[] | .key"))
# Displays menu and allows device selection
echo ""
echo "=-=-=-=-=-=-=-=-=-=-="
for i in "${!deviceList[@]}"; do
echo "[$i] ${deviceList[i]}"
done
echo ""
echo "[q] Exit npmDiag"
echo "=-=-=-=-=-=-=-=-=-=-="
# Forces selection to be an integer, or a q to exit
menuLoopExit=false
while [[ "$menuLoopExit" == false ]]; do
echo ""
echo "Enter the number of the device you want to time"
read -ep "You can also use 'q' to exit the script > " menuSelection
if [[ "$menuSelection" =~ ^[0-9]+$ ]]; then
if [[ "$menuSelection" -ge "${#deviceList[@]}" ]]; then
echo ""
echo "Device selection must be an integer shown in the listed options."
menuLoopExit=false
unset menuSelection
else
targetDevice="${deviceList[$menuSelection]}"
menuLoopExit=true
fi
elif [[ "${menuSelection,,}" = "q" ]]; then
echo ""
echo "Exiting..."
rm -rd "$timeTmpDir"
exit 0
else
echo ""
echo "Selection must be an integer, or a 'q' to exit"
fi
done
# Gets the assigned profile for a device
targetDeviceProfile=$(cat "$configPath" | yq e ".devices.\"$targetDevice\".mib_profile")
# Skip the OID retrieval process if no device profile is defined
if [[ -z "$targetDeviceProfile" ]]; then
echo ""
echo "SNMP profile not found for $targetDevice"
echo "Polling will not work without a profile being set"
echo "Exiting..."
rm -rd "$timeTmpDir"
exit 1
fi
# Grabs copy of device's assigned profile and saves it to a temp directory
podman exec "$targetContainerID" /bin/sh -c "cat \$(find /etc/ktranslate -type f -name \"$targetDeviceProfile\")" >> "$timeTmpDir/$targetDeviceProfile"
profileLocation="$timeTmpDir/$targetDeviceProfile"
# Gets the `extends` block from the assigned profile - assigns to the $profileExtensions array
readarray -t profileExtensions < <(cat "$profileLocation" | yq e '.extends | to_entries[] .value')
# Grabs copies of device's extension profiles and saves them to a temp directory
for extension in "${profileExtensions[@]}"; do
podman exec "$targetContainerID" /bin/sh -c "cat \$(find /etc/ktranslate -type f -name \"$extension\")" >> "$timeTmpDir/$extension"
profileExtensionsLocations+=("$timeTmpDir/$extension")
done
# Declares array for storing OIDs to poll
declare -a selectedOIDs
# Extract OIDs from a given YAML file
# Checks if new OID is contained within another discovered OID
# Prevents long walks (on the beach?) caused by polling whole tables
extract_oids() {
local file="$1"
local foundOIDs=($(cat "$file" | yq e '.. | select(has("OID")) | .OID' -))
local filteredOIDs=()
for unfilteredOID in "${foundOIDs[@]}"; do
# Only add OID to the filtered list if it is not a substring of any other OID
isSubOID=false
for comparisonOID in "${foundOIDs[@]}"; do
if [[ "$unfilteredOID" != "$comparisonOID" && "$comparisonOID" == *"$unfilteredOID"* ]]; then
# Checks that the substring is followed by a period, or is an exact match
if [[ "${comparisonOID:${#unfilteredOID}:1}" == "." || "${#comparisonOID}" == "${#unfilteredOID}" ]]; then
isSubOID=true
break
fi
fi
done
if [ "$isSubOID" = false ]; then
filteredOIDs+=("$unfilteredOID")
fi
done
echo "${filteredOIDs[@]}"
}
# Declaring this higher to capture additional output
timingOutputFile=./"$targetDevice"_timing_results-$(date +%s).txt
# Extract OIDs from primary profile
echo "" | tee -a "$timingOutputFile"
if [[ -f "$profileLocation" ]]; then
echo "Grabbing OIDs from assigned profile: $profileLocation" | tee -a "$timingOutputFile"
selectedOIDs+=($(extract_oids "$profileLocation"))
fi
# Extract OIDs from extension profiles
echo "" | tee -a "$timingOutputFile"
for profile in "${profileExtensionsLocations[@]}"; do
if [[ -f "$profile" ]]; then
echo "Grabbing OIDs from extension profile: $profile" | tee -a "$timingOutputFile"
selectedOIDs+=($(extract_oids "$profile"))
fi
done
echo "" | tee -a "$timingOutputFile"
# Retrieves SNMP credentials to determine if it's v1/v2c or v3
targetDeviceCommString=$(cat "$configPath" | yq e ".devices.\"$targetDevice\".snmp_comm" -)
targetDeviceV3Creds=$(cat "$configPath" | yq e ".devices.\"$targetDevice\".snmp_v3" -)
targetDeviceIP=$(cat "$configPath" | yq e ".devices.\"$targetDevice\".device_ip")
if [[ -n "$targetDeviceCommString" && "$targetDeviceCommString" != "null" ]]; then
echo "Device $targetDevice is using SNMP v1/v2c"
startTimeMs=$(date +%s%3N)
for oid in "${selectedOIDs[@]}"; do
timestamp=[$(date '+%Y-%m-%d %H:%M:%S,%3N')]
snmpOutput=$(snmpwalk -v 2c -On -c "$targetDeviceCommString" "$targetDeviceIP" ."$oid")
# 'Tee' buffers output and slows down loop, skewing results. Double 'echo' statement seems to avoid this issue
echo "$timestamp $snmpOutput"
echo "$timestamp $snmpOutput" >> "$timingOutputFile"
done
endTimeMs=$(date +%s%3N)
totalDuration=$(echo "scale=3; ($endTimeMs - $startTimeMs) / 1000" | bc)
echo "" | tee -a "$timingOutputFile"
echo "Total time to walk device's assigned profiles: ${totalDuration}s" | tee -a "$timingOutputFile"
echo ""
echo "Saved results to $timingOutputFile"
elif [[ -n "$targetDeviceV3Creds" && "$targetDeviceV3Creds" != "null" ]]; then
echo ""
echo "Device $targetDevice is using SNMP v3"
echo ""
v3UserName=$(echo "$targetDeviceV3Creds" | yq e '.user_name')
v3AuthProt=$(echo "$targetDeviceV3Creds" | yq e '.authentication_protocol')
v3AuthPass=$(echo "$targetDeviceV3Creds" | yq e '.authentication_passphrase')
v3PrivProt=$(echo "$targetDeviceV3Creds" | yq e '.privacy_protocol')
v3PrivPass=$(echo "$targetDeviceV3Creds" | yq e '.privacy_passphrase')
if [[ -n "$v3AuthProt" && "$v3AuthProt" != "null" && -n "$v3PrivProt" && "$v3PrivProt" != "null" ]]; then
v3Level=authPriv
elif [[ -n "$v3AuthProt" && "$v3AuthProt" != "null" && ( -z "$v3PrivProt" || "$v3PrivProt" == "null" ) ]]; then
v3Level=authNoPriv
elif [[ ( -z "$v3AuthProt" || "$v3AuthProt" == "null" ) && ( -z "$v3PrivProt" || "$v3PrivProt" == "null" ) ]]; then
v3Level=noAuthNoPriv
else
echo "Couldn't determine snmpwalk authentication level. Are 'snmp_v3.authentication_protocol' and 'snmp_v3.privacy_protocol' set for the device?"
rm -rd "$timeTmpDir"
exit 1
fi
startTimeMs=$(date +%s%3N)
for oid in "${selectedOIDs[@]}"; do
timestamp=[$(date '+%Y-%m-%d %H:%M:%S,%3N')]
snmpOutput=$(snmpwalk -v 3 -l "$v3Level" -u "$v3UserName" -a "$v3AuthProt" -A "$v3AuthPass" -x "$v3PrivProt" -X "$v3PrivPass" -ObentU -Cc "$targetDeviceIP" ."$oid")
# 'Tee' buffers output and slows down loop, skewing results. Double 'echo' statement seems to avoid this issue
echo "$timestamp $snmpOutput"
echo "$timestamp $snmpOutput" >> "$timingOutputFile"
done
endTimeMs=$(date +%s%3N)
totalDuration=$(echo "scale=3; ($endTimeMs - $startTimeMs) / 1000" | bc)
echo "" | tee -a "$timingOutputFile"
echo "Total time to walk device's assigned profiles: ${totalDuration}s" | tee -a "$timingOutputFile"
echo ""
echo "Saved results to $timingOutputFile"
else
echo "SNMP configuration not found for $targetDevice"
echo "Polling will not work against a device that does not have SNMP credentials configured"
echo "Check that your device has either '<deviceName>.snmp_comm' or <deviceName>.snmp_v3[]' set"
echo "Exiting..."
rm -rd "$timeTmpDir"
rm "$timingOutputFile"
rm
exit 1
fi
rm -rd "$timeTmpDir"
}
baremetalTimeRoutine() {
configPath=$(grep -- '-snmp' /etc/default/ktranslate.env | awk '{print $2}')
profileRepository=/etc/ktranslate/profiles
deviceList=($(cat "$configPath" | yq e ".devices | to_entries[] .key"))
# Displays menu and allows device selection
echo "=-=-=-=-=-=-=-=-=-=-="
for i in "${!deviceList[@]}"; do
echo "[$i] ${deviceList[i]}"
done
echo ""
echo "[q] Exit npmDiag"
echo "=-=-=-=-=-=-=-=-=-=-="
# Forces selection to be an integer, or a q to exit
menuLoopExit=false
while [[ "$menuLoopExit" == false ]]; do
echo ""
echo "Enter the number of the device you want to time"
read -ep "You can also use 'q' to exit the script > " menuSelection
if [[ "$menuSelection" =~ ^[0-9]+$ ]]; then
if [[ "$menuSelection" -ge "${#deviceList[@]}" ]]; then
echo ""
echo "Device selection must be an integer shown in the listed options."
menuLoopExit=false
unset menuSelection
else
targetDevice="${deviceList[$menuSelection]}"
menuLoopExit=true
fi
elif [[ "${menuSelection,,}" = "q" ]]; then
echo ""
echo "Exiting..."
exit 0
else
echo ""
echo "Selection must be an integer, or a 'q' to exit"
fi
done
# Gets the assigned profile for a device
targetDeviceProfile=$(cat "$configPath" | yq e ".devices.\"$targetDevice\".mib_profile")
# Skip the OID retrieval process if no device profile is defined
if [[ -z "$targetDeviceProfile" ]]; then
echo ""
echo "SNMP profile not found for $targetDevice"
echo "Polling will not work without a profile being set"
echo "Exiting..."
exit 1
fi
# Gets the location of the assigned profile
profileLocation=$(find "$profileRepository" -type f -name "$targetDeviceProfile")
# Gets the `extends` block from the assigned profile - assigns to the $profileExtensions array
readarray -t profileExtensions < <(yq e '.extends | to_entries[] .value' < "$profileLocation")
# Gets the location of the extension profiles
declare -a profileExtensionsLocations
for extension in "${profileExtensions[@]}"; do
result=$(find "$profileRepository" -type f -name "$extension")
profileExtensionsLocations+=("$result")
done
# Declares array for storing OIDs to poll
declare -a selectedOIDs
# Extract OIDs from a given YAML file
# Checks if new OID is contained within another discovered OID
# Prevents long walks (on the beach?) caused by polling whole tables
extract_oids() {
local file="$1"
local foundOIDs=($(cat "$file" | yq e '.. | select(has("OID")) | .OID' -))
local filteredOIDs=()
for unfilteredOID in "${foundOIDs[@]}"; do
# Only add OID to the filtered list if it is not a substring of any other OID
isSubOID=false
for comparisonOID in "${foundOIDs[@]}"; do
if [[ "$unfilteredOID" != "$comparisonOID" && "$comparisonOID" == *"$unfilteredOID"* ]]; then
# Checks that the substring is followed by a period, or is an exact match
if [[ "${comparisonOID:${#unfilteredOID}:1}" == "." || "${#comparisonOID}" == "${#unfilteredOID}" ]]; then
isSubOID=true
break
fi
fi
done
if [ "$isSubOID" = false ]; then
filteredOIDs+=("$unfilteredOID")
fi
done
echo "${filteredOIDs[@]}"
}
# Declaring this higher to capture additional output
timingOutputFile=./"$targetDevice"_timing_results-$(date +%s).txt
# Extract OIDs from primary profile
echo "" | tee -a "$timingOutputFile"
if [[ -f "$profileLocation" ]]; then
echo "Grabbing OIDs from assigned profile: $profileLocation" | tee -a "$timingOutputFile"
selectedOIDs+=($(extract_oids "$profileLocation"))
fi
# Extract OIDs from extension profiles
echo "" | tee -a "$timingOutputFile"
for profile in "${profileExtensionsLocations[@]}"; do
if [[ -f "$profile" ]]; then
echo "Grabbing OIDs from extension profile: $profile" | tee -a "$timingOutputFile"
selectedOIDs+=($(extract_oids "$profile"))
fi
done
echo "" | tee -a "$timingOutputFile"
# Retrieves SNMP credentials to determine if it's v1/v2c or v3
targetDeviceCommString=$(cat "$configPath" | yq e ".devices.\"$targetDevice\".snmp_comm" -)
targetDeviceV3Creds=$(cat "$configPath" | yq e ".devices.\"$targetDevice\".snmp_v3" -)
targetDeviceIP=$(cat "$configPath" | yq e ".devices.\"$targetDevice\".device_ip")
if [[ -n "$targetDeviceCommString" && "$targetDeviceCommString" != "null" ]]; then
echo "Device $targetDevice is using SNMP v1/v2c"
startTimeMs=$(date +%s%3N)
for oid in "${selectedOIDs[@]}"; do
timestamp=[$(date '+%Y-%m-%d %H:%M:%S,%3N')]
snmpOutput=$(snmpwalk -v 2c -On -c "$targetDeviceCommString" "$targetDeviceIP" ."$oid")
# 'Tee' buffers output and slows down loop, skewing results. Double 'echo' statement seems to avoid this issue
echo "$timestamp $snmpOutput"
echo "$timestamp $snmpOutput" >> "$timingOutputFile"
done
endTimeMs=$(date +%s%3N)
totalDuration=$(echo "scale=3; ($endTimeMs - $startTimeMs) / 1000" | bc)
echo "" | tee -a "$timingOutputFile"
echo "Total time to walk device's assigned profiles: ${totalDuration}s" | tee -a "$timingOutputFile"
echo ""
echo "Saved results to $timingOutputFile"
elif [[ -n "$targetDeviceV3Creds" && "$targetDeviceV3Creds" != "null" ]]; then
echo ""
echo "Device $targetDevice is using SNMP v3"
echo ""
v3UserName=$(echo "$targetDeviceV3Creds" | yq e '.user_name')
v3AuthProt=$(echo "$targetDeviceV3Creds" | yq e '.authentication_protocol')
v3AuthPass=$(echo "$targetDeviceV3Creds" | yq e '.authentication_passphrase')
v3PrivProt=$(echo "$targetDeviceV3Creds" | yq e '.privacy_protocol')
v3PrivPass=$(echo "$targetDeviceV3Creds" | yq e '.privacy_passphrase')
if [[ -n "$v3AuthProt" && "$v3AuthProt" != "null" && -n "$v3PrivProt" && "$v3PrivProt" != "null" ]]; then
v3Level=authPriv
elif [[ -n "$v3AuthProt" && "$v3AuthProt" != "null" && ( -z "$v3PrivProt" || "$v3PrivProt" == "null" ) ]]; then
v3Level=authNoPriv
elif [[ ( -z "$v3AuthProt" || "$v3AuthProt" == "null" ) && ( -z "$v3PrivProt" || "$v3PrivProt" == "null" ) ]]; then
v3Level=noAuthNoPriv
else
echo "Couldn't determine snmpwalk authentication level. Are 'snmp_v3.authentication_protocol' and 'snmp_v3.privacy_protocol' set for the device?"
rm -rd "$timeTmpDir"
exit 1
fi
startTimeMs=$(date +%s%3N)
for oid in "${selectedOIDs[@]}"; do
timestamp=[$(date '+%Y-%m-%d %H:%M:%S,%3N')]
snmpOutput=$(snmpwalk -v 3 -l "$v3Level" -u "$v3UserName" -a "$v3AuthProt" -A "$v3AuthPass" -x "$v3PrivProt" -X "$v3PrivPass" -ObentU -Cc "$targetDeviceIP" ."$oid")
# 'Tee' buffers output and slows down loop, skewing results. Double 'echo' statement seems to avoid this issue
echo "$timestamp $snmpOutput"
echo "$timestamp $snmpOutput" >> "$timingOutputFile"
done
endTimeMs=$(date +%s%3N)
totalDuration=$(echo "scale=3; ($endTimeMs - $startTimeMs) / 1000" | bc)
echo "" | tee -a "$timingOutputFile"
echo "Total time to walk device's assigned profiles: ${totalDuration}s" | tee -a "$timingOutputFile"
echo ""
echo "Saved results to $timingOutputFile"
else
echo "SNMP configuration not found for $targetDevice"
echo "Polling will not work against a device that does not have SNMP credentials configured"