#!/bin/bash # # Copyright 2023 Nordix Foundation. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # set -o errexit # Exit on most errors set -o nounset # Disallow expansion of unset variables set -o pipefail # Use last non-zero exit code in a pipeline #set -o xtrace # Uncomment for debugging function script_usage() { cat <<EOF Usage: -h|--help Displays this help -u|--metrics-url=URL URL to Prometheus metrics Default: http://localhost:8887/manage/prometheus -o|--output=FILE Path to output file Default: metrics-reports/metrics-[timestamp].tsv EOF } function parse_params() { # Set parameter defaults METRICS_URL="http://localhost:8887/manage/prometheus" OUTFILE="metrics-reports/metrics-$(date --iso-8601=seconds).tsv" TEMP_DIR="/tmp/cps-metrics" # Parse parameters local param while [[ $# -gt 0 ]]; do param="$1" shift case $param in -h | --help) script_usage exit 0 ;; -u | --metrics-url) METRICS_URL=$1 shift ;; -o | --output) OUTFILE=$1 shift ;; *) echo "Invalid parameter was provided: $param" >&2 script_usage exit 1 ;; esac done } function generate_report() { # Create needed directories. mkdir -p $TEMP_DIR "$(dirname "$OUTFILE")" # Scrape raw metrics (suppress progress meter). curl --fail --silent --show-error --output $TEMP_DIR/metrics-raw.txt "$METRICS_URL" # Remove comments, sort by name, and separate by tabs. grep --invert-match "^#" $TEMP_DIR/metrics-raw.txt | sort | sed 's/,[}]/}\t/' >$TEMP_DIR/metrics-all.txt # Extract useful metrics. grep -E "^cps_|^spring_data_" $TEMP_DIR/metrics-all.txt >$TEMP_DIR/metrics-cps.txt # Extract into columns. grep "_count" $TEMP_DIR/metrics-cps.txt | sed 's/_count//' | cut -f 1 >$TEMP_DIR/column1.txt grep "_count" $TEMP_DIR/metrics-cps.txt | cut -f 2 >$TEMP_DIR/column2.txt grep "_sum" $TEMP_DIR/metrics-cps.txt | cut -f 2 >$TEMP_DIR/column3.txt grep "_max" $TEMP_DIR/metrics-cps.txt | cut -f 2 >$TEMP_DIR/column4.txt # Combine columns into report. paste $TEMP_DIR/column{1,2,3,4}.txt >$TEMP_DIR/report.txt # Sort by Sum (column 3), descending. sort --general-numeric-sort --reverse --field-separator=$'\t' --key=3 $TEMP_DIR/report.txt >$TEMP_DIR/report-sorted.txt # Compile final report, with column headers. echo -e "Method\tCount\tSum\tMax" >"$OUTFILE" cat $TEMP_DIR/report-sorted.txt >>"$OUTFILE" # Output path to generated file echo "$OUTFILE" } function cleanup() { rm -f $TEMP_DIR/* && rmdir $TEMP_DIR 2>/dev/null } # Set up the cleanup function to be triggered upon script exit trap cleanup EXIT # Main script logic parse_params "$@" generate_report exit 0