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#!/bin/bash
# Copyright 2017 AT&T Intellectual Property, Inc
#
# 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.
#
#. What this is: Functions for testing with Prometheus and Grafana. Sets up
#. Prometheus and Grafana on a master node (e.g. for kubernetes, docker,
#. rancher, openstack) and agent nodes (where applications run).
#. Prerequisites:
#. - Ubuntu server for master and agent nodes
#. - Docker installed
#. Usage:
#. $ git clone https://gerrit.opnfv.org/gerrit/models ~/models
#. $ cd ~/models/tools/prometheus
#. $ bash prometheus-tools.sh setup "<list of agent nodes>"
#. <list of agent nodes>: space separated IP of agent nodes
#. $ bash prometheus-tools.sh grafana
#. Runs grafana in a docker container and connects to prometheus as datasource
#. $ bash prometheus-tools.sh all "<list of agent nodes>"
#. Does all of the above
#. $ bash prometheus-tools.sh clean "<list of agent nodes>"
#
# Prometheus links
# https://prometheus.io/download/
# https://prometheus.io/docs/introduction/getting_started/
# https://github.com/prometheus/prometheus
# https://prometheus.io/docs/instrumenting/exporters/
# https://github.com/prometheus/node_exporter
# https://github.com/prometheus/haproxy_exporter
# https://github.com/prometheus/collectd_exporter
function log() {
f=$(caller 0 | awk '{print $2}')
l=$(caller 0 | awk '{print $1}')
echo "$f:$l ($(date)) $1"
}
# Use this to trigger fail() at the right places
# if [ "$RESULT" == "Test Failed!" ]; then fail "message"; fi
function fail() {
echo "$1"
exit 1
}
function setup_prometheus() {
# Prerequisites
log "Setting up prometheus master and agents"
sudo apt install -y golang-go jq
# Install Prometheus server
log "Setting up prometheus master"
if [[ -d ~/prometheus ]]; then rm -rf ~/prometheus; fi
mkdir ~/prometheus
cd ~/prometheus
wget https://github.com/prometheus/prometheus/releases/download/v2.0.0-beta.2/prometheus-2.0.0-beta.2.linux-amd64.tar.gz
tar xvfz prometheus-*.tar.gz
cd prometheus-*
# Customize prometheus.yml below for your server IPs
# This example assumes the node_exporter and haproxy_exporter will be installed on each node
cat <<'EOF' >prometheus.yml
global:
scrape_interval: 15s # By default, scrape targets every 15 seconds.
# Attach these labels to any time series or alerts when communicating with
# external systems (federation, remote storage, Alertmanager).
external_labels:
monitor: 'codelab-monitor'
# A scrape configuration containing exactly one endpoint to scrape:
# Here it's Prometheus itself.
scrape_configs:
# The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
- job_name: 'prometheus'
# Override the global default and scrape targets from this job every 5 seconds.
scrape_interval: 5s
static_configs:
EOF
for node in $nodes; do
echo " - targets: ['${node}:9100']" >>prometheus.yml
echo " - targets: ['${node}:9101']" >>prometheus.yml
done
# Start Prometheus
nohup ./prometheus --config.file=prometheus.yml > /dev/null 2>&1 &
# Browse to http://host_ip:9090
log "Installing exporters"
# Install exporters
# https://github.com/prometheus/node_exporter
cd ~/prometheus
wget https://github.com/prometheus/node_exporter/releases/download/v0.14.0/node_exporter-0.14.0.linux-amd64.tar.gz
tar xvfz node*.tar.gz
# https://github.com/prometheus/haproxy_exporter
wget https://github.com/prometheus/haproxy_exporter/releases/download/v0.7.1/haproxy_exporter-0.7.1.linux-amd64.tar.gz
tar xvfz haproxy*.tar.gz
# The scp and ssh actions below assume you have key-based access enabled to the nodes
for node in $nodes; do
log "Setup agent at $node"
scp -r -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no \
node_exporter-0.14.0.linux-amd64/node_exporter ubuntu@$node:/home/ubuntu/node_exporter
ssh -x -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no \
ubuntu@$node "nohup ./node_exporter > /dev/null 2>&1 &"
scp -r -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no \
haproxy_exporter-0.7.1.linux-amd64/haproxy_exporter ubuntu@$node:/home/ubuntu/haproxy_exporter
ssh -x -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no \
ubuntu@$node "nohup ./haproxy_exporter > /dev/null 2>&1 &"
done
host_ip=$(ip route get 8.8.8.8 | awk '{print $NF; exit}')
while ! curl -o /tmp/up http://$host_ip:9090/api/v1/query?query=up ; do
log "Prometheus API is not yet responding... waiting 10 seconds"
sleep 10
done
exp=$(jq '.data.result|length' /tmp/up)
log "$exp exporters are up"
while [[ $exp -gt 0 ]]; do
((exp--))
eip=$(jq -r ".data.result[$exp].metric.instance" /tmp/up)
job=$(jq -r ".data.result[$exp].metric.job" /tmp/up)
log "$job at $eip"
done
log "Prometheus dashboard is available at http://$host_ip:9090"
echo "Prometheus dashboard is available at http://$host_ip:9090" >>/tmp/summary
}
function connect_grafana() {
log "Setup Grafana datasources and dashboards"
prometheus_ip=$1
grafana_ip=$2
while ! curl -X POST http://admin:admin@$grafana_ip:3000/api/login/ping ; do
log "Grafana API is not yet responding... waiting 10 seconds"
sleep 10
done
log "Setup Prometheus datasource for Grafana"
cd ~/prometheus/
cat >datasources.json <<EOF
{"name":"Prometheus", "type":"prometheus", "access":"proxy", \
"url":"http://$prometheus_ip:9090/", "basicAuth":false,"isDefault":true, \
"user":"", "password":"" }
EOF
curl -X POST -o /tmp/json -u admin:admin -H "Accept: application/json" \
-H "Content-type: application/json" \
-d @datasources.json http://admin:admin@$grafana_ip:3000/api/datasources
if [[ "$(jq -r '.message' /tmp/json)" != "Datasource added" ]]; then
fail "Datasource creation failed"
fi
log "Prometheus datasource for Grafana added"
log "Import Grafana dashboards"
# Setup Prometheus dashboards
# https://grafana.com/dashboards?dataSource=prometheus
# To add additional dashboards, browse the URL above and import the dashboard via the id displayed for the dashboard
# Select the home icon (upper left), Dashboards / Import, enter the id, select load, and select the Prometheus datasource
cd $WORK_DIR/dashboards
boards=$(ls)
for board in $boards; do
curl -X POST -u admin:admin -H "Accept: application/json" -H "Content-type: application/json" -d @${board} http://$grafana_ip:3000/api/dashboards/db
done
log "Grafana dashboards are available at http://$host_ip:3000 (login as admin/admin)"
echo "Grafana dashboards are available at http://$host_ip:3000 (login as admin/admin)" >>/tmp/summary
log "Grafana API is available at http://admin:admin@$host_ip:3000/api/v1/query?query=<string>"
echo "Grafana API is available at http://admin:admin@$host_ip:3000/api/v1/query?query=<string>" >>/tmp/summary
}
function run_and_connect_grafana() {
# Per http://docs.grafana.org/installation/docker/
host_ip=$(ip route get 8.8.8.8 | awk '{print $NF; exit}')
sudo docker run -d -p 3000:3000 --name grafana grafana/grafana
status=$(sudo docker inspect grafana | jq -r '.[0].State.Status')
while [[ "x$status" != "xrunning" ]]; do
log "Grafana container state is ($status)"
sleep 10
status=$(sudo docker inspect grafana | jq -r '.[0].State.Status')
done
log "Grafana container state is $status"
connect_grafana $host_ip $host_ip
log "connect_grafana complete"
}
export WORK_DIR=$(pwd)
nodes=$2
case "$1" in
setup)
setup_prometheus "$2"
;;
grafana)
run_and_connect_grafana
;;
all)
setup_prometheus "$2"
run_and_connect_grafana
;;
clean)
sudo kill $(ps -ef | grep "\./prometheus" | grep prometheus.yml | awk '{print $2}')
rm -rf ~/prometheus
sudo docker stop grafana
sudo docker rm grafana
for node in $nodes; do
ssh -x -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no \
ubuntu@$node "sudo kill $(ps -ef | grep ./node_exporter | awk '{print $2}')"
ssh -x -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no \
ubuntu@$node "rm -rf /home/ubuntu/node_exporter"
ssh -x -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no \
ubuntu@$node "sudo kill $(ps -ef | grep ./haproxy_exporter | awk '{print $2}')"
ssh -x -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no \
ubuntu@$node "rm -rf /home/ubuntu/haproxy_exporter"
done
;;
*)
grep '#. ' $0
esac
cat /tmp/summary
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