LAB: Introduction to Cloud Monitoring

LAB: Introduction to Cloud Monitoring

Task:

• Create a VM Instance
• Install Monitoring agents on Compute Engine
• Create a Monitoring dashboard, Uptime checks, Alerting Policy in Cloud Monitoring

Solution

Task 1: Create VM instance

Under Compute Engine | VM Instance: Create Instance

Under Create Instance | Name: dclessons-instance-1 | Region: us-central1(lowa) , Zone: us-central1-a | Machine Configuration: Series : N1 , Machine Type: n1-standard-1

Under Identity & API Access | Service Account: No Service Account

Under Firewall | Enable both Allow HTTP traffic and HTTPS Traffic

Under Advance Option | Under management | Automation: put below commands

#!/bin/bash

apt-get update -y

apt-get install apache2 php php-mysql -y

cd /var/www/html

echo "healthy" > healthy.html

apt-get install wget

apt-get install yum

apt-get install tar

apt-get install sysv-rc-conf

wget https://wordpress.org/wordpress-5.1.1.tar.gz

tar -xzf wordpress-5.1.1.tar.gz

cp -r wordpress/* /var/www/html/

rm -rf wordpress

rm -rf wordpress-5.1.1.tar.gz

chmod -R 755 wp-content

chown -R www-data:www-data wp-content

chown -Rv www-data.www-data /var/www/html/

chmod -R 755 wp-content

rm -rf index.html

systemctl start apache2

Keep all other Option as it is and Click Create

Note the External IP and Browse it on WEB | you will see WordPress

Task 2: Configure Adding Monitoring Agents to instance

From Console | SSH to Compute Instance | Enter the below command and press Enter | gcloud auth login --no-launch-browser -q

You will receive below as the output. Copy the URL mentioned in the output | Paste the URL in a new tab and login with the Email ID mentioned in the login console. | After the successful login, you will be prompted to give access to Google Cloud SDK, click on Allow.

You will receive an Authorization code as the output, copy the code and switch back to the SSH window.

Enter the below command to install the Cloud Monitoring agent.

curl -sSO https://dl.google.com/cloudagents/add-google-cloud-ops-agent-repo.sh

sudo bash add-google-cloud-ops-agent-repo.sh --also-install

 When prompted, enter Y to continue.

Enter the below command to check the status of the agent and install the updates. Enter :q to exit the command.

sudo systemctl status google-cloud-ops-agent"*"

sudo apt-get update

Task 3: Creating a Monitoring Metrics & Uptime Check:

Under Monitoring | Overview | Click Uptime checks

Click Create Uptime check

Under Select the resource to be mentioned | Protocol : HTTP | resource Type: Instance | Applies to : Single | Instance: dclessons-instance-1 | Leave other as default an click on Next

Under response Validation | Leave all setting as default and click on Next | Response Timeout: 10 | Enable : Log Check failures | select other feature as shown | Click Continue

Enable Create an Alert | Name: Uptime failure | Click Continue

Under Enter a name for Uptime check : dclessons-uptime-check | Click test | After the successful response from testing the connection, click on Create.

Task 4: Configure Alerting policy

Under Monitoring | Alerting | Create Policy

Under Alert Condition |New Condition | Select a metric Click Selecta metric | Disable show only active resources and metrics

Type Network traffic in the filter by resource and metric name and click on VMinstance and then click on Interface(under Active or Inactive MetricCategories). Select Network traffic (agent.googleapis.com/interface/traffic) (underActive or Inactive Metrics) and click Apply. Leave all other fields at the default value.

Click on Next and Set the Threshold position to Above threshold and the Threshold value to 500. | Advance Option: Condition name: VM Instance-Network Traffic | Next

In the Advanced Options section, set the retest window to 1 min. Click on Next.