Google Cloud - Ops Agent

Step-01: Introduction¶

Install Ops Agent
Verify Monitoring and Logging

Step-02: Install Ops Agent¶

Step-02-01: Install Ops Agent using google cloud console¶

Go to Compute Engine -> VM Instances -> CREATE INSTANCE
Name: demo1-opsagent
Observability - Ops Agent:
Install Ops Agent for Monitoring and Logging: CHECK IT
Click on CREATE

Step-02-02: Install Ops Agent manually¶

# Creater VM Instance
gcloud compute instances create demo2-opsagent \
  --zone=us-central1-a \
  --machine-type=e2-micro \
  --network-interface=subnet=default \
  --tags=http-server \
  --metadata-from-file=startup-script=webserver-install.sh 

# Verify VM Metrics
1. Go to Compute Engine -> VM Instances -> demo2-opsagent -> OBSERVABILITY Tab
2. Click on CPU, PROCESS, MEMORY
3. It shows the message "Requires Ops Agent"

# Connect SSH to VM
gcloud compute ssh --zone "us-central1-a" "demo2-opsagent" --project "gcplearn9"

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

# Install Ops Agent
sudo bash add-google-cloud-ops-agent-repo.sh --also-install
sudo apt list --installed | grep google-cloud-ops-agent

# Verify Ops Agent Status
sudo systemctl status google-cloud-ops-agent"*"

# Restarting Agent (Optional)
sudo service google-cloud-ops-agent restart

## Additional Optional Commands
# Upgrading Agent
sudo bash add-google-cloud-ops-agent-repo.sh --also-install

# Uninstalling the agent (For reference only)
sudo bash add-google-cloud-ops-agent-repo.sh --uninstall

Step-03: Review current VM Monitoring Metrics in Observability Tab of VM¶

Go to Compute Engine -> VM Instances -> demo2-opsagent -> Click on Observability tab
Review Metrics in which many metrics says they need the Monitoring agent.
CPU
Processes
Memory
Disk -> Capacity

Step-05: Verify the Cloud Monitoring Tool¶

Go to Monitoring -> Overview
Click on VIEW GCE DASHBOARD
Click on VMs Dashboard
Verify Agent Status
Ops Agent

Step-06: Review the following¶

Go to Monitoring -> Overview
Click on VIEW GCE DASHBOARD
Click on VMs Dashboard
Review the following tabs
METRICS TAB
LOGS TAB

Step-07: Verify Logs in Logs Explorer¶

Go to Logging -> Logging
Resource Name: demo2-opsagent
Verify Logs

Step-08: Cleanup - Delete VMs¶

Delete VMs
demo1-opsagent
demo2-opsagent