Manually collect TKG cluster logs from the TCA Control Plane VM

Products

• VMware Telco Cloud Automation

Issue/Introduction

How to collect TKG cluster logs on TCA:

• From the TCA-CP (Control plane) VM
  or
• Any linux VM who has access to the clusters

Collect TCA ogs for:

• Process, CPU, Memory, Network and Disk statistics
• Operating system logs
• All pods and container logs
• IP address of the all pods
• Resource configured and in use for the pods

Environment

TCA 2.x, 3.x

Resolution

1. Connect to the TCA-CP where the clusters are deployed and change user to root:

   Note: Verify You're on the Correct TCA Control Plane (TCA-CP) and make sure make sure you have access to the capv user.

2. Log in to the cluster using the capv user and the cluster’s floating IP without entering a password :

   ssh capv@<cluster-ip>

   1. To confirm the correct SSH key is being used login into management cluster and running this command below:

      kubectl get clusters -A

      kubectl get cluster -n <namespace> <cluster-name> -o yaml

   2. Look for the id_rsa.pub entry in the output. This public key should match the one configured in the TCA-CP under ~/.ssh/id_rsa.pub.

      Note: If you are running this script from a location where you don't have access to SSH keys you will need to enter the password for capv user.

3. Download the attached tkg_logs.sh script

   Note: you will need to run this script as root user and logs will be generated in the /tmp directory.

4. Make the script executable:

   chmod +x tkg_logs.sh

5. Run the script and, when prompted, enter the floating IP address of the cluster from which you want to collect logs.

   ./tkg_logs.sh

Additional Information

If you create an ips.txt file, you can list multiple floating IP addresses logs will be collected for each cluster IP specified.

Example:

ips.txt

192.168.0.1
192.168.0.2