k8s-infrastructure

This repository contains the source code of our research project. Additional repositories for patched components can be find at:

• Modified version of the Pod Autoscaler: https://github.com/lorisrossi/autoscaler
• Modified version of Nginx Ingress Controller implementation: https://github.com/keni7385/kubernetes-ingress
  In which we added the modified version of the Prometheus Nginx Log Exporter: https://github.com/keni7385/prometheus-nginxlog-exporter

Commands listed here are for the Azure CLI az, but all the file and configurations are cloud-indipendent.

Service principal

Service principals are separate identities that can be associated with an account. Service principals are useful for working with applications and tasks that must be automated.

Useful commands:

• Create the service principal (the password is created for you):

  az ad sp create-for-rbac --name ServicePrincipalName

  Output example:

  {
    "appId": "clientid-____-____-____-____________",
    "displayName": "ServicePrincipalName",
    "name": "http://ServicePrincipalName",
    "password": "xxxxxxxx-xxxxx-xxxx-xxxx-xxxxxxxxxxxx",
    "tenant": "yourtena-ntid-____-____-____________"
  }
  

More information and role assignments.

API setup

Create the file ids.sh with:

echo "export ARM_CLIENT_ID=0\n"\
     "export ARM_CLIENT_SECRET=0\n"\
     "export ARM_SUBSCRIPTION_ID=0\n"\
     "export ARM_TENANT_ID=0" > ids.sh

(updates of this file are ignored)

Replace ARM_CLIENT_ID with appId from the previous command (or use exhisting ones if you already have a service principal), ARM_CLIENT_SECRET with password, TENANT_ID with your tenant (you can get it also from az account show).

Set the ARM_SUBSCRIPTION_ID with one of your available subscriptions. You can see your subscriptions:

az account list --output table

Name               CloudName    SubscriptionId                        State    IsDefault
-----------------  -----------  ------------------------------------  -------  -----------
kub                AzureCloud   11111111-1111-1111-1111-111111111111  Enabled  True
Microsoft Imagine  AzureCloud   22222222-2222-2222-2222-222222222222  Enabled  False

Run the components

There are several components for this project. After creating the cluster, you can start all of them by:

./components-up.sh

And stop them with:

./components-down.sh