2 posts tagged with "delegates"

This tutorial aims at enabling users to set up a Kubernetes cluster on AWS and will serve as the foundation for your CI/CD pipeline infrastructure. After the infrastructure is ready on a free account, you can proceed to create and install a Delegate.

Credits for AWS​

To avail free credits in AWS please follow the following resources:

• AWS Credits: How To Obtain Free Credits for Your Startup?
• How to Get Free AWS Credits: 4 Tactics to Use

If you are a student please sign in using AWS Educate

Note: Under the AWS Free tier the EKS service is not available, so it’s suggested to get some free credits and use them for EKS.

Pre-requisites:​

There are certain requirements in terms of access and permissions and memory resources for the delegate to function properly.

Creating a Cluster:​

Considering you are a first-time user, please consider the following specifications along with the above prerequisites, while creating a cluster:

• Number of nodes: minimum of 3.
• Machine type: 4vCPU
• Memory: 12GB RAM and 6GB Disk Space. 8GB RAM is for the Delegate. The remaining memory is for Kubernetes and containers.
• Networking: Outbound HTTPS for the Harness connection, and to connect to any container image repo. Allow TCP port 22 for SSH.

For creating a cluster follow the steps mentioned in the documentation, also you can take the help of the demo in the video below.

You will be able to see your cluster, after creation on the management console, like the picture below.

Authenticate to the cluster:​

1. Open a terminal and navigate to where the Delegate file is located.
2. You will connect to your cluster using the terminal so you can simply run the YAML file on the cluster.

3. In the same terminal, log into your Kubernetes cluster. In most platforms, you select the cluster, click Connect, and copy the access command.

4. Next, install the Harness Delegate using the harness-delegate.yaml file you just downloaded. In the terminal connected to your cluster, run this command:

   kubectl apply -f harness-delegate.yml
   

5. The successful output would look like this

6. To validate run the following command and check.

   # kubectl get namespaces
   NAME                  STATUS   AGE
   default               Active   29h
   harness-delegate-ng   Active   24m
   kube-node-lease       Active   29h
   kube-public           Active   29h
   kube-system           Active   29h
   

Also, you could check for pods under your AWS cluster to find the delegate

7. Now that your cluster is operational, you may add resources to it by using the kubectl utility, as you can see. Please use Start Deploying in 5 Minutes with a Delegate-first Approach tutorial to install Delegate at this time and move forward with creating your CI/CD pipeline.

Warning: You have to exit the present pipeline without saving to view delegate details/continue with further steps.

8. You could check about your delegates on the dashboard under Project Setup.

9. The delegate details would look something similar to this

Note: Apart from the above mentioned way, there are other ways to install delegate on AWS, for eg using EC2.

Need further help?​

Feel free to ask questions at community.harness.io or join community slack to chat with our engineers in product-specific channels like:

#continuous-delivery Get support regarding the CD Module of Harness. #continuous-integration Get support regarding the CI Module of Harness.

Creating a delegate requires the creation of an infrastructure in which computational tasks can take place. The infrastructure is typically a Kubernetes cluster.

This tutorial shows you how to set up a Kubernetes cluster on Azure and will serve as the foundation for your CI/CD pipeline infrastructure. After the infrastructure is ready on a free account, you can proceed to create and install a Delegate.

Student Account​

If you’re a student, you’re in luck as there is Azure for Students where you can sign in with your educational email address to create an account without a credit card to get $100 worth of credits.

These credits can be used to deploy the Kubernetes Cluster and other services if required.

To, get started with the account creation go to Azure for Students.

Step 1: Click on Activate Now

Step 2: After signing in with a Microsoft account, enter your educational email address:

Step 3: Sign in to Azure Portal!

A free Azure Account​

For anyone who can verify their identity with a phone number and a credit card, Azure offers a free account with $200 in Azure credit. Once your account has been verified, you can create a Kubernetes cluster in it.

Step 1: Go to the Azure Free Account Page

Step 2: Click on Start free to start the account creation procedure

Step 3: Fill in the following fields

Step 4: Once your details are in click on Sign Up after you have accepted the terms and conditions.

Step 5: Verify your phone number

Step 6: Put in your CC details and depending upon your Region a small amount will be deducted and refunded for verification.

Step 7: You can access your account using the Azure Portal

Azure Portal​

Azure portal is the web-based management console for Microsoft Azure. It provides a single, unified view of all your Azure resources, including compute, storage, networking, and security. You can use the Azure portal to deploy and manage your Azure resources and to monitor their health and usage.

You will use the portal to create your Kubernetes Cluster and connect to it.

Create a Cluster​

The steps to create a cluster will be to use the Azure Kubernetes Service which is the managed Kubernetes offering from Azure. The steps are as follows:

Step 1: Click on Create a Resource after signing in

Step 2: Search Container and then click on Kubernetes Service

Step 3: Click on Create

Step 4: On the Basics page, configure the following options for a Delegate to Run:

• Project details:
  • Select an Azure Subscription.
  • Select or create an Azure Resource group, such as DelegateGroup.
• Cluster details:
  • Enter a Kubernetes cluster name, such as myEnviroment.
  • Select a Region for the AKS cluster
  • Select 99.5% for API server availability for lower cost
• Go to Scale Method and change it to Manual as your account might not have sufficient compute quota for autoscaling. Next change the Node Count to 2

Step 5: Start the resource validation by clicking Review + Create on your portal. Once validated, click Create to begin the process of cluster creation. Wait a few minutes for the cluster to deploy.

Connect to your cluster​

Now, when your cluster is ready you can connect to the Azure Cloud Shel on your portal and open the terminal

Navigate to your cluster and click on Connect!

Follow the steps displayed on the right panel and then you can connect to your cluster!

Run kubectl cluster-info to display details on your cluster!

Next Steps​

Now that your cluster is operational, you may add resources to it by using the kubectl utility, as you can see. Please use Start Deploying in 5 Minutes with a Delegate-first Approach tutorial to install Delegate at this time and move forward with creating your CI/CD pipeline.

Need further help?​

Feel free to ask questions at community.harness.io or join community slack to chat with our engineers in product-specific channels like:

• #continuous-delivery Ask questions/help other users regarding CD Module of Harness.
• #continuous-integration Ask questions/help other users regarding CI Module of Harness.