The world of technology is a rapidly changing and developing field every day. While cloud-based solutions, in particular, make companies’ infrastructures more flexible, scalable and manageable, security concerns are also increasing. In this context, Kubernetes, used for container base architectures and their management, makes a serious difference in today’s application development center. Azure Kubernetes Service (AKS), located on Microsoft’s Azure platform, draws attention with the advantages it offers to businesses using this technology. However, it should not be forgotten that being safe is extremely important in order to maximize these advantages.

In a meeting with a customer last week, an attendee asked: “How can we increase the security of our applications on Azure Kubernetes Service (AKS)?” This question represents a common problem faced by many businesses. Every business, whether a large company or a small business, has concerns about data security and needs to develop strategies to address these concerns. Let’s take a look together, we will provide a very comprehensive guide on how to increase your security in AKS.

While AKS offers a strong cloud infrastructure, a multi-layered approach must be adopted to ensure the security of this infrastructure. By making your business more resilient to cyber threats, it is possible to eliminate negative consequences such as data loss and reputation damage. Understanding how to implement this multi-layered security approach cannot be ignored for any business.

But do you really need it?

What is Azure Kubernetes Service (AKS)?

Azure Kubernetes Service (AKS) is a container orchestration service on the Microsoft Azure platform. Kubernetes is specifically designed to facilitate the management of applications developed with microservices architecture. AKS allows users to create, manage, and scale a Kubernetes cluster, allowing them to properly deliver their container-based applications. AKS, combined with the powerful infrastructure offered by Azure, allows developers and businesses to manage their applications more securely, faster and more accurately.

Let’s unpack this a bit.

AKS automates infrastructure management, allowing users to focus solely on application code and containers. This allows businesses to use their resources more efficiently. While Kubernetes enables automatic provisioning, scaling and storage of application components, AKS further streamlines this process, enhancing the user experience. However, the security aspects that come with this convenience should not be ignored. Especially in the face of ever-increasing cyber threats, creating a secure structure on AKS requires critical knowledge.

Key Features and Benefits

• Auto Scaling: AKS has the ability to automatically scale resources based on application traffic. This helps businesses manage costs while optimizing resource usage. For example, you can add more resources during periods of increased traffic (e.g. holiday seasons) and reduce these resources when demand decreases.
• Easy Management: Offering management through the Azure portal, AKS allows users to easily create and manage Kubernetes clusters. Thanks to its user-friendly interface, you do not need to deal with complex command line operations, which eases the workload of administrators.
• Security and Compliance: AKS increases data security by integrating with the security protocols offered by Azure and complies with various standards (ISO, HIPAA, GDPR, etc.). For example, you can increase the security of your applications with features such as data encryption, authentication and access control.
• Integrated Development Tools: AKS accelerates continuous integration and deployment processes by integrating with Azure DevOps and other CI/CD (Continuous Integration/Continuous Deployment) tools. In this way, software development processes become more efficient.
• Advanced Network Management: With the services offered by Azure, it is possible to create a secure and separated structure on AKS. For example, you can keep your application traffic under control by using virtual networks (VNet) and network security groups (NSG).
• Application Performance Monitoring: Thanks to Azure Monitor and other monitoring tools, application performance can be continuously monitored and potential problems can be detected in a timely manner. This feature offers system administrators a proactive approach, helping them prevent problems before they escalate.

Usage Scenarios

Azure Kubernetes Service (AKS) can be used in many different industries and application scenarios. To exemplify a few of them:

1. E-Commerce Applications: An e-commerce platform needs an instantly scalable infrastructure during peak traffic periods (e.g. Black Friday or New Year’s Eve). Thanks to its automatic scaling capabilities, AKS provides additional resources in case of demand surges, thus ensuring that customers’ shopping experience continues uninterrupted.

You may ask why it is so popular?

2. Healthcare Industry Applications: Healthcare organizations require high security standards to protect patient data. AKS provides control and management of patient data by offering various security features to increase data security. For example, patient records can be ensured to be securely stored and accessed only by authorized personnel.

The majority of our customers prefer this solution.

How much does it cost?

3. Software Development and Testing Environments: Software development teams can use a service like AKS to quickly develop and test applications. Testing of different versions can be easily managed through AKS, speeding up the development process.

Here’s the nice thing:

4. Big Data and Analytics Applications: Companies that do big data analytics can manage their applications that require high processing power more effectively by using AKS to process and analyze their data. For example, they can shorten processing times by quickly adding and removing sources in data analysis processes.

How Does It Work?

AKS runs on the powerful Kubernetes infrastructure. Kubernetes is an orchestration tool that makes managing containerized applications easier. AKS further automates this process, preventing users from dealing with complex configurations. Users can create and manage Kubernetes clusters through the Azure portal or Azure CLI.

On AKS, containers are grouped into pods. Each pod can accommodate one or more containers and communication is provided between these structures. Users can apply various security settings and policies to secure pods. Additionally, with the services offered by Azure, it is possible to provide secure communication between pods. Such measures are critical to reduce the possibility of any security breaches.

Who Should Use It?

This is exactly where it comes into play.

Azure Kubernetes Service is suitable for all types of businesses that need a flexible and scalable infrastructure. It’s especially ideal for development teams looking to transition to microservices architecture, scaling high-traffic applications, or speeding up continuous integration and deployment processes. Additionally, the use of AKS is common in sectors such as sales, finance and e-commerce that need to increase data security. Any business should consider AKS when migrating to a cloud-based solution.

As CloudSpark, we support our customers in this field with over 15 years of experience.

Azure Kubernetes Service with CloudSpark

As a company specializing in Azure Kubernetes service, CloudSpark helps businesses create a secure structure. CloudSpark offers customized solutions to customer needs with AKS installation, security strengthening and management services and increases the security of businesses by providing support at every stage. CloudSpark’s services enable businesses to operate more securely in the cloud. For example, CloudSpark helps businesses become more resilient to threats by implementing best practices and strategies to increase the security of applications on AKS.

Last Word

To summarize, while Azure Kubernetes Service provides a powerful and flexible environment for cloud-based applications, security measures also need to be implemented. The strategies mentioned in this article will help to safely increase applications on AKS. Remember that a vulnerability can compromise the entire system. Therefore, it is extremely important that you regularly review and comply with your security measures. In this period when technology is rapidly developing, do not forget to explore the solutions offered by CloudSpark to increase your security and be resistant to cyber threats.

Balance of Performance and Security

As network security increases, performance decreases — this is an old myth. In a properly designed network, both are possible. The problem is that security devices become bottlenecks. Next-gen firewalls can inspect traffic at wire-speed with hardware acceleration.

SD-WAN technology optimizes the internet access of branch offices. We have customers who reduce costs by 60% by using broadband instead of MPLS. Moreover, thanks to application-based routing, critical traffic always gets priority.

Restricting lateral movement within the network with micro-segmentation is a must for modern security architecture. Even if the attacker infiltrates a point, his movement space is minimized.

Frequently Asked Questions

Should we switch to SD-WAN?

If you have 3+ branches and MPLS costs are high, yes. SD-WAN establishes a VPN-like secure connection using your existing internet lines. Application-based traffic routing ensures the performance of critical business applications.

Why is network segmentation important?

In a flat network structure, leakage at one point spreads to the entire system. You narrow the attack surface by segmenting with VLAN and micro segmentation. Regulations such as PCI DSS also require this.

Make a Difference with CloudSpark

As Turkey’s leading cloud technologies and digital transformation partner, CloudSpark provides services with its expert staff in the field of Security Guide for Azure Kubernetes Service (AKS): Pod and Network Policies. We offer 24/7 technical support, proactive monitoring and customer-specific solution architecture.

Contact us for a free consultation. Let’s analyze your existing infrastructure and design together the solution that best suits your needs.