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Top 8 Containers as a Service (CaaS) Tools

Microsoft Azure Container ServiceAmazon EC2 Container ServiceMirantis Kubernetes EngineGoogle Container EngineIBM Cloud Kubernetes ServiceOracle Container Cloud ServiceSUSE CaaS PlatformPlatform9 Managed Kubernetes
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    It's a great product if you are in a Microsoft environment.It is highly available and secure.
  2. Good documentation and very straightforward to implement and use.
  3. IBM Cloud Kubernetes Service has enough flexibility that we needed.
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Containers as a Service (CaaS) Topics

Are containers IaaS or PaaS?

Containers are neither IaaS nor PaaS.

Infrastructure as a service (IaaS) is a cloud computing model where the vendor is responsible for hosting the infrastructure for their customers.

Customers or system administrators can access their designated IaaS cloud infrastructure through the internet to create and store web applications and store data.

Containers are a level above IaaS. IaaS platforms often provide the infrastructure (virtual machines and hardware) upon which containers are created and run.

Platform as a service (PaaS) is a cloud computing model where a third-party provider delivers a set bundle of hardware and software tools, such as databases, server space, and code compilers, for users over the internet. A PaaS system is geared for single specific applications and lacks the flexibility of containers, as they are dependent on specific hardware and runtime software.

Are containers SaaS?

Containers are not SaaS.

Software as a service (SaaS) is a service that offers on-demand online front-end user software. It is platform independent and doesn’t require local installation of software to run. All necessary resources are provided and managed by the vendor. The user can only use the “front-end” product provided by the service and cannot make any changes to the software behind the user interface.

Google Docs and Microsoft office 365 are popular SaaS platforms.

How does CaaS work?

Container platforms are software solutions that allow users to manage containerized applications.

Container engines and Container orchestrators are two types of widely used container applications.

  • Container engines, like Docker and Docker Enterprise Edition, provide a container runtime environment and allow users to create containers, manage container images, and perform basic operations.
  • Container orchestrators or container runtime interfaces (CRI)enable users to manage, scale, and automate multiple containers, such as Kubernetes, a widely-used container runtime interface.

Container applications that are used on live production environments usually consist of a cluster of several containers that can communicate with each other. These containers are often deployed across several environments and are managed by a container runtime interface.

To create the necessary containers, a container engine deploys an “image” file. An image file is a template with a list of dependencies and requirements necessary to run the application.

Once the image is deployed, a container bundled with the application and all its dependencies is created.

The container is a standalone executable software package and can run independently on any platform.

How does CaaS work?

Benefits of CaaS
Benefits of CaaS include:

  • Portable and platform independent: Containers carry all their dependencies with them. The software is written once and then run without needing to be re-configured across local computers or other online environments. Containers can easily be moved from server to server without any complications. DevOps teams know that their applications in containers will run the same way on any platform on which they are deployed.
  • Easy collaboration: Multiple employees can work with the same container code on their private computers. Once their work is complete, they can save the updated version online.

  • Lightweight: Containers use fewer resources and less disk space and run on a shared operating system. Therefore, they don’t require separate operating systems for your applications. Due to their small size, they start up quickly.

  • Shared infrastructure: There is less required maintenance on the user end and users pay only for the CaaS resources they use.

  • Stability: CaaS services are stable due to the provider’s support and management. CaaS providers generally handle most of the underlying system complexities, which makes it easier for companies to deploy and manage CaaS-based environments.

    Security: Because containers are isolated from each other, a damaged container will not affect other containers in the system.

  • Scalability: Containers make it easy to horizontally scale distributed applications. Containers can be duplicated to create more instances of the same application. It is also possible to configure the CaaS to run only the necessary number of containers while freeing up system resources.

  • Improved productivity: In a containerized system, developers and DevOp teams spend less time setting up background infrastructure and configuring multiple runtime environments, allowing them to spend more time creating and delivering new products and features.

  • Fast development: Creating containers using container software is a quick and easy process.
Why Consider Containers as a Service?

Companies with large online applications benefit from container services as they need to scale their services to accommodate multiple system demands.

Container as a service allows for agile and customized deployment, as well as the utilization of all the benefits of cloud servers without customers paying extra for the costs of an integrated platform. For very big companies, this can amount to savings of millions of dollars.

How to Choose a CaaS

There are many factors to consider when choosing the correct CaaS for your application, such as:

  • Support and documentation
  • Ease and speed of development
  • Pricing
  • Performance