According to a Gartner report, by 2028, over 95% of global organizations will have containerized applications running in production, a sharp rise from fewer than 50% in 2023. This surge in adoption means companies must have the right software in place to manage, monitor, and optimize containerized, cloud-native environments effectively.
However, the sheer variety of tools and platforms available makes it difficult for CTOs and enterprise architecture (EA) leaders to standardize processes and align environments. As container adoption grows, the variety of options available expands and can prolong the evaluation process and further complicate the task of selecting the right tools to support a cloud-native ecosystem.
Let's dive into the world of containers! Here's what you'll explore in this blog.
What are Containers?
Containers are lightweight, portable, and self-sufficient units that encapsulate software and its environment.
These containers allow developers to package applications and their dependencies into a single, portable unit. They can run consistently across different computing environments, making them incredibly useful for development, testing, and deployment.
The Power of Containerization
Containers are incredibly versatile, making them an ideal solution for a wide range of workloads and use cases, whether you're managing a small application or scaling to enterprise-level infrastructure.
By leveraging containers:
- Your team gains the foundation for modern, cloud-native development, allowing you to embrace agile practices like DevOps, and CI/CD, and even explore serverless architectures.
- Containers allow your development teams to package applications and all their dependencies into portable, lightweight units. This ensures consistent environments across development, testing, and production, dramatically improving team collaboration and reducing the likelihood of "works on my machine" issues.
- Containers also excel in integration use cases, allowing you to deploy integration technologies like Apache Kafka for real-time data streaming or other event-driven architectures. With containers, you can easily scale how your applications interact with data in real-time, ensuring seamless communication and data flow across your systems.
- Whether you’re running your application in a public cloud, a private data center, or even at the edge, containers ensure that your app runs consistently across all environments. This means less time spent troubleshooting compatibility issues and more time spent focusing on building and improving your product.
Tools and Resources for Smooth Implementation
Containers aren't a single, unified technology; instead, the ecosystem is a mix of various components that are all essential for ensuring production readiness. It involves several key technologies that work together to package applications and manage their deployment.
Here’s a breakdown of the main technologies involved in containerization:
1. Container Runtime
A container runtime is the software that executes containers. It allows developers to deploy applications, configurations, and other dependencies related to container images. It provides the necessary environment for containers to run on a host operating system.
Examples:
- Docker: The most widely used container runtime that allows developers to create, deploy, and manage containers easily.
- Podman: A daemonless alternative to Docker that focuses on security.
- containerd: An industry-standard core container runtime used by Docker and Kubernetes.
- CRI-O: A lightweight container runtime specifically designed for Kubernetes.
2. Container Orchestration Tools
These tools automate the deployment, scaling, and management of containerized applications across clusters of machines.
Examples:
- Kubernetes (K8s): The leading orchestration platform that automates the deployment, scaling, and management of containerized applications.
- Amazon Elastic Container Service (ECS): A fully managed container orchestration service provided by AWS.
- Docker Swarm: A native clustering tool for Docker that allows users to manage a cluster of Docker engines as a single virtual engine.
3. Container Images
A container image is a lightweight, standalone, executable package that includes everything needed to run a piece of software, including the code, libraries, dependencies, and runtime.
Examples:
- Dockerfile: A script containing a series of instructions on how to build a Docker image.
- Open Container Initiative (OCI): Provides specifications for container image formats and runtimes to ensure compatibility across different platforms.
4. Container Networking
Networking solutions allow containers to communicate with each other and with external systems securely and efficiently.
Examples:
- Flannel: A networking solution for Kubernetes that provides an overlay network.
- Calico: A networking and network security solution for containers that supports policy-based networking.
5. Storage Solutions
Persistent storage solutions are essential for storing data generated by applications running in containers.
Examples:
- Persistent Volumes in Kubernetes: Allow containers to access storage resources outside of their ephemeral lifecycle.
- Container Storage Interface (CSI): A standard for exposing storage systems to containerized workloads on Kubernetes.
6. Monitoring and Logging Tools
Tools that help track the performance of containerized applications and log events for troubleshooting.
Examples:
- Prometheus: An open-source monitoring tool designed for reliability and scalability in cloud-native environments.
some text - Container Storage Interface (CSI): A standard for exposing storage systems to containerized workloads on Kubernetes.
7. CI/CD Tools
Continuous Integration/Continuous Deployment tools automate the process of integrating code changes and deploying applications.
Examples:
- Jenkins: An open-source automation server that supports building, deploying, and automating software development processes in containers.
some text - GitLab CI/CD: Integrated CI/CD capabilities within GitLab that can be used to automate the deployment of containerized applications.
We’ve only scratched the surface with the tools we've discussed so far. To provide a broader perspective, here’s an image from Gartner that offers a comprehensive list of tools available in the market, categorized for various purposes.
Choosing the Right Containerization Platform for Your Business
Selecting the right containerization platform is crucial for ensuring your applications run seamlessly and integrate well with your existing infrastructure.
Here are some key factors to consider when choosing the platform that's best suited for your needs:
Key factors consideration for platform provider selection
When evaluating these platforms, IT leaders should consider the following critical factors:
- Ensure the platform supports efficient automation, robust security, and scalability across distributed environments.
- Look for platforms that allow seamless operation across both on-premises and multiple cloud environments
- Consider how well the platform supports edge computing, which is increasingly important for latency-sensitive applications.\
- Evaluate whether the platform supports serverless computing models for containers, which can reduce overhead and improve scalability.
- Ensure the platform meets your organization’s security standards and compliance requirements.
- Consider how well the platform supports updating and transforming legacy applications into modern cloud-native solutions.
- Prioritize platforms that provide both “inner loop” (development) and “outer loop” (deployment and operations) tools to streamline the developer experience.
- Service mesh capabilities are critical for managing microservices-based architectures. Consider counting on it as well.
- Open-source solutions can offer greater flexibility and community-driven innovation.
- Evaluate the platform’s pricing model to ensure it aligns with your organization’s budget.
Choosing the right provider
To make the best decision, IT leaders should match platform capabilities with their infrastructure requirements, security protocols, budget constraints, and application modernization goals.
It’s essential to also consider open-source integration options, as many organizations leverage open-source technologies for greater flexibility and control.
Here are some recommendations that will help you move the wheels in your decision-making process.
- If possible, try to standardize on a single platform across your organization. Doing so helps create architectural consistency, makes it easier to share operational knowledge, simplifies workflows for developers, and can even bring cost advantages through sourcing.
- To make an informed choice, build a decision matrix that evaluates different platform providers based on the factors that matter most to your business. This will help you objectively compare options and ensure you're considering everything from security to scalability.
- Ultimately, it’s crucial to put developers' needs front and center. A platform that doesn’t prioritize operational simplicity and a smooth developer experience will likely lead to frustration, slow adoption, and, in the worst case, failure.
By following these recommendations, organizations can make more strategic, well-informed decisions about which container platform will best support their cloud-native architecture and business goals.
Common Mistakes to Avoid
When adopting containerization for application development and deployment, businesses must navigate various challenges to ensure a successful transition and implementation. Below are key mistakes to avoid.
Common mistakes to avoid when adopting containerization for app development
Pitfall 1 - Neglecting security
Orchestration platforms don't provide the full security required by enterprises. Consider developer workflow for building container images. Ensure to control which image runs in production. Also, remember to automatically notify and remediate issues running in the environment to ensure security.
Pitfall 2 - Rushing instead of building gradually
Organizations try to solve the entirety of the container platform problem in one single bang. This leads to overanalyzing, lack of innovation, and shadow IT. Consider the big picture, but create the roadmap for incremental small wins.
Pitfall 3 - Underestimating operational overhead
Containerization can introduce new operational complexities that might not have been anticipated. Container orchestration platforms like Kubernetes require expertise in cluster management, scaling, and monitoring. The need for additional tools for logging, monitoring, security, and CI/CD can add overhead if not properly planned.
Pitfall 4 - Overlooking multi-cloud and hybrid strategies
Many organizations start with containerization in one cloud environment, only to face challenges when expanding or migrating to other platforms. Relying too heavily on a single cloud provider’s container services can limit flexibility and create long-term dependencies.
Managing containers across multiple clouds or on-premises systems can be complex without the right strategy and tools. Plan for multi-cloud compatibility and hybrid deployments from the start.
Containerization Use Cases for Businesses
A key secret sauce that all CTOs must know is to containerize, no matter your size. Common use cases of containers include
- Micro Services Architecture
- Cloud Migration
- DevOps Enabler
- Application Portability
- Legacy App Modernization
Containers provide unparalleled flexibility, scalability, and efficiency, making them essential for modern IT infrastructure. Here’s a deep dive into common use cases of containerization:
- Micro Services Architecture - Containerization is the foundation of microservices architecture. By breaking down large, monolithic applications into smaller, independent services, organizations can achieve greater agility and scalability.
- Cloud Migration - One of the most significant challenges in cloud migration is ensuring applications work seamlessly in cloud environments. Containers resolve this issue by creating consistent, portable environments that can run anywhere, whether on-premises or in the cloud
- DevOps Enabler - DevOps practices revolve around collaboration, automation, and continuous delivery goals that are naturally supported by containerization. Containers streamline the development-to-production pipeline.
- Application Portability - In today's multi-cloud, hybrid-cloud, and on-premises environments, application portability is critical for ensuring flexibility and reducing vendor lock-in. Containers excel in this area.
- Legacy App Modernization - Modernizing legacy applications is a complex process, but containerization can help extend the life of legacy systems while making them more agile and scalable.
Regardless of your organization’s size, containerization offers a unified approach to solving some of the most pressing IT challenges, from adopting microservices to migrating to the cloud and modernizing legacy systems.
Based on your organization’s size here’s the type of use cases that you may come across.
Use cases for startups
Containers enable startups to accelerate development and time-to-market. They isolate infrastructure, allowing startups to run multiple projects without conflicts. With quick deployment and rollback capabilities, startups can respond rapidly to changing conditions.
However, startups should avoid containers if they lack system administration expertise or the application is too complex.
Use cases for medium-sized enterprises
Medium-sized enterprises can leverage containers for cloud-like agility without full cloud migration.
Containers optimize on-prem infrastructure and support continuous operations, reducing downtime by distributing workloads across machines. With Docker monitoring, performance tracking ensures high uptime and scalability.
Containers enable fault-tolerant systems and efficient management of workloads, making them ideal for businesses seeking streamlined operations and reliability.
Use cases for large enterprises
For large enterprises, containerization facilitates legacy application modernization, scalability, and digital transformation. Containers improve portability and make legacy systems compatible with modern tech stacks. They also enhance DevOps processes, ensuring seamless collaboration between development and operations teams.
How to Determine if Your Application is a Good Fit for Containerization
The question of whether to containerize or not remains a common dilemma for many organizations. While migrating traditional monolithic workloads to the cloud may seem like an appealing strategy, it's crucial for businesses to carefully evaluate whether such a move is truly the best course of action.
Here are some key questions to ask yourself before deciding to containerize your application.
- Is your application composed of microservices?
- Do you need scalability and flexibility?
- Is portability important?
- Do you have dependencies that need isolation?
- Is continuous deployment or integration part of your workflow?
- Do you need easy rollbacks and versioning?
- Is your application stateless?
- Do you need to support multiple languages or frameworks?
- Are you looking to automate infrastructure management?
- Are you concerned about resource efficiency?
If you answered yes to most of these questions, it's a green flag to proceed with containerizing your application. Otherwise, it might be wise to pause and carefully consider a strong reason or driving factor for making the move.
Ultimately, the decision should be based on whether your application aligns with the core benefits of containers: portability, scalability, flexibility, and isolation. If it does, then containerization is a good fit.
Containerization Assessment Framework
Here’s a Containerization Assessment Framework that offers a structured approach to evaluate customers’ unique application portfolios and identify which applications are ideal candidates for containerization.
The key components of this framework include:
- Container Evaluation: Evaluate whether applications are suitable for containerization based on their characteristics and requirements.
- Tech Stack Analysis: Identifying the most appropriate technology stack and other services to support containerized applications.
- Architecture Blueprint: Designing a scalable reference architecture of containerized applications that aligns with best practices and scalability.
- Modernization Opportunities: Offering insights into potential modernization opportunities for each application, based on its current architecture and technology stack.
- Migration Effort Estimation: Estimating the resources and effort required for each application’s migration to a containerized environment.
- Migration Strategy: Developing a detailed migration plan and grouping applications into logical sets for a structured, efficient transition to the cloud.
A Roadmap for the Container Adoption Journey
Container adoption is not a one-time shift but an evolving process that grows in complexity as your organization matures technically. The journey involves multiple stages, each with its own set of challenges, learnings, and advancements.
Below is an overview of the common stages of container adoption maturity, highlighting the key milestones businesses typically see along the way.
Exploration: Laying the Foundation
In the exploration phase, the focus is on understanding the value of containerization and building the foundation for its successful adoption. Organizations should start by investing in IT infrastructure and upskilling their workforce. This includes introducing key technologies and building a knowledge base around containers, Kubernetes, and container orchestration tools. The goal is to establish an initial understanding of how containers can improve application deployment, scalability, and flexibility.
Key Actions:
- Invest in IT infrastructure to support container workloads.
- Begin training and upskilling your team on containerization tools and best practices.
- Develop an understanding of containerization's role in supporting future growth and modernization.
Initial Trial: Starting with Pilots
At this stage, containerization becomes an official, sanctioned initiative. Organizations begin running pilot projects to validate the technology and its benefits. This phase is about testing containerization in real-world scenarios and determining which workloads or applications are most suited to containers. We should develop a clear transformation roadmap, establish metrics for measuring success, and create a methodology to calculate the return on investment (ROI) for container adoption.
Key Actions:
- Launch pilot projects to test containerization on select applications.
- Plan the transformation roadmap, identifying priority use cases.
- Develop a methodology to track ROI and project outcomes.
Limited Production Migration: Securing and Optimizing
With initial successes from pilot projects, organizations move into the limited production migration phase. At this stage, we should focus on securing their container ecosystem according to best practices. It’s also important to explore opportunities for cost optimization by evaluating resource consumption and analyzing toolsets that can provide operational efficiencies. Market research on potential tools and platforms for adoption should also be conducted to ensure you are using the right resources as you scale.
Key Actions:
- Secure the container ecosystem and ensure compliance with security standards.
- Identify and implement cost optimization opportunities through container orchestration.
- Evaluate and select tools for scaling container management and monitoring.
Expansion: Scaling and Building Confidence
The expansion phase is when containerization begins to scale within the organization. Confidence in the technology grows as more teams adopt it, and the benefits of containerization become clearer. To continue scaling successfully, it is essential to ensure that complementary technologies—such as microservices and cloud-native architecture—can grow alongside your containerized projects. Additionally, you should focus on building trust and buy-in from leadership by highlighting the operational benefits and demonstrating the tangible ROI of containers.
Key Actions:
- Secure buy-in and support from agency leadership.
- Scale adoption of container technologies across different teams and projects.
- Conduct benefit analysis and prove ROI through successful containerization cases.
Enterprise-wide Adoption: Standardizing and Integrating
At the enterprise-wide adoption stage, containerization is now integrated into all major systems and applications. Organizations must add additional tooling to manage and monitor containerized workloads at scale, ensuring that all systems are aligned and work together cohesively. A robust Container Management Architecture (CMA) is essential to handle the full spectrum of containerized services. Standardized workforce training programs should also be established, with a focus on developing a proactive, skilled workforce capable of handling cutting-edge tools and technologies.
Key Actions:
- Integrate additional tooling to support full container management across the enterprise.
- Build and standardize workforce training programs to upskill employees on containerization tools and techniques.
- Ensure scalability by aligning adoption efforts with strategic goals and expanding containerization to all business functions.
Containerization Adoption Readiness Cues
Operational maturity in containerization is about ensuring that both people and processes are ready to manage containerized environments effectively. It involves four key dimensions: personal readiness, organizational readiness, application readiness, and technology readiness.
Personal Readiness
The team must have solid expertise in Kubernetes, Docker, and Linux. From basic container orchestration to advanced networking and storage, team members need to be well-versed in managing containerized environments.
Organizational Readiness
The organization should have the right structure and culture, such as adopting DevOps, SRE, or platform engineering approaches. Teams should be aligned to support containerized platforms with proactive monitoring, policy management, and self-service capabilities.
Application Readiness
Applications should be evaluated for containerization based on their architecture, scalability, and statefulness. 12-factor apps are ideal candidates, while legacy systems may need refactoring for a containerized environment.
Technology Readiness
The infrastructure and tools supporting containers, such as Kubernetes, monitoring systems, and cloud integration, must be mature enough to handle production workloads. This includes assessing container orchestration, security, and scalability features.
Measuring the Costs Involved in Container Deployments
Let's outline all the costs associated with your containerization initiative. This includes both direct and indirect costs.
Direct Costs:
- Tooling and Infrastructure Costs: Costs for containerization platforms (e.g., Docker, Kubernetes), container orchestration systems, cloud hosting services, storage, and compute resources.
- Training and Skill Development: Investment in training your teams (DevOps, developers, operations) to use and manage containers effectively.
- Migration Costs: The cost of refactoring existing applications, adapting them for container environments, and potential redesign efforts if transitioning from monolithic to microservices architectures.
- Licensing Fees: If you use third-party tools or platforms for managing containers, there might be licensing or subscription fees.
Indirect Costs:
- Time and Resource Investment: The time your team spends learning new technologies, testing, and troubleshooting.
- Consulting or External Expertise: If you engage consultants or external vendors for setup or migration, these costs should be factored in.
By understanding your costs, measuring the impact across various areas of your business, and using ROI calculations to track progress, you can make informed decisions about the long-term value of containerization.
Evaluating Containerization Platforms - Top 5 App Containerization Service Providers with their Offerings:
Here’s a rundown of the top 5 service providers along with the offerings they provide. And a small note about each of them.
1. AWS
Offerings: Amazon Elastic Kubernetes Service (EKS), Amazon Elastic Container Service (ECS), AWS Fargate
Amazon EKS is a fully managed Kubernetes service, while ECS is AWS’s own container management service. AWS Fargate offers serverless containers, where you don’t need to manage the underlying servers.
2. Google
Offerings: Google Kubernetes Engine (GKE), Cloud Run, Anthos
Google Kubernetes Engine (GKE) is one of the most popular managed Kubernetes services available. Cloud Run allows you to run containers in a fully managed, serverless environment. Anthos is Google’s hybrid and multi-cloud solution for managing Kubernetes clusters across environments.
3. Microsoft Azure
Offerings: Azure Kubernetes Service (AKS), Azure Container Instances (ACI), Azure Red Hat OpenShift
AKS is Azure’s managed Kubernetes offering, while ACI allows for running containers without managing servers, providing a serverless container experience. Azure also offers Azure Red Hat OpenShift for Kubernetes-based container orchestration, developed in partnership with Red Hat.
4. IBM Cloud
Offerings: IBM Cloud Kubernetes Service, IBM Cloud Code Engine, Red Hat OpenShift on IBM Cloud
IBM offers a fully managed Kubernetes service through the IBM Cloud Kubernetes Service, as well as a serverless container platform through IBM Cloud Code Engine. IBM also provides Red Hat OpenShift on its cloud for enterprise Kubernetes workloads.
5. Oracle Cloud
Offerings: Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE), Oracle Cloud Functions, Oracle Cloud Container Registry
Oracle’s OKE is a fully managed Kubernetes service, and it integrates well with Oracle’s cloud-native services, databases, and applications. Oracle Cloud Functions supports serverless container workloads, and the Oracle Cloud Container Registry stores container images.
Containers in Comparison to Other Approaches
Containerization, Virtual Machines (VMs), Serverless Computing, and Cloud-Native Architecture are all distinct approaches to deploying and managing applications, each with its strengths and best-use cases.
Let's take a quick comparison between them.
Containerization vs Virtual Machines
Containerization is a more efficient and lightweight alternative to virtual machines. Unlike VMs, which require a full operating system to run each application, containers share the host OS kernel, allowing them to use fewer resources and start much faster.
Containers isolate applications at the process level, which reduces overhead and resource waste while providing greater portability across environments.
Containerization vs Serverless Architecture
Serverless computing abstracts infrastructure management by automatically scaling applications based on demand, charging only for actual usage. This makes it ideal for event-driven or stateless applications.
In contrast, containers give developers more control over the environment, providing a consistent runtime and enabling the packaging of applications with their dependencies for portability across different systems or cloud platforms.
Containerization vs Cloud Native
Cloud-native applications are built using a set of technologies and practices that optimize them for cloud environments. Containerization is a key building block of cloud-native development, enabling the creation of microservices that are lightweight, scalable, and portable.
Along with other cloud-native technologies like service meshes and APIs, containers allow applications to be modular, resilient, and able to dynamically scale in cloud environments.
Containerization Best Practices
Containerization offers incredible benefits in terms of portability, scalability, and efficiency, but to fully unlock these advantages, it’s important to follow best practices when developing, deploying, and managing containers.
Here are some of the best practices to follow while planning to implement a containerization strategy in your application.
1. One application or component per container
Each container should ideally run one application or one component to adhere to the single responsibility principle. This makes your containers easier to manage, scale, and debug.
By isolating each service or component in its own container, you also improve fault tolerance—if one container fails, others remain unaffected.
2. Reduce image size
Smaller images mean faster deployments, quicker startup times, and less overhead in terms of storage and transfer. Minimize your image size by:
- Removing unnecessary files and dependencies.
- Using multi-stage builds to separate the build environment from the runtime environment.
- Leveraging minimal base images like Alpine Linux or Distroless to keep the image size small without sacrificing functionality.
- Reducing the image size also limits the attack surface, which can help mitigate security risks.
3. Regular scans and updates
Security should be a continuous process. Run regular vulnerability scans on your container images to detect known threats. You can use tools like Clair, Trivy, or Anchore to scan for vulnerabilities. Always apply security patches to your base images and dependencies to minimize the risk of exploitation.
4. Log and monitor for visibility
Build robust logging and monitoring into your container architecture from the start. Containers can be ephemeral, which can make debugging and maintaining operational visibility a challenge.
Implement centralized logging systems (like ELK Stack or Fluentd) and monitoring tools (such as Prometheus or Grafana) to track container health, performance, and cluster operations. This helps ensure the overall health of your container orchestration environment.
5. Optimize for build-cache efficiency
To speed up your container builds and reduce deployment times, make the most of Docker’s build cache. By organizing your Dockerfile and using layered builds intelligently, Docker can cache parts of the build that haven’t changed, avoiding the need to rebuild everything from scratch every time.
Emerging Trends Around Containers
Over the years, the container ecosystem has evolved significantly, with several key technologies and tools shaping its development. Docker was a major game-changer, simplifying container creation and deployment through its Docker Engine and Docker Hub—a public registry for sharing container images. The introduction of Dockerfile and the container image format set new standards for defining and building containers.
As the technology matured, managing containers at scale became a primary focus. This need led to the rise of orchestration platforms like Kubernetes, Docker Swarm, and Mesos, which enable automated deployment, scaling, and management of containerized applications across clusters of hosts.
In recent years, serverless architectures and Functions as a Service (FaaS) have emerged, pushing the boundaries of containerization even further. These models enable even more granular computing, breaking applications into individual functions that can be executed on demand, offering increased flexibility and efficiency in cloud-native environments.
- Docker will increasingly support AI and ML workflows by providing consistent environments, with specialized features catering to the unique needs of AI/ML applications.
- Docker's role will grow in edge environments, providing lightweight, secure containers for distributed compute resources closer to data sources, such as IoT devices and edge networks.
- The future may see Docker combining the portability and consistency of containers with the serverless abstraction of infrastructure management, offering a hybrid solution for developers.
- Expect Docker to advance security with automated scanning, runtime protection, and secure supply chains to address the growing complexity of distributed systems.
- Docker will enhance cross-platform compatibility and orchestration, enabling seamless management of containerized workloads across various cloud environments.
- The Docker community will continue to drive innovation, ensuring the platform evolves with user needs and stays at the forefront of containerization technology.
- Docker will play a key role in developing standards and best practices to promote interoperability and prevent fragmentation in the container ecosystem.
How Ideas2IT can Help with your Containerization Journey
We work with you to develop a clear, actionable roadmap that drives your containerization journey, ensuring smooth migration and deployment across your organization.
Whether you're navigating the complexities of cloud migration, optimizing your DevOps processes, or modernizing legacy applications, we help you embrace change and leverage containerization to its full potential.
By streamlining your infrastructure and improving scalability, we empower your team to work smarter. Ready to unlock the power of containerization for your business?
Contact us today to begin your transformation.As container and cloud technologies continue to mature, CTOs face a range of software, staffing, and architectural challenges to ensure smooth operations and integration across systems.