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CRI-O VS Apache CloudStack

Compare CRI-O VS Apache CloudStack and see what are their differences

CRI-O logo CRI-O

Lightweight Container Runtime for Kubernetes

Apache CloudStack logo Apache CloudStack

CloudStack is an open source cloud computing software for creating, managing, and deploying infrastructure cloud services.
  • CRI-O Landing page
    Landing page //
    2023-09-21
  • Apache CloudStack Landing page
    Landing page //
    2023-03-31

CRI-O features and specs

  • Lightweight
    CRI-O is designed to be a minimal container runtime, which means it has a smaller footprint compared to other runtimes like Docker. This can result in lower memory and CPU usage, contributing to better performance and efficiency.
  • Kubernetes Integration
    CRI-O is built specifically to integrate seamlessly with Kubernetes, implementing the Kubernetes Container Runtime Interface (CRI). This ensures better compatibility and more tailored features for Kubernetes environments.
  • Security
    CRI-O is designed with security in mind and minimizes the attack surface by strictly following the principle of least privilege. It also supports compatibility with various security frameworks, such as SELinux and AppArmor.
  • Vendor Neutral
    CRI-O is an open-source project under the Cloud Native Computing Foundation (CNCF), meaning it is vendor-neutral and has a diverse community contributing to its development. This decentralization helps in avoiding vendor lock-in.
  • Pluggable CNI
    CRI-O supports Container Network Interface (CNI) plugins out of the box, providing flexibility in choosing different network providers based on specific use-case requirements.

Possible disadvantages of CRI-O

  • Limited Features
    Because CRI-O is designed to be lightweight and minimalist, it lacks some of the extensive features offered by more comprehensive container solutions like Docker. Features like image building may require additional tools.
  • Community and Ecosystem
    While CRI-O is gaining popularity, it does not yet have as robust a community or ecosystem as Docker, potentially resulting in fewer available third-party tools and integrations.
  • Complexity for Beginners
    CRI-O may not be the most beginner-friendly environment due to its specific focus on Kubernetes integration and lack of standalone features like Docker Compose. Newcomers might find the learning curve steeper.
  • Debugging Tools
    The ecosystem around CRI-O is still maturing, and dedicated debugging tools are less comprehensive compared to other container runtimes like Docker, which could pose challenges in troubleshooting.
  • Release Cycle
    CRI-O's release cycle is tightly aligned with Kubernetes releases, which can be a double-edged sword. While it ensures compatibility, it also means that businesses must keep their CRI-O and Kubernetes versions in sync.

Apache CloudStack features and specs

  • Open Source
    Apache CloudStack is open source, meaning there is no licensing cost and the community can contribute to its development, which fosters innovation and adaptation.
  • Hybrid Cloud Capability
    It supports hybrid cloud environments, allowing for integration with public cloud providers and providing flexibility in managing diverse resources.
  • Scalable
    CloudStack is designed to handle large deployments, making it suitable for scaling from small to very large cloud deployments.
  • Multi-Hypervisor Support
    Supports multiple hypervisors like VMware, KVM, and XenServer, providing freedom to choose the underlying virtualization technology.
  • Robust API
    Offers a comprehensive and robust API, which facilitates automation and integration with other systems and tools.

Possible disadvantages of Apache CloudStack

  • Steep Learning Curve
    Due to its vast array of features and complex architecture, it can be challenging for newcomers to grasp and configure efficiently.
  • Community Support
    While there is a community for support, it might not be as extensive or responsive as commercial solutions with dedicated support.
  • Limited Advanced Features
    Compared to some commercial cloud platforms, Apache CloudStack may lack certain advanced features or cutting-edge integrations.
  • Upgrading Complexity
    Upgrading existing deployments can be complex and may require significant planning to ensure smooth transitions without downtime.
  • Customization Challenges
    Although highly configurable, customizing CloudStack for specific needs might require deep expertise and can be resource-intensive.

Analysis of CRI-O

Overall verdict

  • CRI-O is considered a good choice for users who are running Kubernetes and prefer a streamlined, Kubernetes-native container runtime. Its compatibility with Kubernetes standards and its focus on using lightweight components make it a reliable option for a Kubernetes environment.

Why this product is good

  • CRI-O is an open-source container runtime specifically focused on providing a lightweight, minimal and stable runtime environment for Kubernetes. It is designed to meet the Container Runtime Interface (CRI) which enables Kubernetes to use different container runtimes. CRI-O simplifies the stack by using existing Open Container Initiative (OCI) projects which reduces overhead and complexity. It benefits from Kubernetes integration, offering security and performance optimizations tailored for Kubernetes workloads.

Recommended for

  • Organizations using Kubernetes as their primary container orchestration system.
  • Teams looking for a minimal and stable runtime compatible with the Kubernetes CRI.
  • Developers who need a runtime that integrates seamlessly with Kubernetes tools and workflows.
  • Projects that prioritize security and compliance with OCI standards.

CRI-O videos

Running Containers on Podman/CRI-o - Introduction working with Podman containers

More videos:

  • Tutorial - CRI-O: Development Process & How to Contribute - Urvashi Mohnani & Peter Hunt, Red Hat
  • Review - CRI-O: O Container Runtime feito para o Kubernetes

Apache CloudStack videos

Apache CloudStack - Storage - Snapshots - Code Review

More videos:

  • Review - #14 | #ACSarchives: Apache CloudStack | Storage, Snapshots & Code Review
  • Tutorial - Apache Cloudstack Tutorial: What is Apache Cloudstack Part - 2

Category Popularity

0-100% (relative to CRI-O and Apache CloudStack)
Cloud Computing
64 64%
36% 36
OS & Utilities
84 84%
16% 16
VPS
0 0%
100% 100
Developer Tools
100 100%
0% 0

User comments

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Social recommendations and mentions

Based on our record, CRI-O should be more popular than Apache CloudStack. It has been mentiond 21 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

CRI-O mentions (21)

  • We clone a running VM in 2 seconds
    Yes - using Cri-o[0] or docker checkpoint/restore api (which uses cri-o) [0] - https://cri-o.io/. - Source: Hacker News / over 1 year ago
  • Top 8 Docker Alternatives to Consider in 2025
    CRI-O provides a lightweight container runtime specifically designed for Kubernetes, implementing the Container Runtime Interface (CRI) with optimized performance. - Source: dev.to / over 1 year ago
  • 7 Best Practices for Container Security
    Container engine security focuses on the underlying runtime system that manages and executes containers, such as Docker, containerd, or CRI-O. These container engines are responsible for interfacing with the operating system kernel to provide the isolated environments that containers run within. - Source: dev.to / almost 2 years ago
  • 5 Alternatives to Docker Desktop
    Minikube supports various container runtimes, including Docker, containerd, and CRI-O, allowing flexibility in the development environment. - Source: dev.to / about 2 years ago
  • The Road To Kubernetes: How Older Technologies Add Up
    Kubernetes on the backend used to utilize docker for much of its container runtime solutions. One of the modular features of Kubernetes is the ability to utilize a Container Runtime Interface or CRI. The problem was that Docker didn't really meet the spec properly and they had to maintain a shim to translate properly. Instead users could utilize the popular containerd or cri-o runtimes. These follow the Open... - Source: dev.to / over 2 years ago
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Apache CloudStack mentions (6)

  • Linux from the user's perspective - Part1: Installing Linux
    Xen + CloudStack - you'll know if you need it. - Source: dev.to / about 1 year ago
  • Continuing the Search: Open-Source Alternatives to AWS Services
    You can try https://cloudstack.apache.org which has a great UI, CLI, APIs, tooling (Ansible, Terraform etc.) and support for CloudStack Kubernetes Service and CAPC (https://cluster-api-cloudstack.sigs.k8s.io/). CloudStack is also supported by AWS EKS-A. Source: about 3 years ago
  • Common OpenSource Cloud OS
    CloudStack is cloud computing software for creating, managing, and deploying public as well as private IaaS clouds. It uses several hypervisors such as KVM, vSphere, and XenServer/XCP for virtualization. It supports some key features such as hypervisor agnostic, snapshot management, usage metering, built-in HA for hosts and VMs. Source: over 3 years ago
  • Ask HN: Who is hiring? (October 2022)
    ShapeBlue | Remote (Europe/Asia/Flexible timezones) | Dev and QA engineers | Full time | https://shapeblue.com Hi all, ShapeBlue is a remote-only 100% employee-owned international business ( more on this on https://www.shapeblue.com/shapeblue-has-become-an-employee-owned-business/ ). We are hiring devs and QA engineers to work on opensource Apache Cloudstack ( see https://cloudstack.apache.org ... - Source: Hacker News / almost 4 years ago
  • what do they use, or how do they do it..
    The big providers like AWS, GCP, Azure, all have fully custom solutions for the whole infrastructure. But there exist a number of open source projects which give you the ability to setup the basics (compute, storage, networking) on your own. A few such infrastructure projects I'm aware of: * Cloudstack * Openstack * Eucalyptus. Source: over 4 years ago
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What are some alternatives?

When comparing CRI-O and Apache CloudStack, you can also consider the following products

containerd - An industry-standard container runtime with an emphasis on simplicity, robustness and portability

OpenStack - OpenStack software controls large pools of compute, storage, and networking resources throughout a datacenter, managed through a dashboard or via the OpenStack API.

Podman - Simple debugging tool for pods and images

XenoNode - XenoNode is one of the leading cloud solutions providers that have employed the best cloud services providers to ensure the quality performance all with peace of mind at very affordable pricing.

Apache Karaf - Apache Karaf is a lightweight, modern and polymorphic container powered by OSGi.

OVH Cloud - OVHcloud provides cloud solutions to meet all of your IT needs. With cutting edge cloud technology, come view our solutions by industry or use case.