Docker on CentOS Reviews

My main use case for Docker on CentOS is building a four-tier project on my PC.

I use Docker on CentOS by installing Docker to manage the Docker files and also to manage my applications, websites, and MySQL from CentOS.

The best features Docker on CentOS offers in my experience are its speed and smooth operation, along with the fact that there is no need to add a repository, and it is free. I can use the repository to download any repository, which is why I use those features. CentOS is free, and I have used it to practice for my exams and to build my four-tier project.

I chose a seven out of ten because Docker on CentOS is very fast and smooth. However, it also needs to improve its security, upgrade the packages, and fix bugs, which is why I deducted three points. It should also provide more updatable features.

Regarding Docker on CentOS's AI capabilities, if I am using it for a banking project, I think we need higher security to prevent hacking and direct attacks on servers. That is why we need to upgrade security on CentOS 9 and develop CentOS 10, an upgraded version, for more feature support and ease of use.

I think it would be very helpful to bring in AI to know more about CentOS 9 and the hidden features it offers.

I have been using Docker on CentOS for the past two years.

Docker on CentOS has positively impacted me by allowing me to upgrade to CentOS 9 to build more security and also manage subscriptions, which sometimes are free but not for organizations. I need to keep the subscription to access more packages and features in the subscription manager, as they do not always provide everything for free.

Docker on CentOS is deployed in my organization using both private and public clouds, as we normally use CentOS 9 for the UAT servers and proxy servers. We are using AWS and Azure for our public and private cloud deployments. I purchased Docker on CentOS through the AWS Marketplace.

I recommend that others looking into using Docker on CentOS consider that I have also recommended CentOS 9 to my colleagues for learning for their exams at no cost to build their skills.

It is important to build on CentOS and to bring in new versions, such as CentOS 9 and CentOS 10, for higher capabilities and features. I would rate Docker on CentOS overall as a seven out of ten.

My main use case for Docker on CentOS involves multipurpose things that are not specific to an application. There is multi-staging build, and there are more considerations, such as PHP, Python, Node, and Java applications, so there are multiple things involved.

I am primarily building multi-staging builds for the front-end type of application with Docker on CentOS to optimize the Docker image. This is the basic use case I am using, but apart from this, there are many more things I am utilizing.

The features Docker on CentOS offers are not something I categorize as best; things are common for my use cases.

I use basic functionality, but mainly no one is implementing isolation and security user-specific details. However, I am using user-specific details to prevent hacking, along with containerization.

Docker on CentOS has not positively impacted my organization in metrics such as time saved, cost reduction, or improved efficiency, as it is basically the same in every environment. Comparatively, whether using an Ubuntu machine or a Graviton machine, I find there is a difference between Graviton and CentOS, but on CentOS, I am primarily using YUM packages. Deploying my application on any platform such as CentOS or Ubuntu feels similar; therefore, there is not a significant consideration regarding metrics.

Docker on CentOS can be improved by using XFS, ftype, and overlay storage drivers for faster storage. I can move data more effectively and limit container logs, along with CPU and memory limits. These are basic enhancements I can use on every platform such as Ubuntu, showcasing similarities between CentOS and Ubuntu regarding such improvements.

Needed improvements for Docker on CentOS include better POC, searching techniques, and leveraging AI because AI can provide insights into standard practices, compliance, user specifications, security, logging, monitoring, and isolation. These improvements can help provide better Dockerfiles and Docker Compose files for developers, especially in this AI-trending market.

I have been using Docker on CentOS for quite a long time, around five to six years.

My usage of features such as Docker on CentOS depends on various factors, and I am not using it only on CentOS; I am also using Amazon ECS Fargate where I deploy my containers using managed container services. I am not using Docker Swarm because of multiple platforms available for container management. That is why I do not use Docker on CentOS exclusively, but it is basically defined by AWS itself, so I do not need to manage auto-scaling. For EC2 machines, I can handle things manually via command lines, making deployment easy without significant issues.

I use Docker Compose as well with Docker on CentOS, and in the Dockerfile, I am using Alpine, which includes security features and user-specific details. There is no specific thing; based on our needs and tech stack, I am implementing solutions, focusing on optimization and flexibility.

I would give Docker on CentOS an eight or nine because since the beginning, I have used Docker in this particular CentOS environment, and then moved on to Ubuntu and ECS Fargate. Across all these environments, I notice the same issues without significant problems. The main differences are in package management commands; CentOS uses YUM while Ubuntu utilizes APT for package installations, making everything else on Docker quite similar across platforms, which is why I assign it an eight to nine rating. Docker on CentOS is indeed great; it is not only about CentOS.

Regarding Docker on CentOS's AI capabilities, I believe Docker itself does not provide AI security controls. From a security perspective, Docker helps by isolating AI workloads in containers, controlling resource usage, enforcing image scanning, and maintaining supply chain security. I also believe it applies network and access control, but there is no direct built-in feature of AI.

Concerning the accuracy and reliability of output from Docker on CentOS and its AI capabilities, I consider that Docker on CentOS lacks AI features as it is a container platform and not an AI model. The accuracy depends on the AI application running inside the container, not on Docker or CentOS itself. Docker improves reliability by offering a consistent and reproducible runtime environment, but output accuracy still relies on the model's data, prompts, and configurations used by AI applications. Docker does not validate or fact-check AI responses because it just runs isolated containers. However, deploying an AI agent within a container can help monitor other containers and responses, such as using Homeless GPT.

My advice for others looking into using Docker on CentOS includes considering version support and ensuring images are regularly patched and trusted. Whenever needed, I suggest using Alpine optimized images, enabling the image scanning process during deployment, and running containers with the least privileges to avoid unauthorized access within the container, while also limiting CPU and memory resources. It is important to consider volume mounting and backups, use logging and monitoring features for containers and hosts, and keep Docker engines and container images up to date with the latest dependencies to prevent hacking. Additionally, employing image versioning and maintaining isolated network environments is crucial, along with testing deployments separately from production environments. I would rate Docker on CentOS an eight out of ten.

My main use case for Docker on CentOS is for a containerization platform, packaging applications with their dependencies for lightweight and portable containers.

A quick, specific example of how I use Docker on CentOS for containerization is that we have dockerized our frontend, backend, and database into containers, and we have hosted them using Docker on CentOS. We have multiple software images for availability and for application uptime, and it is lightweight.

The best features Docker on CentOS offers are its lightweight and fast nature, with containers sharing the OS kernel, making it faster than VMs and providing quick startup time. It also ensures a consistent environment where applications will work on every machine, not just the developer's machine, and offers resource efficiency, such as no full OS per application, allowing me to share my infrastructure with multiple containers and applications. Additionally, it provides easy deployment and scaling.

The most valuable features to me in my daily work are all of the following: lightweight nature, consistent environment, resource efficiency, and easy deployment. We do not need to worry about our source requiring more memory; it is lightweight and fast, and the deployment does not take much time. If we want to scale our infrastructure, we can just create a new Docker image and it will scale, so all of those features are important to us.

Docker on CentOS has positively impacted my organization because we do not need much resource per application, and our deployment time has decreased, allowing us to avoid using more VMs to host our applications. Regarding the decrease in deployment time, I am saving 30 to 40 percent of our time, and before Docker, we had been using 10 to 20 VMs, but after that, it has become half, approximately 10 or 11 VMs.

Docker on CentOS can be improved by addressing security concerns, such as sharing the kernel, which leads to weaker isolation than VMs. Sometimes misconfiguration can happen, such as using ports or other networking issues. Currently, as I have heard, Docker on CentOS is not officially supported, so I am considering whether there are alternatives or not.

I have been using Docker on CentOS for two years.

Docker on CentOS is stable, but as I mentioned, there are some improvements needed, and after that, I hope it will be good.

Docker on CentOS's scalability is good; if we need more resources, we can just spin up a new Docker image, so scalability is good.

I previously used VMs, but they were expensive, and it was an overhead for us to manage, so that is why we switched to Docker on CentOS.

After switching to Docker on CentOS from VMs, I have seen a return on investment, saving 40 to 50 percent of our money as well.

My experience with pricing, setup cost, and licensing is that there is no licensing in Docker on CentOS, and the setup is easy; we just need to create the images for our application, so it is easy.

Before choosing Docker on CentOS, I did not evaluate other options because we had a clear mindset that we wanted to use Docker on CentOS. We saw the public review, so that is why we thought we wanted to use Docker on CentOS only.

My advice to others looking into using Docker on CentOS is that if they want to containerize an application, make their deployment easy, avoid VM management overhead, and save costs, they can use Docker on CentOS. I would rate this product an 8 out of 10.

My main use case for Docker on CentOS is building a proof of concept web application for a few months.

In my opinion, the best features Docker on CentOS offers are limited right now due to its deprecation about a year and a half ago, which presents a lot of security risks. However, it previously had a huge documentation base because it was the industry standard for years, was very resource-efficient, and had a reliable file system from being derived from Red Hat Enterprise.

Docker on CentOS did not benefit my organization all that much because it was in a deprecated state when I was using it, which is why I quickly stopped using it due to the security vulnerabilities.

If Docker on CentOS were still actively supported, I would want to see security vulnerabilities patched since it has been deprecated for the last year and a half and to ensure that networking sections or commands do not conflict with Podman, which Red Hat now promotes.

I have been using Docker on CentOS for a few months.

In my experience, Docker on CentOS is not stable anymore because it is not actively being maintained.

Docker on CentOS is scalable; I can build virtual machines, EC2 instances, and scale from zero to however many I want, but it is not advisable due to its deprecated state.

I did not reach out for support specifically about Docker on CentOS, but I utilized Amazon's underlying AWS support, which is good and has quick response times.

I previously used Debian with Docker, which is actively maintained, and I was reading some old documentation recommending CentOS when I started using it.

I did not purchase Docker on CentOS through the AWS Marketplace, but rather through the EC2 section of the AWS console.

I have not seen a return on investment because the deprecation made it so there was none, and if anything, the ROI would have been negative since money and time were spent using something that did not progress.

My experience with pricing, setup cost, and licensing was all good; cost was never an issue, but security and deprecation made it a bad idea to use.

Before choosing Docker on CentOS, I considered using Debian because it seemed quicker and more efficient based on the documentation, but in the end, it turned out less efficient as I had to switch back to Debian.

A quick specific example of how Docker on CentOS helped with my weather application proof of concept is that I was running a proof of concept to build a web app on CentOS on Docker on EC2 instances in AWS, but I realized quite quickly that CentOS actually became end-of-life in 2024, which led me to stop using it due to its deprecated state.

Those features helped me specifically during my project by making it more stable since it used less resources, resulting in a cost-efficient deployment, as the machines that I deployed it on used less of the resources than I thought they needed.

A lesson learned during that period that impacted my future decisions was to understand the development or deprecation timelines of all different types of software pieces in my stack and also to pay more attention to the organization's direction, as Red Hat was making it clear they wanted to switch away from CentOS 7 towards CentOS Stream.

My advice to others looking into using Docker on CentOS is not to use it because it is deprecated; instead, they should opt for something that is actively being maintained, such as Ubuntu or Debian.

I gave this review a rating of 7.

My main use case for Docker on CentOS is economizing. First, we were having to spin up a PBX mainly, and when using Asterisk, instead of creating a full dedicated server for this, I would use Docker to spin up the Asterisk that then easily integrates the Asterisk user cases, especially a customer calling us with our Django and API. Docker containers allow us to match the incoming call with the record so that we know who is calling us, at what time, and using which phone number so that we can create an omnichannel.

Using Docker on CentOS has specifically helped me manage incoming calls and match records through ease of scalability and ease of troubleshooting. In terms of reliability and vertical or horizontal scaling, it is much easier when using containers, and making changes that are specific to a certain element is easier than bringing down the whole infrastructure, so I find that troubleshooting failure is also easier.

Docker on CentOS has positively impacted my organization by saving time and reducing costs in terms of manpower. We do not require as many engineers because Docker gives you infrastructure as code through our cloud platform. Now that you can easily maintain infrastructure as code, you find that you do not need maybe ten plus engineers to manage complex platforms across multiple markets.

The time to recover was almost cut in half when we started simplifying this using microservices. We noticed that we can do a lot more in terms of reporting because databases would be quite heavier in production and impact bare metal VMs. This vertical and horizontal scale that is automated helped us, and even when someone is running a report, there is business continuity. We saw that the incidents that were raised because of lack of system resources during heavy reporting was almost cut by half, moving from thirteen incidents to only one incident a week.

Going from thirteen incidents a week down to one was mainly due to going the microservices way, and then also splitting the underlying workload, splitting more of a reporting workload from live platforms.

To improve Docker on CentOS, apart from having CentOS be end of life, which raises a security risk, I do not see anything else that I can point out about Docker. The only reason for sometimes the build cache surprises of Docker and volume permission headaches, especially on Linux, are considerations. We were finding a way of managing the image bloat on Docker.

I have been using Docker on CentOS for the last seven to eight years.

Docker on CentOS is very much stable.

The scalability of Docker on CentOS, while I note that we are moving away from CentOS if not already, I would give it a ten out of ten in terms of scalability and ease of management of the libraries.

For customer support for Docker on CentOS, I do not reach out. We always use the community of Docker and the Linux community or the CentOS community, which gives reliable information. Professional support is not needed since everything we do is in-house.

Before Docker on CentOS, we were using VMs entirely and bare metals. When we switched to microservices, it is quite much better in terms of scaling and horizontal and vertical scaling.

My experience with pricing, setup cost, and licensing is that since we do it in-house, apart from paying for the cloud hosting, there is nothing like an associated cost with that.

Before choosing Docker on CentOS, we did not evaluate any other options. The solution was just to move to microservices using Docker.

I am migrating workloads from CentOS to another Linux flavor. Regarding the libraries and the security aspect, nothing to add apart from that it is end of life and I am quite behind schedule of migrating these workloads away from CentOS. I would trust the repository updates from CentOS, given that most of these would be tested before they are taken to Red Hat. Apart from the migration from end of life, there is a huge risk that I am seeing, but there is nothing else I can add.

Regarding Docker on CentOS's AI capabilities, I cannot provide expertise as I am not a security expert. I trust the updates from the Docker repository and everything that has been updated, and I would say that I trust the platform as Docker.

My advice to others looking into using Docker on CentOS is that since Docker is still supported and growing and the community is good, it is a great product. For CentOS, either move to Rocky Linux or move to Debian.

I rate Docker on CentOS an eight out of ten.

My main use case for Docker on CentOS is for a microservice container service with a Kubernetes orchestration cluster service. I create cluster services for databases, for example Postgres, and services for telecommunication companies, such as Kafka service, HAProxy service, and other services within the company.

The main use cases for Docker on CentOS are to reduce costs for the company because container services cost significantly less compared to virtualization services.

The best features Docker on CentOS offers include the price compared to other services, such as OpenShift container service. The pricing is competitive and very stable.

CentOS is a fork of Red Hat, and Red Hat is an excellent operating system for a company. Docker on CentOS has positively impacted my organization by reducing operation costs, providing more reliable service, and saving money for the company budget and on other tools.

Docker on CentOS can be improved as a solution service in many companies around Latin America. Regarding Docker on CentOS's AI capabilities, I think its accuracy and reliability of output are less because CentOS, if you want to use the latest version such as number seven, is not compatible with some drivers or libraries for AI.

I have been working in my current field for four years.

Docker on CentOS's governance and security services are better than others.

CentOS at this moment does not have support, only CentOS Stream, while you can use other applications like Ansible for governance and security services.

My advice for others looking into using Docker on CentOS is that it significantly reduces the time to deploy services, making it very fast within the company. I would rate this product an 8 out of 10.

I don't have any specific use case with Dell PowerEdge. I work with it as a server where we install software and run Red Hat Enterprise.

I work with Red Hat Enterprise Linux 7 and 8, but I don't specifically use Red Hat OpenShift or Red Hat JBoss.

Docker on CentOS has improved my organization positively. The benefits are significant as it is easy to operate and maintain, making it more flexible. You can change any service in the system, delete or remove the service port, and create new ones.

It is difficult for me to suggest improvements because the current functionality meets my needs.

To achieve a higher rating of 9 or 10, they might need more automation features.

Docker on CentOS is quite stable. I would rate it 8 or 9 out of 10.

I rate their support as a partner. We purchase the software and product from them, so when I have an issue with Red Hat or Docker on CentOS or Kubernetes, I create a ticket with the partner who works directly with the respective teams.

I have experience with their support through a few cases requiring Red Hat assistance. I go through our software partner who communicates with the Red Hat team, and they communicate with Docker on CentOS or Kubernetes team to resolve issues.

Positive

The initial setup of Docker on CentOS is not too difficult. We can accomplish it very generally.

I don't have experience with Docker on CentOS pricing. Since Docker on CentOS, Kubernetes, and Red Hat are open source, I believe the cost is only applicable for support services.

I don't have experience with Dell PowerStore as I haven't worked with it. I am not familiar with PowerStore or its function.

I haven't worked with Dell Data Protection or DPA. My experience is limited to servers, switches, and EMC Unity storage.

The orchestration and CI/CD process relates to the architecture engineer and solution architecture.

I rate Docker on CentOS an 8 out of 10.

All of our development is done with Docker on CentOS. In some cases, we also do the deployment for clients on staging and in maybe one or two cases even in production with Docker on CentOS, but mostly it is for development.

Docker on CentOS by itself has great features because the containers concept is already a great use case. Previously, each developer had their own PHP, own Symfony, own database, and then we had some issues with versions. When we deploy to clients, we might have again some such issues. The consistency that Docker on CentOS provides helps our workflow because it avoids developers having issues with versions of applications.

Regarding Symfony, we use many bundles, and not only Docker but also by mainly using things such as Git or Composer, we quite reduce this inconsistency with bundles. Putting everything in Docker helps a lot.

Regarding where I see the biggest gains with Docker on CentOS, it definitely eases the onboarding process because we can more quickly put people to just Git pull and Docker up, and they have a working environment. For issues, except inconsistency issues that we had at some point, we definitely gain here. For deployment, most of our customers have Docker on their environments, and it is easier as well. We have the same environment running everywhere.

Regarding how Docker on CentOS can be improved, I have not thought about this much. If I had to think of one thing that could make my experience with Docker on CentOS even better, I do not have any issues myself. When teams have any issues, I can help them with my experience with it. No specific issues come to my mind.

I have been using Docker on CentOS for about seven or eight years.

Docker on CentOS is quite stable and I have not encountered any issues until now, so for me it is stable.

If my projects or team grew, I think Docker on CentOS would handle more containers or more complex setups easily. I have read and gotten feedback that I did not see any issues regarding scalability. When we talk about scalability, it is not infinite, but for the types of projects we do, I think it is quite scalable.

The customer support for Docker on CentOS is something I have never needed; I always manage by myself.

We did not have any alternate solution before using Docker on CentOS. I discovered Docker about seven or eight years back and really appreciated the idea and have stayed with it.

I choose a ten out of ten for Docker on CentOS because for me it is a tool that helps a lot and I did not have any issues with it. Docker on CentOS is deployed in our organization with no cloud deployment here. Each person has Docker installed on their development environment and we just share the Docker files through Git.

I have no additional thoughts about Docker on CentOS before we wrap up. I just hope that Docker continues as it is and always keeps up to date with new technologies so that we can use it for a few more years.

I have not measured the return on investment for Docker on CentOS, but if intuition counts, I would say ten percent time and energy saved. Regarding fewer employees needed, it does not reduce headcount. It only provides savings and allows us to produce better work.

Regarding my experience with pricing, setup cost, and licensing for Docker on CentOS, as far as I know it is free for small teams, so there are no issues with the pricing. The setup is very smooth as I think I master it or at minimum know it very well. There is no specific licensing on it either.

I did not evaluate other options before choosing Docker on CentOS. I just heard about Docker and tried it because I had already received interesting feedback and never tried any alternative.

Docker on CentOS has impacted our organization positively. I have not quantified how much it has helped us in terms of productivity or gains in avoiding issues, but I would estimate perhaps ten percent improvement. This is not a calculated figure but more of an intuitive assessment.

My advice for others looking into using Docker on CentOS is that if they have not tried it, I would encourage them to go try it. If when trying it they find issues, I would say there is quite a good community around it, so do not hesitate to reach out. Additionally, I would say that the most common AI tools such as ChatGPT and Gemini help a lot if needed. I gave this review a rating of ten out of ten.

My main use case for Docker on CentOS is that I deployed some IBM DB2 database containers.

A specific example of how I use Docker on CentOS with those IBM DB2 database containers is that if you install DB2 on on-prem virtual machines, it takes a long time, but with Docker, it is very fast and easy to recover.

I find that Docker on CentOS is flexible, scalable, and easy to install.

The best features Docker on CentOS offers in my experience are that it is very easy to maintain.

This helps in my day-to-day work because I can watch if my containers are running, if they have any errors or any need for maintenance. I can see them.

Docker on CentOS has positively impacted my organization as it saved us so much time about database installations.

I estimate that if you install databases on generic virtual machines, it takes approximately 30 minutes, but on Docker, it takes one or two minutes.

I think file size management on Docker on CentOS should be improved.

A specific management feature I wish was better or easier to use is that it should maintain its stored files by itself. It should check if there are so many unused files, and Docker should clean them by itself.

I have been using Docker on CentOS for about three years.

Docker on CentOS is quite stable.

Docker on CentOS is quite scalable. You can scale it for small businesses or large environments. It depends on you. Docker allows you to do that.

I haven't needed any customer support on Docker on CentOS.

I haven't previously used a different solution because Docker helps me with all the jobs I have to do.

My advice to others looking into using Docker on CentOS is that they should read carefully the documentation, and they should have done everything right on first installation.

I have seen a return on investment as I save money and time because I can run many DB2 applications in the same virtual machine, so I don't need any extra machines.

My experience with pricing, setup cost, and licensing is that Docker is free to install, so the pricing was acceptable.

Before choosing Docker on CentOS, I did evaluate other options, but they are more expensive and so complicated to maintain.

I don't have any additional thoughts about Docker on CentOS before we wrap up.

Regarding Docker on CentOS's AI capabilities, I didn't use any AI capabilities of Docker on CentOS.

The AI capabilities are something I haven't explored yet.

I give this review a rating of 8.

My main use case for Docker on CentOS involves various workloads that are all interconnected on ECS and they were initially running on Docker. All of them are running on Docker as a matter of fact, but they were initially running on CentOS.

A quick specific example of one of those workloads, or how I'm using Docker on CentOS in my environment, is that it is no longer the case as we moved to Alpine on ECS, but historically it has been running on EC2 instances and Docker was running the various workloads containers for our application on the box itself.

The best features Docker on CentOS offers include cleanup and management of the containers.

When I mention cleanup and management, what specifically stands out for me is the ease of removing unused containers or any dangling resources such as the volume that is created with it or even the network adapters or even logs.

Docker on CentOS has positively impacted my organization as it has been serving us very well until we reduced our footprint on the container side moving to Alpine, but meanwhile, it has been serving us well. It has been serving us in terms of stability and reliability. The service is easy to start, stop, and work with.

Docker on CentOS can be improved, but that is a very tough and tricky question. There is not much I could add to whatever is provided as it is a Linux service embedded within CentOS or the operating system. The log cleanup with Docker containers could be a little bit improved. However, that is only my humble opinion, so I would not recommend anything specific.

I have been using Docker on CentOS for four years.

My advice to others looking into using Docker on CentOS is to do it. It is a good product. I would rate Docker on CentOS a nine out of ten.

I gave it a nine out of ten because no one is perfect.

Regarding Docker on CentOS's AI capabilities, it looks pretty much equal to the other operating systems that are running Docker. I do not have much experience on that side which would differ from the other operating systems, but I will presume it is in fact well guarded. I have not played with its accuracy and reliability of output.

My overall review rating for Docker on CentOS is nine out of ten.