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Reza Sadeghi - PeerSpot reviewer
Software Development Team Lead at asa com
Real User
Oct 22, 2022
Easy to learn, secure environment, with excellent pricing
Pros and Cons
  • "The most valuable feature is Docker has a fast learning curve."
  • "One item that could be improved is the overall stability of Docker."

What is our primary use case?

Our primary use is to deploy the applications in a secure environment. We prefer that our developer and the Docker files can make the images. After we have captured the images we use our CI/CD tool and deploy our applications. This makes our publisher fast and our containers are isolated from each other. We increase our security by using Docker. 

What is most valuable?

The most valuable feature is Docker has a fast learning curve. There are a lot of default options that when you use Docker you do not need to customize or configure it in a way that it slows you down.  The user interface is very nice as well. Docker has good security.

What needs improvement?

One item that could be improved is the overall stability of Docker.

For how long have I used the solution?

I have been using Docker for one year.

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March 2026
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What do I think about the stability of the solution?

For the most part, Windows is stable, but sometimes the application crashes and we have to have an error fixed in order for the stability to remain. When it comes to Linux it is not so compatible.

Which solution did I use previously and why did I switch?

The reason why the company decided to use Docker is that it is easy to learn.

How was the initial setup?

The setup is easy and straightforward.  The Docker site is comprehensive, and you can find all of the documentation, API, details, and comments you need to deploy.

What's my experience with pricing, setup cost, and licensing?

The current cost for us is nothing as an open source.

What other advice do I have?

I would recommend they use the online videos and tutorials and after a week they are going to be ready to start. I would recommend it to anyone to use. I would rate Docker an eight out of ten.

Which deployment model are you using for this solution?

Private Cloud
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
PeerSpot user
Rizwan Ghzzaal - PeerSpot reviewer
DevOps Team Lead at Accenture Baltics
Real User
Top 20
Oct 17, 2022
Great lift and shift feature creates lightweight images; unfortunately, documentation is lacking
Pros and Cons
  • "The lift and shift creates a lightweight image."
  • "The documentation could be improved."

What is our primary use case?

I use Docker to create dev stacks, usually for developers to plug and play their applications, and in cases where they don't need to be bothered with complex architectures and decoupling services. We create a simple Docker compose file and provision it. We are customers of Docker and I'm a DevOps engineer.

What is most valuable?

The lift and shift is valuable because you create a lightweight image that can be accessed by anyone who has installed Docker.

What needs improvement?

I'd like to see improvement in some of the documentation because there are currently errors and it requires a thorough check and deep dive to make sure it's correct. If they were to incorporate what the community offers into the documentation, it would be beneficial.

Many people use multiple containers for their workload and it would be great to have pre-deployed solutions for typical deployments like WordPress and multiple CMS which would encourage more developers to use Docker. I would love to see the solution with pre-baked, ready-to-go capabilities for multi-container solutions.

For how long have I used the solution?

I've been using this solution for five years. 

How are customer service and support?

I haven't found such complex issues that I need to contact customer support. I found most of the answers through the community or using a work around. 

How was the initial setup?

The initial setup is very easy. You just need some basic understanding of the system, and how containerization works. Images are already prepared so if the user doesn't have the images on his local system, Docker pulls it from the repository and it's good to go. It's much faster if the images are downloaded. As a DevOps engineer, I generally carry out the deployment myself. 

What other advice do I have?

I recommend learning about containerization prior to using this solution starting with basic deployments. Take the opportunity to test it out and check the components. Docker has relieved a lot of the pressure, including the fact that I no longer have to provide everything from scratch. I know I just have to install the Docker community edition, make Docker images and get going. That said, Docker has some limitations and Kubernetes has discontinued using it. It's compatibility is reduced as a result and many organizations are moving towards Kubernetes and other orchestration services.

I rate this solution seven out of 10. 

Which deployment model are you using for this solution?

Public Cloud

If public cloud, private cloud, or hybrid cloud, which cloud provider do you use?

Amazon Web Services (AWS)
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
PeerSpot user
Buyer's Guide
Docker
March 2026
Learn what your peers think about Docker. Get advice and tips from experienced pros sharing their opinions. Updated: March 2026.
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Sushant Sangam - PeerSpot reviewer
Specialist - Cloud Services and Software at NRG Energy, Inc.
Real User
Oct 3, 2022
Reliable, scalable, and useful application vitalization
Pros and Cons
  • "The scalability of Docker is good."
  • "Docker could improve by having security vulnerability reports."

What is our primary use case?

We are using Docker in our Java pipeline which is based on DevOps.

We use Docker because we do not have to set up an environment to let people try applications.

What needs improvement?

Docker could improve by having security vulnerability reports.

For how long have I used the solution?

I have been using Docker for approximately two years.

What do I think about the stability of the solution?

Docker is a stable solution, but there are some security vulnerabilities and that's why we are using security tools to point out if any vulnerabilities arise.

What do I think about the scalability of the solution?

The scalability of Docker is good.

We have most of our application running using Docker in our organization and there are over 1,000 people using the applications.

How are customer service and support?

I have not contacted the support from Docker.

Which solution did I use previously and why did I switch?

I have previously used Prisma but I found Docker has more features.

How was the initial setup?

The initial setup of Docker can be easy. However, it depends on the network you have Docker on.

What about the implementation team?

We have Docker configured everywhere and it took approximately one hour.

What's my experience with pricing, setup cost, and licensing?

There is a license needed to use Docker.

What other advice do I have?

My advice to others is they should use this solution. Previously we had to set everything up for small deployments in the environment, but with Docker, we can directly run the application in a container and pull any images. We don't need to set it up. We can use an image and we can directly set it up.

I rate Docker an eight out of ten.

Disclosure: My company does not have a business relationship with this vendor other than being a customer.
PeerSpot user
Unix/Linux Systems Administrator at a financial services firm with 10,001+ employees
Real User
Sep 8, 2022
Detailed documentation, simple to use, but vertical scaling could improve
Pros and Cons
  • "The most valuable features of Docker are its security, detailed documentation, and ease of use, and the Docker Swarm is not as complex as Kubernetes."
  • "If you install Docker on a host, it creates its own firewalls. It can become an issue. Usually, when you want to install Docker, you need to restart the firewall or restart the active tables on the machine, but this is not the case with Kubernetes. It uses the default set up by the next administrator, but with Docker, you have to restart the firewall and restart Docker before the firewall on the system will be okay. If you do not the rules will not be created."

What is our primary use case?

Docker is an open-source container runtime for running container images. We are using Docker Swarm which is similar to Kubernetes but from Docker.

What is most valuable?

The most valuable features of Docker are its security, detailed documentation, and ease of use, and the Docker Swarm is not as complex as Kubernetes.

There is a feature called overlay network for orchestrating containers in Docker Swarm which makes everything easy. You don't need a load balancer, which makes everything easy for accessing in one container. Additionally, it has internal DNS, which is not in Kubernetes.

What needs improvement?

If you install Docker on a host, it creates its own firewalls. It can become an issue. Usually, when you want to install Docker, you need to restart the firewall or restart the active tables on the machine, but this is not the case with Kubernetes. It uses the default set up by the next administrator, but with Docker, you have to restart the firewall and restart Docker before the firewall on the system will be okay. If you do not the rules will not be created.

For how long have I used the solution?

I have been using Docker for approximately six years.

What do I think about the stability of the solution?

The performance of Docker is good. We usually follow best practices before deploying Docker, we have not had any issues since deployment.

What do I think about the scalability of the solution?

Docker is scalable. However, If you want to vertically scale, you have to do it manually. It doesn't have autoscaling.

We have seven people using Docker in my organization.

How are customer service and support?

The support from Docker is very good. The documentation is rich, any issue you face, somebody already faced and the information is available.

How was the initial setup?

The main reason we are using the Docker Swarm instead of using Kubernetes is you can set up Docker Swarm within five minutes. Docker is easy to set up. Once you install it, you can run it. In this case, the container runtime becomes Docker. The reason why we are using it is the vendor recommended Docker for bank sector purposes. 

Setting up the master nodes in Docker is very easy.

What's my experience with pricing, setup cost, and licensing?

Docker is a free open-source solution. However, there is the Docker Enterprise which is a paid solution.

What other advice do I have?

The founder of Docker decided to move to Docker Enterprise to make revenue. There are many people moving away from Docker.

My advice to others is if you are using legacy applications they do not run well with containers. The person wanting to use Docker has to ask themself questions about themselves to determine if this solution is best. For example, the application that they want to run has to be scalable. People think Docker or Kubernetes is going to solve their problems, but no. If you have problems, it's going to amplify them, but if you have easy, smooth applications, it's going to make your life easier. The application itself has to be scalable. 

The application has to be container ready, such as login inputs, does it follow the 12-Factor principles of deployment, and has security. Even if you don't have security, Docker can help with security if you don't have application security.

You need to consider how you are going to patch the images or the applications and if it will work with languages on WiFi, such as Java, Python, or Ruby version.  Those are requirements you need to meet before deploying Docker. You have to find answers to many questions.

I rate Docker a seven out of ten.

I gave my rating a seven out of ten because autoscaling is necessary for cloud-native applications and it is not available. However, it's easy to use, scalable, and straightforward. It was the defacto container runtime for a long time until they went to an enterprise. Docker is very good in CI/CD. Anybody building images is using Docker to build the images and it works well with CI/CD.

Which deployment model are you using for this solution?

On-premises
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
PeerSpot user
Software Engineer at a tech services company with 51-200 employees
Real User
Top 10
Feb 12, 2025
Containerization simplifies application deployment and integration with CI/CD tools
Pros and Cons
  • "The most valuable feature is the simple containerization."
  • "The stability is excellent."
  • "In terms of communication between services, perhaps the configuration within networks between containers could be improved."
  • "In terms of communication between services, perhaps the configuration within networks between containers could be improved."

What is our primary use case?

I use Docker primarily for backend services to containerize applications or for API communications.

What is most valuable?

The most valuable feature is the simple containerization. I can specify what I need to install in a shell to ensure the application runs. It's a straightforward and easy-to-use feature. I also use it with CI/CD tools, finding it a good solution for integration.

What needs improvement?

In terms of communication between services, perhaps the configuration within networks between containers could be improved.

For how long have I used the solution?

I have been working with Docker for about six years.

What do I think about the stability of the solution?

The stability is excellent. I would rate it ten out of ten.

What do I think about the scalability of the solution?

By using Kubernetes, scalability is simple and can be done without issues.

Which solution did I use previously and why did I switch?

Some developers might use virtualization solutions like VMware, however, Docker is much better because it is simple.

How was the initial setup?

Overall, the setup is simple.

What's my experience with pricing, setup cost, and licensing?

I consider Docker's pricing to be affordable.

Which other solutions did I evaluate?

Some developers might consider virtualization solutions like VMware.

What other advice do I have?

I would recommend Docker for a wide range of users, from 50 to five million users, as it is simple to configure. 

I rate the overall solution ten out of ten.

Which deployment model are you using for this solution?

On-premises
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
PeerSpot user
reviewer2404605 - PeerSpot reviewer
Senior Architect at a engineering company with 10,001+ employees
Real User
Top 5
Jun 5, 2024
Suitable for enterprises and helps with device management
Pros and Cons
  • "In our line of work, we've been involved in various sectors, such as industrial products, transportation, client engineering, telecom, and medical. For instance, we're currently developing an IT platform. One key use case we're tackling is device management."
  • "Docker needs to improve its pricing."

What is our primary use case?

In our line of work, we've been involved in various sectors, such as industrial products, transportation, client engineering, telecom, and medical. For instance, we're currently developing an IT platform. One key use case we're tackling is device management.

We're looking at managing devices within our setup. These devices send data or signals, which then get transferred to the cloud. It's all about handling the lifecycle of these devices, deploying them, and managing non-provisioned ones, both on our end and on the client's side.

What needs improvement?

Docker needs to improve its pricing. 

What do I think about the stability of the solution?

I rate Docker's stability a nine out of ten. 

What do I think about the scalability of the solution?

One of the primary reasons we use the tool is its scalability. It scales easily, and we haven't had any issues with it.

How are customer service and support?

Docker's support is user-friendly, fast, and knowledgeable. 

How was the initial setup?

The tool's deployment difficulty is medium.

What other advice do I have?

It tends to make sense as an investment for larger enterprises, but the cost might seem expensive for smaller businesses.

Disclosure: My company does not have a business relationship with this vendor other than being a customer.
PeerSpot user
Data Engineer at Mofid
Real User
May 9, 2023
Consumes fewer resources and is easy to use
Pros and Cons
  • "The solution's customer service is good."
  • "They should provide proper documentation to understand the solution's cgroup process."

What is our primary use case?

We use Docker to build, run, and ship any application.

What is most valuable?

The solution's most valuable feature is container registry interface.

What needs improvement?

They should provide proper documentation to understand the solution's cgroup and other processes.

What do I think about the stability of the solution?

The solution is stable. Although, it consumes a lot of battery and RAM to create virtualization on macOS.

What do I think about the scalability of the solution?

We have ten solution users in our organization. Its scalability for multiple VMs needs improvement.

How are customer service and support?

The solution's customer service is good.

How would you rate customer service and support?

Positive

Which solution did I use previously and why did I switch?

We were using VMware as well. In comparison, Docker is easy to use, consumes fewer resources, and takes less time to complete the process.

How was the initial setup?

The solution's initial setup process is easy. It takes less than an hour and requires one person to execute. Also, it is easy to maintain because we can see logs.

What's my experience with pricing, setup cost, and licensing?

I use the solution's open-source version.

What other advice do I have?

I advise others to use JPT to create docker images. They should know the basic process for it. I rate the solution a ten.

Which deployment model are you using for this solution?

On-premises
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
PeerSpot user
reviewer2146836 - PeerSpot reviewer
Owner at a venture capital & private equity firm with 1-10 employees
Real User
Apr 24, 2023
Provides containers independent of the operating system and is easy to use
Pros and Cons
  • "The solution's most valuable feature is having containers independent of the operating system or environment."
  • "The solution’s documentation could improve a bit."

What is our primary use case?

I have an energy management platform running on AWS, but I saw some limitations in that setup. So I'm designing one to be independent and containerized rather than using AWS services. That is why I'm now checking if I could go to a Red Hat OpenShift or EKS.

What is most valuable?

The solution's most valuable feature is having containers independent of the operating system or environment. Also, you can just be modular and scale with the solution.

What needs improvement?

The solution’s documentation could improve a bit.

A new feature was added to Kubernetes to deploy and manage containers. Currently, it is a bit of a tedious process to combine containers using Docker. Hence, a new way to deploy containers would be a good feature to be included in Docker's next release.

For how long have I used the solution?

I have been using Docker for one year.

What do I think about the stability of the solution?

It is a stable solution.

What do I think about the scalability of the solution?

The solution is scalable.

How are customer service and support?

I've never contacted Docker's technical support, but I contacted the developer of a few images that were incompatible with Mac.

How was the initial setup?

The initial setup is fairly easy and fast.

What's my experience with pricing, setup cost, and licensing?

The pricing of the solution is fairly cheap.

What other advice do I have?

I am using the latest version of Docker. Currently, we have four people using Docker in our company. My company chose Docker because it is popular and used on all platforms.

People should definitely use Docker. Since there's a learning curve, users should first start small and then expand. It also depends on your use case. You need to understand what Docker is because it is not always the right solution for everything. Docker is very lightweight, and you can use it to build containers and create your application. It will be modular and cross-platform.

Overall, I rate Docker an eight out of ten because it is a cross-platform solution that is straightforward and easy to use.

Which deployment model are you using for this solution?

Private Cloud
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
PeerSpot user
Buyer's Guide
Download our free Docker Report and get advice and tips from experienced pros sharing their opinions.
Updated: March 2026
Buyer's Guide
Download our free Docker Report and get advice and tips from experienced pros sharing their opinions.