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Docker pros and cons

Vendor: Docker
4.3 out of 5
Badge Ranked 1

Pros & Cons summary

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Prominent pros & cons

PROS

Docker offers excellent scalability and stability, proving crucial for deployment and application management across various environments.
The ability to containerize and create lightweight images is a game-changer, allowing applications to be deployed quickly and efficiently.
Docker's integration with tools like Kubernetes enhances orchestration, simplifying workload management.
Docker facilitates substantial cost savings through efficient resource management and reduced deployment times.
Portability and ease of use make Docker a preferred choice for developers seeking fast and reliable application deployment.

CONS

Docker requires frequent manual intervention for firewall settings and node integration, which complicates management and adds complexity to deployment processes.
Documentation for Docker is often considered inadequate, making installation and use challenging, particularly for new users and educators.
Docker's stability is unreliable, with frequent incidents impacting cloud operations and causing performance issues during synchronization and containerization tasks.
The lack of security vulnerability reports and advanced security features leaves Docker vulnerable, which poses significant risks for users requiring secure cloud-based operations.
Improvement in debugging tools and methods within Docker containers would greatly benefit developers, who face challenges in troubleshooting applications inside containers.
 

Docker Pros review quotes

AA
Unix/Linux Systems Administrator at a financial services firm with 10,001+ employees
Aug 19, 2022
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.
Sushant Sangam - PeerSpot reviewer
Specialist - Cloud Services and Software at NRG Energy, Inc.
Sep 28, 2022
The scalability of Docker is good.
UU
Technical Lead at a tech services company with 1,001-5,000 employees
Sep 29, 2022
It is neat and very flexible.
Learn what your peers think about Docker. Get advice and tips from experienced pros sharing their opinions. Updated: January 2026.
880,511 professionals have used our research since 2012.
Rizwan Ghzzaal - PeerSpot reviewer
DevOps Team Lead at Accenture Baltics
Sep 29, 2022
The lift and shift creates a lightweight image.
Gogineni Venkatachowdary - PeerSpot reviewer
Cloud Operations Center Analyst at a pharma/biotech company with 10,001+ employees
Oct 4, 2022
We find the auto scaling and auto healing functionality of this solution very good.
Reza Sadeghi - PeerSpot reviewer
Software Development Team Lead at asa com
Oct 7, 2022
The most valuable feature is Docker has a fast learning curve.
Kumara Swamy - PeerSpot reviewer
Software Development Engineer in Test at a tech services company with 1-10 employees
Oct 10, 2022
The most valuable feature of Docker is the dedicated QA environment for connecting the team members. Additionally, there are many core features available and it is highly secure when we are imaging a client's server.
Mostafa Khadem - PeerSpot reviewer
Senior Linux System Administrator at Dana Energy
Oct 14, 2022
The most valuable feature of Docker is its integration with other solutions, such as KVM and AlmaLinux.
reviewer1993773 - PeerSpot reviewer
Software Engineer 3 at a financial services firm with 10,001+ employees
Oct 18, 2022
The most valuable feature is that it is cost-saving.
Rakesh Thakur - PeerSpot reviewer
Technical Architect at a insurance company with 1,001-5,000 employees
Oct 18, 2022
Docker is easy to understand and follow. It provides good scalability to the application.
 

Docker Cons review quotes

AA
Unix/Linux Systems Administrator at a financial services firm with 10,001+ employees
Aug 19, 2022
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.
Sushant Sangam - PeerSpot reviewer
Specialist - Cloud Services and Software at NRG Energy, Inc.
Sep 28, 2022
Docker could improve by having security vulnerability reports.
UU
Technical Lead at a tech services company with 1,001-5,000 employees
Sep 29, 2022
Unfortunately, base images are not currently available.
Learn what your peers think about Docker. Get advice and tips from experienced pros sharing their opinions. Updated: January 2026.
880,511 professionals have used our research since 2012.
Rizwan Ghzzaal - PeerSpot reviewer
DevOps Team Lead at Accenture Baltics
Sep 29, 2022
The documentation could be improved.
Gogineni Venkatachowdary - PeerSpot reviewer
Cloud Operations Center Analyst at a pharma/biotech company with 10,001+ employees
Oct 4, 2022
We would like to see improvement in adding the node into the Docker Swarm cluster, as at present it is a little tricky and requires a lot of manual steps.
Reza Sadeghi - PeerSpot reviewer
Software Development Team Lead at asa com
Oct 7, 2022
One item that could be improved is the overall stability of Docker.
Kumara Swamy - PeerSpot reviewer
Software Development Engineer in Test at a tech services company with 1-10 employees
Oct 10, 2022
Docker could improve by having more advanced features.
Mostafa Khadem - PeerSpot reviewer
Senior Linux System Administrator at Dana Energy
Oct 14, 2022
Docker could improve by providing the ability to use the GPU for parallel processing. If there was the capability of using the GPU it would improve the machine learning that I want to use.
reviewer1993773 - PeerSpot reviewer
Software Engineer 3 at a financial services firm with 10,001+ employees
Oct 18, 2022
I think Docker can improve as it relates to overall stability.
Rakesh Thakur - PeerSpot reviewer
Technical Architect at a insurance company with 1,001-5,000 employees
Oct 18, 2022
I would like to see a single package image orchestration bundled together.