Docker on Ubuntu 22.04 LTS

My main use case for Docker on Ubuntu  is containerizing our applications, hosting them, and performing deployment.

A specific example of an application I have containerized and deployed using Docker on Ubuntu  is our multi-tier applications, including front-end, back-end, and database applications that we have hosted on Docker .

Docker on Ubuntu has positively impacted my organization because we are deploying applications as quickly as possible and can deploy to multiple clouds. Using Ubuntu , we do not need to use multiple operating systems.

My deployment process has improved and become faster and more efficient.

In my opinion, the best features Docker on Ubuntu offers are stability with reliable support and a huge ecosystem that works with Docker , Kubernetes , Docker Compose, and Jenkins . It is also cloud-friendly with AWS , Azure , and GCP, and it has community support and better compatibility compared to CentOS .

Out of those features, I rely mostly on the huge ecosystem and its cloud-friendly nature with AWS  and GCP, which allows us to host our applications on multiple clouds.

Docker on Ubuntu can be improved due to hidden security concerns, as Docker runs as root by default and needs hardening through rootless user mode and privilege limiting. It has memory and CPU pressure when using too many containers, and it is complex with volumes, networking, and multi-stage builds.

It needs to harden rootless mode because it runs as root by default, so this improvement is necessary.

I have been using Docker on Ubuntu for two years.

Docker on Ubuntu is stable.

The scalability of Docker on Ubuntu is good because if you want to add more resources, you can spin up new resources by creating a container.

I hope the customer support will be good and rate it an eight.

We have been using virtual machines, but they were expensive for us, which is why we switched to Docker.

My experience with pricing, setup cost, and licensing is that Docker does not have licensing, and for pricing, you only need to pay for the virtual machines or servers you host.

We do not have any business relationship with this vendor other than being a customer.

I have seen a return on investment because money is saved after switching from virtual machines, as we previously needed to pay more for them.

My experience with pricing, setup cost, and licensing is that Docker does not have licensing, and for pricing, you only need to pay for the virtual machines or servers you host.

Before choosing Docker on Ubuntu, we had a clear mindset that we wanted to use Docker, so we did not evaluate other options.

My advice to others looking into using Docker on Ubuntu is that if they want to Dockerize an application, want a lightweight solution, create multi-stage resources, use fewer resources, and do not want to pay for virtual machines, they can use Docker and containerize their applications.

I gave this review a rating of eight out of ten.

My main use case for Docker on Ubuntu  is that I'm working at a product-based company that has its own app, so we have to check and deploy this app on a containerized base system using Ubuntu  as a base machine, installing Docker , and testing the app.

A quick example of how I use Docker on Ubuntu  with my company's app involves a big server located in the US, where it has 48 cores, around 512 GB of RAM, and 1 TB of storage, and we have a requirement to install Docker  as a container system on a Ubuntu  base to deploy our application in order to test whether our new build is working as expected or not, using Docker on Ubuntu for testing purposes.

As I mentioned, it's a product-based company, and we're using a monitoring tool called Cabmon to monitor all the servers in our environment, so for this, we have a NOC server, which we initially used as a full server, but a few weeks or months back, we migrated these onto containers for testing purposes.

The best features that Docker on Ubuntu offers in my experience are ease of usability and performance.

Ease  of usability and performance with Docker on Ubuntu have helped me because Ubuntu is a Debian-based OS that can operate in both server and desktop modes, so when using Docker on Ubuntu on a server base, I need to install a few packages to convert the machine to GUI mode, making Docker on Ubuntu easy to use.

While I think security is not a standout feature, ease of usability and performance remain the main highlights for me since it's only environment-specific and involves local testing along with monitoring only internal servers.

Docker on Ubuntu has positively impacted my organization through resource savings, as for our NOC server, we are using a dedicated 30-core server with 256 GB of RAM, but with the help of Docker on Ubuntu, we can run multiple containers on the same server.

In terms of resource savings, we reduced the number of servers from around 100 to 70 after using Docker on Ubuntu within our private cloud, where we have numerous servers located in multiple locations in the US.

One area where Docker on Ubuntu can be improved is networking, as sometimes the containers don't have network access or experience network-related issues, which definitely needs to be addressed.

Other than networking, I'm not facing any other issues as it's mostly a common concern.

Networking remains the main improvement needed for Docker on Ubuntu.

I've been using Docker on Ubuntu for around five plus years.

Docker on Ubuntu is stable in my experience.

Docker on Ubuntu's scalability is good.

I have not felt the need to reach out for customer support for Docker on Ubuntu, as it has not been required.

I previously used Kubernetes , which by default uses CNI because it's a lightweight container service without a specific daemon, as I mentioned earlier.

I've observed a return on investment through money and time savings, as it's easier to spin up a new container instead of setting up a new server.

I did not evaluate other options before choosing Docker on Ubuntu.

I would rate Docker on Ubuntu an eight overall.

I chose 8 out of 10 because Docker includes a service and a daemon that require specific configurations, similar to other services such as httpd; it's heavy for any server, occasionally needing daemon reloads, hence, I'm cutting two points; otherwise, Docker on Ubuntu is excellent for testing purposes.

My advice for others looking to use Docker on Ubuntu is to check the daemon first and always make appropriate network-related settings to avoid issues. I have given Docker on Ubuntu a rating of 8 out of 10.

My main use case for Docker on Ubuntu  is containerizing applications to simplify deployment and ensure consistency across environments since I often need to switch between them.

A quick specific example of an application I have containerized using Docker on Ubuntu  is testing application configurations across multi-service deployments using Docker  Compose.

Using Docker  Compose for those multi-service deployments helps with my workflow since it makes the deployment much easier as I can deploy all of my services in one single file.

I also use Docker on Ubuntu as part of automated workflows and CI/CD pipelines.

The best features Docker on Ubuntu offers are its strong points of portability, consistency across deployments, and ease of deployment.

Out of portability, consistency, and ease of deployment, I rely on consistency the most in my daily work since I often need to deploy the same image across different instances, so I need all of them to be exactly the same.

Docker on Ubuntu has positively impacted my organization by helping a lot in shipping our applications since it is our main way of shipping them.

It has helped by reducing deployment times significantly since we basically configure the Docker on Ubuntu images to always have the same configuration, so we do not have to be constantly configuring those same settings since they are already configured by default in our images.

Docker on Ubuntu can be improved because it can get quite tricky, and the learning curve is quite steep, especially for beginners who are new to the concept of containerization.

I would also add that using Docker on Ubuntu by itself in complex deployments can be quite tricky without the use of orchestration tools, so the use of orchestration tools along with Docker on Ubuntu is kind of a must, and debugging can also be quite difficult.

I have been using Docker on Ubuntu for almost eight years now.

Docker on Ubuntu is stable, very much so.

Docker on Ubuntu is scalable by itself, but it is even more scalable when used with orchestration tools like Kubernetes .

I have never had to rely on customer support since I use the open-source version, but the community support is very strong.

Before using Docker on Ubuntu, we relied on manual deployments, which is not a solution per se, and we switched to Docker on Ubuntu because of much faster deployments, the consistency across different deployments, and easier management.

My experience with pricing, setup cost, and licensing is that since Docker on Ubuntu itself is open source and free to use, I haven't had any experience with its pricing; the only pricing that comes with Docker on Ubuntu is the infrastructure, and if you opt for enterprise features.

I do not have any numbers, but shipping with Docker on Ubuntu has saved us countless hours, and therefore we can operate many more deployments with fewer engineers, so you save a lot in time and personnel.

Before choosing Docker on Ubuntu, I did not evaluate other options.

My advice to others looking into using Docker on Ubuntu is that Docker on Ubuntu is very powerful and vast, so getting to know the best practices, especially around security and networking, is a must to get the most value out of it. I would rate this product a 9 out of 10.