Posts Tagged ‘Containers’

Welcome back to Docker Bootcamp.  In the previous post, we learned about performance and how to tune our containers.  In this post we’ll look at another way to improve the performance of your containers by using process isolation mode.  By default, windows containers run in hyper-v mode.  When we run our containers in hyper-v mode […]

Application modernization is a growing area of focus for enterprises, especially in the wake of the COVID-19 pandemic. Why? Because business leaders feel increasing pressure to drive innovation. Digital trends, remote work, and escalating customer expectations are among the reasons. No industry is immune to these dynamics. Businesses must evolve to succeed, which is why […]

Welcome back to docker bootcamp.  In a previous post, we learned how to set resource limits for our containers.  In this post, we will dig deep into performance.  We’ll start with a brief history lesson about CPUs and hyperthreading then move on to an example that will help explain how different CPUs can impact performance.  […]

Welcome back to docker bootcamp.  In the previous post, we learned how to switch from Linux containers to Windows containers.  In this post we will create a new .net project and deploy to a container.  We will also see how to attach the debugger to the code running inside the container.  The IIS image we […]

Welcome back to Docker Bootcamp. Up to this point, all the examples we’ve gone through have used Linux containers. In this post, we’ll switch to Windows containers.  All the Docker commands you’ve learned will still work. But now we’ll have access to Windows, PowerShell, and Internet Information Services (IIS) to run .net-based applications. Examples Switch […]

Welcome back to Docker Bootcamp. We’ve learned a lot about how to use Docker in this series. In this post, we’ll look at when to use Docker. Docker is a great tool, but as with any technology, you should make sure it is the right tool for the job you are trying to accomplish. Why […]

Welcome back to Docker Bootcamp. In this post, we’ll look at Docker Compose to configure and run multiple dependent containers. Looking back at my first post about linking containers, we used the Docker run command along with an environment variables text file to start two containers. It was important to start the database container before […]

Welcome back to Docker Bootcamp. In this post, we’ll look at setting resource limits on containers. By default, containers have full access to the host CPU and RAM just like a regular application installed and running on the host machine. Docker gives us control over how much CPU and RAM each container can consume.  Multiple […]

Welcome back to Docker Bootcamp.  In this post, we’ll revisit the topic of linking multiple containers. We’ll discover how to link containers using Docker’s network features that we’ve discussed in previous posts. In part one, we used the link flag to connect two containers. The link flag is considered a legacy feature and could eventually […]

Welcome back to Docker Bootcamp.  In the previous post on networking, we modified our container’s network configurations using flags on the create or run command. Here we will create a user-defined network and set a specific IP address on our container. Terminology Classless Inter-Domain Routing (CIDR) – A notation representing a network identifier and the […]

Welcome back to Docker Bootcamp.  In the previous post on networking, we mapped ports in the container back to the host and connected to services running inside the container.  Here we will set custom DNS and hostnames. Using these options modifies the network configurations inside the container in various ways. Terminology Domain Name Service (DNS) […]

Welcome back to Docker Bootcamp. In this post, we’ll take another look at networking. In the first post on networking, we looked at the different types of network and container isolation types available through docker. Here we will map ports in the container back to the host and connect to services running inside the container. […]