Category Archives for "Docker Blog"

Introducing the New Docker Hub

Today, we’re excited to announce that Docker Store and Docker Cloud are now part of Docker Hub, providing a single experience for finding, storing and sharing container images. This means that:

  • Docker Certified and Verified Publisher Images are now available for discovery and download on Docker Hub
  • Docker Hub has a new user experience


Millions of individual users and more than a hundred thousand organizations use Docker Hub, Store and Cloud for their container content needs. We’ve designed this Docker Hub update to bring together the features that users of each product know and love the most, while addressing known Docker Hub requests around ease of use, repository and team management.

Here’s what’s new:


  • View recently pushed tags and automated builds on your repository page
  • Pagination added to repository tags
  • Improved repository filtering when logged in on the Docker Hub home page

Organizations and Teams

  • As an organization Owner, see team permissions across all of your repositories at a glance.
  • Add existing Docker Hub users to a team via their email (if you don’t remember their of Docker ID)

New Automated Builds

Docker App and CNAB

Docker App is a new tool we spoke briefly about back at DockerCon US 2018. We’ve been working on `docker-app` to make container applications simpler to share and easier to manage across different teams and between different environments, and we open sourced it so you can already download Docker App from GitHub at

In talking to others about problems they’ve experienced sharing and collaborating on the broad area we call “applications” we came to a realisation: it’s a more general problem that others have been working on too. That’s why we’re happy to collaborate with Microsoft on the new Cloud Native Application Bundle (CNAB) specification.

Multi-Service Distributed Applications

Today’s cloud native applications typically use different technologies, each with their own toolchain. Maybe you’re using ARM templates and Helm charts, or CloudFormation and Compose, or Terraform and Ansible. There is no single solution in the market for defining and packaging these multi-service, multi-format distributed applications.

CNAB is an open source, cloud-agnostic specification for packaging and running distributed applications that aims to solve some of these problems. CNAB unifies the management of multi-service, distributed applications across different toolchains into a single all-in-one packaging format.

The draft specification is available at and Continue reading

Announcing Cloud Native Application Bundle (CNAB)

As more organizations pursue cloud-native applications and infrastructures for creating modern software environments, it has become clear that there is no single solution in the market for defining and packaging these multi-service, multi-format distributed applications. Real-world applications can now span on-premises infrastructure and cloud-based services, requiring multiple tools like Terraform for the infrastructure, Helm charts and Docker Compose files for the applications, and CloudFormation or ARM templates for the cloud-services. Each of these need to be managed separately.



To address this problem, Microsoft in collaboration with Docker are announcing Cloud Native Application Bundle (CNAB) – an open source, cloud-agnostic specification for packaging and running distributed applications. CNAB unifies the management of multi-service, distributed applications across different toolchains into a single all-in-one packaging format.The CNAB specification lets you define resources that can be deployed to any combination of runtime environments and tooling including Docker Engine, Kubernetes, Helm, automation tools and cloud services.

Docker is the first to implement CNAB for containerized applications and will be expanding it across the Docker platform to support new application development, deployment and lifecycle management. Initially CNAB support will be released as part of our docker-app experimental tool for building, packaging and managing Continue reading

Simplifying Kubernetes with Docker Compose and Friends

Today we’re happy to announce we’re open sourcing our support for using Docker Compose on Kubernetes. We’ve had this capability in Docker Enterprise for a little while but as of today you will be able to use this on any Kubernetes cluster you choose.

Compose on Kubernetes

Why do I need Compose if I already have Kubernetes?

The Kubernetes API is really quite large. There are more than 50 first-class objects in the latest release, from Pods and Deployments to ValidatingWebhookConfiguration and ResourceQuota. This can lead to a verbosity in configuration, which then needs to be managed by you, the developer. Let’s look at a concrete example of that.

The Sock Shop is the canonical example of a microservices application. It consists of multiple services using different technologies and backends, all packaged up as Docker images. It also provides example configurations using different tools, including both Compose and raw Kubernetes configuration. Let’s have a look at the relative sizes of those configurations:

$ git clone
$ cd deployment/kubernetes/manifests
$ (Get-ChildItem -Recurse -File | Get-Content | Measure-Object -line).Lines
$ cd ../../docker-compose
$ (Get-Content docker-compose.yml | Measure-Object -line).Lines

Describing the exact same multi-service application using just Continue reading

Introducing Docker Desktop Enterprise

Nearly 1.4 million developers use Docker Desktop every single day because it is the simplest and easiest way for container-based development. Docker Desktop provides the Docker Engine with Swarm and Kubernetes orchestrators right on the desktop, all from a single install. While this is great for an individual user, in enterprise environments administrators often want to automate the Docker Desktop installation and ensure everyone on the development team has the same configuration following enterprise requirements and creating applications based on architectural standards.



Docker Desktop Enterprise is a new desktop offering that is the easiest, fastest and most secure way to create and deliver production-ready containerized applications. Developers can work with frameworks and languages of their choice, while IT can securely configure, deploy and manage development environments that align to corporate standards and practices. This enables organizations to rapidly deliver containerized applications from development to production.

Enterprise Manageability That Helps Accelerate Time-to-Production

Docker Desktop Enterprise provides a secure way to configure, deploy and manage developer environments while enforcing safe development standards that align to corporate policies and practices. IT teams and application architects can present developers with application templates designed specifically for their team, to bootstrap and standardize Continue reading

Announcing the Docker Customer Innovation Awards

We are excited to announce the first annual Docker Customer Innovation Award winners at DockerCon Barcelona today! We launched the awards this year to recognize customers who stand out in their adoption of Docker Enterprise platform to drive transformation within IT and their business.

38 companies were nominated, all of whom have spoken publicly about their containerization initiatives recently, or plan to soon. From looking at so many excellent nominees, we realized there were really two different stories — so we created two award categories. In each category, we have a winner and three finalists.



Business Transformation

Customers in this category have developed company-wide initiatives aimed at transforming IT and their business in a significant way, with Docker Enterprise as a key part if it. They typically started their journey two or more years ago and have containerized multiple applications across the organization.




  • Bosch built a global platform that enables developers to build and deliver new software solutions and updates at digital speed.

Docker at DEVIntersection 2018



Docker will be at DEVIntersection 2018 in Las Vegas the first week in December. DEVIntersection now in its fifth year, brings Microsoft leaders, engineers and industry experts together to educate, network, and share their expertise with developers. This year DEVIntersection will have a Developer, SQL Server and AI/Azure tracks integrated into a single event. Docker be featured at DEVIntersection via the following sessions:

Modernizing .NET Applications with Docker on Azure

Derrick Miller, a Docker Senior Solutions Engineer, will deliver a session focused on using containers as a modernization path for traditional applications, including how to select Windows Server 2008 applications for containerization, implementation tips, and common gotchas.

Depend on Docker – Get It Done with Docker on Azure

Alex Iankoulski, a Docker Captain, will highlight how how Baker Hughes, a GE Company, uses Docker to transform software development and delivery. Be inspired by the story of software professionals and scientists who were enabled by Docker to use a common language and work together to create a sophisticated platform for the Oil & Gas Industry. Attendees will see practical examples of how Docker is deployed on Azure.

Docker for Web Developers

Dan Wahlin, a Microsoft MVP and Docker Captain, Continue reading

DockerCon Hallway Track Is Back – Schedule One Today



The Hallway Track is coming back to DockerCon Europe in Barcelona. DockerCon Hallway Track is an innovative platform that helps you find like-minded people to meet one-on-one and schedule knowledge sharing conversations based on shared topics of interest. We’ve partnered with e180 to provide the next level of conference attendee networking. Together, we believe that some of the most valuable conversations can come from hallway encounters, and that we can unlock greatness by learning from each other. After the success at past DockerCons, we’re happy to grow this idea further in Barcelona.

DockerCon is all about learning new things and connecting with the community. The Hallway Track will help you meet and share knowledge with Docker Staff, other attendees, Speakers, and Docker Captains through structured networking.

To participate in Hallway Tracks:

  1. Explore the Market – where all participants post the knowledge offers of topics they are willing to share, or questions they want to brainstorm.
  2. Pick a topic from the list (and/or create your own offer or question).
  3. Schedule your Hallway Tracks and meet in person at the Hallway Track Lounge!

If you are interested in attending DockerCon please register soon! If you are already registered and want Continue reading

Introducing Docker Engine 18.09

Docker Engine Diagram

Last week, we launched Docker Enterprise 2.1 – advancing our leadership in the enterprise container platform market. That platform is built on Docker Engine 18.09 which was also released last week for both Community and Enterprise users. Docker Engine 18.09 represents a significant advancement of the world’s leading container engine, introducing new architectures and features that improve container performance and accelerate adoption for every type of Docker user –  whether you’re a developer, an IT admin, working at a startup or at a large, established company.

Built on containerd

Docker Engine – Community and Docker Engine – Enterprise both ship with containerd 1.2. Donated and maintained by Docker and under the auspices of the Cloud Native Computing Foundation (CNCF), containerd is being adopted as the primary container runtime across multiple platforms and clouds, while progressing towards Graduation in CNCF.

BuildKit Improvements

Docker Engine 18.09 also includes the option to leverage BuildKit. This is a new Build architecture that improves performance, storage management, and extensibility while also adding some great new features:

  • Performance improvements: BuildKit includes a re-designed concurrency and caching model that makes it much faster, more precise and portable. When tested against the Continue reading

Docker and MuleSoft Partner to Accelerate Innovation for Enterprises

A convergence of forces in SaaS, IoT, cloud, and mobile have placed unprecedented requirements on businesses to accelerate innovation to meet those rapidly changing preferences. The big don’t eat the small, the fast eat the slow.

The industry has offered several solutions to this acceleration problem – from working harder to outsourcing and devops, but none of those solutions have really offered the levels of acceleration needed. The reason: there is too much friction slowing the art of the possible.

Docker and MuleSoft remove friction in the innovation process, from ideation all the way to deployment. MuleSoft provides a tops down architectural approach, with API-first design and implementation. The Docker approach is bottoms up from the perspective of the application workload with containerization, to both modernize traditional applications and create of new applications.  

Marrying those two approaches combined with the platform, tools and methodology, enable both organizations to help your business accelerate faster than ever before. Docker and MuleSoft bridge the chasm between infrastructure and services in a way never before achieved in the industry.

Together, Docker and MuleSoft accelerate legacy application modernization and new application delivery while reducing IT complexity and costs.

Introducing Docker’s Windows Server Application Migration Program


Last week, we announced the Docker Windows Server Application Migration Program, designed to help companies quickly and easily migrate and modernize legacy Windows Server 2008 applications while driving continuous innovation across any application, anywhere.

We recognize that Windows Server 2008 is one of the most widely used operating systems today and the coming end-of-support in January 2020 leaves IT organizations with few viable options to cost-effectively secure their legacy applications and data. The Docker Windows Server Application Migration Program represents the best and only way to containerize and secure legacy Windows Server applications while enabling software-driven business transformation. With this new program, customers get:

  • Docker Enterprise: Leading Container Platform and only one for Windows Server applications.
    Docker Enterprise is the leading container platform in the industry– familiar to millions of developers and IT professionals. It’s also the only one that runs Windows Server applications, with support for Windows Server 2016, 1709, 1803 and soon, 2019 (in addition to multiple Linux distributions.) Organizations routinely save 50% or more through higher server consolidation and reduced hardware and licensing costs when they containerize their existing applications with Docker Enterprise.
  • Industry-proven tools & services: Easily discover, containerize, and migrate with immediate Continue reading

Introducing Docker Enterprise 2.1 – Advancing Our Container Platform Leadership

Operational Insights with Docker Enterprise

Today, we’re excited to announce Docker Enterprise 2.1 – the leading enterprise container platform in the market and the only one designed for both Windows and Linux applications. When Docker Enterprise 2.1 is combined with our industry-proven tools and services in the new Windows Server application migration program, organizations get the best platform for securing and modernizing Windows Server applications, while building a foundation for continuous innovation across any application, anywhere.

In addition to expanded support for Windows Server, this latest release further extends our leadership position by introducing advancements across key enterprise requirements of choice, agility and security.

Choice: Expanding Support for Windows Server and New Kubernetes Features

Supporting Both Windows Server and Linux

Docker Enterprise 2.1 adds support for Windows Server 1709, 1803 and Windows Server 2019* in addition to Windows Server 2016. This means organizations can take advantage of the latest developments for Docker Enterprise for Windows Server Containers while supporting a broad set of Windows Server applications.

  • Smaller image sizes: The latest releases of Windows Server support much smaller image sizes which means improved performance downloading base images and building applications, contributing to faster application delivery and lower storage costs.
  • Improved compatibility requirements: With Windows Server 1709 and beyond, Continue reading

The Push to Modernize at William & Mary


At William & Mary, our IT infrastructure team needs to be nimble enough to support a leading-edge research university — and deliver the stability expected of a 325 year old institution. We’re not a large school, but we have a long history. We’re a public university located in Williamsburg, Virginia, and founded in 1693, making us the second-oldest institution of higher education in America. Our alumni range from three U.S. presidents to Jon Stewart.

The Linux team in the university’s central IT department is made up of 5 engineers. We run web servers, DNS, LDAP, the backend for our ERP system, components of the content management system, applications for administrative computing, some academic computing, plus a long list of niche applications and middleware. In a university environment with limited IT resources, legacy applications and infrastructure are expensive and time-consuming to keep going.

Some niche applications are tools built by developers in university departments outside of IT. Others are academic projects. We provide infrastructure for all of them, and sometimes demand can ramp up quickly. For instance, an experimental online course catalog was discovered by our students during a registration period. Many students decided they liked the experimental version Continue reading

Docker Certified Logging Containers and Plugins from Partners



The Docker Certified Technology Program is designed for ecosystem partners and customers to recognize Containers and Plugins that excel in quality, collaborative support and compliance. Docker Certification gives organizations enterprises an easy way to run trusted software and components in containers on the Docker Enterprise container platform with support from both Docker and the publisher.  

In this review, we’re looking at Docker Logging Containers and Plugins. Docker Enterprise provides built-in logging drivers to help users get information from docker nodes, running containers and services. The Docker Engine also exposes a Docker Logging Plugin API for use by Partner Docker logging plugins. The user’s needs are solved by innovations from the extensive Docker ecosystem that extend Docker’s logging capabilities which provide complete log management solutions that include searching, visualizing, monitoring, and alerting.

These solutions are validated by both Docker and the partner company and integrated into a seamless support pipeline that provide customers the world class support they have become accustomed to when working with Docker.

Check out the latest certified Docker Logging Containers and Plugins that are now available from our partners on Docker Store:

Docker Achieves FIPS 140-2 Validation


We are excited to share that we have achieved formal FIPS 140-2 validation (Certificate #3304) from the National Institute of Standards and Technology (NIST) for our Docker Enterprise Edition Crypto Library. With this validation and industry-recognized seal of approval for cryptographic modules, we are able to further deliver on the fundamental confidentiality, integrity and availability objectives of information security and provide our commercial customers with a validated and secure platform for their applications. As required by the Federal Information Security Management Act (FISMA) and other regulatory technology frameworks like HIPAA and PCI, FIPS 140-2 is an important validation mechanism for protecting the sensitivity and privacy of information in mission-critical systems.

As we highlighted in a previous blog post, Docker Engine – Enterprise version 18.03 and above includes this now-validated crypto module. This module has been validated at FIPS 140-2 Level 1. The formal Docker Enterprise Edition Crypto Library’s Security Policy calls out the specific security functions in Docker Engine – Enterprise supported by this module and includes the following:

  • ID hashes
  • Swarm Mode distributed state store and Raft log (securely stores Docker Secrets and Docker Configs)
  • Swarm Mode overlay networks (control plane only)
  • Swarm Mode mutual TLS implementation
  • Docker daemon socket Continue reading

The Top 6 Questions You Asked on Containerizing Production Apps

We recently hosted IDC research manager Gary Chen as a guest speaker on a webinar where he shared results from a recent IDC survey on container and container platform adoption in the enterprise. IDC data shows that more organizations are deploying applications into production using containers, driving the need for container platforms like Docker Enterprise that integrate broad management capabilities including orchestration, security and access controls.

The audience asked a lot of great questions about both the IDC data and containerizing production applications. We picked the top questions from the webinar and recapped them here.

If you missed the webinar, you can watch the webinar on-demand here.

Top Questions from the Webinar

Q: What are the IDC stats based on?

A: IDC ran a survey of 300+ container deployers from companies with more than 1,000 employees and have primary responsibility for container infrastructure in the US and modeled it from a variety of data sources they collect about the industry. 

Q: IDC mentioned that 54% of containerized applications are traditional apps. Is there is simple ‘test’ to see if an app can be containerized easily?

Source: IDC, Container Infrastructure Market Assessment: Bridging Legacy and Cloud-Native Architectures — User Survey Continue reading

Docker Certified Containers from Monitoring Partners


The Docker Certified Technology Program is designed for ecosystem partners and customers to recognize Containers and Plugins that excel in quality, collaborative support and compliance. Docker Certification gives organizations enterprises an easy way to run trusted software and components in containers on the Docker Enterprise container platform with support from both Docker and the publisher.

In this review, we’re looking at solutions to monitor Docker containers. Docker enables developers to iterate faster with software architectures consisting of many microservices. This poses a challenge to traditional monitoring solutions as the target processes are no longer statically allocated or tied to particular hosts. Monitoring solutions are now expected to track ephemeral and rapidly scaling sets of containers. The Docker Engine exposes APIs for container metadata, lifecycle events, and key performance metrics. Partner Monitoring solutions  collect both system and Docker container events and metrics in real time to monitor the health and performance of the customers entire infrastructure, applications and services. These solutions are validated by both Docker and the partner company and integrated into a seamless support pipeline that provide customers the world class support they have become accustomed to when working with Docker.

Check out the latest certified Docker Monitoring Continue reading

3 Customer Stories You Don’t Want to Miss at DockerCon Barcelona 2018

One of the great things about DockerCon is the opportunity to learn from your peers and find out what they’re doing. We’re pleased to announce several of the sessions in our Customer Stories track. In the track, you’ll hear from your peers who are using Docker Enterprise to modernize legacy applications, build new services and products, and transform the customer experience.

These are just a few of the sessions in the catalog today. You can browse the full list of sessions here. We also have a few more we’ll announce over the coming weeks (some customers just like to keep things under wraps for a little longer).

Desigual Transforms the In-Store Experience with Docker Enterprise Containers Across Hybrid Cloud

Mathias Kriegel, IT Ops Lead and Cloud Architect

Joan Anton Sances, Software Architect

We’re particularly excited to have a local company share their story at DockerCon. In this session, find out how Docker Enterprise has helped Desigual, a global $1 billion fashion retailer headquartered in Barcelona, transform the in-store customer experience with a new “shopping assistant” application.


Not Because We Can, But Because We Have To: Tele2 Containerized Journey to the Cloud
Dennis Ekkelenkamp, IT Infrastructure Manager
Gregory Bohncke, Technical Architect

How Continue reading

The Role of Enterprise Container Platforms

As container technology adoption continues to advance and mature, companies now recognize the importance of an enterprise container platform. More than just a runtime for applications, a container platform provides a complete management solution for securing and operationalizing applications in containers at scale over the entire software lifecycle.

While containers may have revolutionized the way developers package applications, container platforms are changing the way enterprises manage and secure both mission-critical legacy applications and microservices both on prem and across multiple clouds. Enterprises are beginning to see that container runtime and orchestration technologies alone don’t address these critical questions:

  • Where did this application come from?
  • Was the application built with company and/or industry best practices in mind?
  • Has this application undergone a security review?
  • Is my cluster performing as expected?
  • If my application is failing or underperforming, where should I look?
  • Will this environment run the same on the new hardware/cloud that we’re using?
  • Can I use my existing infrastructure and/or tools with this container environment?

Leading Industry Analysts Highlight Container Platforms for Enterprise Adoption

For some time, there was a lot of confusion in the market between orchestration solutions and container platforms. But in 2018, we are seeing more alignment across major Continue reading

Now Open: DockerCon Europe Diversity Scholarship!

Over the last 3 years, Docker has provided over 75 financial scholarships to members of the Docker community, who are traditionally underrepresented, to attend DockerCon. By actively promoting diversity of all kinds, our goal is make DockerCon a safe place for all to learn, belong and collaborate.

With the continued support of Docker and one of our DockerCon scholarship sponsors, the Open Container Initiative (OCI), we are excited to announce the launch of the DockerCon Europe Diversity Scholarship Program. This year, we are increasing the number of scholarships we are granting to ensure attending DockerCon is an option for all.


Apply Now!

Deadline to Apply:

Friday, 26 October, 2018 at 5:00PM PST

Selection Process

A committee of Docker community members will review and select the scholarship recipients. Recipients will be notified by the week of 7 November 2018.

What’s included:

Full Access DockerCon Conference Pass

Please note, travel expenses are not covered under the scholarship and are the responsibility of the scholarship recipient.


Must be able to attend DockerCon Europe 2018

Must be 18 years old or older to apply

Must be able to travel to Barcelona, Spain

We wanted to check back in with DockerCon Continue reading

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