Devops And Docker Talk

In this episode, I am joined by Phil Estes of IBM, Scott Coulton of Microsoft, and Sujay Pillai. We're all working in the DevOps space and discuss topics and open source projects weeks before DockerCon. Topics include Kubernetes, CNCF, ContainerD, CNAB, Rootless Docker, Linux security in containers, and more.

In this episode, I chat with Laura Tacho from CloudBees and Marcos Lilljedahl from iúnigo, both Docker Captains and developers. We take questions from the live audience and discuss topics ranging from the difference between Jenkins and Jenkins X, to Facebook's osquery and other new open source, to Docker's upcoming 19.03 release and its new features.

I answer a question about how to build multiple Docker images from a single GitHub repository. I talk about how to change which Dockerfile Docker build will use, and how to control the path (or context) that Docker builds from.

I answer a question about using TLS/SSL certificates in local development with Docker for microservices and then how to use those certs in production Docker. I talk about Let's Encrypt, Traefik, and more.

Docker Captain Michael Irwin and I discuss Java .war files in containers, and how you should break them up. We answer a question on how to design them for easy isolation and replacement.

Docker Captain Michael Irwin and I discuss backups of databases in a container cluster like Docker Swarm.

Docker Captain Michael Irwin and I go over various storage options for persistent volumes in Swarm, and how you need to think about storage for Docker.

In March of 2019 I talked with Michael about the new "docker-app" experimental tool. This clip talks about why it exists, and how to use it. In April 2019 Docker released a beta of 19.03 that includes "docker-app" as a plugin to the standard docker CLI, as "docker app", but most other features of this tool stay the same. We also talk about the standard behind this tool, CNAB.

In this episode, I list the steps to copy or sync files between a docker volume and the host

In this episode I quickly list the steps to setup a Docker Swarm in AWS using docker-machine and shell scripts

I go through the multiple ways to get your environment variables into a container, and what shouldn't go into your ENV's.

In this episode, I give a quick answer to the discussion on a single production server. Should you use docker-compose or Docker Swarm?

In this episode, I give a quick answer on how you might design MongoDB and other database servers for auto-clustering inside Docker.

In this episode, I answer a question on when you should run multiple apps in a container, and how you can use supervisor to do that.

In this episode, I answer the question: should you migrate your postgres servers into containers.

In this episode, I talk about the recent Docker runc vulnerability and what you need to do about it.

In this episode I answer a question about how to control docker and other containers like a nginx proxy from inside a seperate container.

In Docker 18.09.1 and Docker Desktop 2.0.0.2 (stable) in January 2019, we now have a new option for running Windows Containers on Windows 10 in "process isolation mode" which removes the need to launch a full Windows Server Hyper-V VM. It's a great new way for running lightweight Windows Containers, but has its own limits and config requirements.

A viewer asks how they can prototype their software in Docker with a Raspberry Pi. I explain the various parts of the workflow including ARM 64 vs. x64 CPU architectures, the benefits of QEMU emulation in Docker Desktop, and how to get Docker images from your local machine to the Pi.

A viewer asks why their Elasticsearch server on their local development setup with Docker Compose would give them a yellow health status. I talk about the common causes for this in my own experience with shard replication.