DevOps and Docker Talk show

DevOps and Docker Talk

Summary: Short question and answer clips from my weekly YouTube Live ask-me-anything show. Topics cover Docker and container tools like Kubernetes, Swarm, AWS, Cloud DevOps and the full software lifecycle supply chain. Full YouTube shows and more info available on website.

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Podcasts:

 Docker Bind-mount and Volume File Changes During Entrypoint | File Type: audio/mpeg | Duration: 00:02:49

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

 Docker Swarm Install in AWS | File Type: audio/mpeg | Duration: 00:05:56

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

 Docker Environment Configs, Variables, and Entrypoints | File Type: audio/mpeg | Duration: 00:22:07

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

 Use Docker Compose or Swarm For A Single Server? | File Type: audio/mpeg | Duration: 00:02:10

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

 Auto Setup of Mongo Replicas in Docker | File Type: audio/mpeg | Duration: 00:03:39

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

 Using Supervisor To Run Multiple Apps In A Container | File Type: audio/mpeg | Duration: 00:05:04

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.

 Should You Move Postgres to Containers | File Type: audio/mpeg | Duration: 00:07:18

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

 Docker "runC" Security Vulnerability: CVE-2018-5736 | File Type: audio/mpeg | Duration: 00:07:34

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

 Updating A Proxy From A Different Container | File Type: audio/mpeg | Duration: 00:07:27

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

 Windows 10 Containers Get Process Isolation | File Type: audio/mpeg | Duration: 00:07:49

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.

 Getting Started With Raspberry Pi Development in Docker | File Type: audio/mpeg | Duration: 00:04:17

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.

 Elasticsearch Local Development Shows Yellow Health Status | File Type: audio/mpeg | Duration: 00:04:08

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.

 Docker Network IP Subnet Conflicts with Outside Networks | File Type: audio/mpeg | Duration: 00:05:35

A viewer asks about how their local docker container IP's, if behind NAT, can have issues with outside subnets at their company. I explain some of the ways even NAT won't solve IP routing for containers and how you can change your settings to different private subnets.

 Docker Swarm Service Fails Deployment When Image Prunes | File Type: audio/mpeg | Duration: 00:06:52

Someone asks about image pruning while a Swarm service is in the middle of deployment, and how they've experienced failed containers. I reply with the details of what's going on in specific steps of a Service creation and deployment, and how the prune command could interfere.

 Updating Swarm Configs and Secrets Without Downtime | File Type: audio/mpeg | Duration: 00:06:46

I answer questions about updating your app secrets and configs in Docker Swarm without downtime

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