Displaying episodes 61 - 75 of 75 in total

Use Docker Compose or Swarm For A Single Server?

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

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

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

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

Docker "runC" Security Vulnerability: CVE-2018-5736

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

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

In Docker 18.09.1 and Docker Desktop (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

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

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

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

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

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

Apache In Containers And Multiple Virtual Host Websites

I answer questions about designing Apache web servers for multiple Websites in containers

Container Non-root Users, SUDO, GOSU, and File Permissions

I answer a question about using sudo in containers and file permissions when using non-root users.

Alpine Linux As A Base Image, Is It Really Secure?

Alpine Linux container images are often regarded as the "best for production, security, and image size", but I debate this based on several trends and current limitations.

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