***THREAD***

I’ve been on the phone with colleagues about the hack all morning. None of us can figure out why #CISA chose this particular response to the breach. Couple of things struck us as curious.

The agencies targeted are not responding how you might expect...

I'm going to tell you a little bit how we work on features at GitHub. It's simple, but very powerful in my opinion. At GitHub we have a high performance culture.

We are deploying changes almost all the time while keeping the service running and the deployment failure ratio needs to be super low! We are constantly working on new medium/big features, we have frequent deploys and required peer reviews.

How do we know that big features are not conflicting with each other in functionality and in version control. How do we merge the work done in these non-trivial features? How do we do prevent peer reviews slow down our productivity?

With basically two things: split the work in small batches and feature flags. We don't have long-lived feature branches. We do very small changes all the time and deploy them.

We could split a feature in tens or hundreds of PRs, but until it is beta or GA, we don't expose it to users by using feature flags.

One of my purposes for 2021 is to simplify Docker for beginners.

Let's start with some definitions:

🏠Docker host
⚙️Docker engine
❓ Docker client
📝Dockerfile
📑Docker Image
🐳Docker Container
🐙Docker Compose
🪣 Docker Registry
🐳🐳🐳Docker Swarm

Definitions Below 👇

🏠Docker (Active) Host

A computer with Docker installed and the daemon running.

It can process Docker and non-Docker workloads.

⚙️Docker Engine

A Client-Server application. It has 3 components:

- "daemon process": A server that is a type of long-running program.

- "Rest API": to specify interfaces that programs can use to talk and interact with the daemon.

- "CLI": A command-line interface client

❓Docker Client

It sends commands to dockerd, using the Docker API.
It can communicate with multiple daemons.

📝Dockerfile

It's a text document that contains all the commands a user could call on the command line to assemble an image.

X : Can you apply pace layers to maps?
Me : You can but what is where evolves. However, same rules apply to things, practices, data, knowledge and ethical values. All are forms of evolving capital. In the mapping world, we refer to this with pioneers, settlers and town planners.

X : What's the robot for?
Me : Image from an older presentation slide, don't worry it has no relevance.
X : Is this linked to diffusion?
Me : Not simply. Evolution of a single component can consist of many hundreds of diffusion curves i.e. a virus diffuses but it also evolves.

X : Why have you got DevOps in legacy? We haven't even started yet.
Me : That's not my problem. I would take a look at serverless.
X : DevOps is serverless.
Me : Some of the practices maybe co-opted (see ITIL vs DevOps) but the new faction will decide what it is or isn't.

X : I also disagree with your methods graphic.
Me : Do you mean this? As applied to the following map?
X : Yes. Lean is suitable for innovation.
Me : Ah, that depends upon what you mean by innovation. If you mean Genesis then lightweight XP has it beat.

X : I disagree.
Me : Well, I've had 15 years of people telling me that Agile works everywhere or Lean works everywhere or Six Sigma works everywhere and why all the competing methods don't. I have no interest in the conversation. Use appropriate methods based upon context.

Data drop! Some numbers, nuggets and trends for bowl season which I find interesting...

Miami has lost 9 of its last 10 bowl games and is 2-10 ATS in its last 12 bowl games. Oklahoma State has covered each of its last four bowl games, three coming as an underdog.

This is the first time since 2011 Texas is favored in a bowl game...

Wisconsin has won five of their last six bowl games with the only loss in that span a one-point loss to Oregon last year in the Rose Bowl. Each of Wake Forest’s last five bowl games have been one-possession games (6, 3, 3, 8, 6)...

Mike Leach coached teams are 1-9 ATS in their last ten bowl games (4-6 SU). Included in those ten games are four outright losses and a 1-7 ATS mark as a favorite. In the last five years, Leach’s teams have averaged 19.6 PPG in bowl games (28 is the high in that span)...