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.
📑Docker Image

It's a file, composed of multiple layers, often based on another image, that contains everything you need to run your application.

Containers run on top of existing images.
🐳Docker Container

It's a standard unit of software that packages up code and dependencies, running as a process on the host machine.
🐙Docker Compose

It's a tool for defining and running multi-container Docker applications, called services.

You use a YAML file to configure the services, that can be created/started/stopped with a single command.

It works well in development, testing, and production.
🪣 Docker registry

It's a stateless server-side application to store Docker images. The images can be pulled or pushed.

It can be public/private.

Docker Hub is a public Docker registry.
🐳🐳🐳Docker Swarm

It's used to manage multiple machines where Docker is installed.

It allows you to manage multiple containers deployed across multiple host machines (nodes).

More from Internet

A thread of resources for aspiring & new Product Managers:

(should also be useful for Eng, Design, Data Science, Mktg, Ops folks who want to get better at PM work or want to build more empathy for your PM friends ☺️)

(oh, and pls also share *your* favorite resources below)

👇🏾

1/

Product Management - Start Here by @cagan
(hard to go wrong if you start with Marty Cagan’s

2/

Tips for Breaking into PM by @sriramk
(I’ve recommended this thread in my DMs more often than any other thread, by a pretty wide


3/

Top 100 Product Management Resources by @sachinrekhi
(well-categorized index so you can focus on whatever’s most useful right

4/

Brief interruption.

It’s important to understand your preferred learning style and go all in on that learning style (vs. struggling / procrastinating as you force a non-preferred learning
We’ve spent the last ten months building #CitizenBrowser, a project that aims to peek inside the Black Box of social media algorithms, by building a nationwide panel to share data with us. Today, we are publishing our first story from the project. /1

.@corintxt crunched the numbers and found that after Facebook flipped the switch for political ads, partisan content elbowed out reputable news outlets in our panelists’ news feeds.
https://t.co/Z0kibSBeQZ /2

You can learn more in our methodology, where we describe how we did this and what steps we took to ensure that we preserved the panelists' privacy. https://t.co/UYbTXAjy5i /3

Personally, this project is the culmination of years of experiments trying to figure out how to collect data from social media platforms in a way that can lead to meaningful reporting. I’ve described a couple of highlights below 👇 /4

My first attempt was in 2016 at Propublica, when I was working with @JuliaAngwin . We were interested in seeing if there was a difference in the Ad interests FB disclosed to users in their settings and the interests they showed to marketers. /5

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