Docker Machine ? Deploys and manages vhost/VM on different platforms via its "drivers" : your Mac, Digital Ocean, AWS, a physical server VM are created and deployed with Docker Engine installed, thus you can connect to it with your Docker Client.

Container / image An image is like a class, a container is like an instance or object of this class.

Docker Client : can manipulate containers Docker Engine : is installed on a vhost or host to handle containers, it is manipulated by a local or remote Docker Client

Base commands : - docker run xxx (launch image xxx into a new container - dl it from docker hub if not found locally) - docker image ls (list available images on current host) - docker container ls -a (list all containers even not active ones)

Run a container in background docker run -d Port forwarding with a docker container docker run -p 4000:80 (will map port 4000 of current host to port 80 of docker container)

Docker Registry : a registry contains multiple repository which contains multiple docker images. You can setup a private registry or use public ones

Service - part of a distributed application like application server or DB server. A service deploys multiple containers in a load balanced subnet

In production you deploy a service with docker swarm and docker stack deploy Make use of a docker-compose.yml file to specify image used and scalability parameters

Stack - other name for a distributed application A stack is managed with docker stack commands

Swarm A docker swarm is a group of machine/host/vhost linked into a cluste Each host into a cluster is called a node

Ex : write a docker compose file Write a docker compose file that will setup two nodejs micro services (server + worker) with their latest image version, allow them to connect, and share with them env var containing a DB connection string. The worker app should be scaled up to 4 services

If you can't, continue to be nice to them. Eventually, they may start being nice. A bully wants to have friends, too.

Now I know what it's like to be a rock star. No, I didn't sleep with 5 groupies at once. But I was interviewed about 45 times in 5 days in 3 cities.

When the burdens of the presidency seem unusually heavy, I always remind myself it could be worse. I could be a mayor.

J. K. Rowling has said that she was bullied in school. She was a daydreamer and had her nose in books all the time, much like some of her characters today.

I'm always playing a role, whether it's the role of the mayor, the role of a news anchor, or a role of a crazy talk-show host. But there was a specific function. 'On Dancing With The Stars', I had nothing to do but be me, schlepping around the floor. And when I host 'America's Got Talent', that's really me just talking to regular folks.

We are really looking at all of our options. I mean, listen, whether it's IVF or whatever it is, we want to have a baby and we will have a baby.

Among the many problems which beset the novelist, not the least weighty is the choice of the moment at which to begin his novel.

I looked Death right in the face.

Transformation does not start with someone else changing you; transformation is an inner self reworking of what you are now to what you will be.

Worries are pointless. If there's a solution, there's no need to worry. If no solution exists, there's no point to worry.

I don't even know what an 'It' girl is. As far as I'm concerned, an 'It' girl is somebody who doesn't do anything except go to parties and get her photograph taken.

The only legitimate artists in England are the architects.

The young people think that the old people are fools; but the old people know that the young people are fools!

The 2004 Election marks the first time in modern political history that Republican voter turnout matched Democratic turnout in a presidential election year.

It's not until the very last phase that you know how good the works are going to be.

I have never in my career embarked on a journey towards controversy. I have never deliberately set a flame.

Nothing is so aggravating as calmness.

Under the right circumstances, groups are remarkably smart - smarter even sometimes than the smartest people in them.

I think we need one recognized, respected public figure to make a tough, blunt statement on just what Reagan's record is and what he might do to the country, let alone the Republican Party before Christmas.

The first condition of immortality is death.

I was in the big leagues my first year in pro ball - pretty fast. I really don't think I had an understanding of what it meant to be a pitcher at that level at that point.

I like to say there's certain things you can't take back: One of them is 'I love you,' and one of them is bullets.

A great writer creates a world of his own and his readers are proud to live in it. A lesser writer may entice them in for a moment, but soon he will watch them filing out.

Always remember you are braver than you believe, stronger than you seem, and smarter than you think.