docker

Question 1

How to display all the containers

Answer 1

docker ps

Question 2

How to get a new image?

Answer 2

docker pull [image]

Question 3

how to start and how to stop a container?

Answer 3

docker start [Image] / docker stop [containerId]

Question 4

What is a Container?

Answer 4

Container is a runnig environment for an IMAGE

Question 5

How how to list all the downloaded images?

Answer 5

docker images

Question 6

how to run a container on dettached mode?

Answer 6

docker run -d [image]

Question 7

List Running and stopped containers

Answer 7

docker ps -a

Question 8

How to pull a specific image version?

Answer 8

by adding a tag after the image name

Question 9

how to pull an image and starts a container?

Answer 9

docker run redis

Question 10

Container port dvs HOST port

Answer 10

You can duplicate Container port but not Host ports

You have to bind your computer port (host port) to the container ports

Question 11

How to Delete all the images?

Answer 11

docker system prune

Question 12

[Actualizado] How to delete specific image?

Answer 12

docker rm imageName

Question 13

how to bind a host port to a container post?

Answer 13

docker ps -p6000:6123

Question 14

how to open the interactive terminal?

Answer 14

fdockdocker exec -it [containerId] /bin/bash

Question 15

How to display all docker networks?

Answer 15

docker network ls

Question 16

How to Create a docker network?

Answer 16

docker network create mongo-network

Question 17

2 steps
to make 2 containers to communicate with each other?

Answer 17

1) Create a docker network
2) run both containers on the same network

Question 18

What’s the Flag to set a network, when starting a container?

Answer 18

–net

Question 19

What’s docker Compose?

Answer 19

A file which contains common attributes, to make easier to run commands

Question 20

How to you compile an image?

Answer 20

docker build -t img_from .

Question 21

Keywords found on a Dockerfile?

Answer 21

FROM

WORKDIR

EXPOSE

COPY

RUN

ENTRYPOINT

CMD

LABEL

Question 22

What does -itd stand for?

Answer 22

interactive teletype-enabled and dettached

Question 23

How to display the current docker version?

Answer 23

docker –version

Question 24

How to Display image size

Answer 24

docker ps -s

Question 26

Docker Official Images URL?

Answer 26

http://hub.docker.com/

Question 27

Como determinas si to un recurso esta operando correctamente?

Answer 27

Using Healthcheck

Question 28

Que valor devuelves para indicar que un contenedor fallo, mientras se verificaba si funcionaba correctamente?

Answer 28

EXIT 1

Question 29

Que comando usar para buscar imagenes en el docker hub?

Answer 29

docker search python:3.6