Learn Docker | Containers using Interactive Browser Based Scenarios

Install

📦 Install Docker en Ubuntu Develop faster. Run anywhere.
📦 Install Docker en Windows Accelerate how you build, share and run modern applications.
📦 Install Docker Compose en Ubuntu Accelerate how you build, share and run modern applications.

Inicializar Docker Ubuntu

service docker start

service docker status

service docker stop

Correcion del Error - Instalaccion

System has not been booted with systemd as init system (PID 1). Can't operate - Systemctl

• Download the latest package: https://docs.microsoft.com/en-us/windows/wsl/install-manual

If you're using an ARM64 machine, please download the ARM64 package instead. If you're not sure what kind of machine you have, open Command Prompt or PowerShell and enter: systeminfo | find "System Type". Caveat: On non-English Windows versions, you might have to modify the search text, for example, in German it would be systeminfo | find "Systemtyp".

Fix: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Error al inicializar Docker Ubuntu

sudo update-alternatives --config iptables

Then re-start docker service

sudo service docker start

And check docker status again with

sudo service docker status

Documentation Fix: Cannot connect to the Docker daemon

DockerHub

• Tutorial Docker

Tutorial Docker - Cómo instalar y usar Docker en Ubuntu 20.04

Images Docker

DockerFiles

• Creador de imagenes

Descargar una imagen de postgre 9.6

docker run postgres:9.6

Comandos Comunes

Version de Docker

docker --version

Version de Docker compose

docker-compose --version

Permite correr un contenedor

docker run

Permite descargar imagen y no correr

docker pull

Permite ver la imagenes

docker images | head

Suprimir el Sudo del principio

sudo usermod -aG docker ${USER}

su - ${USER}

Permite ver los contenedores corriendo

docker ps

Permite ver los contenedores que corriendo hace un tiempo

docker ps -a

Permite recuperar los datos de un contenedor

docker start ContainerID

Ver los Logs

docker log ContainerID

Eliminar Contenedor

docker rmi Idcontainer

Ejecutar comando en un Docker en funcionamiento

docker exec -it ContainerID sh
- ls   

Detener contenedor

docker stop ContainerID

Ejecutar en Backbround

docker run -d nombre

Contruir Imagen

docker build -t devrrior/docker-django .

Correr Imagen

docker run -p 8000:8000 devrrior/docker-djando

Correr sin log

docker run -d -v /home/briandb/docker-django/:/app -p 8000:8000 devrrior/docker-django

[5704613836e41711efa45f5e875257c6bae734e68b18668f022040d3fd8133e7]

Correr con Log

docker logs --follow 5704613836e41711efa45f5e875257c6bae734e68b18668f022040d3fd8133e7

Entrar al contenedor

 docker exec -it 5704613836e41711efa45f5e875257c6bae734e68b18668f022040d3fd8133e7 /bin/sh

Volumenes

docker run -v /home/briandb/docker-django/:/app -p 8000:8000 devrrior/docker-django

Comandos en casos de proyectos

dentro de la careta donde se tien un proyecto!

vim Dockerfile

Ejemplo

FROM node:12.22.1-alpine3.11

WORKDIR /app
COPY . .
RUN yarn install --production

CMD ["node", "/app/src/index.js"]

Docker Hub

Ejemplo

docker pull node

docker pull alpine

Construccion del Contenedor

docker build -t getting-started

Ejecutar

docker run -dp 3000:3000 getting-started

Guardar un contenedor

sudo docker run -d -v /home/brian/Documents/Docker/etc/etc:/etc/todos -p 3000:3000 getting-started

• Detener y volver a ejecutar, se guardaraon los cambios
• ir a localhost:3000

Reconstruir Imagen Docker

sudo docker run -d -v /home/brian/Documents/Docker/etc/etc:/etc/todos -p 3000:3000 getting-started

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