docker-fherrera

Del curso docker para desarrolladores by Fernando Herrera

Resources & instalaciones-docker.md

https://gist.github.com/Klerith/3f611ff0e5c15b733ac63365ab310a35

Sección 3: Volúmenes y redes

https://gist.github.com/Klerith/0cc4a1fffd817f78f4dca41c900e3c8e

Sección 4: Docker Compose

https://gist.github.com/Klerith/8cfc637868212cfb888333ecaa6080e1

https://www.npmjs.com/package/node-cron

docker cli commands

docker images ls --all

docker pull mariadb:jammy

docker container ls

docker container ls --all

docker exec -it 460b3cf39dab /bin/bash

docker container inspect 70c4021e618a

docker container start my-postgres14

docker container stop my-postgres14

docker container logs my-postgres14

docker container rm -f 2577ae2b026a1992978536db7bb904ea43c57b39fbba9b4d8f44d9b2a754574f

docker volume create world-db

docker volume ls

docker volume inspect world-db

docker volume rm -f world-db

docker container run --name world-db -d -p 3306:3306 -e MARIADB_USER=example-user -e MARIADB_PASSWORD=user-password -e MARIADB_ROOT_PASSWORD=root-secret-password -e MARIADB_DATABASE=world-db --volume world-db:/var/lib/mysql mariadb:jammy

docker container run --name phpmyadmin -d -e PMA_ARBITRARY=1 -p 8080:80 8ec7b60cca6c

docker network --help

docker network ls

docker network create world-net

docker network connect world-net 8225f9b74c6c
docker network connect world-net f567c8133cad

docker network inspect world-net

docker network rm -f world-net

docker container run --name nest-app -w /app -p 80:3000 -v "$(pwd)":/app node:16-alpine3.16 sh -c "yarn install && yarn start:dev"

docker container exec -it 1d7695fb55477aa8cc8eb465f390c0cdae2861e8f51bda7974363b0bf47bb662 /bin/sh

Docker Hub images - Laboratorio

	docker volume create postgres-db

	docker container run -dp 5432:5432 --name postgres-db -e POSTGRES_PASSWORD=123456 -v postgres-db:/var/lib/postgresql/data postgres:15.1

	docker container run --name pgAdmin -e PGADMIN_DEFAULT_PASSWORD=123456 -e PGADMIN_DEFAULT_EMAIL=superman@google.com -dp 8080:80 dpage/pgadmin4:6.17

	docker network create postgres-net

	docker network ls

	docker container ls --all

	docker network connect postgres-net 5fe6b7518359

	docker network connect postgres-net 02d2ef1e47c0

	docker network inspect postgres-net

	docker container rm -f f12d7d8781b5 02d2ef1e47c0

	docker volume rm postgres-db

	docker network rm postgres-net

Una vez creado docker-compose.yml

docker compose up

docker compose down

docker volume ls

docker volume rm postgres-pgadmin_postgres-db

docker volume prune

docker image rm 88843c71ff11 178f27190ac4 ccd94e8b5fd9 8ec7b60cca6c 7ac3e08c2412

docker compose -f compose.yml up

docker compose -f compose.yml down

chown -R 5050:5050 ./data-vol/pgAdmin

docker compose -f docker-compose.yml up

docker compose -f docker-compose.yml down

docker build --tag cron-ticker .		#por defecto tag 'latest'

docker build --tag cron-ticker:1.0.0 .		#con tag especifico

docker image tag cron-ticker:1.0.0 cron-ticker:conejo		#renombrar tag

docker image tag cron-ticker cron-ticker:castor			#lo mismo que:
docker image tag cron-ticker:latest cron-ticker:castor

docker login

Crear repo en hub.docker.com (eblind39/cron-ticker) y renombrar image al formato del repo

docker image tag cron-ticker eblind39/cron-ticker		#lo mismo que:
docker image tag cron-ticker:latest eblind39/cron-ticker:latest

docker push eblind39/cron-ticker	#lo mismo que:
docker push eblind39/cron-ticker:latest

Darle un nombre significativo a la versión latest

docker image tag eblind39/cron-ticker:latest eblind39/cron-ticker:castor

docker push eblind39/cron-ticker:castor

docker container run eblind39/cron-ticker:castor

docker logout

buildx

docker buildx ls

docker buildx create --name mybuilder --driver docker-container --bootstrap

docker buildx use mybuilder

docker buildx ls

output

AME/NODE DRIVER/ENDPOINT STATUS BUILDKIT PLATFORMS

mybuilder * docker-container

docker buildx inspect

lista todos los detalles del builder seleccionado por defecto

docker buildx build --platform linux/amd64,linux/arm64,linux/mips64,linux/arm/v7 --tag eblind39/cron-ticker:latest --push .

list in hub.docker.com

Digest OS/ARCH Last pull Compressed Size

60d1a398a57b linux/amd64 --- 55.32 MB

1b0c33190ec3 linux/arm/v7 --- 55.32 MB

cf04c5961b2d linux/arm64 --- 55.32 MB

51cd144bc743 linux/mips64 --- 55.32 MB

darle tag descriptivo a nuestro latest para que no sea sobre-escrito por otro latest a futuro

docker buildx build --platform linux/amd64,linux/arm64,linux/mips64,linux/arm/v7 --tag eblind39/cron-ticker:guacamayo --push .

Multi-State Build

• Variables de entorno para ambientes
• Stages como:
  • dev
  • dependencies
  • prod-dependencies
  • prod
  • runner
  • builder
  • tester
• Configuraciones adicionales
• Dockerfile + Docker Compose
• Bind mounts en Compose
• Seleccionar un stage específico a ejecutar únicamente
• Docker Compose para producción
• Auto tag en Compose

eliminar mybuilder

docker buildx ls

docker buildx use default

docker buildx rm mybuilder

COPY vs ADD & Dockerfile COPY command

https://phoenixnap.com/kb/docker-add-vs-copy

https://docs.docker.com/reference/dockerfile/#copy