Check docker "hidden" wsl (Win only)
wsl --list --verbose
===================================================
Working with docker command:
- Run docker tutorial command (in docker)
docker run -dp 80:80 docker/getting-started
docker run --name getting-started -dp 80:80 docker/getting-started
This demonstrates port mapping
docker ps
docker ps -a
===================================================
Very basic Workflows
------------------------
docker images
------------------------
Dockerfile
docker build -t todo-list-manager .
------------------------
docker containers
------------------------
docker run -dp 3000:3000 todo-list-manager
docker run --name todo-list-manager -dp 80:80 docker/getting-started
docker stop <the-container-id>
docker rm <the-container-id>
docker rm -f <the-container-id>
- Run Alpine container with bash
docker run -it alpine
docker run -it alpine echo AAA
===================================================
Docker volumes - Named volumes
-------------------------
docker volume create todo-db
docker run -dp 3000:3000 -v todo-db:/etc/todos todo-list-manager
docker volume inspect todo-db
docker volume ls
===================================================
Docker volumes - Bind Mounts
-------------------------
docker run -dp 3000:3000 \
    -w /app -v "$(pwd):/app" \
    node:22-alpine \
    sh -c "yarn install && yarn run dev"

docker logs -f <container-id>
===================================================
Docker networking
-------------------------
docker network create todo-app
docker run -d \
    --network todo-app --network-alias mysql \
    -v todo-mysql-data:/var/lib/mysql \
    -e MYSQL_ROOT_PASSWORD=secret \
    -e MYSQL_DATABASE=todos \
    mysql:8.0

Test (inside mysql container):
------------------------
mysqL -p
show databases;

Check --network-alias to IP mapping
-----------------------------------
docker run -it --network todo-app nicolaka/netshoot
dig mysql


docker run -dp 3000:3000 \
  -w /app -v "$(pwd):/app" \
  --network todo-app \
  -e MYSQL_HOST=mysql \
  -e MYSQL_USER=root \
  -e MYSQL_PASSWORD=secret \
  -e MYSQL_DB=todos \
  node:22-alpine \
  sh -c "yarn install && yarn run dev"

Test (inside MySQL container):
------------------------
use todos;
select * from todo_items;

docker logs <container-id>
docker exec -it <mysql-container-id> mysql -p todos
===================================================
Docker Compose
-------------------------
docker-compose.yml
docker-compose up -d
docker-compose logs
docker-compose down 
	(--volumes)
===================================================
Layers and good practices
How layers work, Layer caching
Good practices writing Dockerfile

docker image history todo-list-manager
docker image history --no-trunc todo-list-manager
docker scout cves todo-list-manager  -- requires Docker login

.dockerignore
===================================================
Docker registry
docker tag todo-list-manager YOUR-USER-NAME/todo-list-manager
docker push YOUR-USER-NAME/todo-list-manager
docker run -dp 3000:3000 YOUR-USER-NAME/todo-list-manager
===================================================
EXTRA: Image vs. architecture

docker pull alpine
docker pull --platform=linux/arm64 alpine

docker run alpine
docker run --platform linux/arm64 alpine  

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

docker buildx build --platform linux/amd64,linux/arm64 -t YOUR-USER-NAME/todo-list-manager --push .