docker pull <image_name>	pulls image from repo
docker run image_name:9.6	download and run with spec.version, run creates container from image. start just start it
docker ps	list all runninig containers
docker images	list all mages
docker run -d <image_name>	run in detached mode (background)
docker stop <container-ID>	stops container
docker start <container-ID>	restarts container
docker ps -a	list all (running and not running)
docker run -p5000:3180	port binding HOST_port:CONTAINER_port
docker logs <container_ID>	display logs
docker run –name <some_name> <image_name>	give name to a container
docker exec -it <container_id> /bin/bash	get terminal of continer (env for enviroments) /bin/sh in case there is no /bin/bash
docker network ls	internal docker network list
docker network create <network_name>	create new network inside docker
docker run -p 27017:27017 -d \ -e MONGO_INITDB_ROOT_USERNAME=admin \ -e MOONGO_INITDB_ROOT_PASSWORD=passw \ –name mongodb \ –net mongo-network \ mongo	start mongodb, set ports, set network, set credentials.
docker run -d \ -p 8081:8081 \ -e ME_CONFIG_MONGODB_ADMINUSERNAME=admin \ -e ME_CONFIG_MONGODB_ADMINPASSWORD=passw \ –net mongo-network \ –name mongo-express \ -e ME_CONFIG_MONGODB_SERVER=mongodb \ mongo-express	connect mongo UI, to mongoDB
docker-compose -f <yaml_file> up	run containers with yaml config file
docker-compose -f <yaml_file> down	shutdown containers and network

### Docker compose ###
### .yaml file example ###

version: '3'     ### docker compose version
services:
  mongodb:
    image: mongo
    ports:
     - 27017:27017
    environment:
     - MONGO_INITDB_ROOT_USERNAME=admin
     - MONGO_INITDB_ROOT_PASSWORD=passw
  mongo-express:
    image: mongo-express
    ports:
     - 8080:8081
    environment:
     - ME_CONFIG_MONGODB_ADMINUSERNAME=admin
     - ME_CONFIG_MONGODB_ADMINPASSWORD=passw
     - ME_CONFIG_MONGODB_SERVER=mongodb

### Dockerfile - Build image file ### filename has to be Dockerfile

FROM <image>                      ### usually some linux distro or app or...###
ENV MONGO_DB_USERNAME=admin \     ### or some other app credentials###
    MONGO_DB_PASSWORD=passw       ### optional, to avoid to change .yaml
RUN mkdir -p /home/app            ### execute linux command inside container
                                  ### it will make dir inside container
COPY . /home/app                  ### copy content from host to container
CMD ["node"."/home/app/server.js"] ### or whatever has to be started inside
                                  ### -- entry point command

docker build -t <app-image-name:ver_xx> .
### Dockerfile must exist in the current dir ###

docker rm <container_id>	remove container
docker rmi <image_id>	delete image

### Private repository (docker registry) ###
### Create private repository on AWS ### (repo per image)

docker login ###copy command from repo provider (AWS)
### AWS cli must be installed and credentials configured

###image naming in docker registry
   registryDOMAIN/imageName:tag

### rename image
docker tag myAPP:1.0 domain/myAPP:10

### push to repo
docker push domain/myAPP:10
 

docker run -v /home/myapp/mysql:/var/lib/mysql/data	mount volume host:container (host volumes)
docker run -v /var/lib/mysql/data	docker will chose where to mount /var/lib/docker/volumes/random_hash/_data (anonymus volume)
docker run -v name:/var/lib/mysql/data	named volumes. like anonymus but you can reference volume by name (mostly used)

version: '3'     ### docker compose version
services:
  mongodb:
    image: mongo
    ports:
     - 27017:27017
    volumes:
     - data-db:/var/lib/mysql/data     #### named volume
#####################
    some other config
#####################

                     ### you have to list all volumes at the end
volumes:             ### at services level
  data-db:           ### multiple containers can use one volume
    driver: local

### docker volumes locations ###

C:\ProgramData\docker\volumes\    ### Win

/var/lib/docker/volumes/           ### Linux

/var/lib/docker/volumes/           ### OSX
### docker for mac creates linux VM
screen ~/Library/Containers/com.docker.docker/data/com.docker.docker.driver.amd64-linux/tty

### to get terminal of linuxVM on OSX ###

### Ctrl+a+k for exit ###