Docker

## List Docker CLI commands
docker
docker container --help

## Display Docker version and info
docker --version
docker version
docker info

## Excecute Docker image
docker run hello-world

## List Docker images
docker image ls

## List Docker containers (running, all, all in quiet mode)
docker container ls
docker container ls -all
docker container ls -a -q

docker container run --interactive --tty --rm ubuntu bash

## -- detach will run the container in the background.
## --name will name it mydb.
## -e will use an environment variable to specify the root password
docker container run \
--detach \
--name will name it mydb.
--name mydb \
-e MYSQL_ROOT_PASSWORD=my-secret-pw \
mysql:latest

## logs from the MySQL Docker container.
docker container logs mydb

## processes running inside the container.
docker container top mydb

## Log in to the Docker public registry on your local machine.
docker login
## example docker tag friendlyhello john/get-started:part2
docker tag image username/repository:tag
##Upload your tagged image to the repository
docker push username/repository:tag

## If the image isn’t available locally on the machine, Docker pulls it from the repository.
docker run -p 4000:80 username/repository:tag

docker stack ls                                            # List stacks or apps
docker stack deploy -c <composefile> <appname>  # Run the specified Compose file
docker service ls                 # List running services associated with an app
docker service ps <service>                  # List tasks associated with an app
docker inspect <task or container>                   # Inspect task or container
docker container ls -q                                      # List container IDs
docker stack rm <appname>                             # Tear down an application
docker swarm leave --force      # Take down a single node swarm from the manager

# init swarm
docker swarm init --advertise-addr 172.17.0.1
# leave swarm
docker swarm leave --force

#create a couple of VMs using docker-machine, using the VirtualBox driver:
docker-machine create --driver virtualbox myvm1
docker-machine create --driver virtualbox myvm2
# list the machines and get their IP addresses.
docker-machine ls

# Instruct myvm1 to become a swarm manager with
#myvm1   -        virtualbox   Running   tcp://192.168.99.100:2376
docker-machine ssh myvm1 "docker swarm init --advertise-addr 192.168.99.100"

# To add a worker to this swarm
# Always run docker swarm init and docker swarm join with port 2377 or no port
# at all and let it take default
docker swarm join --token <token> <myvm ip>:<port>

# Send command to myvm2 via docker-machine ssh to have myvm2 join your new swarm as # a worker
docker-machine ssh myvm2 "docker swarm join \
--token <token> \
<ip>:2377"

#Run docker node ls on the manager to view the nodes in this swarm:
docker-machine ssh myvm1 "docker node ls"

#Leaving a swarm
# to start over, you can run docker swarm leave from each node.
docker-machine ssh myvm2 "docker swarm leave"

# start a machine
docker-machine start <machine-name>

# configures your current shell to talk to the Docker daemon on the VM
# allows you to use your local docker-compose.yml file to deploy the app “remotely”
# without having to copy it anywhere.
docker-machine env <machine>

# configure your shell to talk to myvm1.
eval $(docker-machine env myvm1)

# unset
eval $(docker-machine env -u)

# docker-machine ls to verify that myvm1 is now the active machine
docker-machine ls

docker-machine create --driver virtualbox myvm1 # Create a VM (Mac, Win7, Linux)
docker-machine create -d hyperv --hyperv-virtual-switch "myswitch" myvm1 # Win10
docker-machine env myvm1                # View basic information about your node
docker-machine ssh myvm1 "docker node ls"         # List the nodes in your swarm
docker-machine ssh myvm1 "docker node inspect <node ID>"        # Inspect a node
docker-machine ssh myvm1 "docker swarm join-token -q worker"   # View join token
docker-machine ssh myvm1   # Open an SSH session with the VM; type "exit" to end
docker node ls                # View nodes in swarm (while logged on to manager)
docker-machine ssh myvm2 "docker swarm leave"  # Make the worker leave the swarm
docker-machine ssh myvm1 "docker swarm leave -f" # Make master leave, kill swarm
docker-machine ls # list VMs, asterisk shows which VM this shell is talking to
docker-machine start myvm1            # Start a VM that is currently not running
docker-machine env myvm1      # show environment variables and command for myvm1
eval $(docker-machine env myvm1)         # Mac command to connect shell to myvm1
& "C:\Program Files\Docker\Docker\Resources\bin\docker-machine.exe" env myvm1 | Invoke-Expression   # Windows command to connect shell to myvm1
docker stack deploy -c <file> <app>  # Deploy an app; command shell must be set to talk to manager (myvm1), uses local Compose file
docker-machine scp docker-compose.yml myvm1:~ # Copy file to node's home dir (only required if you use ssh to connect to manager and deploy the app)
docker-machine ssh myvm1 "docker stack deploy -c <file> <app>"   # Deploy an app using ssh (you must have first copied the Compose file to myvm1)
eval $(docker-machine env -u)     # Disconnect shell from VMs, use native docker
docker-machine stop $(docker-machine ls -q)               # Stop all running VMs
docker-machine rm $(docker-machine ls -q) # Delete all VMs and their disk images