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Table of Contents
- Installation
- Docker Registries & Repositories
- Running Containers
- Starting & Stopping Containers
- Getting Information about Containers
- Networking
- Cleaning Docker
- Docker Swarm
- Notes
Installation
Linux
For more information, see here
curl -sSL https://get.docker.com/ | sh
Mac
For more information, see here
Use this link to download the dmg.
https://download.docker.com/mac/stable/Docker.dmg
Windows
For more information, see here
Use the msi installer:
https://download.docker.com/win/stable/InstallDocker.msi
Docker Registries & Repositories
Login to a Registry
docker login
docker login localhost:8080
Logout from a Registry.
docker logout
docker logout localhost:8080
Searching an Image
docker search nginx
docker search --filter stars=3 --no-trunc nginx
Pulling an Image
docker image pull nginx
docker image pull eon01/nginx localhost:5000/myadmin/nginx
Pushing an Image
docker image push eon01/nginx
docker image push eon01/nginx localhost:5000/myadmin/nginx
Running Containers
Create and Run a Simple Container
- Start an ubuntu:latest image
- Bind the port
80from the CONTAINER to port3000on the HOST- Mount the current directory to
/dataon the CONTAINER- Note: on windows you have to change
-v ${PWD}:/datato-v "C:\Data":/data
docker container run --name infinite -it -p 3000:80 -v ${PWD}:/data ubuntu:latest
Creating a Container
docker container create -t -i eon01/infinite --name infinite
Running a Container
docker container run -it --name infinite -d eon01/infinite
Renaming a Container
docker container rename infinite infinity
Removing a Container
docker container rm infinite
Updating a Container
docker container update --cpu-shares 512 -m 300M infinite
Starting & Stopping Containers
Starting
docker container start nginx
Stopping
docker container stop nginx
Restarting
docker container restart nginx
Pausing
docker container pause nginx
Unpausing
docker container unpause nginx
Blocking a Container
docker container wait nginx
Sending a SIGKILL
docker container kill nginx
Sending another signal
docker container kill -s HUP nginx
Connecting to an Existing Container
docker container attach nginx
Getting Information about Containers
Running Containers
docker container ls
docker container ls -a
Container Logs
docker logs infinite
Follow Container Logs
docker container logs infinite -f
Inspecting Containers
docker container inspect infinite
docker container inspect --format '{{ .NetworkSettings.IPAddress }}' $(docker ps -q)
Containers Events
docker system events infinite
Public Ports
docker container port infinite
Running Processes
docker container top infinite
Container Resource Usage
docker container stats infinite
Inspecting changes to files or directories on a container’s filesystem
docker container diff infinite
Manipulating Images
Listing Images
docker image ls
Building Images
docker build .
docker build github.com/creack/docker-firefox
docker build - < Dockerfile
docker build - < context.tar.gz
docker build -t eon/infinite .
docker build -f myOtherDockerfile .
curl example.com/remote/Dockerfile | docker build -f - .
Removing an Image
docker image rm nginx
Loading a Tarred Repository from a File or the Standard Input Stream
docker image load < ubuntu.tar.gz
docker image load --input ubuntu.tar
Save an Image to a Tar Archive
docker image save busybox > ubuntu.tar
Showing the History of an Image
docker image history
Creating an Image From a Container
docker container commit nginx
Tagging an Image
docker image tag nginx eon01/nginx
Pushing an Image
docker image push eon01/nginx
Networking
Creating Networks
docker network create -d overlay MyOverlayNetwork
docker network create -d bridge MyBridgeNetwork
docker network create -d overlay \
--subnet=192.168.0.0/16 \
--subnet=192.170.0.0/16 \
--gateway=192.168.0.100 \
--gateway=192.170.0.100 \
--ip-range=192.168.1.0/24 \
--aux-address="my-router=192.168.1.5" --aux-address="my-switch=192.168.1.6" \
--aux-address="my-printer=192.170.1.5" --aux-address="my-nas=192.170.1.6" \
MyOverlayNetwork
Removing a Network
docker network rm MyOverlayNetwork
Listing Networks
docker network ls
Getting Information About a Network
docker network inspect MyOverlayNetwork
Connecting a Running Container to a Network
docker network connect MyOverlayNetwork nginx
Connecting a Container to a Network When it Starts
docker container run -it -d --network=MyOverlayNetwork nginx
Disconnecting a Container from a Network
docker network disconnect MyOverlayNetwork nginx
Exposing Ports
Using Dockerfile, you can expose a port on the container using:
EXPOSE <port_number>
You can also map the container port to a host port using:
e.g.
docker run -p $HOST_PORT:$CONTAINER_PORT --name infinite -t infinite
Cleaning Docker
Removing a Running Container
docker container rm nginx
Removing a Container and its Volume
docker container rm -v nginx
Removing all Exited Containers
docker container rm $(docker container ls -a -f status=exited -q)
Removing All Stopped Containers
docker container rm `docker container ls -a -q`
Removing a Docker Image
docker image rm nginx
Removing Dangling Images
docker image rm $(docker image ls -f dangling=true -q)
Removing all Images
docker image rm $(docker image ls -a -q)
Removing all untagged images
docker image rm -f $(docker image ls | grep "^<none>" | awk "{print $3}")
Stopping & Removing all Containers
docker container stop $(docker container ls -a -q) && docker container rm $(docker container ls -a -q)
Removing Dangling Volumes
docker volume rm $(docker volume ls -f dangling=true -q)
Removing all unused (containers, images, networks and volumes)
docker system prune -f
Clean all
docker system prune -a
Docker Swarm
Installing Docker Swarm
curl -ssl https://get.docker.com | bash
Initializing the Swarm
docker swarm init --advertise-addr 192.168.10.1
Getting a Worker to Join the Swarm
docker swarm join-token worker
Getting a Manager to Join the Swarm
docker swarm join-token manager
Listing Services
docker service ls
Listing nodes
docker node ls
Creating a Service
docker service create --name vote -p 8080:80 instavote/vote
Listing Swarm Tasks
docker service ps
Scaling a Service
docker service scale vote=3
Updating a Service
docker service update --image instavote/vote:movies vote
docker service update --force --update-parallelism 1 --update-delay 30s nginx
docker service update --update-parallelism 5--update-delay 2s --image instavote/vote:indent vote
docker service update --limit-cpu 2 nginx
docker service update --replicas=5 nginx
Notes
This work was first published in Painless Docker Course
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