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Docker Cheat Sheet

Resources

Docker

docker's ip

 docker ip

Show docker containers

running containers

docker ps

last run container

docker ps -l

all containers

docker ps -a

search for container images

docker search <keyword>

run containers

run docker container

docker run <image> <command>

example:

docker run ubuntu /bin/echo 'Hello World'

run container interactively

docker run -it <image>

example:

docker run -it ubuntu /bin/echo 'Hello World'

run and remove container

docker run --rm -it <image>

run container as deamon

docker run -d <image>

example:

docker run -d ubuntu:14.04 /bin/sh -c "while true; do echo hello world; sleep 1; done"

docker run -d -p 80:80 nginx

run container and port mapping

docker run -it -p <ext port>:<internal port> <image>

example

docker run -it -p 80:80 nginx

run container and map volume

docker run -it -v <host dir>:<container dir> <image>

example

docker run -it -v ~/devl/tmp/:/data kalilinux/kali-linux-docker bash

stop container

docker stop <container>

remove container

docker rm <container>

remove all stopped containers

docker rm $(docker ps -a -q)

stop and remove container

docker rm -f <container>

connect to existing container

connect to existing container with command-line access

docker exec -it <container> bash

connect to existing container with root access

docker exec -it --user root <container> bash

run commandd in container

docker exec -it <container> <command>

access logs

access container logs

docker logs <container>

tail container logs

docker logs -f <container>

display container port mappings

docker port <container>

get/pull image

docker pull <username>/<repository>:<tag>

push image

docker push <username>/<repository>:<tag>

view/inspect details in json

docker inspect <container>

list local images

docker images

remove local images

docker rmi <image>

remove all dangling images

docker rmi $(docker images -q -f dangling=true)

view image layers

docker history image

list process running in container

docker top <container>

build a Dockerfile

docker build -t <image name> .

Samve running container as image

docker commit -m "<message>" -a "<author>" <container> <username>/<repository>:<tag>

backup container

export container

docker export <container> > <filename>.tar

import container

docker import <filename.tar> <image name>

backup images

save image

docker save <image>

load image

docker load  < <filename.tar>

time drift

docker-machine ssh default 'sudo ntpclient -s -h pool.ntp.org'

Networking

List networks

docker network ls

Create network

docker network create <network name>

Connect to existing network

docker network connect <network name> <container name>

Run container in a network

docker run --network <network name> <image> <command>

Volumes

List volumes

docker volume ls

Find dangling Volumes

docker volume ls -qf dangling=true

Remove volumes

docker volume rm <volume id>

Examples

Java Examples

Java Shell (Java 9)

docker run -it java:9 jshell

Java 8

docker run -it --rm dockerfile/java:oracle-java8 java -version

jcurl

docker run -it --rm javajudd/jcurl java -Djavax.net.debug=all -jar jcurl.jar https://www.grc.com

memcached

docker run --name memcache -p 11211:11211 -d memcached

mysql

docker run --name <name> -e MYSQL_ROOT_PASSWORD=root+1 -e MYSQL_DATABASE=<db> -e MYSQL_USER=<user> -e MYSQL_PASSWORD=<password> -p 3306:3306 -d mysql:latest

docker run --name mysql -e MYSQL_ROOT_PASSWORD=root+1 -p 3306:3306 -d mysql:5.5.44

Ultimate Enterprise Java Build System

Jenkins - https://hub.docker.com/_/jenkins/

docker run -d -p 8080:8080 -p 50000:50000 --name jenkins -v /var/jenkins_home jenkins/jenkins:lts

Nexus - https://hub.docker.com/r/sonatype/nexus/

docker run -d -p 8081:8081 --name nexus -v /sonatype-work sonatype/nexus

Postgres - https://hub.docker.com/_/postgres/

docker run -d --name sonar-postgres -v /var/lib/postgresql/data -e POSTGRES_USER=sonar -e POSTGRES_PASSWORD=sonar -e POSTGRES_DB=sonar postgres

Sonarqube - https://hub.docker.com/_/sonarqube/

docker run -d --name sonarqube \
    -v /opt/sonarqube \
    --link sonar-postgres:db \
    -p 9000:9000 -p 9092:9092 \
    -e SONARQUBE_JDBC_USERNAME=sonar \
    -e SONARQUBE_JDBC_PASSWORD=sonar \
    -e SONARQUBE_JDBC_URL=jdbc:postgresql://db/sonar \
    sonarqube

create files/pdfs

docker run -it --rm  -v $(pwd):/work mnuessler/pdftk $(for i in $(seq 1 40); do echo -n "1_MB.pdf "; done) cat output 40.pdf

portero

docker run -p 9000:9000 -d --name portero javajudd/portero

iis

docker run -d -p 8000:8000 --name my-site microsoft/iis

wordyninablog

docker run --name wordyninjadb -e MYSQL_ROOT_PASSWORD=root+1 -e MYSQL_DATABASE=wordyninjadb -e MYSQL_USER=wordyninja -e MYSQL_PASSWORD=password+1 -p 3306:3306 -d mysql:latest

mailtrap

https://hub.docker.com/r/eaudeweb/mailtrap/

docker run -d --name=mailtrap -p 80:80 eaudeweb/mailtrap

Docker Machine

create

create local docker machine

docker-machine create -d virtualbox <machine_name>

create AWS docker machine

docker-machine -D create \
    --driver amazonec2 \
    --amazonec2-access-key <aws-access-key> \
    --amazonec2-secret-key <aws-secret-key> \
    --amazonec2-region <aws-region> \
    --amazonec2-vpc-id <aws-vpc> \
    --amazonec2-zone <aws-zone> \
    <machine-name>

create DigitalOcean docker machine

docker-machine create --driver digitalocean --digitalocean-access-token <digitalocean-token> <machine-name>

remove docker machine

docker-machine rm <machine-name>

list docker machines

docker-machine ls

switch machines

docker-machine env <machine-name>
eval "$(docker-machine env <machine-name>)"

port forwarding

enabled port forwarding

VBoxManage controlvm "<docker-machine name>" natpf1 "<descriptive name of port>,tcp,,<host port>,,<guest port>"

example

VBoxManage controlvm "iq" natpf1 "iq-tcp-port,tcp,,9090,,9090"

disable port forwarding

VBoxManage controlvm "<docker-machine name>" natpf1 delete "<descriptive name of port>"

example

VBoxManage controlvm "iq" natpf1 delete "iq-tcp-port"