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Docker

Basics

docker run <SOME-CONAINER>
docker search <IDK, i.e. wpscan>

start ubuntu docker run ubuntu:latest echo "Welcome to Ubuntu" ubuntu w/ interactive bash shell docker run --name samplecontainer -it ubuntu:latest /bin/bash

List running containers :

docker ps
docker ps  -a ## for all, stopped/running/etc

Stop/remove a container:

docker kill d4
docker rm d4

# workflow:
docker run --name dummynginx -d nginx:alpine
docker ps (to identify it)
docker stop dummynginx
docker rm dummynginx

Stop/remove an image

docker images
docker rmi d4

Detached mode

  • run alpine in bg docker run --name pingcontainer -d alpine:latest ping 127.0.0.1 -c 50 Looking at the logs (stdout) of a container docker logs -f pingcontainer

Running nginx container and access the service

docker run -d --name nginxalpine -p 7777:80 nginx:alpine now you can access via curl localhost:7777

Accessing the container service using the container IP and container port

docker exec -it nginxalpine sh
ip addr
curl 172.17.0.2:80

Inspect container/image

Returns low-level information on Docker objects

docker inspect <container name>
docker inspect <image name>
docker inspect nginx:alpine

docker history jess/htop

Docker-Compose

Compose is a tool for defining and running multi-container Docker applications, i.e. wordpress.

cd /opt/wordpress
docker-compose up -d

list volumes/networks

docker volume ls
docker network ls

Portainer

web interface for managing docker hosts and swarm clusters

docker run -d -p 9000:9000 --name portainer \
    --restart always -v /var/run/docker.sock:/var/run/docker.sock \
    -v /opt/portainer:/data portainer/portainer

Now you can access portianer at http://STUDENTVMIP:9000

List port forwarded for an image:

docker port d4

Run a container:

docker run -it <image name> <command>

MySQL for dev in a container:

docker run -d --name mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=root -v PATH:/var/lib/mysql mysql

Mongo for dev in a container:

docker run -d -p 27017:27017 --name mongodb mongo -v PATH:/data/db