docker.html

Installation
For RHEL: Docker requires a RHEL7 instance.

# Install the Docker package first: 
yum install docker

# Enable and start the docker service
sudo systemctl enable docker.service
sudo systemctl start docker.service

# Download a image to run:
sudo docker pull http://....
Running
sudo docker run --name=dockerrocks -i -t --rm=true --entrypoint=/bin/bash http://...

# To bind mount a directory on the host inside the container:
sudo docker run --name=devtest [--cap-add=SYS_PTRACE --security-opt seccomp=unconfined 
] -v /home/pushkar/mappedindocker:/app -i -t --rm=true --entrypoint=/bin/bash http://...

# In order for gdb to run normally by disabling ASLR pass these options when starting the container:
--cap-add=SYS_PTRACE --security-opt seccomp=unconfined 

Attaching to a running container:
Get the hashtag or names using ‘docker ps’
# This will attach to a docker instance and run the bash shell
sudo docker exec -t -i dockerrocks bash
Killing
# Just invoke the docker kill command with the name of the container you want to kill
sudo docker kill firstrhel7