how-to-docker.md

Installation

• Docker Install on Linux ;
• Docker Compose.

sudo apt-key adv \
    --keyserver hkp://p80.pool.sks-keyservers.net:80 \
    --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
echo "deb https://apt.dockerproject.org/repo ubuntu-xenial main" \
    | sudo tee -a /etc/apt/sources.list.d/docker.list
sudo apt-get purge lxc-docker
sudo apt-get update && sudo apt-get install --yes \
    apt-transport-https \
    ca-certificates \
    docker-engine \
    linux-image-extra-"$(uname -r)" \
    linux-image-extra-virtual
sudo apt-get autoremove
sudo usermod -aG docker coaxis
sudo wget \
    --output-document=/usr/local/bin/docker-compose \
    https://github.com/docker/compose/releases/download/1.8.0/docker-compose-"$(uname -s)"-"$(uname -m)" 
sudo chmod +x /usr/local/bin/docker-compose
docker-compose --version

Usage

Entering in a docker

You can enter in a docker container to explore it live:

docker exec -it coaxisopt_daemon bash

Where coaxisopt_daemon is the name of the container (see docker ps -a)

Reading the logs

We can use the above method to watch apache logs:

docker exec -it coaxisopt_daemon bash -c 'tail -f /var/log/apache2/*'