Docker- Docker implementation

Installation

sudo apt install docker.io docker --version

Enabling docker

• sudo systemctl status docker /n
• sudo systemctl enable --now docker /n
• sudo docker run hello-world
• sudo docker images

Creating a docker container

• docker run -it --name cont1 -v /dev/video0:/dev/video0 -v volume1 --privileged=true 29111997/gstream:latest /bin/bash
• docker run -it --name cont2 --volumes-from volume1 --privileged=true 29111997/gstream:latest /bin/bash

Enter the container

• docker start cont1
• docker attach cont1 OR
• docker exec -it cont1 bash

Check the containers

• docker container inspect cont1

Remove containers

• docker kill cont1
• docker rm cont1

Remove all unused containers

• docker container prune

Creating a network

• docker network create mynet

Connecting containers through the network

• docker network connect mynet cont1
• docker network connect mynet cont2

Checking the network

• docker network inspect mynet

Creating a dockerfile for gstreamer from docker hub

FROM ubuntu:latest RUN apt update -y ARG DEBIAN_FRONTEND=noninteractive RUN apt install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev libgstreamer-plugins-bad1.0-dev gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-doc gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio -y

Build image from dockerfile

• docker build image -t .

Important links-

• https://github.com/mjhowell/gst-zeromq
• https://stackoverflow.com/questions/45772053/zeromq-failing-to-communicate-between-two-docker-containers
• https://www.tutorialworks.com/container-networking/
• https://github.com/rancavil/slurm-cluster/blob/devel/jupyter/Dockerfile
• https://www.digitalocean.com/community/questions/how-to-ping-docker-container-from-another-container-by-name