sredient

Docker Volume and Network Docker Volume Docker volume is simply a directory inside container or a persistence storage volume in container. Volume will be create, when you create a container.We can share a volume with other container also.Volume can be mapped/share in two ways Container to Container Host to Container Docker Network Docker Network is used establish communication between containers and host machine.Docker network can be created automatically and manually.Docker contains mainly three types of network. Bridge – default network Host – can be created or for standalone container Null – null or none can be used for not to provide communication to container Docker Volume Commands To List a Volumes $ sudo docker volume ls To Create a Volume $ sudo docker volume create <volume-name> To get Information about Volume $ sudo docker volume inspect <volume-name> Example:- To Mount Volume to a Container $ sudo docker run –mount source=[volume_name],destination=[path_in_container] [docker_image_name] To Run a Container and mount a volume then use this command $ sudo docker run -it –name=sredient –mount source=<volume-name>,destination=/<volume-name> <image-name> Example:- To Share volume from Host to container $ sudo docker run -it –name=sredient –mount source=<volume-name or volume-path>,destination=/<volume-name> <image-name> To Remove Volumes $ sudo docker rm <volume-name> To Remove all Unused volumes $ sudo docker prune Docker Network Commands To List a networks $ sudo docker network ls To know more opetions $ sudo docker network –help To connect a container to a network $ sudo docker connect <network-id/name> <container-id> To disconnect from a network $ sudo docker disconnect <network-id/name> <container-id> To create a network $ sudo docker network create -d <network-type> <network name> To know more about Create Command $ sudo docker network create –help To remove Network $ sudo docker network rm

Docker Containers and Images Docker Containers What is a Container? Container is like a virtual machine which holds the entire packages that is needed to run the application. Containers are more portable and lightweight. What is Image in docker? Docker images are the read only binary templates used to create docker containers. Images become containers when they run on docker engine. Basic information about Container and Image Container ID:- 579c25a52e88Image:- UbuntuImage Name:- upbeat_panini Remember above information, It will help you to know, how the Container Id, Image type and Image name look likes. Basic commands for Docker Containers To list running containers $ sudo docker container psor$ sudo docker container ls To List all containers $ sudo docker container ps -aor $ sudo docker ps -a To start docker container $ sudo docker start <container-id> To Stop docker container $ sudo docker stop <container-id> To check containers Logs $ sudo docker logs -f <container-id> To go inside container $ sudo docker attach <container-id> To Remove a stopped container $ sudo docker rm <container-id> To Remove a running container $ sudo docker rm -f <container-id> To Remove all Stopped containers $ sudo docker rm $(docker ps -q -f “status=exited”) To Remove all Running containers $ sudo docker rm -f $(docker ps -aq) Basic commands for Docker Images To list Docker Images $ sudo docker images lsor $ sudo docker images ps To find images in Docker hub $ sudo docker search <image-name> To download the Docker images from Docker hub $ sudo docker pull <image-name> To build a Image from Dockerfile $ sudo docker build -t <image-name>:<tag-name> . To check the history of Image $ sudo docker history <image-name> To Export Docker Image $ sudo docker (image-name) >(filename).rar To Import Docker Images $ sudo docker <filename.rar> <image-name> To Push docker image in Docker hub $ sudo docker push <registory-name>/<username>/<image-name> To Remove docker Images $ sudo docker rmi <image-name> To Remove docker images forcefully $ sudo docker rmi -f <image-name> To Remove all docker images $ docker rmi $(docker images -q)

Getting started with docker Docker Installation in Ubuntu Linux For the following Ubuntu Versions Ubuntu Jammy 22.04 (LTS) Ubuntu Impish 21.10 Ubuntu Focal 20.04 (LTS) Ubuntu Bionic 18.04 (LTS) If you have Older Docker version or already installed and went remove, then run the below commands Docker Remove Commands $ sudo apt-get remove docker docker-engine docker.io containerd runc $ sudo rm -rf /var/lib/docker /etc/docker$ sudo rm /etc/apparmor.d/docker$ sudo groupdel docker$ sudo rm -rf /var/run/docker.sock above commands will remove docker completely from your system Now let’s start installation of docker First update your system $ sudo apt-get update Run below command to install packages to allow apt to use a repository over HTTPS: Add docker repositories in your ubuntu system $ sudo apt-get install \ ca-certificates \ curl \ gnupg \ lsb-release Now add docker official GPG key’s in your ubuntu system for this create separate directory for docker $ sudo mkdir -p /etc/apt/keyrings $ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg –dearmor -o /etc/apt/keyrings/docker.gpg Now add the Docker Repository to APT sources list $ echo \ “deb [arch=$(dpkg –print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \$(lsb_release -cs) stable” | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null Install Docker Engine $ sudo apt-get update $ sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin Now docker is installed, check the docker status $ sudo systemctl status docker