General Docker Information

==================================================================================== 
 To preface this page; I personally recommend trying out Portainer , which is essentially a web GUI for Docker - it's great. Portainer even lives in a docker container itself. 
 Regarding images and container management; the contents of this page are great if you're working with a small number of containers that are being installed/setup as a one-off then this is all fine, however, if you're launching containers for applications that need to be updated, changed/customised etc then you're probably best off taking a look at the Docker Compose page. 
 ==================================================================================== 
 Installation 
 Install Docker CE (Community Edition) 
 apt install docker.io 
 ==================================================================================== 
 Commands & Usage 
 ------------------------------------------------------------------- ------------------------------------------------------------------- ---------- 
 Managing Containers 
 List Docker processes/containers (running and stopped) 
 docker ps -a 
 Start a container 
 docker start containername 
 stop a container 
 docker stop containername 
 Delete a container 
 docker rm containername 
 Check container performance metrics 
 docker stats containername 
 ------------------------------------------------------------------- ------------------------------------------------------------------- ---------- 
 Adding new docker images 
 Docker has their own 'marketplace' of sorts for docker images: 
 https://hub.docker.com/   
 To install a new docker image 
 docker pull container-name 
 List installed Docker images 
 docker images 
 Search locally installed images, and search Docker repository for available images 
 docker search name 
 ------------------------------------------------------------------- ------------------------------------------------------------------- ---------- 
 Launching Containers 
 ==================================================================================== 
 Basic launch for a container based on an image 
 docker run --name containername -it imagename 
 There are lots and lots of options available for the docker run command : 
 Starting an instance with this method will push your shell into the container itself. To exit the container (continues running): 
 ctrl+p ctrl+x 
 To connect to a docker image: 
 docker attach containername 
 To connect to a docker image CLI: 
 docker exec -it containername bash 
 ==================================================================================== 
 
 ====================================================================================