Managing Containers

Estimated time to read: 2 minutes

Introduction:

Docker provides the ability to package and run an application in an isolated environment called a container. Container management is a process for automating the creation, deployment and scaling of containers.

Container management facilitates the addition, replacement and organization of containers on a large scale

Lets list the container if any container is running
```
docker container ls -a
```
Create a nginx container
```
 docker container create nginx
```

create a container and name it as ofl01

docker container create --name ofl01 nginx

Start the container which is created
```
docker container start ofl01
```

Create a new container using run option

docker container run --name server01 centos

Create a new container by supplying (-i and -t) option to get interactive terminal, by executing the below command, Note: “-i” stands for interactive & “-t” stands for terminal. So we are requesting an interactive terminal for a container.
```
docker container run --name server02 -i -t centos
```
Note: The container is created and interactive terminal is displayed. You can run commands inside the container and exit out.
Create a new container with detached interactive terminal (-d -i -t) option, by executing the below command. Note: d stand detached mode.
```
docker container run --name server03 -dit centos
```
Attach the container server03
```
docker container attach server03
```
Run a command inside the container without attaching to the container by using exec option.
```
docker container exec server03 cat /etc/resolv.conf
```

Rename the existing container

docker container rename server03 server003

Pause the existing container
```
docker container pause server003
```
Unpause the existing container
```
docker container unpause server003
```
Stop the existing container
```
docker container stop server003
```
Start the existing container
```
docker container start server003
```
Restart the existing container
```
docker container restart server003
```
Kill the container
```
docker container kill server003
```