CentOS Stream 10
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Docker : Install2025/08/07
 

Install Docker which is the Operating System-Level Virtualization Tool, which automates the deployment of applications inside Containers.

[1] Install Docker CE.
# remove conflict packages with Docker first

[root@dlp ~]#
dnf -y remove podman runc
[root@dlp ~]#
dnf config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
[root@dlp ~]#
sed -i -e "s/enabled=1/enabled=0/g" /etc/yum.repos.d/docker-ce.repo

[root@dlp ~]#
dnf --enablerepo=docker-ce-stable -y install docker-ce
[root@dlp ~]#
systemctl enable --now docker
[root@dlp ~]#
rpm -q docker-ce

docker-ce-28.3.3-1.el10.x86_64
[root@dlp ~]#
docker version 

Client: Docker Engine - Community
 Version:           28.3.3
 API version:       1.51
 Go version:        go1.24.5
 Git commit:        980b856
 Built:             Fri Jul 25 11:36:17 2025
 OS/Arch:           linux/amd64
 Context:           default

Server: Docker Engine - Community
 Engine:
  Version:          28.3.3
  API version:      1.51 (minimum version 1.24)
  Go version:       go1.24.5
  Git commit:       bea959c
  Built:            Fri Jul 25 11:33:31 2025
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.7.27
  GitCommit:        05044ec0a9a75232cad458027ca83437aae3f4da
 runc:
  Version:          1.2.5
  GitCommit:        v1.2.5-0-g59923ef
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0
[2] Download an official image and create a Container and output the words [Welcome to the Docker World] inside the Container.
# download the image

[root@dlp ~]#
docker pull quay.io/centos/centos:stream10 
stream10: Pulling from centos/centos
5e901762d568: Pull complete
Digest: sha256:6fc587a47e7d92c4ece5c735cb34bdbdce54907c71fea2f0cc55eddb35bb374d
Status: Downloaded newer image for quay.io/centos/centos:stream10
quay.io/centos/centos:stream10
# run echo inside Container

[root@dlp ~]#
docker run quay.io/centos/centos:stream10 /bin/echo "Welcome to the Docker World!"

Welcome to the Docker World!
[3] Connect to the interactive session of a Container with [i] and [t] option like follows.
If exit from the Container session, the process of a Container finishes.
[root@dlp ~]#
docker run -it quay.io/centos/centos:stream10 /bin/bash

[root@7173009cf9ca /]#    
# Container's console

[root@7173009cf9ca /]#
cat /etc/os-release 

NAME="CentOS Stream"
VERSION="10 (Coughlan)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="10"
PLATFORM_ID="platform:el10"
PRETTY_NAME="CentOS Stream 10 (Coughlan)"
ANSI_COLOR="0;31"
LOGO="fedora-logo-icon"
CPE_NAME="cpe:/o:centos:centos:10"
HOME_URL="https://centos.org/"
VENDOR_NAME="CentOS"
VENDOR_URL="https://centos.org/"
BUG_REPORT_URL="https://issues.redhat.com/"
REDHAT_SUPPORT_PRODUCT="Red Hat Enterprise Linux 10"
REDHAT_SUPPORT_PRODUCT_VERSION="CentOS Stream"
[root@7173009cf9ca /]#
exit

exit
[root@dlp ~]#    
# come back
[4] If exit from the Container session with keeping container's process, push [Ctrl+p] and [Ctrl+q] key.
[root@dlp ~]#
docker run -it quay.io/centos/centos:stream10 /bin/bash

[root@b8abdf33218c /]# [root@dlp ~]#    
# Ctrl+p, Ctrl+q
# show docker processes

[root@dlp ~]#
docker ps 

CONTAINER ID   IMAGE                            COMMAND       CREATED         STATUS         PORTS     NAMES
827a32452e96   quay.io/centos/centos:stream10   "/bin/bash"   7 seconds ago   Up 6 seconds             nostalgic_morse
# connect to container's session

[root@dlp ~]#
docker attach 827a32452e96

[root@827a32452e96 /]#
# shutdown container's process from Host's console

[root@dlp ~]#
docker kill 827a32452e96

827a32452e96
[root@dlp ~]#
docker ps 

CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES
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