— Install podman —
[root@localhost ~]# yum install podman slirp4netns
— To login to registry.redhat.io so that you can download container images —
— if you use registry.access.redhat.com instead, you don’t have to login —
[root@server01 ~]# podman login registry.redhat.io
— Download a container image —
[root@server01 ~]# podman pull registry.redhat.io/rhscl/httpd-24-rhel7
[root@localhost ~]# podman pull registry.access.redhat.com/rhscl/mariadb-102-rhel7
[root@localhost ~]# podman pull registry.access.redhat.com/rhscl/php-71-rhel7
— Start a container —
[root@server01 ~]# podman run -d -P registry.redhat.io/rhscl/httpd-24-rhel7
986c0bc25a6049530c17c53a04a393c8d8b1d53fa336e625a63bca877dc9f431
— List running containers —
[root@server01 ~]# podman ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
fb87ff77425d registry.redhat.io/rhscl/httpd-24-rhel7:latest /usr/bin/run-http... 4 minutes ago Up 4 minutes ago 0.0.0.0:46843->8080/tcp, 0.0.0.0:35687->8443/tcp hardcore_khayyam
— Start the bash shell in the given container —
[root@server01 ~]# podman exec -it fb87ff77425d bash
bash-4.2$ echo "hello from my container" > /var/www/html/index.html
bash-4.2$ exit
— Get the IP Address of a given container —
[root@server01 ~]# podman inspect -f "{{.NetworkSettings.IPAddress}}" fb87ff77425d
10.88.0.31
— List the ports allowed to pass through to the last used container (-l) —
— change the -l to -a to list for all running containers —
[root@server01 ~]# podman port -l
8080/tcp -> 0.0.0.0:46843
8443/tcp -> 0.0.0.0:35687
— List all container images on the local system —
[root@server01 ~]# podman images
REPOSITORY TAG IMAGE ID CREATED SIZE
registry.redhat.io/ubi8/ubi latest 0c46e5c7a82a 2 days ago 239 MB
registry.redhat.io/rhel8/nginx-114 latest 7b386b0cb891 5 weeks ago 407 MB
registry.redhat.io/rhel8/rsyslog latest 291836dcc008 5 weeks ago 259 MB
registry.redhat.io/rhscl/httpd-24-rhel7 latest 54a9312811c3 5 weeks ago 329 MB
registry.redhat.io/rhel7 latest 2ef6ad3f3825 5 weeks ago 215 MB
— Stop a given container —
[root@server01 ~]# podman stop a2ecc1f73aff
— A sample of a more complex run command —
[root@server01 ~]# podman run --ip 10.xx.xx.xx -p 3306:3306 --name mariadb-service -v /opt/var/lib/mysql/data:/var/lib/mysql/data:Z -e MYSQL_USER=wordpress -e MYSQL_PASSWORD=mysecret -e MYSQL_DATABASE=wordpress registry.access.redhat.com/rhscl/mariadb-102-rhel7
— Inspect a container image for various information —
[root@localhost ~]# podman inspect registry.access.redhat.com/rhscl/mariadb-102-rhel7 | grep User
[root@localhost ~]# podman inspect registry.access.redhat.com/rhscl/mariadb-102-rhel7 | grep -A1 Volume
[root@localhost ~]# podman inspect registry.access.redhat.com/rhscl/mariadb-102-rhel7 | grep -A1 ExposedPorts
— Reference URLS —
https://developers.redhat.com/blog/2018/11/29/managing-containerized-system-services-with-podman/
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/building_running_and_managing_containers/index