Playing around with Podman

`1`	`alias docker="sudo podman $1"`

The above command works as of this time and podman makes namespaces for every users for every resources, i.e., images, containers and so on.

It means, podman images and sudo podman images will show different resources.😎

sudo podman pod create --name my-pod -p 8080:80
sudo podman run -d --restart=always --pod=my-pod --name my-nginx nginx
sudo podman run -d --restart=always --pod=my-pod --name my-curl curl
sudo podman generate kube my-pod > my-pod.yaml
sudo podman play kube ./my-pod.yaml

The generated file can not be used as raw. Below is an example of a manually edited version.

	apiVersion: v1
	kind: Pod
	metadata:
	labels:
	app: my-pod
	name: my-pod
	spec:
	containers:
	- image: docker.io/library/nginx:latest
	name: my-nginx
	ports:
	- containerPort: 80
	hostPort: 8080
	securityContext:
	allowPrivilegeEscalation: true
	privileged: false
	readOnlyRootFilesystem: false
	- image: docker.io/curlimages/curl:latest
	name: my-curl
	command: ["/bin/sh"]
	args: ["-c", "echo Hello from the sidecar container; sleep 300"]
	securityContext:
	allowPrivilegeEscalation: true
	privileged: false
	readOnlyRootFilesystem: false
	runAsGroup: 101
	runAsUser: 100
	restartPolicy: Always

view raw podman-play-kube-example.yaml hosted with ❤ by GitHub

Install Podman on CentOS 8

sudo dnf -y update
sudo dnf -y module disable container-tools
sudo dnf -y install 'dnf-command(copr)'
sudo dnf -y copr enable rhcontainerbot/container-selinux
sudo curl -L -o /etc/yum.repos.d/devel:kubic:libcontainers:stable.repo https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/CentOS_8/devel:kubic:libcontainers:stable.repo
sudo dnf -y install podman

Happy containerizing! 😎