podman

Podman is a daemonless container engine for developing, managing, and running OCI Containers on your Linux System. Containers can either be run as root or in rootless mode.

Podman relies on an OCI compliant Container Runtime (runc, crun, runv, etc) to interface with the operating system and create the running containers.

There is a RESTFul API to manage containers. We also have a remote Podman client that can interact with the RESTFul service.

Debian install

   1 sudo apt -y install podman
   2 podman info
   3 
   4 podman info
   5 mkdir -p ~/.config/containers/
   6 touch $HOME/.config/containers/registries.conf 
   7 echo "unqualified-search-registries = ['registry.fedoraproject.org', 'registry.access.redhat.com', 'registry.centos.org', 'docker.io']" >  $HOME/.config/containers/registries.conf 
   8 cat $HOME/.config/containers/registries.conf 
   9 podman search alpine

Run Alpine

Containerfile

   1 FROM alpine:3.16
   2 RUN apk add --update --no-cache python3 curl wget nano vim py3-pip
   3 CMD ["cat"]

Steps

   1 podman build -t alpine-image  .
   2 #select docker.io/library/alpine:3.16
   3 podman run -p 8081:8081 -d -it --rm --name alpine-container --mount type=bind,source="$(pwd)",target=/app alpine-image
   4 podman ps
   5 podman exec -it env-docker-alpine-container sh
   6 cat /etc/os-release
   7 exit