podman.txt

# rootless daemonless private network container
# rootless podman enable autostart: loginctl enable-linger username
yum install podman slirp4netns;
echo "user.max_user_namespaces=28633" > /etc/sysctl.d/userns.conf;
sysctl -p /etc/sysctl.d/userns.conf;

podman login registry.redhat.io;
podman pull registry.access.redhat.com/ubi8/ubi-init:latest;
podman pull registry.access.redhat.com/ubi8/ubi:latest;
podman pull registry.access.redhat.com/ubi8/ubi-minimal:latest;
podman logout registry.redhat.io;

podman run -d --name test --hostname test --network host -p 2222:2222/tcp registry.access.redhat.com/ubi8/ubi-init:latest;
podman exec -it test /bin/bash;

podman run -ti --name test --hostname test -p 2222:2222/tcp registry.access.redhat.com/ubi8/ubi-init:latest /bin/bash;
podman run -ti --name test --hostname test --network host registry.access.redhat.com/ubi8/ubi-init:latest;
podman run --read-only --read-only-tmpfs=false --tmpfs /run -it --name test --hostname test -p 2222:2222/tcp localhost/local/test:latest /bin/bash;

podman pull fedora:latest; podman run -it fedora /bin/bash; 
podman pull centos:latest; podman run -it centos:latest /bin/bash;

# detach: ctrl+p ctrl+q | delete: podman rm -a  | list: podman container ls -a | connect: podman exec -it test /bin/bash
# build: touch Dockerfile; podman build -t test .; buildah bud -t local/test . ; podman run -d -p 80:80/tcp local/test;
# update: podman ps; podman commit d200659f91a0 local/test:latest; podman images;  podman containers;
# execute: podman exec -d --user root test /script.sh;
# start: @reboot /usr/bin/podman start test && /usr/bin/podman exec -d --user root test /script.sh;