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Upgrading to Podman 6: what breaks and how to check your host first

Podman 6 removed cgroups v1, CNI, iptables, slirp4netns and BoltDB. I tested Podman 6.1.3 against state created by 4.9.4 and 5.8.7: BoltDB migrates by itself, but a CNI network silently disappears and a slirp4netns container will not start. A 38-line script detects each case before you upgrade.

13 min 24
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Podman: Containers Without a Daemon or Root

Podman is the Docker alternative with no central daemon and no root privileges required. Each container runs as a direct child process of the launching user, with rootless support since version 1.0 in 2019. If a container escapes, it does not gain host root. When Podman makes sense and what real differences to expect.

6 min 269 4.3