apptainer(1)

💅 apptainer(1) — apptainer oci update, bestie edition 💅

okay so welcome to the apptainer(1) corner of the manual, specifically the apptainer oci update page. It’s giving root-user-only energy, so grab your root powers if you’re the target audience 🔥.

🫶 NAME 🫶

• apptainer-oci-update — Update container cgroups resources (root user only). No cap, root only 💅.

✨ SYNOPSIS ✨

apptainer oci update [update options...]

🦋 DESCRIPTION 🦋

Update will update cgroups resources for the specified container ID. That’s the main character move 🎀.

Container must be in a RUNNING or CREATED state — that’s the whole state vibe check 💀.

🎀 OPTIONS 🎀

• -f, --from-file="" — specify path to OCI JSON cgroups resource file ('-' to read from STDIN). The '-' is iconic for stdin, iykyk 🌈.
• -h, --help[=false] — help for update. That [=false] is literally part of the flag, don’t come for me 💀.

🌸 EXAMPLE 🌸

Try it like this, it’s giving file-based update realness ✨:

         $ apptainer oci update --from-file /tmp/cgroups-update.json mycontainer

         or to update from stdin :

         $ cat /tmp/cgroups-update.json | apptainer oci update --from-file - mycontainer

🧚 SEE ALSO 🧚

• apptainer-oci(1) — the related page, go peek 🦋.

👑 HISTORY 👑

• 22-Oct-2026 — Auto generated by spf13/cobra. The robots ate this one, fr fr 🤖✨.

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Auto generated by spf13/cobra · Oct 2026 · apptainer(1) — mwah, bye bestie, go update those cgroups 💅🫶