monoceros add-from-url

Registers an HTTPS install-script URL that is run via curl -fsSL <url> | sh on every container build - the escape hatch for tools with neither a devcontainer feature nor an apt package.

monoceros add-from-url <name> <url> [--yes]

Examples

monoceros add-from-url acme https://example.com/install.sh

Behavior

• Idempotent. Re-adding the same URL is a no-op.
• No confirmation prompt. The edit is written straight to the yml as soon as you run the command.
• Runs on every build. The script executes on each monoceros apply, not just once - make sure it is safe to re-run, and only add URLs you trust (the script runs with the container user’s privileges).

See also

• monoceros remove-from-url - the inverse.
• monoceros add-feature and monoceros add-apt-packages - the curated paths, preferred when they cover the tool.