v0.1.100

Fixed

• A network name too long for the kernel is now refused before any work, and
  named (issue #214). The Linux kernel rejects an interface name longer than 15
  characters (IFNAMSIZ is 16, terminator included). The packaged kvm template
  computes the bridge name as virbr- + the network name with every lab-
  removed, so network: lab-kubernetes yields virbr-kubernetes — sixteen
  characters. Terraform failed with:

  Error: Network Start Failed
  Network defined but failed to start: error creating bridge interface
  virbr-kubernetes: Numerical result out of range
  

  That message names neither the bridge, nor the limit, nor the field that
  produced it — and the offending name appears nowhere in meta.yml, since
  it is derived. Worse, the failure landed after the base image had been
  downloaded, so every attempt cost a minute.

  provision now refuses before terraform init, so before downloading a
  provider or an image, exits 2 (IMPOSSIBLE), names the computed bridge with
  its length, and states the length the network name must fit in. doctor reports
  the same check, in the required table, as soon as the repository declares hosts
  with a local provider — a check that probes nothing and only counts characters,
  so it always has an answer.

  The two derivation rules now live in Python, in infra/pont.py, where a check
  can read them: kvm computes the name, incus uses the network name verbatim
  (so the limit applies with no lab- margin), and outscale creates no
  interface on this machine. A declared bridge_name override wins, exactly as
  the template reads it — otherwise the check would refuse a catalog that had
  already worked around the problem.

  A test confronts the Python rule with the HCL expression actually written in
  the template. Two definitions of "what the bridge is called" would drift, and
  the drift would stay invisible until the next long-named catalog. That test is
  also what caught a wrong assumption of mine: HCL's replace removes the
  occurrence wherever it sits, so mon-lab-reseau gives virbr-mon-reseau, not
  virbr-monreseau.

  The remediation states the target length rather than how many characters to
  drop: a suggested truncation is not a name anyone wants, and a target lets the
  author pick one that means something. docs/contract-v1.* now documents the
  limit per provider, which is where an author looks.