Files
mesh-lab/scenarios/growing-mesh.yml
T
jschoubben 5c91c0ecd2 Scenarios: egress where images are needed, and images: cut to what is ours
Every scenario that places a container runtime gives each of its machines
`egress: true` — a node that runs modules pulls images from the internet, which is what
a node does. The underlay-only scenarios (bootstrap-single, behind-nat,
segmented-and-unforwardable, the-ordinary-shape, two-on-a-segment) stay sealed on
purpose: an extra NIC would change the very reachability they are asserting about.

`images:` keeps only the mesh's own — 55 third-party entries leave whole-mesh-full
alone, and the machine fetches them itself by the digest its module.json already pins.
The whole-mesh beds also say per machine which of ours they get: novox the substrate
control plane and its own fifteen runtimes, ace its twenty-four, the two workstations
one each. That is not a lab economy. An operator's workstation holds the images its own
modules need, and giving these two the union would put some thirty gigabytes onto a
thirty-gigabyte disk.

bootstrap-with-registry.yml is deleted. It existed only to demonstrate the lab's
registry, nothing referenced it, and there is nothing left for it to demonstrate.

Claude-Session: https://claude.ai/code/session_01LrgweAeERJYBg88c5cKDzF
2026-09-10 23:16:23 +02:00

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YAML

# Three machines, joined one at a time.
#
# The point is not the third machine. It is that adding one changes **every other node's** peer
# list: each existing node has to be told again, or the newcomer is on a network nobody else can
# see. A mesh that only configures the arriving node looks like it worked and is half a network.
#
# So this scenario exists to be raised, then grown — enrol two, push, check; enrol the third,
# push, and check that the first two changed.
scenario: growing-mesh
segments:
hosting:
kind: public
cidr: [192.0.2.0/24]
machines:
anchor:
at: { segment: hosting, address: [192.0.2.10] }
egress: true
inbound: allow
laptop:
at: { segment: hosting, address: [192.0.2.20] }
egress: true
inbound: allow
workstation:
at: { segment: hosting, address: [192.0.2.30] }
egress: true
inbound: allow
images:
- mesh-control:development
place:
all: [host, runtime]