Add nanoswitch and cluster testing
Adds nanoswitch and the `switched-multi2` launch target to launch two Smalltown instances on a switched
network and enroll them into a single cluster. Nanoswitch contains a Linux bridge and a minimal DHCP server
and connects to the two Smalltown instances over virtual Ethernet cables. Also moves out the DHCP client into
a package since nanoswitch needs it.
Test Plan:
Manually tested using `bazel run //:launch -- switched-multi2` and observing that the second VM
(whose serial port is mapped to stdout) prints that it is enrolled. Also validated by `bazel run //core/cmd/dbg -- kubectl get node -o wide` returning two ready nodes.
X-Origin-Diff: phab/D572
GitOrigin-RevId: 9f6e2b3d8268749dd81588205646ae3976ad14b3
diff --git a/core/internal/storage/blockdev.go b/core/internal/storage/blockdev.go
index da3dcfa..fc556e1 100644
--- a/core/internal/storage/blockdev.go
+++ b/core/internal/storage/blockdev.go
@@ -104,7 +104,7 @@
return err
}
defer integrityPartition.Close()
- zeroed512BBuf := make([]byte, 4096)
+ zeroed512BBuf := make([]byte, 4096*128)
if _, err := integrityPartition.Write(zeroed512BBuf); err != nil {
return fmt.Errorf("failed to wipe header: %w", err)
}