d9ac58418d
fix: macOS dev VM, CA certs, DNS fallback, Portainer Edge integration
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CI / Go Tests (push) Has been cancelled
CI / Build Go Binaries (amd64, linux, linux-amd64) (push) Has been cancelled
CI / Build Go Binaries (arm64, linux, linux-arm64) (push) Has been cancelled
CI / Shellcheck (push) Has been cancelled
- dev-vm.sh: rewrite for macOS (bsdtar ISO extraction, Homebrew mkfs.ext4
detection, direct kernel boot, TCG acceleration, port 8080 forwarding)
- inject-kubesolo.sh: add CA certificates bundle from builder so containerd
can verify TLS when pulling from registries (Docker Hub, etc.)
- 50-network.sh: add DNS fallback (10.0.2.3 + 8.8.8.8) when DHCP client
doesn't populate /etc/resolv.conf
- 90-kubesolo.sh: serve kubeconfig via HTTP on port 8080 for reliable
retrieval from host, add 127.0.0.1 and 10.0.2.15 to API server SANs
- portainer.go: add headless Service to Edge Agent manifest (required for
agent peer discovery DNS lookup)
- 10-parse-cmdline.sh + init.sh: add kubesolo.edge_id/edge_key boot params
- 20-persistent-mount.sh: auto-format unformatted data disks on first boot
- hack/fix-portainer-service.sh: helper to patch running cluster
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-02-12 02:11:31 -06:00
39732488ef
feat: custom kernel build + boot fixes for working container runtime
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Build a custom Tiny Core 17.0 kernel (6.18.2) with missing configs
that the stock kernel lacks for container workloads:
- CONFIG_CGROUP_BPF=y (cgroup v2 device control via BPF)
- CONFIG_DEVTMPFS=y (auto-create /dev device nodes)
- CONFIG_DEVTMPFS_MOUNT=y (auto-mount devtmpfs)
- CONFIG_MEMCG=y (memory cgroup controller for memory.max)
- CONFIG_CFS_BANDWIDTH=y (CPU bandwidth throttling for cpu.max)
Also strips unnecessary subsystems (sound, GPU, wireless, Bluetooth,
KVM, etc.) for minimal footprint on a headless K8s edge appliance.
Init system fixes for successful boot-to-running-pods:
- Add switch_root in init.sh to escape initramfs (runc pivot_root)
- Add mountpoint guards in 00-early-mount.sh (skip if already mounted)
- Create essential device nodes after switch_root (kmsg, console, etc.)
- Enable cgroup v2 controller delegation with init process isolation
- Mount BPF filesystem for cgroup v2 device control
- Add mknod fallback from sysfs in 20-persistent-mount.sh for /dev/vda
- Move KubeSolo binary to /usr/bin (avoid /usr/local bind mount hiding)
- Generate /etc/machine-id in 60-hostname.sh (kubelet requires it)
- Pre-initialize iptables tables before kube-proxy starts
- Add nft_reject, nft_fib, xt_nfacct to kernel modules list
Build system changes:
- New build-kernel.sh script for custom kernel compilation
- Dockerfile.builder adds kernel build deps (flex, bison, libelf, etc.)
- Selective kernel module install (only modules.list + transitive deps)
- Install iptables-nft (xtables-nft-multi) + shared libs in rootfs
Tested: ISO boots in QEMU, node reaches Ready in ~35s, CoreDNS and
local-path-provisioner pods start and run successfully.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-02-11 23:13:31 -06:00
e372df578b
feat: initial Phase 1 PoC scaffolding for KubeSolo OS
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Complete Phase 1 implementation of KubeSolo OS — an immutable, bootable
Linux distribution built on Tiny Core Linux for running KubeSolo
single-node Kubernetes.
Build system:
- Makefile with fetch, rootfs, initramfs, iso, disk-image targets
- Dockerfile.builder for reproducible builds
- Scripts to download Tiny Core, extract rootfs, inject KubeSolo,
pack initramfs, and create bootable ISO/disk images
Init system (10 POSIX sh stages):
- Early mount (proc/sys/dev/cgroup2), cmdline parsing, persistent
mount with bind-mounts, kernel module loading, sysctl, DHCP
networking, hostname, clock sync, containerd prep, KubeSolo exec
Shared libraries:
- functions.sh (device wait, IP lookup, config helpers)
- network.sh (static IP, config persistence, interface detection)
- health.sh (containerd, API server, node readiness checks)
- Emergency shell for boot failure debugging
Testing:
- QEMU boot test with serial log marker detection
- K8s readiness test with kubectl verification
- Persistence test (reboot + verify state survives)
- Workload deployment test (nginx pod)
- Local storage test (PVC + local-path provisioner)
- Network policy test
- Reusable run-vm.sh launcher
Developer tools:
- dev-vm.sh (interactive QEMU with port forwarding)
- rebuild-initramfs.sh (fast iteration)
- inject-ssh.sh (dropbear SSH for debugging)
- extract-kernel-config.sh + kernel-audit.sh
Documentation:
- Full design document with architecture research
- Boot flow documentation covering all 10 init stages
- Cloud-init examples (DHCP, static IP, Portainer Edge, air-gapped)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com >
2026-02-11 10:18:42 -06:00
