Adolfo Delorenzo
e372df578b
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>
39 lines
1.1 KiB
Bash
Executable File
39 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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# 90-kubesolo.sh — Start KubeSolo (final init stage)
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#
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# This stage exec's KubeSolo as PID 1 (replacing init).
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# KubeSolo manages containerd, kubelet, API server, and all K8s components.
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KUBESOLO_BIN="/usr/local/bin/kubesolo"
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if [ ! -x "$KUBESOLO_BIN" ]; then
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log_err "KubeSolo binary not found at $KUBESOLO_BIN"
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return 1
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fi
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# Build KubeSolo command line
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KUBESOLO_ARGS="--path /var/lib/kubesolo --local-storage true"
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# Add extra SANs if hostname resolves
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HOSTNAME="$(hostname)"
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if [ -n "$HOSTNAME" ]; then
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KUBESOLO_ARGS="$KUBESOLO_ARGS --apiserver-extra-sans $HOSTNAME"
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fi
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# Add any extra flags from boot parameters
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if [ -n "$KUBESOLO_EXTRA_FLAGS" ]; then
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KUBESOLO_ARGS="$KUBESOLO_ARGS $KUBESOLO_EXTRA_FLAGS"
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fi
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# Add flags from persistent config file
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if [ -f /etc/kubesolo/extra-flags ]; then
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KUBESOLO_ARGS="$KUBESOLO_ARGS $(cat /etc/kubesolo/extra-flags)"
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fi
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log "Starting KubeSolo: $KUBESOLO_BIN $KUBESOLO_ARGS"
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log "Kubeconfig will be at: /var/lib/kubesolo/pki/admin/admin.kubeconfig"
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# exec replaces this init process — KubeSolo becomes PID 1
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# shellcheck disable=SC2086
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exec $KUBESOLO_BIN $KUBESOLO_ARGS
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