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>
49 lines
1.5 KiB
Bash
Executable File
49 lines
1.5 KiB
Bash
Executable File
#!/bin/bash
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# extract-kernel-config.sh — Pull kernel config from Tiny Core rootfs
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# Usage: ./hack/extract-kernel-config.sh [path-to-core.gz]
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
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ROOTFS_DIR="${ROOTFS_DIR:-$PROJECT_ROOT/build/rootfs-work}"
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COREGZ="${1:-$ROOTFS_DIR/rootfs}"
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OUTPUT="$PROJECT_ROOT/build/cache/kernel-config"
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if [ -d "$COREGZ" ]; then
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# Rootfs already extracted
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ROOTFS="$COREGZ"
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elif [ -f "$COREGZ" ]; then
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# Extract core.gz
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TMPDIR=$(mktemp -d)
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cd "$TMPDIR"
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zcat "$COREGZ" | cpio -idm 2>/dev/null
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ROOTFS="$TMPDIR"
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fi
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# Try /proc/config.gz in rootfs
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if [ -f "$ROOTFS/proc/config.gz" ]; then
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zcat "$ROOTFS/proc/config.gz" > "$OUTPUT"
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echo "==> Extracted kernel config to: $OUTPUT"
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"$PROJECT_ROOT/build/config/kernel-audit.sh" "$OUTPUT"
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else
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echo "Kernel config not found in rootfs /proc/config.gz"
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echo ""
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echo "Alternative: Boot the Tiny Core ISO in QEMU and run:"
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echo " zcat /proc/config.gz > /tmp/kernel-config"
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echo " # Then copy it out"
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echo ""
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echo "Or check if /boot/config-* exists in the ISO"
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# Try looking in /boot
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for f in "$ROOTFS"/boot/config-*; do
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[ -f "$f" ] || continue
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cp "$f" "$OUTPUT"
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echo "==> Found boot config: $f → $OUTPUT"
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"$PROJECT_ROOT/build/config/kernel-audit.sh" "$OUTPUT"
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exit 0
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done
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fi
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[ -d "${TMPDIR:-}" ] && rm -rf "$TMPDIR"
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