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>
73 lines
2.6 KiB
Bash
Executable File
73 lines
2.6 KiB
Bash
Executable File
#!/bin/bash
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# fetch-components.sh — Download Tiny Core ISO and KubeSolo binary
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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 "$SCRIPT_DIR/../.." && pwd)"
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CACHE_DIR="${CACHE_DIR:-$PROJECT_ROOT/build/cache}"
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# Load versions
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# shellcheck source=../config/versions.env
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. "$SCRIPT_DIR/../config/versions.env"
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mkdir -p "$CACHE_DIR"
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# --- Tiny Core Linux ISO ---
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TC_ISO="$CACHE_DIR/$TINYCORE_ISO"
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TC_URL="${TINYCORE_MIRROR}/${TINYCORE_VERSION%%.*}.x/${TINYCORE_ARCH}/release/${TINYCORE_ISO}"
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if [ -f "$TC_ISO" ]; then
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echo "==> Tiny Core ISO already cached: $TC_ISO"
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else
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echo "==> Downloading Tiny Core Linux ${TINYCORE_VERSION} (${TINYCORE_ARCH})..."
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echo " URL: $TC_URL"
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wget -q --show-progress -O "$TC_ISO" "$TC_URL" || {
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# Fallback: try alternate mirror structure
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TC_URL_ALT="${TINYCORE_MIRROR}/${TINYCORE_VERSION%%.*}.x/${TINYCORE_ARCH}/release/CorePure64-current.iso"
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echo " Primary URL failed, trying: $TC_URL_ALT"
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wget -q --show-progress -O "$TC_ISO" "$TC_URL_ALT"
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}
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echo "==> Downloaded: $TC_ISO ($(du -h "$TC_ISO" | cut -f1))"
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fi
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# --- KubeSolo ---
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KUBESOLO_INSTALLER="$CACHE_DIR/install-kubesolo.sh"
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KUBESOLO_BIN="$CACHE_DIR/kubesolo"
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if [ -f "$KUBESOLO_BIN" ]; then
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echo "==> KubeSolo binary already cached: $KUBESOLO_BIN"
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else
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echo "==> Downloading KubeSolo installer..."
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curl -sfL "$KUBESOLO_INSTALL_URL" -o "$KUBESOLO_INSTALLER"
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echo "==> Extracting KubeSolo binary..."
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echo " NOTE: The installer normally runs 'install'. We extract the binary URL instead."
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echo " For Phase 1 PoC, install KubeSolo on a host and copy the binary."
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echo ""
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echo " Manual step required:"
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echo " 1. On a Linux x86_64 host: curl -sfL https://get.kubesolo.io | sudo sh -"
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echo " 2. Copy /usr/local/bin/kubesolo to: $KUBESOLO_BIN"
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echo " 3. Re-run: make rootfs"
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echo ""
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# Try to extract download URL from installer script
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BINARY_URL=$(grep -oP 'https://[^ ]+kubesolo[^ ]+' "$KUBESOLO_INSTALLER" 2>/dev/null | head -1 || true)
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if [ -n "$BINARY_URL" ]; then
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echo " Attempting direct download from: $BINARY_URL"
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curl -sfL "$BINARY_URL" -o "$KUBESOLO_BIN" && chmod +x "$KUBESOLO_BIN" || {
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echo " Direct download failed. Use manual step above."
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}
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fi
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if [ -f "$KUBESOLO_BIN" ]; then
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echo "==> KubeSolo binary: $KUBESOLO_BIN ($(du -h "$KUBESOLO_BIN" | cut -f1))"
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fi
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fi
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# --- Summary ---
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echo ""
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echo "==> Component cache:"
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ls -lh "$CACHE_DIR"/ 2>/dev/null || true
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echo ""
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echo "==> Fetch complete."
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