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>
48 lines
1.5 KiB
Bash
Executable File
48 lines
1.5 KiB
Bash
Executable File
#!/bin/sh
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# 20-persistent-mount.sh — Mount persistent data partition and bind-mount writable paths
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if [ "$KUBESOLO_NOPERSIST" = "1" ]; then
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log "Running in RAM-only mode — no persistent storage"
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# Create tmpfs-backed directories so KubeSolo has somewhere to write
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mkdir -p /var/lib/kubesolo /var/lib/containerd /etc/kubesolo /var/log /usr/local
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return 0
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fi
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# Wait for device to appear (USB, slow disks, virtio)
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log "Waiting for data device: $KUBESOLO_DATA_DEV"
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WAIT_SECS=30
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for i in $(seq 1 "$WAIT_SECS"); do
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[ -b "$KUBESOLO_DATA_DEV" ] && break
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sleep 1
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done
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if [ ! -b "$KUBESOLO_DATA_DEV" ]; then
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log_err "Data device $KUBESOLO_DATA_DEV not found after ${WAIT_SECS}s"
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return 1
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fi
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# Mount data partition
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mkdir -p "$DATA_MOUNT"
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mount -t ext4 -o noatime "$KUBESOLO_DATA_DEV" "$DATA_MOUNT" || {
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log_err "Failed to mount $KUBESOLO_DATA_DEV"
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return 1
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}
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log_ok "Mounted $KUBESOLO_DATA_DEV at $DATA_MOUNT"
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# Create persistent directory structure (first boot)
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for dir in kubesolo containerd etc-kubesolo log usr-local network; do
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mkdir -p "$DATA_MOUNT/$dir"
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done
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# Ensure target mount points exist
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mkdir -p /var/lib/kubesolo /var/lib/containerd /etc/kubesolo /var/log /usr/local
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# Bind mount persistent paths
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mount --bind "$DATA_MOUNT/kubesolo" /var/lib/kubesolo
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mount --bind "$DATA_MOUNT/containerd" /var/lib/containerd
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mount --bind "$DATA_MOUNT/etc-kubesolo" /etc/kubesolo
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mount --bind "$DATA_MOUNT/log" /var/log
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mount --bind "$DATA_MOUNT/usr-local" /usr/local
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log_ok "Persistent bind mounts configured"
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