Configure Pimox worker static networking

This commit is contained in:
juvdiaz 2026-07-01 09:04:06 -06:00
parent d63e402012
commit e062de2413
5 changed files with 174 additions and 0 deletions

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@ -727,6 +727,15 @@ Worker indexes are stable. Index `1` maps to VMID `9010`, node name
so on. `LAB_PIMOX_SKIP_WORKER_INDEXES=1` leaves the first slot unmanaged while
allowing higher indexes to be automated.
Worker networking is deterministic by default. After cloning or reusing a VM,
the pipeline uses qemu-guest-agent to write a static `/etc/network/interfaces`
entry before waiting for SSH, so a missing DHCP lease cannot stall the build.
Defaults are `LAB_PIMOX_WORKER_NETWORK_MODE=static`,
`LAB_PIMOX_WORKER_STATIC_IPS="192.168.100.66 192.168.100.67 192.168.100.76"`,
`LAB_PIMOX_WORKER_GATEWAY=192.168.100.1`, and
`LAB_PIMOX_WORKER_DNS_SERVERS="192.168.100.89 1.1.1.1"`. Set
`LAB_PIMOX_WORKER_NETWORK_MODE=dhcp` to restore the old DHCP-only behavior.
Long-running `./jeannie up` steps keep compact output by default, but
the active step line refreshes with elapsed time and the latest log line. Set
`JEANNIE_PROGRESS_INTERVAL_SECONDS=5` for faster heartbeats, or

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@ -727,6 +727,15 @@ Worker indexes are stable. Index `1` maps to VMID `9010`, node name
so on. `LAB_PIMOX_SKIP_WORKER_INDEXES=1` leaves the first slot unmanaged while
allowing higher indexes to be automated.
Worker networking is deterministic by default. After cloning or reusing a VM,
the pipeline uses qemu-guest-agent to write a static `/etc/network/interfaces`
entry before waiting for SSH, so a missing DHCP lease cannot stall the build.
Defaults are `LAB_PIMOX_WORKER_NETWORK_MODE=static`,
`LAB_PIMOX_WORKER_STATIC_IPS="192.168.100.66 192.168.100.67 192.168.100.76"`,
`LAB_PIMOX_WORKER_GATEWAY=192.168.100.1`, and
`LAB_PIMOX_WORKER_DNS_SERVERS="192.168.100.89 1.1.1.1"`. Set
`LAB_PIMOX_WORKER_NETWORK_MODE=dhcp` to restore the old DHCP-only behavior.
Long-running `./{{ main_script }} up` steps keep compact output by default, but
the active step line refreshes with elapsed time and the latest log line. Set
`JEANNIE_PROGRESS_INTERVAL_SECONDS=5` for faster heartbeats, or

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@ -142,6 +142,15 @@ destroy and recreate existing worker VMs from the current template. The pipeline
refuses `LAB_PIMOX_WORKER_STORAGE=local` so only the template VM lives on local
storage.
Worker networking defaults to deterministic static LAN addresses configured
through qemu-guest-agent after clone/start and before SSH wait:
`LAB_PIMOX_WORKER_NETWORK_MODE=static`,
`LAB_PIMOX_WORKER_STATIC_IPS="192.168.100.66 192.168.100.67 192.168.100.76"`,
`LAB_PIMOX_WORKER_GATEWAY=192.168.100.1`, `LAB_PIMOX_WORKER_INTERFACE=enp0s18`,
and `LAB_PIMOX_WORKER_DNS_SERVERS="192.168.100.89 1.1.1.1"`. Use
`LAB_PIMOX_WORKER_NETWORK_MODE=dhcp` only when DHCP reservations are known to be
stable.
Worker indexes are stable: index `1` maps to VMID `9010`,
`pimox-worker-01`, and worker key `pimox01`; index `2` maps to VMID `9011`,
`pimox-worker-02`, and worker key `pimox02`. `LAB_PIMOX_SKIP_WORKER_INDEXES`

136
jeannie
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@ -1145,6 +1145,107 @@ pimox_generated_mac() {
$((vmid & 255))
}
pimox_worker_static_ip() {
local index="$1"
local static_ips="$2"
local current_index=1
local ip
static_ips="${static_ips//,/ }"
for ip in ${static_ips}; do
if ((current_index == index)); then
printf '%s\n' "${ip}"
return 0
fi
current_index=$((current_index + 1))
done
return 1
}
validate_ipv4_cidr_or_host() {
local value="$1"
[[ "${value}" =~ ^[0-9]{1,3}(\.[0-9]{1,3}){3}(/[0-9]{1,2})?$ ]]
}
configure_pimox_worker_guest_network() {
local pimox_host="$1"
local pimox_user="$2"
local pimox_key="$3"
local vmid="$4"
local qm_bin="$5"
local worker_ip="$6"
local gateway="$7"
local dns_servers="$8"
local interface_name="$9"
local timeout_seconds="${LAB_PIMOX_GUEST_AGENT_CONFIG_TIMEOUT_SECONDS:-300}"
local deadline
local script
local encoded_script
local network_output
if ! validate_ipv4_cidr_or_host "${worker_ip}"; then
echo "Invalid LAB_PIMOX_WORKER_STATIC_IPS entry '${worker_ip}' for VM ${vmid}." >&2
return 1
fi
if [[ "${worker_ip}" != */* ]]; then
worker_ip="${worker_ip}/24"
fi
if ! [[ "${gateway}" =~ ^[0-9]{1,3}(\.[0-9]{1,3}){3}$ ]]; then
echo "Invalid LAB_PIMOX_WORKER_GATEWAY '${gateway}'." >&2
return 1
fi
if ! [[ "${dns_servers}" =~ ^[0-9.[:space:]]+$ ]]; then
echo "Invalid LAB_PIMOX_WORKER_DNS_SERVERS '${dns_servers}'." >&2
return 1
fi
if ! [[ "${interface_name}" =~ ^[A-Za-z0-9_.:-]+$ ]]; then
echo "Invalid LAB_PIMOX_WORKER_INTERFACE '${interface_name}'." >&2
return 1
fi
script="$(cat <<EOF
set -eu
cat >/tmp/homelab-interfaces <<'INTERFACES'
auto lo
iface lo inet loopback
auto ${interface_name}
iface ${interface_name} inet static
address ${worker_ip}
gateway ${gateway}
dns-nameservers ${dns_servers}
INTERFACES
sudo cp /tmp/homelab-interfaces /etc/network/interfaces
sudo systemctl disable --now systemd-networkd NetworkManager 2>/dev/null || true
sudo systemctl enable networking >/dev/null 2>&1 || true
sudo systemctl restart networking || true
sudo ip addr flush dev ${interface_name} || true
sudo ifup ${interface_name} || true
sudo systemctl restart ssh 2>/dev/null || true
ip -br addr show ${interface_name}
ip route
EOF
)"
encoded_script="$(printf '%s' "${script}" | base64 | tr -d '\n')"
deadline=$((SECONDS + timeout_seconds))
while ((SECONDS < deadline)); do
if network_output="$(pimox_ssh "${pimox_host}" "${pimox_user}" "${pimox_key}" "sudo '${qm_bin}' guest exec '${vmid}' -- bash -lc \"printf '%s' '${encoded_script}' | base64 -d | sudo bash\"" 2>&1)"; then
printf '%s\n' "${network_output}" | sed 's/^/ guest-network: /'
return 0
fi
sleep 5
done
echo "Timed out configuring static guest network for Pimox VM ${vmid} through qemu-guest-agent." >&2
if [[ -n "${network_output:-}" ]]; then
printf '%s\n' "${network_output}" | sed 's/^/ /' >&2
fi
return 1
}
cpuset_cpu_count() {
local cpuset="$1"
local count=0
@ -1222,6 +1323,11 @@ ensure_pimox_worker_node() {
local worker_storage="${19}"
local worker_replace_existing="${20}"
local worker_cpu_affinity="${21}"
local worker_network_mode="${LAB_PIMOX_WORKER_NETWORK_MODE:-static}"
local worker_static_ips="${LAB_PIMOX_WORKER_STATIC_IPS:-192.168.100.66 192.168.100.67 192.168.100.76}"
local worker_gateway="${LAB_PIMOX_WORKER_GATEWAY:-192.168.100.1}"
local worker_dns_servers="${LAB_PIMOX_WORKER_DNS_SERVERS:-192.168.100.89 1.1.1.1}"
local worker_interface="${LAB_PIMOX_WORKER_INTERFACE:-enp0s18}"
local padded
local vmid
local worker_key
@ -1229,6 +1335,7 @@ ensure_pimox_worker_node() {
local node_name
local mac
local guest_ip
local static_ip
printf -v padded '%02d' "${index}"
vmid=$((worker_base_vmid + index - 1))
@ -1320,6 +1427,35 @@ sudo '${qm_bin}' set '${vmid}' --onboot 1
sudo '${qm_bin}' start '${vmid}'"
fi
case "${worker_network_mode}" in
static)
if ! static_ip="$(pimox_worker_static_ip "${index}" "${worker_static_ips}")"; then
echo "LAB_PIMOX_WORKER_NETWORK_MODE=static requires LAB_PIMOX_WORKER_STATIC_IPS to include an IP for worker index ${index}." >&2
exit 1
fi
echo "Configuring Pimox worker VM ${vmid} static network ${static_ip} via qemu-guest-agent..."
if ! configure_pimox_worker_guest_network \
"${pimox_host}" \
"${pimox_user}" \
"${pimox_key}" \
"${vmid}" \
"${qm_bin}" \
"${static_ip}" \
"${worker_gateway}" \
"${worker_dns_servers}" \
"${worker_interface}"; then
pimox_worker_vm_debug "${pimox_host}" "${pimox_user}" "${pimox_key}" "${vmid}" "${qm_bin}"
exit 1
fi
;;
dhcp)
;;
*)
echo "LAB_PIMOX_WORKER_NETWORK_MODE must be 'static' or 'dhcp'." >&2
exit 1
;;
esac
if ! guest_ip="$(wait_for_pimox_guest_ssh "${pimox_host}" "${pimox_user}" "${pimox_key}" "${vmid}" "${worker_user}" "${worker_key_path}" "${ip_prefix}" "${timeout_seconds}" "${qm_bin}")"; then
echo "Timed out waiting for worker VM ${vmid} (${worker_name}) to report a reachable guest IP." >&2
exit 1

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@ -320,6 +320,16 @@ PY
assert_contains "heal cooldown escalates diagnostics" "next diagnostic command: ./jeannie doctor-cluster --details" "${output}"
}
test_pimox_worker_static_ip_selection() {
assert_eq "pimox worker static IP index 1" "192.168.100.66" "$(pimox_worker_static_ip 1 "192.168.100.66 192.168.100.67")"
assert_eq "pimox worker static IP index 2" "192.168.100.67" "$(pimox_worker_static_ip 2 "192.168.100.66,192.168.100.67")"
if pimox_worker_static_ip 3 "192.168.100.66 192.168.100.67" >/dev/null; then
fail "pimox worker static IP missing index should fail"
else
pass "pimox worker static IP missing index should fail"
fi
}
test_pimox_worker_count_detects_generated_topology
test_configured_worker_count_cannot_hide_existing_workers
test_configured_worker_count_can_expand_target_set
@ -332,6 +342,7 @@ test_report_renderer_empty_problems_message
test_inventory_validator_accepts_current_inventory
test_inventory_validator_rejects_ip_drift
test_heal_cooldown_escalates_to_diagnostics
test_pimox_worker_static_ip_selection
if ((FAILURES > 0)); then
printf '\n%s unit test(s) failed.\n' "${FAILURES}" >&2