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nixos/scripts/ha/acceptance-tests.sh
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beatzaplentyandClaude Sonnet 4.6 e085d4707c
Check NixOS configurations / eval-hosts (push) Successful in 10m22s
fix(ha): add DRBD sync progress indicator and pre-flight sync gate
cluster-init.sh: replace the fixed 300-iteration sync wait with an
indefinite loop that prints an in-place progress line (%done, ETA, speed)
from /proc/drbd every 3 s. Clears the line with printf \r before logging
completion, so the output stays clean alongside the [cluster-init] log
lines.

acceptance-tests.sh: add a pre-flight check that hard-exits if
drbdadm dstate is not UpToDate/UpToDate, with a hint to the watch
command for monitoring progress. Tests cannot give accurate results
while the initial full-sync is in progress.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-07-29 00:46:57 +10:00

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#!/usr/bin/env bash
# acceptance-tests.sh — HA cluster acceptance tests (T1T7)
#
# Run from a host with SSH access to both HA nodes (or from node1 itself).
# All 7 tests must pass before considering the cluster production-ready.
# Test values below must match variables.nix haServer* values.
set -euo pipefail
# ── Configuration ─────────────────────────────────────────────────────────
# All values override-able via environment variables; defaults match variables.nix.
NODE1="${NODE1:-ha-server-1}"
NODE2="${NODE2:-ha-server-2}"
NODE1_IP="${NODE1_IP:-192.168.2.228}" # vars.haServer1Ip
NODE2_IP="${NODE2_IP:-192.168.2.227}" # vars.haServer2Ip
VIP="${VIP:-192.168.2.229}" # vars.haServerVip
XFS_MOUNT="${XFS_MOUNT:-/srv/ha-data}" # vars.haStorageRoot
ISCSI_IQN="${ISCSI_IQN:-iqn.2026-01.home.sweet:ha-storage}" # vars.haIscsiIqn
# ──────────────────────────────────────────────────────────────────────────
PASS=0
FAIL=0
RESULTS=()
# Use PASS=$((PASS+1)) instead of ((PASS++)) — the latter evaluates to 0 when
# PASS=0, which triggers set -e and kills the script after the very first PASS.
pass() { echo " PASS: $1"; PASS=$((PASS+1)); RESULTS+=("PASS $1"); }
fail() { echo " FAIL: $1"; FAIL=$((FAIL+1)); RESULTS+=("FAIL $1"); }
HA_USER="nixos"
n1() { ssh -i ~/.ssh/id_ed25519 -o StrictHostKeyChecking=no -o ConnectTimeout=5 "${HA_USER}@${NODE1_IP}" sudo "$@" 2>/dev/null; }
n2() { ssh -i ~/.ssh/id_ed25519 -o StrictHostKeyChecking=no -o ConnectTimeout=5 "${HA_USER}@${NODE2_IP}" sudo "$@" 2>/dev/null; }
echo "════════════════════════════════════════════════════"
echo " HA Cluster Acceptance Tests — $(date '+%Y-%m-%d %H:%M:%S')"
echo "════════════════════════════════════════════════════"
# ── Pre-flight: DRBD sync must be complete ────────────────────────────────
# Tests that check disk state, XFS mount, and iSCSI will fail or give false
# results while the initial full sync is in progress. Block until done.
echo ""
echo "Pre-flight: verifying DRBD sync is complete..."
DRBD_PREFLIGHT=$(n1 "drbdadm dstate ha-data 2>/dev/null" 2>/dev/null || echo "unknown")
if ! echo "$DRBD_PREFLIGHT" | grep -q "^UpToDate/UpToDate$"; then
echo ""
echo " ERROR: DRBD initial sync not complete."
echo " Current dstate on $NODE1: $DRBD_PREFLIGHT"
echo ""
echo " Monitor progress:"
echo " ssh nixos@$NODE1_IP 'sudo watch -n3 cat /proc/drbd'"
echo ""
echo " Re-run this script once dstate shows UpToDate/UpToDate."
exit 1
fi
echo " dstate: $DRBD_PREFLIGHT — ready."
# ── Detect Active/Standby nodes ────────────────────────────────────────────
# Use crm_mon to detect which node holds the Promoted (Primary) DRBD resource.
# Pacemaker is authoritative; DRBD role can briefly read as Secondary while
# Pacemaker is mid-transition, giving a false Active/Standby swap.
# Wait up to 90 s for Pacemaker to settle before giving up.
echo ""
echo "Detecting Active/Standby nodes (waiting for Pacemaker to settle)..."
ACTIVE_NODE=""
for i in $(seq 1 30); do
# crm_mon -1 output contains "Promoted: [ <node> ]" for the DRBD master.
CRM_OUT=$(n1 "crm_mon -1 2>/dev/null" 2>/dev/null || n2 "crm_mon -1 2>/dev/null" 2>/dev/null || true)
# Match "Promoted:" (Pacemaker 2.x) or "Masters:" (Pacemaker 1.x), not "Unpromoted:"/"Slaves:"
ACTIVE_NODE=$(echo "$CRM_OUT" | grep -E '^\s*(Promoted|Masters):' | grep -oE '\b(ha-server-[0-9]+)\b' | head -1 || true)
[[ -n "$ACTIVE_NODE" ]] && break
sleep 3
done
if [[ -z "$ACTIVE_NODE" ]]; then
echo " WARNING: could not determine Active node from crm_mon after 90 s — defaulting to $NODE1"
ACTIVE_NODE="$NODE1"
fi
if [[ "$ACTIVE_NODE" == "$NODE1" ]]; then
ACTIVE_IP="$NODE1_IP"
STANDBY_NODE="$NODE2"; STANDBY_IP="$NODE2_IP"
na() { n1 "$@"; }
ns() { n2 "$@"; }
else
ACTIVE_IP="$NODE2_IP"
STANDBY_NODE="$NODE1"; STANDBY_IP="$NODE1_IP"
na() { n2 "$@"; }
ns() { n1 "$@"; }
fi
echo " Active: $ACTIVE_NODE ($ACTIVE_IP)"
echo " Standby: $STANDBY_NODE ($STANDBY_IP)"
# ── T1: Corosync quorum established ──────────────────────────────────────
echo ""
echo "[T1] Corosync quorum"
if na "corosync-quorumtool -s" 2>/dev/null | grep -q "Quorate:.*Yes"; then
pass "cluster has quorum"
else
fail "cluster does not have quorum — check corosync on both nodes"
fi
# ── T2: DRBD Primary on Active node, Secondary on Standby ────────────────
echo ""
echo "[T2] DRBD roles"
DRBD_ROLE=$(na "drbdadm role ha-data" 2>/dev/null || echo "unknown")
if [[ "$DRBD_ROLE" == "Primary/Secondary" || "$DRBD_ROLE" == "Primary" ]]; then
pass "DRBD Primary on $ACTIVE_NODE ($DRBD_ROLE)"
else
fail "unexpected DRBD role on $ACTIVE_NODE: $DRBD_ROLE (expected Primary/Secondary)"
fi
DRBD_DSTATE=$(na "drbdadm dstate ha-data" 2>/dev/null || echo "unknown")
if echo "$DRBD_DSTATE" | grep -q "UpToDate"; then
pass "DRBD disk state UpToDate ($DRBD_DSTATE)"
else
fail "DRBD disk not UpToDate: $DRBD_DSTATE"
fi
# ── T3: XFS mounted at haStorageRoot on the Active node ──────────────────
echo ""
echo "[T3] XFS mount"
if na "mountpoint -q '${XFS_MOUNT}'" 2>/dev/null; then
pass "XFS mounted at ${XFS_MOUNT} on $ACTIVE_NODE"
else
fail "XFS not mounted at ${XFS_MOUNT} on $ACTIVE_NODE"
fi
if ns "mountpoint -q '${XFS_MOUNT}'" 2>/dev/null; then
fail "XFS unexpectedly mounted on $STANDBY_NODE (should only be on Active node)"
else
pass "XFS not mounted on $STANDBY_NODE (correct — Standby)"
fi
# ── T4: iSCSI target visible on Active node ───────────────────────────────
echo ""
echo "[T4] iSCSI target"
IQN_COUNT=$(na "bash -c 'ls /sys/kernel/config/target/iscsi/ 2>/dev/null | grep -c iqn || true'" 2>/dev/null || echo "0")
if [[ "$IQN_COUNT" -ge 1 ]]; then
pass "iSCSI IQN active on $ACTIVE_NODE ($IQN_COUNT target(s))"
else
fail "no iSCSI IQN active on $ACTIVE_NODE"
fi
# iSCSI port reachable from Standby node via VIP.
# Use bash TCP probe (no iscsiadm needed — just checks port 3260 is open).
if ns "bash -c 'echo >/dev/tcp/${VIP}/3260' 2>/dev/null"; then
pass "iSCSI port 3260 reachable from $STANDBY_NODE via VIP ${VIP}"
else
fail "iSCSI port 3260 not reachable from $STANDBY_NODE via ${VIP}"
fi
# ── T5: Failover — standby Active node, verify resources move to Standby ──
echo ""
echo "[T5] Failover (standby $ACTIVE_NODE)"
ACTIVE_CRMD_NAME=$(na "crm_node -n" 2>/dev/null || echo "")
na "crm_standby -N '${ACTIVE_CRMD_NAME}' -v on" 2>/dev/null || true
echo " Waiting up to 120 s for resources to move to $STANDBY_NODE..."
MOVED=false
for i in $(seq 1 120); do
if ns "mountpoint -q '${XFS_MOUNT}'" 2>/dev/null; then
MOVED=true
echo " Resources moved in ${i}s"
break
fi
sleep 1
done
if $MOVED; then
pass "XFS mounted on $STANDBY_NODE after failover"
IQN_ON_STANDBY=$(ns "bash -c 'ls /sys/kernel/config/target/iscsi/ 2>/dev/null | grep -c iqn || true'" 2>/dev/null || echo "0")
[[ "$IQN_ON_STANDBY" -ge 1 ]] \
&& pass "iSCSI target active on $STANDBY_NODE after failover" \
|| fail "iSCSI target NOT active on $STANDBY_NODE after failover"
else
fail "XFS did not mount on $STANDBY_NODE within 120 s — failover incomplete"
fi
# ── T6: Data integrity — file written post-failover readable ─────────────
echo ""
echo "[T6] Data integrity"
# Write a test file on the new Active (former Standby) and verify it.
# Use `echo | sudo tee` for the write: "echo ... > file" via bash -c has the
# redirect interpreted by the remote nixos shell (not sudo), so the file open
# runs as nixos and fails with EACCES on the root-owned XFS mount. Piping
# through sudo tee lets tee (running as root) open the file instead.
TEST_FILE="${XFS_MOUNT}/.acceptance-test-$$"
TEST_CONTENT="ha-acceptance-test-$(date +%s)"
echo "${TEST_CONTENT}" | ssh -i ~/.ssh/id_ed25519 -o StrictHostKeyChecking=no -o ConnectTimeout=5 "${HA_USER}@${STANDBY_IP}" sudo tee "${TEST_FILE}" > /dev/null 2>/dev/null || true
READBACK=$(ns cat "${TEST_FILE}" 2>/dev/null || echo "")
if [[ "$READBACK" == "$TEST_CONTENT" ]]; then
pass "test file written and read back correctly on $STANDBY_NODE"
else
fail "data integrity check failed (wrote: '$TEST_CONTENT', read: '$READBACK')"
fi
ns rm -f "${TEST_FILE}" 2>/dev/null || true
# ── T7: Node rejoin — un-standby original Active, verify cluster is healthy ─
echo ""
echo "[T7] Node rejoin"
na "crm_standby -N '${ACTIVE_CRMD_NAME}' -v off" 2>/dev/null || true
na "crm_resource --cleanup" 2>/dev/null || true
sleep 5
if na "corosync-quorumtool -s 2>/dev/null | grep -q 'Quorate:.*Yes'"; then
pass "$ACTIVE_NODE rejoined — cluster has quorum"
else
fail "$ACTIVE_NODE did not rejoin with quorum"
fi
DRBD_ROLE_AFTER=$(na "drbdadm role ha-data" 2>/dev/null || echo "unknown")
if echo "$DRBD_ROLE_AFTER" | grep -q "Secondary"; then
pass "$ACTIVE_NODE is DRBD Secondary after rejoin ($DRBD_ROLE_AFTER)"
else
fail "unexpected DRBD role on $ACTIVE_NODE after rejoin: $DRBD_ROLE_AFTER"
fi
# ── Summary ───────────────────────────────────────────────────────────────
echo ""
echo "════════════════════════════════════════════════════"
echo " Results: ${PASS} PASS, ${FAIL} FAIL"
echo "════════════════════════════════════════════════════"
for r in "${RESULTS[@]}"; do echo " $r"; done
echo ""
if [[ "$FAIL" -eq 0 ]]; then
echo "ALL PASS — cluster is production-ready."
exit 0
else
echo "SOME TESTS FAILED — investigate before deploying."
exit 1
fi