merchant: landing-stats + helpers; demo instance note

scripts/taler-merchant/ensure_merchant_helpers.sh

@@ -0,0 +1,100 @@
+#!/bin/bash
+# Ensure merchant helper processes are running (no systemd).
+# Prefer run as taler-merchant-httpd; root may use runuser.
+#
+# Usage:
+#   ensure_merchant_helpers.sh
+#   (as root) ensure_merchant_helpers.sh   # re-exec as taler-merchant-httpd
+set -euo pipefail
+
+CONF="${TALER_MERCHANT_CONFIG:-/etc/taler-merchant/taler-merchant.conf}"
+LOG_DIR="${TALER_MERCHANT_LOG_DIR:-/var/log/taler-merchant}"
+
+# As root: start wirewatch supervisor (needs root for runuser), then re-exec as httpd.
+if [ "$(id -un)" = "root" ]; then
+  mkdir -p "$LOG_DIR"
+  if [ -x /usr/local/bin/taler-merchant-wirewatch-supervise.sh ]; then
+    if ! ps -eo args= 2>/dev/null | grep -q 'taler-merchant-wirewatch-supervise\.sh'; then
+      echo "start: taler-merchant-wirewatch-supervise"
+      nohup /usr/local/bin/taler-merchant-wirewatch-supervise.sh \
+        >>"$LOG_DIR/wirewatch-supervise.nohup" 2>&1 </dev/null &
+      disown 2>/dev/null || true
+    else
+      echo "already: taler-merchant-wirewatch-supervise"
+    fi
+  fi
+  exec runuser -u taler-merchant-httpd -- "$0" "$@"
+fi
+
+if [ "$(id -un)" != "taler-merchant-httpd" ]; then
+  echo "run as taler-merchant-httpd or root" >&2
+  exit 1
+fi
+
+mkdir -p "$LOG_DIR"
+chmod 755 "$LOG_DIR" 2>/dev/null || true
+
+# Linux COMM is 15 chars — do not use pgrep -x for taler-merchant-wirewatch etc.
+is_running() {
+  local bin="$1"
+  local base
+  base=$(basename "$bin")
+  ps -u "$(id -un)" -o args= 2>/dev/null | grep -qE "(^|/)[${base:0:1}]${base:1}( |$)" \
+    || pgrep -u "$(id -un)" -f "(^|/)(${base})( |$)" >/dev/null 2>&1
+}
+
+start_one() {
+  local name="$1"
+  local bin="$2"
+  shift 2
+  if is_running "$bin"; then
+    echo "already: $name"
+    return 0
+  fi
+  echo "start: $name"
+  nohup "$bin" "$@" >>"$LOG_DIR/${name}.log" 2>&1 </dev/null &
+  disown 2>/dev/null || true
+  local i
+  for i in 1 2 3 4 5 6; do
+    sleep 0.4
+    if is_running "$bin"; then
+      echo "  ok: $name"
+      return 0
+    fi
+  done
+  echo "  FAIL: $name did not stay up (see $LOG_DIR/${name}.log)" >&2
+  tail -20 "$LOG_DIR/${name}.log" 2>/dev/null || true
+  return 1
+}
+
+ec=0
+# Helpers needed for settlement / ops (not only httpd).
+start_one taler-merchant-webhook /usr/bin/taler-merchant-webhook || ec=1
+start_one taler-merchant-kyccheck /usr/bin/taler-merchant-kyccheck || ec=1
+# Prefer already-running supervisor (started as root above); else bare wirewatch.
+if ps -eo args= 2>/dev/null | grep -q 'taler-merchant-wirewatch-supervise\.sh'; then
+  echo "already: taler-merchant-wirewatch (via supervise)"
+elif is_running /usr/bin/taler-merchant-wirewatch; then
+  echo "already: taler-merchant-wirewatch"
+else
+  start_one taler-merchant-wirewatch /usr/bin/taler-merchant-wirewatch \
+    -c "$CONF" -L INFO || ec=1
+fi
+start_one taler-merchant-depositcheck /usr/bin/taler-merchant-depositcheck || ec=1
+start_one taler-merchant-exchangekeyupdate /usr/bin/taler-merchant-exchangekeyupdate || ec=1
+start_one taler-merchant-reconciliation /usr/bin/taler-merchant-reconciliation || ec=1
+
+if ! is_running taler-merchant-httpd; then
+  echo "start: taler-merchant-httpd"
+  nohup /usr/bin/taler-merchant-httpd --log=info \
+    >>"$LOG_DIR/taler-merchant-httpd-$(date +%Y-%m-%d).log" 2>&1 </dev/null &
+  disown 2>/dev/null || true
+  sleep 1
+  is_running taler-merchant-httpd || ec=1
+fi
+
+echo "--- live merchant ---"
+ps -eo pid,user,stat,etime,args 2>/dev/null \
+  | grep taler-merchant | grep -vE 'grep| Z |ensure_merchant' || true
+
+exit "$ec"