75 lines
2.3 KiB
Bash
Executable file
75 lines
2.3 KiB
Bash
Executable file
#!/bin/bash
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# Ensure exchange wire/db helper processes are running (no systemd).
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# Root inside taler-exchange container (or host if packages installed there).
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#
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# Usage:
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# ensure_exchange_helpers.sh
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# ENSURE_ONLY=1 ensure_exchange_helpers.sh # start missing, no health summary
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set -euo pipefail
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CONF="${TALER_EXCHANGE_CONFIG:-/etc/taler-exchange/taler-exchange.conf}"
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LOG_DIR="${TALER_EXCHANGE_LOG_DIR:-/var/log/taler-exchange}"
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if [ "$(id -u)" -ne 0 ]; then
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echo "root only" >&2
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exit 1
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fi
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mkdir -p "$LOG_DIR"
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chmod 755 "$LOG_DIR" 2>/dev/null || true
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# Live process under user. Note: Linux COMM is 15 chars — never use pgrep -x
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# for long names like taler-exchange-aggregator / taler-exchange-wirewatch.
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is_running() {
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local user="$1"
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local bin="$2"
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local base
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base=$(basename "$bin")
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# [t] trick avoids matching this grep/pgrep itself
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ps -u "$user" -o args= 2>/dev/null | grep -qE "(^|/)[${base:0:1}]${base:1}( |$)" \
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|| pgrep -u "$user" -f "(^|/)(${base})( |$)" >/dev/null 2>&1
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}
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# Start with nohup so SIGHUP from parent shell exit does not kill helpers.
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start_one() {
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local user="$1"
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local name="$2"
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local bin="$3"
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shift 3
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if is_running "$user" "$bin"; then
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echo "already: $name ($user)"
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return 0
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fi
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echo "start: $name as $user"
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# shellcheck disable=SC2086
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nohup runuser -u "$user" -- "$bin" "$@" >>"$LOG_DIR/${name}.log" 2>&1 </dev/null &
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disown 2>/dev/null || true
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local i
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for i in 1 2 3 4 5 6; do
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sleep 0.4
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if is_running "$user" "$bin"; then
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echo " ok: $name"
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return 0
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fi
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done
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echo " FAIL: $name did not stay up (see $LOG_DIR/${name}.log)" >&2
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tail -15 "$LOG_DIR/${name}.log" 2>/dev/null || true
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return 1
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}
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ec=0
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start_one taler-exchange-aggregator taler-exchange-aggregator \
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/usr/bin/taler-exchange-aggregator -c "$CONF" -L INFO || ec=1
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start_one taler-exchange-closer taler-exchange-closer \
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/usr/bin/taler-exchange-closer -c "$CONF" -L INFO || ec=1
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start_one taler-exchange-wire taler-exchange-wirewatch \
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/usr/bin/taler-exchange-wirewatch -c "$CONF" -L INFO || ec=1
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start_one taler-exchange-wire taler-exchange-transfer \
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/usr/bin/taler-exchange-transfer -c "$CONF" -L INFO || ec=1
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echo "--- live helpers ---"
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ps -eo pid,user,stat,etime,args 2>/dev/null \
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| grep -E 'taler-exchange-(aggregator|closer|wirewatch|transfer)' \
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| grep -vE 'grep| Z |ensure_exchange' || true
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exit "$ec"
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