ops: add restart_containers.sh and installer for daily cron with logging

install_daily_restart_cron.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+
+# Install a daily cron job to restart the docker-compose stack.
+# Non-interactive; idempotent update of user's crontab.
+# Usage:
+#   INTERVAL="15 3 * * *" ./install_daily_restart_cron.sh
+# Defaults to 03:15 daily if INTERVAL not provided.
+
+set -euo pipefail
+
+REPO_DIR="$(cd "$(dirname "$0")" && pwd)"
+SCRIPT_PATH="$REPO_DIR/restart_containers.sh"
+INTERVAL_CRON=${INTERVAL:-"15 3 * * *"}
+
+if [ ! -x "$SCRIPT_PATH" ]; then
+  echo "Making restart_containers.sh executable"
+  chmod +x "$SCRIPT_PATH"
+fi
+
+if ! command -v crontab >/dev/null 2>&1; then
+  echo "Error: crontab not found on this system."
+  exit 1
+fi
+
+# Prefer docker compose; fallback to docker-compose is handled inside the script
+
+# Compose file to use (default docker-compose.yml). Override via COMPOSE_FILE env
+COMPOSE_FILE_PATH=${COMPOSE_FILE:-docker-compose.yml}
+
+LOG_FILE="$REPO_DIR/logs/cron_restart.log"
+mkdir -p "$(dirname "$LOG_FILE")"
+
+# Build the cron line; ensure PATH for docker is available
+CRON_LINE="$INTERVAL_CRON PATH=/usr/local/bin:/usr/bin:/bin /bin/bash -lc 'COMPOSE_FILE=$COMPOSE_FILE_PATH "$SCRIPT_PATH" >> "$LOG_FILE" 2>&1'"
+
+# Install or update crontab entry
+EXISTING_CRON="$(mktemp)"
+trap 'rm -f "$EXISTING_CRON"' EXIT
+
+crontab -l > "$EXISTING_CRON" 2>/dev/null || true
+
+# Remove any previous lines referencing restart_containers.sh
+grep -v "$SCRIPT_PATH" "$EXISTING_CRON" > "$EXISTING_CRON.cleaned" || true
+mv "$EXISTING_CRON.cleaned" "$EXISTING_CRON"
+
+echo "$CRON_LINE" >> "$EXISTING_CRON"
+crontab "$EXISTING_CRON"
+
+echo "Installed cron entry: $CRON_LINE"
+echo "Logs will be written to: $LOG_FILE"
+
+

restart_containers.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+
+# Restart docker-compose stack (or selected services) and log output.
+# Usage:
+#   ./restart_containers.sh [service1 service2 ...]
+#
+# Env vars:
+#   COMPOSE_FILE: override compose file (default: docker-compose.yml)
+
+set -euo pipefail
+
+REPO_DIR="$(cd "$(dirname "$0")" && pwd)"
+LOG_DIR="$REPO_DIR/logs"
+mkdir -p "$LOG_DIR"
+
+timestamp() {
+  date +"%Y-%m-%d %H:%M:%S%z"
+}
+
+echo "[$(timestamp)] Starting restart_containers.sh" | tee -a "$LOG_DIR/restart.log"
+
+# Detect compose command
+detect_compose_cmd() {
+  if command -v docker >/dev/null 2>&1; then
+    if docker compose version >/dev/null 2>&1; then
+      echo "docker compose"
+      return 0
+    fi
+  fi
+  if command -v docker-compose >/dev/null 2>&1; then
+    echo "docker-compose"
+    return 0
+  fi
+  echo "[$(timestamp)] ERROR: Neither 'docker compose' nor 'docker-compose' found in PATH" | tee -a "$LOG_DIR/restart.log"
+  exit 1
+}
+
+COMPOSE_CMD=$(detect_compose_cmd)
+COMPOSE_FILE_PATH=${COMPOSE_FILE:-docker-compose.yml}
+
+if [ ! -f "$REPO_DIR/$COMPOSE_FILE_PATH" ]; then
+  echo "[$(timestamp)] ERROR: Compose file not found: $REPO_DIR/$COMPOSE_FILE_PATH" | tee -a "$LOG_DIR/restart.log"
+  exit 1
+fi
+
+cd "$REPO_DIR"
+
+SERVICES=("$@")
+
+if [ ${#SERVICES[@]} -eq 0 ]; then
+  echo "[$(timestamp)] Restarting full stack using $COMPOSE_FILE_PATH" | tee -a "$LOG_DIR/restart.log"
+  set +e
+  $COMPOSE_CMD -f "$COMPOSE_FILE_PATH" down >>"$LOG_DIR/restart.log" 2>&1
+  DOWN_STATUS=$?
+  set -e
+  echo "[$(timestamp)] docker compose down exit status: $DOWN_STATUS" | tee -a "$LOG_DIR/restart.log"
+  $COMPOSE_CMD -f "$COMPOSE_FILE_PATH" up -d >>"$LOG_DIR/restart.log" 2>&1
+  echo "[$(timestamp)] Stack brought up" | tee -a "$LOG_DIR/restart.log"
+else
+  echo "[$(timestamp)] Restarting services: ${SERVICES[*]} using $COMPOSE_FILE_PATH" | tee -a "$LOG_DIR/restart.log"
+  $COMPOSE_CMD -f "$COMPOSE_FILE_PATH" restart "${SERVICES[@]}" >>"$LOG_DIR/restart.log" 2>&1
+  echo "[$(timestamp)] Services restarted" | tee -a "$LOG_DIR/restart.log"
+fi
+
+echo "[$(timestamp)] Completed restart_containers.sh" | tee -a "$LOG_DIR/restart.log"
+
+