feat(docker): 初始化项目并配置定时备份 PostgreSQL 数据库示例

run-cron-tasks.sh

@@ -0,0 +1,69 @@
+#!/bin/sh
+set -u
+
+CRON_TASKS_DIR="${CRON_TASKS_DIR:-/docker-cron.d}"
+STDOUT_FD="/proc/1/fd/1"
+STDERR_FD="/proc/1/fd/2"
+
+readonly CRON_TASKS_DIR STDOUT_FD STDERR_FD
+
+log_info() {
+  printf '%s\n' "run-cron-tasks: $*"
+}
+
+log_error() {
+  printf '%s\n' "run-cron-tasks: $*" >&2
+}
+
+if [ ! -d "$CRON_TASKS_DIR" ]; then
+  log_info "tasks directory $CRON_TASKS_DIR not found; skipping"
+  exit 0
+fi
+
+run_started_at=$(date -u '+%Y-%m-%dT%H:%M:%SZ')
+log_info "===== cron run started $run_started_at ====="
+
+set -- "$CRON_TASKS_DIR"/*
+if [ "$1" = "$CRON_TASKS_DIR/*" ]; then
+  log_info "no task scripts found in $CRON_TASKS_DIR"
+  run_finished_at=$(date -u '+%Y-%m-%dT%H:%M:%SZ')
+  log_info "===== cron run finished $run_finished_at (exit 0) ====="
+  exit 0
+fi
+
+max_rc=0
+for task in "$@"; do
+  if [ ! -f "$task" ]; then
+    log_info "skipping non-regular entry $task"
+    continue
+  fi
+
+  task_name=$(basename "$task")
+  log_info "starting task $task_name"
+
+  if [ ! -x "$task" ]; then
+    if ! chmod +x "$task" 2>>"$STDERR_FD"; then
+      log_error "failed to chmod +x $task_name"
+      if [ "$max_rc" -lt 1 ]; then
+        max_rc=1
+      fi
+      continue
+    fi
+  fi
+
+  if "$task" >>"$STDOUT_FD" 2>>"$STDERR_FD"; then
+    rc=0
+    log_info "task $task_name completed successfully"
+  else
+    rc=$?
+    log_error "task $task_name exited with status $rc"
+  fi
+
+  if [ "$rc" -gt "$max_rc" ]; then
+    max_rc=$rc
+  fi
+done
+
+run_finished_at=$(date -u '+%Y-%m-%dT%H:%M:%SZ')
+log_info "===== cron run finished $run_finished_at (exit $max_rc) ====="
+exit "$max_rc"