1 files changed, 124 insertions, 0 deletions
diff --git a/src/tools/rbd_mirror/main.cc b/src/tools/rbd_mirror/main.cc
new file mode 100644
index 000000000..85e95e6b6
--- /dev/null
+++ b/src/tools/rbd_mirror/main.cc
@@ -0,0 +1,124 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "common/ceph_argparse.h"
+#include "common/config.h"
+#include "common/debug.h"
+#include "common/errno.h"
+#include "common/perf_counters.h"
+#include "global/global_init.h"
+#include "global/signal_handler.h"
+#include "Mirror.h"
+#include "Types.h"
+
+#include <vector>
+
+rbd::mirror::Mirror *mirror = nullptr;
+PerfCounters *g_journal_perf_counters = nullptr;
+PerfCounters *g_snapshot_perf_counters = nullptr;
+
+void usage() {
+  std::cout << "usage: rbd-mirror [options...]" << std::endl;
+  std::cout << "options:\n";
+  std::cout << "  -m monaddress[:port]      connect to specified monitor\n";
+  std::cout << "  --keyring=<path>          path to keyring for local cluster\n";
+  std::cout << "  --log-file=<logfile>       file to log debug output\n";
+  std::cout << "  --debug-rbd-mirror=<log-level>/<memory-level>  set rbd-mirror debug level\n";
+  generic_server_usage();
+}
+
+static void handle_signal(int signum)
+{
+  if (mirror)
+    mirror->handle_signal(signum);
+}
+
+int main(int argc, const char **argv)
+{
+  auto args = argv_to_vec(argc, argv);
+  if (args.empty()) {
+    std::cerr << argv[0] << ": -h or --help for usage" << std::endl;
+    exit(1);
+  }
+  if (ceph_argparse_need_usage(args)) {
+    usage();
+    exit(0);
+  }
+
+  auto cct = global_init(nullptr, args, CEPH_ENTITY_TYPE_CLIENT,
+			 CODE_ENVIRONMENT_DAEMON,
+			 CINIT_FLAG_UNPRIVILEGED_DAEMON_DEFAULTS);
+
+  if (g_conf()->daemonize) {
+    global_init_daemonize(g_ceph_context);
+  }
+
+  common_init_finish(g_ceph_context);
+
+  init_async_signal_handler();
+  register_async_signal_handler(SIGHUP, handle_signal);
+  register_async_signal_handler_oneshot(SIGINT, handle_signal);
+  register_async_signal_handler_oneshot(SIGTERM, handle_signal);
+
+  auto cmd_args = argv_to_vec(argc, argv);
+
+  // disable unnecessary librbd cache
+  g_ceph_context->_conf.set_val_or_die("rbd_cache", "false");
+
+  auto prio =
+      g_ceph_context->_conf.get_val<int64_t>("rbd_mirror_perf_stats_prio");
+  {
+    PerfCountersBuilder plb(g_ceph_context, "rbd_mirror_journal",
+                            rbd::mirror::l_rbd_mirror_journal_first,
+                            rbd::mirror::l_rbd_mirror_journal_last);
+    plb.add_u64_counter(rbd::mirror::l_rbd_mirror_journal_entries, "entries",
+                        "Number of entries replayed", nullptr, prio);
+    plb.add_u64_counter(rbd::mirror::l_rbd_mirror_journal_replay_bytes,
+                        "replay_bytes", "Total bytes replayed", nullptr, prio,
+                        unit_t(UNIT_BYTES));
+    plb.add_time_avg(rbd::mirror::l_rbd_mirror_journal_replay_latency,
+                     "replay_latency", "Replay latency", nullptr, prio);
+    g_journal_perf_counters = plb.create_perf_counters();
+  }
+  {
+    PerfCountersBuilder plb(
+        g_ceph_context, "rbd_mirror_snapshot",
+        rbd::mirror::l_rbd_mirror_snapshot_first,
+        rbd::mirror::l_rbd_mirror_snapshot_remote_timestamp);
+    plb.add_u64_counter(rbd::mirror::l_rbd_mirror_snapshot_snapshots,
+                        "snapshots", "Number of snapshots synced", nullptr,
+                        prio);
+    plb.add_time_avg(rbd::mirror::l_rbd_mirror_snapshot_sync_time, "sync_time",
+                     "Average sync time", nullptr, prio);
+    plb.add_u64_counter(rbd::mirror::l_rbd_mirror_snapshot_sync_bytes,
+                        "sync_bytes", "Total bytes synced", nullptr, prio,
+                        unit_t(UNIT_BYTES));
+    g_snapshot_perf_counters = plb.create_perf_counters();
+  }
+  g_ceph_context->get_perfcounters_collection()->add(g_journal_perf_counters);
+  g_ceph_context->get_perfcounters_collection()->add(g_snapshot_perf_counters);
+
+  mirror = new rbd::mirror::Mirror(g_ceph_context, cmd_args);
+  int r = mirror->init();
+  if (r < 0) {
+    std::cerr << "failed to initialize: " << cpp_strerror(r) << std::endl;
+    goto cleanup;
+  }
+
+  mirror->run();
+
+ cleanup:
+  unregister_async_signal_handler(SIGHUP, handle_signal);
+  unregister_async_signal_handler(SIGINT, handle_signal);
+  unregister_async_signal_handler(SIGTERM, handle_signal);
+  shutdown_async_signal_handler();
+
+  g_ceph_context->get_perfcounters_collection()->remove(g_journal_perf_counters);
+  g_ceph_context->get_perfcounters_collection()->remove(g_snapshot_perf_counters);
+
+  delete mirror;
+  delete g_journal_perf_counters;
+  delete g_snapshot_perf_counters;
+
+  return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}