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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "include/rados/librados.hpp"
#include "include/rbd/librbd.hpp"
#include "include/stringify.h"
#include "test/rbd_mirror/test_fixture.h"
#include "cls/rbd/cls_rbd_types.h"
#include "cls/rbd/cls_rbd_client.h"
#include "include/rbd_types.h"
#include "librbd/internal.h"
#include "librbd/ImageCtx.h"
#include "librbd/ImageState.h"
#include "librbd/Operations.h"
#include "librbd/Utils.h"
#include "librbd/api/Mirror.h"
#include "common/Cond.h"
#include "common/errno.h"
#include "common/ceph_mutex.h"
#include "tools/rbd_mirror/PoolWatcher.h"
#include "tools/rbd_mirror/Threads.h"
#include "tools/rbd_mirror/Types.h"
#include "tools/rbd_mirror/pool_watcher/Types.h"
#include "test/librados/test_cxx.h"
#include "gtest/gtest.h"
#include <boost/scope_exit.hpp>
#include <iostream>
#include <map>
#include <memory>
#include <set>
#include <vector>
using namespace std::chrono_literals;
using rbd::mirror::ImageId;
using rbd::mirror::ImageIds;
using rbd::mirror::PoolWatcher;
using rbd::mirror::PeerSpec;
using rbd::mirror::RadosRef;
using std::map;
using std::set;
using std::string;
void register_test_pool_watcher() {
}
class TestPoolWatcher : public ::rbd::mirror::TestFixture {
public:
TestPoolWatcher()
: m_pool_watcher_listener(this),
m_image_number(0), m_snap_number(0)
{
m_cluster = std::make_shared<librados::Rados>();
EXPECT_EQ("", connect_cluster_pp(*m_cluster));
}
void TearDown() override {
if (m_pool_watcher) {
C_SaferCond ctx;
m_pool_watcher->shut_down(&ctx);
EXPECT_EQ(0, ctx.wait());
}
m_cluster->wait_for_latest_osdmap();
for (auto& pool : m_pools) {
EXPECT_EQ(0, m_cluster->pool_delete(pool.c_str()));
}
TestFixture::TearDown();
}
struct PoolWatcherListener : public rbd::mirror::pool_watcher::Listener {
TestPoolWatcher *test;
ceph::condition_variable cond;
ImageIds image_ids;
explicit PoolWatcherListener(TestPoolWatcher *test) : test(test) {
}
void handle_update(const std::string &mirror_uuid,
ImageIds &&added_image_ids,
ImageIds &&removed_image_ids) override {
std::lock_guard locker{test->m_lock};
for (auto &image_id : removed_image_ids) {
image_ids.erase(image_id);
}
image_ids.insert(added_image_ids.begin(), added_image_ids.end());
cond.notify_all();
}
};
void create_pool(bool enable_mirroring, const PeerSpec &peer, string *name=nullptr) {
string pool_name = get_temp_pool_name("test-rbd-mirror-");
ASSERT_EQ(0, m_cluster->pool_create(pool_name.c_str()));
int64_t pool_id = m_cluster->pool_lookup(pool_name.c_str());
ASSERT_GE(pool_id, 0);
m_pools.insert(pool_name);
librados::IoCtx ioctx;
ASSERT_EQ(0, m_cluster->ioctx_create2(pool_id, ioctx));
ioctx.application_enable("rbd", true);
m_pool_watcher.reset(new PoolWatcher<>(m_threads, ioctx, "mirror uuid",
m_pool_watcher_listener));
if (enable_mirroring) {
ASSERT_EQ(0, librbd::api::Mirror<>::mode_set(ioctx,
RBD_MIRROR_MODE_POOL));
std::string uuid;
ASSERT_EQ(0, librbd::api::Mirror<>::peer_site_add(
ioctx, &uuid, RBD_MIRROR_PEER_DIRECTION_RX_TX, peer.cluster_name,
peer.client_name));
}
if (name != nullptr) {
*name = pool_name;
}
m_pool_watcher->init();
}
string get_image_id(librados::IoCtx *ioctx, const string &image_name) {
string obj = librbd::util::id_obj_name(image_name);
string id;
EXPECT_EQ(0, librbd::cls_client::get_id(ioctx, obj, &id));
return id;
}
void create_image(const string &pool_name, bool mirrored=true,
string *image_name=nullptr) {
uint64_t features = librbd::util::get_rbd_default_features(g_ceph_context);
string name = "image" + stringify(++m_image_number);
if (mirrored) {
features |= RBD_FEATURE_EXCLUSIVE_LOCK | RBD_FEATURE_JOURNALING;
}
librados::IoCtx ioctx;
ASSERT_EQ(0, m_cluster->ioctx_create(pool_name.c_str(), ioctx));
int order = 0;
ASSERT_EQ(0, librbd::create(ioctx, name.c_str(), 1 << 22, false,
features, &order, 0, 0));
if (mirrored) {
librbd::Image image;
librbd::RBD rbd;
rbd.open(ioctx, image, name.c_str());
image.mirror_image_enable2(RBD_MIRROR_IMAGE_MODE_JOURNAL);
librbd::mirror_image_info_t mirror_image_info;
ASSERT_EQ(0, image.mirror_image_get_info(&mirror_image_info,
sizeof(mirror_image_info)));
image.close();
m_mirrored_images.insert(ImageId(
mirror_image_info.global_id, get_image_id(&ioctx, name)));
}
if (image_name != nullptr)
*image_name = name;
}
void clone_image(const string &parent_pool_name,
const string &parent_image_name,
const string &clone_pool_name,
bool mirrored=true,
string *image_name=nullptr) {
librados::IoCtx pioctx, cioctx;
ASSERT_EQ(0, m_cluster->ioctx_create(parent_pool_name.c_str(), pioctx));
ASSERT_EQ(0, m_cluster->ioctx_create(clone_pool_name.c_str(), cioctx));
string snap_name = "snap" + stringify(++m_snap_number);
{
librbd::ImageCtx *ictx = new librbd::ImageCtx(parent_image_name.c_str(),
"", "", pioctx, false);
ictx->state->open(0);
librbd::NoOpProgressContext prog_ctx;
EXPECT_EQ(0, ictx->operations->snap_create(cls::rbd::UserSnapshotNamespace(),
snap_name, 0, prog_ctx));
EXPECT_EQ(0, ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(),
snap_name));
ictx->state->close();
}
uint64_t features = librbd::util::get_rbd_default_features(g_ceph_context);
string name = "clone" + stringify(++m_image_number);
if (mirrored) {
features |= RBD_FEATURE_EXCLUSIVE_LOCK | RBD_FEATURE_JOURNALING;
}
int order = 0;
librbd::clone(pioctx, parent_image_name.c_str(), snap_name.c_str(),
cioctx, name.c_str(), features, &order, 0, 0);
if (mirrored) {
librbd::Image image;
librbd::RBD rbd;
rbd.open(cioctx, image, name.c_str());
image.mirror_image_enable2(RBD_MIRROR_IMAGE_MODE_JOURNAL);
librbd::mirror_image_info_t mirror_image_info;
ASSERT_EQ(0, image.mirror_image_get_info(&mirror_image_info,
sizeof(mirror_image_info)));
image.close();
m_mirrored_images.insert(ImageId(
mirror_image_info.global_id, get_image_id(&cioctx, name)));
}
if (image_name != nullptr)
*image_name = name;
}
void check_images() {
std::unique_lock l{m_lock};
while (m_mirrored_images != m_pool_watcher_listener.image_ids) {
if (m_pool_watcher_listener.cond.wait_for(l, 10s) == std::cv_status::timeout) {
break;
}
}
ASSERT_EQ(m_mirrored_images, m_pool_watcher_listener.image_ids);
}
ceph::mutex m_lock = ceph::make_mutex("TestPoolWatcherLock");
RadosRef m_cluster;
PoolWatcherListener m_pool_watcher_listener;
std::unique_ptr<PoolWatcher<> > m_pool_watcher;
set<string> m_pools;
ImageIds m_mirrored_images;
uint64_t m_image_number;
uint64_t m_snap_number;
};
TEST_F(TestPoolWatcher, EmptyPool) {
string uuid1 = "00000000-0000-0000-0000-000000000001";
PeerSpec site1(uuid1, "site1", "mirror1");
create_pool(true, site1);
check_images();
}
TEST_F(TestPoolWatcher, ReplicatedPools) {
string uuid1 = "00000000-0000-0000-0000-000000000001";
PeerSpec site1(uuid1, "site1", "mirror1");
string first_pool, local_pool, last_pool;
create_pool(true, site1, &first_pool);
check_images();
create_image(first_pool);
check_images();
string parent_image, parent_image2;
create_image(first_pool, true, &parent_image);
check_images();
clone_image(first_pool, parent_image, first_pool);
check_images();
clone_image(first_pool, parent_image, first_pool, true, &parent_image2);
check_images();
create_image(first_pool, false);
check_images();
}
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