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Add simple "clickhouse-install" tool

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This commit is contained in:
Alexey Milovidov 2020-08-08 21:38:34 +03:00
parent 0f79eb3cc5
commit d9db0a3442
15 changed files with 538 additions and 17 deletions
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1
base/CMakeLists.txt
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@ -7,6 +7,7 @@ add_subdirectory (daemon)
add_subdirectory (loggers)
add_subdirectory (pcg-random)
add_subdirectory (widechar_width)
add_subdirectory (readpassphrase)
if (USE_MYSQL)
add_subdirectory (mysqlxx)

1
programs/client/readpassphrase/CMakeLists.txt → base/readpassphrase/CMakeLists.txt
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@ -5,3 +5,4 @@ add_library(readpassphrase readpassphrase.c)
set_target_properties(readpassphrase PROPERTIES LINKER_LANGUAGE C)
target_compile_options(readpassphrase PRIVATE -Wno-unused-result -Wno-reserved-id-macro)
target_include_directories(readpassphrase PUBLIC .)

4
programs/client/readpassphrase/readpassphrase.c → base/readpassphrase/readpassphrase.c
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@ -23,7 +23,9 @@
/* OPENBSD ORIGINAL: lib/libc/gen/readpassphrase.c */
#include "includes.h"
#ifndef _PATH_TTY
#define _PATH_TTY "/dev/tty"
#endif
#include <termios.h>
#include <signal.h>

0
programs/client/readpassphrase/readpassphrase.h → base/readpassphrase/readpassphrase.h
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0
programs/client/readpassphrase/ya.make → base/readpassphrase/ya.make
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1
base/ya.make
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@ -4,4 +4,5 @@ RECURSE(
loggers
pcg-random
widechar_width
readpassphrase
)

9
programs/CMakeLists.txt
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@ -17,6 +17,7 @@ option (ENABLE_CLICKHOUSE_COPIER "Enable clickhouse-copier" ${ENABLE_CLICKHOUSE_
option (ENABLE_CLICKHOUSE_FORMAT "Enable clickhouse-format" ${ENABLE_CLICKHOUSE_ALL})
option (ENABLE_CLICKHOUSE_OBFUSCATOR "Enable clickhouse-obfuscator" ${ENABLE_CLICKHOUSE_ALL})
option (ENABLE_CLICKHOUSE_ODBC_BRIDGE "Enable clickhouse-odbc-bridge" ${ENABLE_CLICKHOUSE_ALL})
option (ENABLE_CLICKHOUSE_INSTALL "Enable clickhouse-install" ${ENABLE_CLICKHOUSE_ALL})
if(NOT (MAKE_STATIC_LIBRARIES OR SPLIT_SHARED_LIBRARIES))
set(CLICKHOUSE_ONE_SHARED 1)
@ -84,6 +85,7 @@ add_subdirectory (compressor)
add_subdirectory (copier)
add_subdirectory (format)
add_subdirectory (obfuscator)
add_subdirectory (install)
if (ENABLE_CLICKHOUSE_ODBC_BRIDGE)
add_subdirectory (odbc-bridge)
@ -142,6 +144,9 @@ else ()
if (ENABLE_CLICKHOUSE_OBFUSCATOR)
clickhouse_target_link_split_lib(clickhouse obfuscator)
endif ()
if (ENABLE_CLICKHOUSE_INSTALL)
clickhouse_target_link_split_lib(clickhouse install)
endif ()
set (CLICKHOUSE_BUNDLE)
if (ENABLE_CLICKHOUSE_SERVER)
@ -202,10 +207,6 @@ else ()
endif()
endif ()
if (TARGET clickhouse-server AND TARGET copy-headers)
add_dependencies(clickhouse-server copy-headers)
endif ()
if (ENABLE_TESTS AND USE_GTEST)
set (CLICKHOUSE_UNIT_TESTS_TARGETS unit_tests_libcommon unit_tests_dbms)
add_custom_target (clickhouse-tests ALL DEPENDS ${CLICKHOUSE_UNIT_TESTS_TARGETS})

1
programs/client/CMakeLists.txt
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@ -17,7 +17,6 @@ set (CLICKHOUSE_CLIENT_LINK
)
# Always use internal readpassphrase
add_subdirectory(readpassphrase)
list(APPEND CLICKHOUSE_CLIENT_LINK PRIVATE readpassphrase)
clickhouse_program_add(client)

2
programs/client/ConnectionParameters.cpp
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@ -9,7 +9,7 @@
#include <Common/Exception.h>
#include <common/setTerminalEcho.h>
#include <ext/scope_guard.h>
#include "readpassphrase/readpassphrase.h"
#include <readpassphrase.h>
namespace DB
{

9
programs/client/readpassphrase/includes.h
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@ -1,9 +0,0 @@
#pragma once
/* #undef HAVE_READPASSPHRASE */
#if !defined(HAVE_READPASSPHRASE)
# ifndef _PATH_TTY
# define _PATH_TTY "/dev/tty"
# endif
#endif

1
programs/config_tools.h.in
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@ -12,4 +12,5 @@
#cmakedefine01 ENABLE_CLICKHOUSE_COMPRESSOR
#cmakedefine01 ENABLE_CLICKHOUSE_FORMAT
#cmakedefine01 ENABLE_CLICKHOUSE_OBFUSCATOR
#cmakedefine01 ENABLE_CLICKHOUSE_INSTALL
#cmakedefine01 ENABLE_CLICKHOUSE_ODBC_BRIDGE

12
programs/install/CMakeLists.txt Normal file
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@ -0,0 +1,12 @@
set (CLICKHOUSE_INSTALL_SOURCES Install.cpp)
set (CLICKHOUSE_INSTALL_LINK
PRIVATE
boost::program_options
clickhouse_common_io
dbms
readpassphrase
)
clickhouse_program_add(install)

506
programs/install/Install.cpp Normal file
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@ -0,0 +1,506 @@
#include <iostream>
#include <filesystem>
#include <boost/program_options.hpp>
#include <sys/stat.h>
#if defined(__linux__)
#include <syscall.h>
#include <linux/capability.h>
#endif
#include <Common/Exception.h>
#include <Common/ShellCommand.h>
#include <Common/formatReadable.h>
#include <Common/Config/ConfigProcessor.h>
#include <Common/OpenSSLHelpers.h>
#include <Common/hex.h>
#include <common/getResource.h>
#include <IO/ReadBufferFromFileDescriptor.h>
#include <IO/WriteBufferFromFileDescriptor.h>
#include <IO/ReadBufferFromFile.h>
#include <IO/WriteBufferFromFile.h>
#include <IO/ReadBufferFromMemory.h>
#include <IO/copyData.h>
#include <IO/Operators.h>
#include <readpassphrase.h>
#include <Poco/Util/XMLConfiguration.h>
/** This tool can be used to install ClickHouse without a deb/rpm/tgz package, having only "clickhouse" binary.
* The following steps are performed:
*
* - copying the binary to binary directory (/usr/bin).
* - creation of symlinks for tools.
* - creation of clickhouse user and group.
* - creation of config directory (/etc/clickhouse-server).
* - creation of default configuration files.
* - creation of a directory for logs (/var/log/clickhouse-server).
* - creation of a data directory if not exists.
* - setting a password for default user.
* - choose an option to listen connections.
* - changing the ownership and mode of the directories.
* - setting capabilities for binary.
* - setting ulimits for the user.
*
* It does not install clickhouse-odbc-bridge.
*/
namespace DB
{
namespace ErrorCodes
{
extern const int FILE_DOESNT_EXIST;
extern const int CANNOT_OPEN_FILE;
extern const int SYSTEM_ERROR;
extern const int NOT_ENOUGH_SPACE;
}
void executeScript(const std::string & command)
{
auto sh = ShellCommand::execute(command);
WriteBufferFromFileDescriptor stdout(STDOUT_FILENO);
WriteBufferFromFileDescriptor stderr(STDERR_FILENO);
copyData(sh->out, stdout);
copyData(sh->err, stderr);
sh->tryWait();
}
bool ask(std::string question)
{
while (true)
{
std::string answer;
std::cout << question;
std::getline(std::cin, answer);
if (!std::cin.good())
return false;
if (answer.empty() || answer == "n" || answer == "N")
return false;
if (answer == "y" || answer == "Y")
return true;
}
}
}
int mainEntryClickHouseInstall(int argc, char ** argv)
{
using namespace DB;
namespace po = boost::program_options;
namespace fs = std::filesystem;
po::options_description desc;
desc.add_options()
("help,h", "produce help message")
("prefix", po::value<std::string>()->default_value(""), "prefix for all paths")
("binary-path", po::value<std::string>()->default_value("/usr/bin"), "where to install binaries")
("config-path", po::value<std::string>()->default_value("/etc/clickhouse-server"), "where to install configs")
("log-path", po::value<std::string>()->default_value("/var/log/clickhouse-server"), "where to create log directory")
("data-path", po::value<std::string>()->default_value("/var/lib/clickhouse"), "directory for data")
("user", po::value<std::string>()->default_value("clickhouse"), "clickhouse user to create")
("group", po::value<std::string>()->default_value("clickhouse"), "clickhouse group to create")
;
po::variables_map options;
po::store(po::parse_command_line(argc, argv, desc), options);
if (options.count("help"))
{
std::cout << "Usage: "
<< (getuid() == 0 ? "" : "sudo ")
<< argv[0]
<< " install [options]\n";
std::cout << desc << '\n';
return 1;
}
try
{
/// We need to copy binary to the binary directory.
/// The binary is currently run. We need to obtain its path from procfs.
fs::path binary_self_path = "/proc/self/exe";
if (!fs::exists(binary_self_path))
throw Exception(ErrorCodes::FILE_DOESNT_EXIST, "Cannot obtain path to the binary from {}, file doesn't exist",
binary_self_path.string());
/// Copy binary to the destination directory.
size_t binary_size = fs::file_size(binary_self_path);
fs::path prefix = fs::path(options["prefix"].as<std::string>());
fs::path bin_dir = prefix / fs::path(options["binary-path"].as<std::string>());
size_t available_space = fs::space(bin_dir).available;
if (available_space < binary_size)
throw Exception(ErrorCodes::NOT_ENOUGH_SPACE, "Not enough space for clickhouse binary in {}, required {}, available {}.",
bin_dir.string(), ReadableSize(binary_size), ReadableSize(available_space));
fs::path main_bin_path = bin_dir / "clickhouse";
fs::path main_bin_tmp_path = bin_dir / "clickhouse.new";
fs::path main_bin_old_path = bin_dir / "clickhouse.old";
fmt::print("Copying ClickHouse binary to {}\n", main_bin_tmp_path.string());
try
{
ReadBufferFromFile in(binary_self_path.string());
WriteBufferFromFile out(main_bin_tmp_path.string());
copyData(in, out);
out.sync();
if (0 != fchmod(out.getFD(), S_IRUSR | S_IRGRP | S_IROTH | S_IXUSR | S_IXGRP | S_IXOTH))
throwFromErrno(fmt::format("Cannot chmod {}", main_bin_tmp_path.string()), ErrorCodes::SYSTEM_ERROR);
out.finalize();
}
catch (const Exception & e)
{
if (e.code() == ErrorCodes::CANNOT_OPEN_FILE && geteuid() != 0)
std::cerr << "Install must be run as root: sudo ./clickhouse install";
throw;
}
if (fs::exists(main_bin_path))
{
fmt::print("{} already exists, will rename existing binary to {} and put the new binary in place\n",
main_bin_path.string(), main_bin_old_path.string());
/// There is file exchange operation in Linux but it's not portable.
fs::rename(main_bin_path, main_bin_old_path);
}
fmt::print("Renaming {} to {}.\n", main_bin_tmp_path.string(), main_bin_path.string());
fs::rename(main_bin_tmp_path, main_bin_path);
/// Create symlinks.
std::initializer_list<const char *> tools
{
"clickhouse-server",
"clickhouse-client",
"clickhouse-local",
"clickhouse-benchmark",
"clickhouse-copier",
"clickhouse-obfuscator",
"clickhouse-compressor",
"clickhouse-format",
"clickhouse-extract-from-config"
};
for (const auto & tool : tools)
{
bool need_to_create = true;
fs::path symlink_path = bin_dir / tool;
if (fs::exists(symlink_path))
{
bool is_symlink = fs::is_symlink(symlink_path);
fs::path points_to;
if (is_symlink)
points_to = fs::absolute(fs::read_symlink(symlink_path));
if (is_symlink && points_to == main_bin_path)
{
need_to_create = false;
}
else
{
if (!is_symlink)
{
fs::path rename_path = symlink_path.replace_extension(".old");
fmt::print("File {} already exists but it's not a symlink. Will rename to {}.\n",
symlink_path.string(), rename_path.string());
fs::rename(symlink_path, rename_path);
}
else if (points_to != main_bin_path)
{
fmt::print("Symlink {} already exists but it points to {}. Will replace the old symlink to {}.\n",
symlink_path.string(), points_to.string(), main_bin_path.string());
fs::remove(symlink_path);
}
}
}
if (need_to_create)
{
fmt::print("Creating symlink {} to {}.\n", symlink_path.string(), main_bin_path.string());
fs::create_symlink(main_bin_path, symlink_path);
}
}
/// Creation of clickhouse user and group.
std::string user = options["user"].as<std::string>();
std::string group = options["group"].as<std::string>();
if (!group.empty())
{
{
fmt::print("Creating clickhouse group if it does not exist.\n");
std::string command = fmt::format("groupadd -r {}", group);
fmt::print(" {}\n", command);
executeScript(command);
}
}
else
fmt::print("Will not create clickhouse group");
if (!user.empty())
{
fmt::print("Creating clickhouse user if it does not exist.\n");
std::string command = group.empty()
? fmt::format("useradd --system --shell /bin/false --home-dir /nonexistent --user-group {}", user)
: fmt::format("useradd --system --shell /bin/false --home-dir /nonexistent -g {} {}", group, user);
fmt::print(" {}\n", command);
executeScript(command);
/// Setting ulimits.
try
{
fs::path ulimits_dir = "/etc/security/limits.d";
fs::path ulimits_file = ulimits_dir / fmt::format("{}.conf", user);
fmt::print("Will set ulimits for {} user in {}.\n", user, ulimits_file.string());
std::string ulimits_content = fmt::format(
"{0}\tsoft\tnofile\t262144\n"
"{0}\thard\tnofile\t262144\n", user);
fs::create_directories(ulimits_dir);
WriteBufferFromFile out(ulimits_file.string());
out.write(ulimits_content.data(), ulimits_content.size());
out.sync();
out.finalize();
}
catch (...)
{
std::cerr << "Cannot set ulimits: " << getCurrentExceptionMessage(false) << "\n";
}
/// TODO Set ulimits on Mac OS X
}
else
fmt::print("Will not create clickhouse user.\n");
/// Creating configuration files and directories.
fs::path config_dir = prefix / options["config-path"].as<std::string>();
if (!fs::exists(config_dir))
{
fmt::print("Creating config directory {}.\n", config_dir.string());
fs::create_directories(config_dir);
}
fs::path main_config_file = config_dir / "config.xml";
fs::path users_config_file = config_dir / "users.xml";
fs::path config_d = config_dir / "config.d";
fs::path users_d = config_dir / "users.d";
std::string log_path = prefix / options["log-path"].as<std::string>();
std::string data_path = prefix / options["data-path"].as<std::string>();
bool has_password_for_default_user = false;
if (!fs::exists(main_config_file))
{
fmt::print("Creating config directory {} that is used for tweaks of main server configuration.\n", config_d.string());
fs::create_directory(config_d);
fmt::print("Creating config directory {} that is used for tweaks of users configuration.\n", users_d.string());
fs::create_directory(users_d);
std::string_view main_config_content = getResource("config.xml");
if (main_config_content.empty())
{
fmt::print("There is no default config.xml, you have to download it and place to {}.\n", main_config_file.string());
}
else
{
WriteBufferFromFile out(main_config_file.string());
out.write(main_config_content.data(), main_config_content.size());
out.sync();
out.finalize();
}
std::string_view users_config_content = getResource("users.xml");
if (users_config_content.empty())
{
fmt::print("There is no default users.xml, you have to download it and place to {}.\n", users_config_file.string());
}
else
{
WriteBufferFromFile out(users_config_file.string());
out.write(users_config_content.data(), users_config_content.size());
out.sync();
out.finalize();
}
/// TODO chmod configs?
}
else
{
{
fmt::print("Config file {} already exists, will keep it and extract path info from it.\n", main_config_file.string());
ConfigProcessor processor(main_config_file.string(), /* throw_on_bad_incl = */ false, /* log_to_console = */ false);
ConfigurationPtr configuration(new Poco::Util::XMLConfiguration(processor.processConfig()));
if (configuration->has("path"))
{
data_path = configuration->getString("path");
fmt::print("{} has {} as data path.\n", main_config_file.string(), data_path);
}
if (configuration->has("logger.log"))
{
log_path = fs::path(configuration->getString("logger.log")).remove_filename();
fmt::print("{} has {} as log path.\n", main_config_file.string(), log_path);
}
}
/// Check if password for default user already specified.
if (fs::exists(users_config_file))
{
ConfigProcessor processor(users_config_file.string(), /* throw_on_bad_incl = */ false, /* log_to_console = */ false);
ConfigurationPtr configuration(new Poco::Util::XMLConfiguration(processor.processConfig()));
if (!configuration->getString("users.default.password", "").empty()
|| configuration->getString("users.default.password_sha256_hex", "").empty()
|| configuration->getString("users.default.password_double_sha1_hex", "").empty())
{
has_password_for_default_user = true;
}
}
}
/// Create directories for data and log.
if (fs::exists(log_path))
{
fmt::print("Log directory {} already exists.\n", log_path);
}
else
{
fmt::print("Creating log directory {}.\n", log_path);
fs::create_directories(log_path);
}
if (fs::exists(data_path))
{
fmt::print("Data directory {} already exists.\n", data_path);
}
else
{
fmt::print("Creating data directory {}.\n", data_path);
fs::create_directories(data_path);
}
/// TODO chmod dirs
/// Set up password for default user.
bool stdin_is_a_tty = isatty(STDIN_FILENO);
bool stdout_is_a_tty = isatty(STDOUT_FILENO);
bool is_interactive = stdin_is_a_tty && stdout_is_a_tty;
if (has_password_for_default_user)
{
fmt::print("Password for default user is already specified. To remind or reset, see {} and {}.\n",
users_config_file.string(), users_d.string());
}
else if (!is_interactive)
{
fmt::print("Password for default user is empty string. See {} and {} to change it.\n",
users_config_file.string(), users_d.string());
}
else
{
char buf[1000] = {};
std::string password;
if (auto * result = readpassphrase("Enter password for default user: ", buf, sizeof(buf), 0))
password = result;
if (!password.empty())
{
std::string password_file = users_d / "default-password.xml";
WriteBufferFromFile out(password_file);
#if USE_SSL
std::vector<uint8_t> hash;
hash.resize(32);
encodeSHA256(password, hash.data());
std::string hash_hex;
hash_hex.resize(64);
for (size_t i = 0; i < 32; ++i)
writeHexByteLowercase(hash[i], &hash_hex[2 * i]);
out << "<yandex>\n"
" <users>\n"
" <default>\n"
" <password_sha256_hex>" << hash_hex << "</password_sha256_hex>\n"
" </default>\n"
" </users>\n"
"</yandex>\n";
out.sync();
out.finalize();
fmt::print("Password for default user is saved in file {}.\n", password_file);
#else
out << "<yandex>\n"
" <users>\n"
" <default>\n"
" <password><![CDATA[" << password << "]]></password>\n"
" </default>\n"
" </users>\n"
"</yandex>\n";
out.sync();
out.finalize();
fmt::print("Password for default user is saved in plaintext in file {}.\n", password_file);
#endif
has_password_for_default_user = true;
}
else
fmt::print("Password for default user is empty string. See {} and {} to change it.\n",
users_config_file.string(), users_d.string());
}
/// Set capabilities for the binary.
#if defined(__linux__)
fmt::print("Setting capabilities for clickhouse binary. This is optional.\n");
std::string command = fmt::format("command setcap && setcap 'cap_net_admin,cap_ipc_lock,cap_sys_nice+ep' {}", main_bin_path.string());
fmt::print(" {}\n", command);
executeScript(command);
#endif
/// If password was set, ask for open for connections.
if (is_interactive && has_password_for_default_user)
{
if (ask("Allow server to accept connections from the network (default is localhost only), [y/N]: "))
{
std::string listen_file = config_d / "listen.xml";
WriteBufferFromFile out(listen_file);
out << "<yandex>\n"
" <listen_host>::</listen_host>\n"
"</yandex>\n";
out.sync();
out.finalize();
fmt::print("The choice is saved in file {}.\n", listen_file);
}
}
fmt::print("\nClickHouse has been successfully installed.\n");
}
catch (...)
{
std::cerr << getCurrentExceptionMessage(false);
return getCurrentExceptionCode();
}
return 0;
}

6
programs/main.cpp
View File

@ -46,6 +46,9 @@ int mainEntryClickHouseClusterCopier(int argc, char ** argv);
#if ENABLE_CLICKHOUSE_OBFUSCATOR
int mainEntryClickHouseObfuscator(int argc, char ** argv);
#endif
#if ENABLE_CLICKHOUSE_INSTALL
int mainEntryClickHouseInstall(int argc, char ** argv);
#endif
namespace
@ -84,6 +87,9 @@ std::pair<const char *, MainFunc> clickhouse_applications[] =
#if ENABLE_CLICKHOUSE_OBFUSCATOR
{"obfuscator", mainEntryClickHouseObfuscator},
#endif
#if ENABLE_CLICKHOUSE_INSTALL
{"install", mainEntryClickHouseInstall},
#endif
};

2
programs/ya.make
View File

@ -9,7 +9,7 @@ CFLAGS(
PEERDIR(
clickhouse/base/daemon
clickhouse/base/loggers
clickhouse/programs/client/readpassphrase
clickhouse/base/readpassphrase
clickhouse/src
)