| // Copyright (C) 2017 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.ericsson.gerrit.plugins.highavailability; |
| |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.CACHE_SECTION; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.CLEANUP_INTERVAL_KEY; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.CLUSTER_NAME_KEY; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.CONNECTION_TIMEOUT_KEY; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.DEFAULT_CLEANUP_INTERVAL; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.DEFAULT_CLUSTER_NAME; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.DEFAULT_MAX_TRIES; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.DEFAULT_RETRY_INTERVAL; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.DEFAULT_SHARED_DIRECTORY; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.DEFAULT_THREAD_POOL_SIZE; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.DEFAULT_TIMEOUT_MS; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.HTTP_SECTION; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.INDEX_SECTION; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.JGROUPS_SUBSECTION; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.MAIN_SECTION; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.MAX_TRIES_KEY; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.PASSWORD_KEY; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.PEER_INFO_SECTION; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.RETRY_INTERVAL_KEY; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.SHARED_DIRECTORY_KEY; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.SOCKET_TIMEOUT_KEY; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.STATIC_SUBSECTION; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.STRATEGY_KEY; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.THREAD_POOL_SIZE_KEY; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.URL_KEY; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.USER_KEY; |
| import static com.ericsson.gerrit.plugins.highavailability.Configuration.WEBSESSION_SECTION; |
| |
| import com.ericsson.gerrit.plugins.highavailability.Configuration.PeerInfoStrategy; |
| import com.google.common.base.Strings; |
| import com.google.gerrit.common.FileUtil; |
| import com.google.gerrit.extensions.annotations.PluginName; |
| import com.google.gerrit.pgm.init.api.ConsoleUI; |
| import com.google.gerrit.pgm.init.api.InitFlags; |
| import com.google.gerrit.pgm.init.api.InitStep; |
| import com.google.gerrit.server.config.SitePaths; |
| import com.google.inject.Inject; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.EnumSet; |
| import java.util.Objects; |
| import org.eclipse.jgit.storage.file.FileBasedConfig; |
| import org.eclipse.jgit.util.FS; |
| |
| public class Setup implements InitStep { |
| |
| private final ConsoleUI ui; |
| private final String pluginName; |
| private final InitFlags flags; |
| private final SitePaths site; |
| private final SetupLocalHAReplica setupLocalHAReplica; |
| |
| private FileBasedConfig config; |
| |
| @Inject |
| public Setup( |
| ConsoleUI ui, |
| @PluginName String pluginName, |
| InitFlags flags, |
| SitePaths site, |
| SetupLocalHAReplica setupLocalHAReplica) { |
| this.ui = ui; |
| this.pluginName = pluginName; |
| this.flags = flags; |
| this.site = site; |
| this.setupLocalHAReplica = setupLocalHAReplica; |
| } |
| |
| @Override |
| public void run() throws Exception { |
| ui.message("\n"); |
| ui.header("%s Plugin", pluginName); |
| |
| if (ui.yesno(true, "Configure %s", pluginName)) { |
| ui.header("Configuring %s", pluginName); |
| Path pluginConfigFile = site.etc_dir.resolve(pluginName + ".config"); |
| config = new FileBasedConfig(pluginConfigFile.toFile(), FS.DETECTED); |
| config.load(); |
| configureHttp(); |
| configureCacheSection(); |
| configureIndexSection(); |
| configureWebsessionsSection(); |
| if (!createHAReplicaSite(config)) { |
| configureMainSection(); |
| configurePeerInfoSection(); |
| config.save(); |
| } |
| flags.cfg.setBoolean("database", "h2", "autoServer", true); |
| } |
| } |
| |
| private void configureMainSection() { |
| ui.header("Main section"); |
| String sharedDirDefault = ui.isBatch() ? DEFAULT_SHARED_DIRECTORY : null; |
| String shared = |
| promptAndSetString( |
| "Shared directory", MAIN_SECTION, SHARED_DIRECTORY_KEY, sharedDirDefault); |
| if (!Strings.isNullOrEmpty(shared)) { |
| Path resolved = site.site_path.resolve(Paths.get(shared)); |
| FileUtil.mkdirsOrDie(resolved, "cannot create " + resolved); |
| } |
| } |
| |
| private void configurePeerInfoSection() { |
| ui.header("PeerInfo section"); |
| PeerInfoStrategy strategy = |
| ui.readEnum( |
| PeerInfoStrategy.JGROUPS, EnumSet.allOf(PeerInfoStrategy.class), "Peer info strategy"); |
| config.setEnum(PEER_INFO_SECTION, null, STRATEGY_KEY, strategy); |
| if (strategy == PeerInfoStrategy.STATIC) { |
| promptAndSetString("Peer URL", PEER_INFO_SECTION, STATIC_SUBSECTION, URL_KEY, null); |
| } else { |
| promptAndSetString( |
| "JGroups cluster name", |
| PEER_INFO_SECTION, |
| JGROUPS_SUBSECTION, |
| CLUSTER_NAME_KEY, |
| DEFAULT_CLUSTER_NAME); |
| } |
| } |
| |
| private void configureHttp() { |
| ui.header("Http section"); |
| promptAndSetString("User", HTTP_SECTION, USER_KEY, null); |
| promptAndSetString("Password", HTTP_SECTION, PASSWORD_KEY, null); |
| promptAndSetString( |
| "Max number of tries to forward to remote peer", |
| HTTP_SECTION, |
| MAX_TRIES_KEY, |
| str(DEFAULT_MAX_TRIES)); |
| promptAndSetString( |
| "Retry interval [ms]", HTTP_SECTION, RETRY_INTERVAL_KEY, str(DEFAULT_RETRY_INTERVAL)); |
| promptAndSetString( |
| "Connection timeout [ms]", HTTP_SECTION, CONNECTION_TIMEOUT_KEY, str(DEFAULT_TIMEOUT_MS)); |
| promptAndSetString( |
| "Socket timeout [ms]", HTTP_SECTION, SOCKET_TIMEOUT_KEY, str(DEFAULT_TIMEOUT_MS)); |
| } |
| |
| private void configureCacheSection() { |
| ui.header("Cache section"); |
| promptAndSetString( |
| "Cache thread pool size", |
| CACHE_SECTION, |
| THREAD_POOL_SIZE_KEY, |
| str(DEFAULT_THREAD_POOL_SIZE)); |
| } |
| |
| private void configureIndexSection() { |
| ui.header("Index section"); |
| promptAndSetString( |
| "Index thread pool size", |
| INDEX_SECTION, |
| THREAD_POOL_SIZE_KEY, |
| str(DEFAULT_THREAD_POOL_SIZE)); |
| } |
| |
| private void configureWebsessionsSection() { |
| ui.header("Websession section"); |
| promptAndSetString( |
| "Cleanup interval", WEBSESSION_SECTION, CLEANUP_INTERVAL_KEY, DEFAULT_CLEANUP_INTERVAL); |
| } |
| |
| private String promptAndSetString( |
| String title, String section, String name, String defaultValue) { |
| return promptAndSetString(title, section, null, name, defaultValue); |
| } |
| |
| private String promptAndSetString( |
| String title, String section, String subsection, String name, String defaultValue) { |
| String oldValue = Strings.emptyToNull(config.getString(section, subsection, name)); |
| String newValue = ui.readString(oldValue != null ? oldValue : defaultValue, title); |
| if (!Objects.equals(oldValue, newValue)) { |
| if (!Strings.isNullOrEmpty(newValue)) { |
| config.setString(section, subsection, name, newValue); |
| } else { |
| config.unset(section, subsection, name); |
| } |
| } |
| return newValue; |
| } |
| |
| private static String str(int n) { |
| return Integer.toString(n); |
| } |
| |
| private boolean createHAReplicaSite(FileBasedConfig pluginConfig) throws Exception { |
| ui.header("HA replica site setup"); |
| ui.message( |
| "It is possible to create a copy of the master site and configure both sites to run\n" |
| + "in HA mode as peers. This is possible when the directory where the copy will be\n" |
| + "created is accessible from this machine\n" |
| + "\n" |
| + "NOTE: This step is optional. If you want to create the other site manually, or\n" |
| + "if the other site needs to be created in a directory not accessible from this\n" |
| + "machine then please skip this step.\n"); |
| if (ui.yesno(true, "Create a HA replica site")) { |
| String replicaPath = ui.readString("ha/1", "Location of the HA replica"); |
| Path replica = site.site_path.resolve(Paths.get(replicaPath)); |
| if (replica.toFile().exists()) { |
| ui.message("%s already exists, exiting", replica); |
| return true; |
| } |
| config.save(); |
| setupLocalHAReplica.run(new SitePaths(replica), pluginConfig); |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public void postRun() {} |
| } |