public override bool OnStart()
{
// Not sure what this should be. Hopefully storage over smb doesn't open a million connections
ServicePointManager.DefaultConnectionLimit = 12;
#region Load Config Settings
nodeName = RoleEnvironment.CurrentRoleInstance.Id;
string UseElasticLocalDataFolder = CloudConfigurationManager.GetSetting("UseElasticLocalDataFolder");
string javaInstaller = CloudConfigurationManager.GetSetting("JavaInstallerName");
string javaDownloadURL = CloudConfigurationManager.GetSetting("JavaDownloadURL");
string elasticsearchZip = CloudConfigurationManager.GetSetting("ElasticsearchZip");
string elasticsearchDownloadURL = CloudConfigurationManager.GetSetting("ElasticsearchDownloadURL");
string elasticsearchPluginContainer = CloudConfigurationManager.GetSetting("ElasticsearchPluginContainer");
string shareName = CloudConfigurationManager.GetSetting("ShareName"); //root path for es data
string shareDrive = CloudConfigurationManager.GetSetting("ShareDrive"); //Drive letter to map azure share
string endpointName = CloudConfigurationManager.GetSetting("EndpointName");
string archiveRoot = RoleEnvironment.GetLocalResource("ArchiveRoot").RootPath;
string logRoot = RoleEnvironment.GetLocalResource("LogRoot").RootPath;
string elasticDataRoot = RoleEnvironment.GetLocalResource("ElasticDataRoot").RootPath;
string elasticRoot = RoleEnvironment.GetLocalResource("ElasticRoot").RootPath;
string emulatorDataRoot = RoleEnvironment.GetLocalResource("EmulatorDataRoot").RootPath; // we need this cause we can't emulate shares
string roleRoot = Environment.GetEnvironmentVariable("ROLEROOT");
string tempPath = RoleEnvironment.GetLocalResource("CustomTempRoot").RootPath; //Standard temp folder is too small
/**
* Issue #1. In azure the role root is just a drive letter. Unfortunately, System.IO doesn't add needed slash
* so Path.Combine("E:","path\to\file") yields E:path\to\file
* Still hoping there is a .net api that I an use to avoid the code below.
*/
if (!roleRoot.EndsWith(@"\"))
{
roleRoot += @"\";
}
#endregion
#region Configure Java manager
//Are we downloading java from storage or regular url?
string javaDownloadType = CloudConfigurationManager.GetSetting("JavaDownloadType");
WebArtifact javaArtifact;
if (!string.IsNullOrWhiteSpace(javaDownloadType) && javaDownloadType == "storage")
{
javaArtifact = new StorageArtifact(javaDownloadURL, javaInstaller, storage);
}
else
{
javaArtifact = new WebArtifact(javaDownloadURL, javaInstaller);
}
javaManager = new JavaManager(javaArtifact, archiveRoot, logRoot); //Java installer
#endregion
#region Configure Elasticsearch manager
//Are we downloading elasticsearch from storage or regular url?
string elasticsearchDownloadType = CloudConfigurationManager.GetSetting("ElasticsearchDownloadType");
WebArtifact elasticsearchArtifact;
if (!string.IsNullOrWhiteSpace(elasticsearchDownloadType) && elasticsearchDownloadType == "storage")
{
elasticsearchArtifact = new StorageArtifact(elasticsearchDownloadURL, elasticsearchZip, storage);
}
else
{
elasticsearchArtifact = new WebArtifact(elasticsearchDownloadURL, elasticsearchZip);
}
bridge = new PipesRuntimeBridge(endpointName); //Discovery helper
if (UseElasticLocalDataFolder.ToLower() != "true")
{
//Azure file is not available in emulator
if (!RoleEnvironment.IsEmulated)
{
// Mount a drive for a CloudFileShare.
Trace.WriteLine("Configuring file Share");
var share = storage.CreateCloudFileClient()
.GetShareReference(shareName);
share.CreateIfNotExists();
Trace.WriteLine("Mapping Share to " + shareDrive);
share.Mount(shareDrive);
}
else
{
shareDrive = emulatorDataRoot;
}
}
else
{
shareDrive = elasticDataRoot;
}
var runtimeConfig = new ElasticsearchRuntimeConfig
{
DataPath = shareDrive,
LogPath = logRoot,
TempPath = tempPath,
NodeName = nodeName,
BridgePipeName = bridge.PipeName,
PackagePluginPath = Path.Combine(roleRoot, "approot", "plugins"),
TemplateConfigFile = Path.Combine(roleRoot, "approot", "config", ElasticsearchManager.ELASTICSEARCH_CONFIG_FILE),
TemplateLogConfigFile = Path.Combine(roleRoot, "approot", "config", ElasticsearchManager.ELASTICSEARCH_LOG_CONFIG_FILE)
};
elasticsearchManager = new ElasticsearchManager(runtimeConfig, elasticsearchArtifact, archiveRoot, elasticRoot, logRoot);
if (!string.IsNullOrWhiteSpace(elasticsearchPluginContainer))
{
elasticsearchManager.AddPluginSource(elasticsearchPluginContainer, storage);
}
#endregion
bool result = base.OnStart();
Trace.TraceInformation("ElasticsearchRole has been started");
return(result);
}