Files
raven/server/AyaNova/generator/CoreJobBackup.cs
2020-05-19 20:05:09 +00:00

119 lines
4.8 KiB
C#

using System;
using System.Threading.Tasks;
using Microsoft.Extensions.Logging;
using AyaNova.Models;
using AyaNova.Util;
using System.IO;
namespace AyaNova.Biz
{
/// <summary>
/// Backup
///
/// </summary>
internal static class CoreJobBackup
{
private static ILogger log = AyaNova.Util.ApplicationLogging.CreateLogger("CoreJobBackup");
private static bool BackupIsRunning = false;
////////////////////////////////////////////////////////////////////////////////////////////////
//
//
public static async Task DoWorkAsync(AyContext ct)
{
if (BackupIsRunning) return;
//get NOW in utc
DateTime utcNow = DateTime.UtcNow;
//what time should we backup today?
DateTime todayBackupTime = new DateTime(utcNow.Year, utcNow.Month, utcNow.Day, ServerGlobalOpsSettings.BackupTime.Hour, ServerGlobalOpsSettings.BackupTime.Minute, 0, DateTimeKind.Utc);//first start with NOW
//Are we there yet?
if (utcNow < todayBackupTime) return;//nope
//Yes, we've passed into the backup window time, but that's also true if we just ran the backup as well so
//need to check for that as well...
//Has last backup run more than 24 hours ago?
if (ServerGlobalOpsSettings.LastBackup > utcNow.AddHours(-24))
return;//nope, so we have already run today's backup
//Ok, we're into backup time and it's been more than 24 hours since it last ran so let's do this...
AyaNova.Api.ControllerHelpers.ApiServerState apiServerState = null;
try
{
BackupIsRunning = true;
//LOCK DOWN SERVER
apiServerState = (AyaNova.Api.ControllerHelpers.ApiServerState)ServiceProviderProvider.Provider.GetService(typeof(AyaNova.Api.ControllerHelpers.ApiServerState));
apiServerState.SetClosed("BACKUP JOB RUNNING");
log.LogTrace("Backup starting");
//*************
//DO DATA BACKUP
//build command
//this is valid:
//C:\data\code\PostgreSQLPortable_12.0\App\PgSQL\bin\pg_dump --dbname=postgresql://postgres:raven@127.0.0.1:5432/AyaNova -Fc > huge_new.backup
//"AYANOVA_DB_CONNECTION": "Server=localhost;Username=postgres;Password=raven;Database=AyaNova;",
Npgsql.NpgsqlConnectionStringBuilder PostgresConnectionString=new Npgsql.NpgsqlConnectionStringBuilder(ServerBootConfig.AYANOVA_DB_CONNECTION);
var DBNameParameter=$"--dbname=postgresql://{PostgresConnectionString.Username}:{PostgresConnectionString.Password}@{PostgresConnectionString.Host}:{PostgresConnectionString.Port}/{PostgresConnectionString.Database}";
var DataBackupFile = $"db-{FileUtil.GetSafeDateFileName()}.backup";//presentation issue so don't use UTC for this one
DataBackupFile = FileUtil.GetFullPathForUtilityFile(DataBackupFile);
var BackupUtilityCommand = "pg_dump";
if (!string.IsNullOrWhiteSpace(ServerBootConfig.AYANOVA_BACKUP_PG_DUMP_PATH))
BackupUtilityCommand = Path.Combine(ServerBootConfig.AYANOVA_BACKUP_PG_DUMP_PATH, BackupUtilityCommand);
var FullBackupCommand=$"{BackupUtilityCommand} {DBNameParameter} -Fc > {DataBackupFile}";
log.LogInformation("BACKUP STUB: DATA BACKUP RUNNING NOW - TORA TORA TORA!");
log.LogInformation($"BACKUP COMMAND: {FullBackupCommand}");
//DO FILE BACKUP IF ATTACHMENTS BACKED UP
log.LogInformation("BACKUP STUB: ATTACHMENTS BACKUP RUNNING NOW");
//PRUNE BACKUP SETS NOT KEPT
log.LogInformation("BACKUP STUB: PRUNING RUNNING NOW");
//v.next - COPY TO ONLINE STORAGE
//***************
//Update last backup
var biz = GlobalOpsSettingsBiz.GetBiz(ct);
var OpSet = await biz.GetAsync(false);
OpSet.LastBackup = utcNow;
await biz.ReplaceAsync(OpSet);
log.LogTrace("Backup completed");
}
catch (Exception ex)
{
log.LogError(ex, "BACKUP FAILED!");
throw ex;
}
finally
{
apiServerState.ResumePriorState();
BackupIsRunning = false;
log.LogInformation("BACKUP STUB: COMPLETELY FINISHED BACKING UP");
}
}
/////////////////////////////////////////////////////////////////////
}//eoc
}//eons