public void Run()
{
using (var db = new DALdbContext(_config.DatabaseConnectionString))
{
var hosts = db.Hosts.Include(a => a.User).Where(a => a.Active).ToList();
foreach (var host in hosts)
{
var alive = IsAlive(host);
var hostLog = new HostCheckLog
{
HostID = host.ID,
IsUp = alive
};
db.HostLog.Add(hostLog);
db.SaveChanges();
if (host.AlertsEnabled)
{
if (!alive)
{
ProcessFailure(host);
}
else
{
ProcessSuccess(host);
}
}
}
}
}
private void ProcessFailure(Hosts host)
{
using (var db = new DALdbContext(_config.DatabaseConnectionString))
{
var lastLog = db.HostLog.Where(a => a.HostID == host.ID && a.Active && a.IsUp).OrderByDescending(a => a.Created).FirstOrDefault();
var lastUp = host.Created.DateTime;
if (lastLog != null)
{
lastUp = lastLog.Created.DateTime;
}
SendEmail(host.User.Username, host.HostName, $"Dead Server {host} - down since {lastUp} eom");
}
}
void ProcessSuccess(Hosts host)
{
using (var db = new DALdbContext(_config.DatabaseConnectionString))
{
var lastLog = db.HostLog.Where(a => a.HostID == host.ID && a.Active && a.IsUp).OrderByDescending(a => a.Created).FirstOrDefault();
var lastUp = host.Created.DateTime;
if (lastLog == null)
{
return;
}
lastUp = lastLog.Modified.DateTime;
if (DateTime.Now.Subtract(lastUp).TotalMinutes < host.AllowableDowntimeMinutes)
{
return;
}
SendEmail(host.User.Username, host.HostName, $"Restored Server {host.HostName} - down since {lastUp} eom");
}
}
public HostsController(DALdbContext dbContext) : base(dbContext)
{
}
public BaseController(DALdbContext dbContext = null)
{
this.dbContext = dbContext;
}
public AccountController(DALdbContext dbContext) : base(dbContext)
{
}
