private async Task GenerateAndDeployStack(IEnumerable <Alarm> alarms,
string stackName, bool dryRun)
{
var template = new CloudWatchCloudFormationTemplate();
template.AddAlarms(alarms);
var json = template.WriteJson();
await _stack.DeployStack(stackName, json, dryRun);
}
private async Task GenerateAndDeployStack(
IEnumerable <Alarm> alarms,
IEnumerable <AlertTarget> targets,
string groupName,
string stackName,
bool dryRun)
{
alarms = alarms.Where(a => a.AlarmDefinition.Enabled).ToList();
var onlyUpdateExisting = !alarms.Any();
var template = new CloudWatchCloudFormationTemplate(groupName, targets.ToList());
template.AddAlarms(alarms);
var json = template.WriteJson();
await _stack.DeployStack(stackName, json, dryRun, onlyUpdateExisting);
}
private async Task GenerateAndDeployStack(
IEnumerable <Alarm> alarms,
IEnumerable <AlertTarget> targets,
string groupName,
string stackName,
bool dryRun)
{
alarms = alarms.Where(a => a.AlarmDefinition.Enabled).ToList();
// if there are no alarms we want to update existing stacks (in case everything has been removed)
// but we don't want to create a new one which is empty
var onlyUpdateExisting = !alarms.Any();
var template = new CloudWatchCloudFormationTemplate(groupName, targets.ToList());
template.AddAlarms(alarms);
var json = template.WriteJson();
await _stack.DeployStack(stackName, json, dryRun, onlyUpdateExisting);
}
private async Task GenerateAndDeployStack(IEnumerable <Alarm> alarms, IEnumerable <AlertTarget> targets,
string groupName,
string stackName, bool dryRun)
{
alarms = alarms.ToList();
if (!alarms.Any())
{
// todo, we should actually continue here but will change in later PR as want to keep behaviour same during refactor
_logger.Info($"{stackName} would have no alarms, skipping");
return;
}
var template = new CloudWatchCloudFormationTemplate(groupName, targets.ToList());
template.AddAlarms(alarms);
var json = template.WriteJson();
await _stack.DeployStack(stackName, json, dryRun);
}
public async Task SaveChanges(bool dryRun)
{
var groupedBySuffix = _alarms
.GroupBy(x => x.AlertingGroup.Name,
x => x,
(g, x) => new
{
// this is because a lot of the group suffixes are lower(group name)
// and it reduces the impact of moving stack naming from suffix to name
Name = g.ToLowerInvariant(),
Alarms = x
});
foreach (var group in groupedBySuffix)
{
var stackName = "Watchman-" + group.Name;
var template = new CloudWatchCloudFormationTemplate();
template.AddAlarms(group.Alarms);
var json = template.WriteJson();
await _stack.DeployStack(stackName, json, dryRun);
}
}