Terraform module which creates Cloudwatch resources on AWS.
module "log_metric_filter" {
source = "terraform-aws-modules/cloudwatch/aws//modules/log-metric-filter"
version = "~> 3.0"
log_group_name = "my-application-logs"
name = "error-metric"
pattern = "ERROR"
metric_transformation_namespace = "MyApplication"
metric_transformation_name = "ErrorCount"
}Read Filter and Pattern Syntax for explanation of pattern.
module "log_group" {
source = "terraform-aws-modules/cloudwatch/aws//modules/log-group"
version = "~> 3.0"
name = "my-app"
retention_in_days = 120
}module "log_stream" {
source = "terraform-aws-modules/cloudwatch/aws//modules/log-stream"
version = "~> 3.0"
name = "stream1"
log_group_name = "my-app"
}module "metric_alarm" {
source = "terraform-aws-modules/cloudwatch/aws//modules/metric-alarm"
version = "~> 3.0"
alarm_name = "my-application-logs-errors"
alarm_description = "Bad errors in my-application-logs"
comparison_operator = "GreaterThanOrEqualToThreshold"
evaluation_periods = 1
threshold = 10
period = 60
unit = "Count"
namespace = "MyApplication"
metric_name = "ErrorCount"
statistic = "Maximum"
alarm_actions = ["arn:aws:sns:eu-west-1:835367859852:my-sns-queue"]
}This submodule is useful when you need to create very similar alarms where only dimensions are different (eg, multiple AWS Lambda functions), but the rest of arguments are the same.
module "metric_alarms" {
source = "terraform-aws-modules/cloudwatch/aws//modules/metric-alarms-by-multiple-dimensions"
version = "~> 3.0"
alarm_name = "lambda-duration-"
alarm_description = "Lambda duration is too high"
comparison_operator = "GreaterThanOrEqualToThreshold"
evaluation_periods = 1
threshold = 10
period = 60
unit = "Milliseconds"
namespace = "AWS/Lambda"
metric_name = "Duration"
statistic = "Maximum"
dimensions = {
"lambda1" = {
FunctionName = "index"
},
"lambda2" = {
FunctionName = "signup"
},
}
alarm_actions = ["arn:aws:sns:eu-west-1:835367859852:my-sns-queue"]
}Check out list of all AWS services that publish CloudWatch metrics for detailed information about each supported service.
module "cis_alarms" {
source = "terraform-aws-modules/cloudwatch/aws//modules/cis-alarms"
version = "~> 3.0"
log_group_name = "my-cloudtrail-logs"
alarm_actions = ["arn:aws:sns:eu-west-1:835367859852:my-sns-queue"]
}AWS CloudTrail normally publishes logs into AWS CloudWatch Logs. This module creates log metric filters together with metric alarms according to CIS AWS Foundations Benchmark v1.4.0 (05-28-2021). Read more about CIS AWS Foundations Controls.
module "metric_stream" {
name = "metric-stream"
firehose_arn = "arn:aws:firehose:eu-west-1:835367859852:deliverystream/metric-stream-example"
output_format = "json"
role_arn = "arn:aws:iam::835367859852:role/metric-stream-to-firehose-20240113005123755300000002"
# conflicts with exclude_filter
include_filter = {
ec2 = {
namespace = "AWS/EC2"
metric_names = ["CPUUtilization", "NetworkIn"]
}
}
statistics_configuration = [
{
additional_statistics = ["p99"]
include_metric = [
{
namespace = "AWS/EC2"
metric_name = "CPUUtilization"
},
{
namespace = "AWS/EC2"
metric_name = "NetworkIn"
}
]
},
{
additional_statistics = ["p90", "TM(10%:90%)"]
include_metric = [
{
namespace = "AWS/EC2"
metric_name = "CPUUtilization"
}
]
}
]
}module "query_definition" {
source = "terraform-aws-modules/cloudwatch/aws//modules/query-definition"
version = "~> 4.0"
name = "my-query-definition"
log_group_names = ["my-log-group-name"]
query_string = <<EOF
fields @timestamp, @message
| sort @timestamp desc
| limit 25
EOF
}module "composite_alarm" {
source = "terraform-aws-modules/cloudwatch/aws//modules/composite-alarm"
version = "~> 4.0"
alarm_name = "composite-alarm"
alarm_description = "Example of a composite alarm"
alarm_actions = ["arn:aws:sns:eu-west-1:835367859852:my-sns-topic"]
ok_actions = ["arn:aws:sns:eu-west-1:835367859852:my-sns-topic"]
alarm_rule = join(" AND ", tolist([
"ALARM(metric-alarm-1)",
"ALARM(metric-alarm-2)"
]))
actions_suppressor = {
alarm = "suppressor"
extension_period = 20
wait_period = 10
}
}- Complete Cloudwatch log metric filter and alarm
- Cloudwatch log group with log stream
- Cloudwatch metric alarms for AWS Lambda
- Cloudwatch metric alarms for AWS Lambda with multiple dimensions
- CIS AWS Foundations Controls: Metrics + Alarms
- Cloudwatch query definition
- Cloudwatch Metric Stream
- Cloudwatch Composite Alarm
Module is maintained by Anton Babenko with help from these awesome contributors.
Apache 2 Licensed. See LICENSE for full details.
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