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https://github.com/barryw/terraform-aws-zookeeper
Terraform module for bringing up a Zookeeper ensemble
https://github.com/barryw/terraform-aws-zookeeper
Last synced: about 7 hours ago
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Terraform module for bringing up a Zookeeper ensemble
- Host: GitHub
- URL: https://github.com/barryw/terraform-aws-zookeeper
- Owner: barryw
- License: mit
- Created: 2021-05-09T17:34:43.000Z (over 3 years ago)
- Default Branch: master
- Last Pushed: 2022-04-06T10:32:40.000Z (over 2 years ago)
- Last Synced: 2023-03-08T03:02:30.823Z (over 1 year ago)
- Language: HCL
- Size: 7.81 KB
- Stars: 3
- Watchers: 1
- Forks: 7
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
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#### Introduction
This is a Terraform module for bringing up a fully-formed Zookeeper ensemble. It has the following features:
- Forces an odd number of nodes for quorum.
- Nodes are auto provisioning and auto healing. They will come up and cluster automatically.
- Data and log volumes are separate.
- CPU, memory, network and disk metrics are sent to CloudWatch metrics.
- Zookeeper logs are sent to CloudWatch logs.
- If a Zookeeper process becomes unresponsive, its AutoscalingGroup will replace it automatically.
#### TODO
- Backups
- Web frontend
- Maybe use exhibitor?
- Enable rolling updates on the AutoscalingGroup
#### Usage
```hcl
module "zookeeper" {
source = "github.com/barryw/terraform-aws-zookeeper"
# If empty, no keypair will be assigned to instances
keypair_name = var.keypair
vpc_id = var.vpc_id
# Zookeeper instance subnets. Should be private
zookeeper_subnets = [var.private_subnet1, var.private_subnet2]
# defaults to false
create_bastion = true
bastion_subnet = [var.public_subnet1]
bastion_ingress_cidrs = ["0.0.0.0/0"]
zookeeper_version = "3.7.0"
# Add any custom tags to include on created resources
tags = {}
# Gets added to the beginning of resource names
name_prefix = "my-zookeeper"
# Must be odd
cluster_size = 3
instance_type = "m4.large"
root_volume_size = 32
data_volume_type = "gp2"
data_volume_size = 10
log_volume_type = "gp2"
log_volume_size = 10
# Specify a zone to create records on
route53_zone = ""
# Specify the security group id of the groups to allow connections to ZK. If not specified, use the VPC's CIDR
client_security_group_id = ""
# The namespace to use for CloudWatch metrics
cloudwatch_namespace = "CWAgent"
zookeeper_config = {
clientPort = 2181,
syncLimit = 5,
initLimit = 10,
tickTime = 2000,
zkHeap = 4096
}
}
```
#### License
This module is licensed under the MIT license: https://opensource.org/licenses/MIT