Terraform Redis instance in Memorystore store with stateful set deployment to GKE

This module is here just cause we wanted to deploy Redis in Memorystore and create proxy pod for it to create simple access for developers. Once everything is deployed, use goproxie to forward traffic from a local machine. For normal applications running in the GCP, use google_redis_instance_hostname from outputs.

Usage

module "redis" {
  source = "AckeeCZ/redis/memorystore"

  project                = var.project
  namespace              = var.namespace
  cluster_ca_certificate = module.gke.cluster_ca_certificate
  cluster_user           = module.gke.cluster_username
  cluster_password       = module.gke.cluster_password
  cluster_endpoint       = module.gke.endpoint
}

Before you do anything in this module

Install pre-commit hooks by running following commands:

brew install pre-commit terraform-docs
pre-commit install

Example

Simple example on howto use this module could be found at folder example. Use spinup_testing.sh script to init the environment.

Requirements

Name	Version
terraform	>= 0.13

Providers

Name	Version
google	n/a
kubernetes	n/a

Inputs

Name	Description	Type	Default	Required
cluster_ca_certificate	Public CA certificate that is the root of trust for the GKE K8s cluster	string	n/a	yes
cluster_endpoint	Cluster control plane endpoint	string	n/a	yes
cluster_token	Cluster master token, keep always secret!	string	n/a	yes
instance_name	Redis instances name	string	"redis"	no
memory_size_gb	Redis memory size in GiB	number	1	no
namespace	K8s namespace used to deploy endpoints and services	string	"production"	no
network	Authorized network allowed to communicate with redis instance	string	"default"	no
project	Name of GCP project	string	n/a	yes
redis_version	Redis instance version. Must be on of these values: REDIS_5_0, REDIS_4_0, REDIS_3_2	string	"REDIS_4_0"	no
region	GCP region	string	"europe-west3"	no
tier	The service tier of the instance. Must be one of these values: BASIC, STANDARD_HA	string	"BASIC"	no
zone	The zone where the instance will be provisioned. If not provided, the service will choose a zone for the instance	string	null	no

Outputs

Name	Description
google_redis_instance_hostname	Hostname or IP address of the exposed Redis endpoint used by clients to connect to the service
google_redis_instance_port	The port number of the exposed Redis endpoint