Deployment in AWS

Along with the Kubernetes cluster, GoodData.CN requires the following AWS resources:

  • ElastiCache cluster (with Redis interface)
  • Aurora RDS (Postgres family)

Before you start deploying these services, ensure that you know the name of the CloudFormation stack that was generated and deployed during the initial EKS deployment using the eksctl tool.

The name of the stack is usually eksctl-<name>-cluster, where <name> is the name that you gave to the EKS cluster when you created it. If you are unsure about the stack name, you can get it from the AWS console or by using aws cloudformation describe-stacks --query 'Stacks[*].StackName'.

ElastiCache Cluster

Use the elasticache-redis.yaml CloudFormation template to deploy ElastiCache.

You must add the following parameters to the template:

  • ParentVPCStack (eksctl-<name>-cluster)
  • EngineVersion (Redis version, defaults to 5.0.4)
  • CacheNodeType (one of the supported instance sizes, defaults to cache.t2.micro)

Use the following command to provision the service:

aws cloudformation create-stack --stack-name gooddata-cn-cache-redis \
  --template-body file://elasticache-redis.yaml \
  --parameters \
      ParameterKey=ParentVPCStack,ParameterValue=eksctl-<name>-cluster \
      ParameterKey=CacheNodeType,ParameterValue=cache.t2.small

The command returns the identifier of a created CloudFormation stack.

It takes several minutes to create resources. You can watch progress in the AWS console, or by using aws-cli:

aws cloudformation wait stack-create-complete --stack-name gooddata-cn-cache-redis

When the status is “CREATE_COMPLETE”, the resource is created.

aws cloudformation describe-stacks --stack-name gooddata-cn-cache-redis \
  --query 'Stacks[0].StackStatus'

Note: Ensure that you note down the name of the CloudFormation stack for ElastiCache cluster (gooddata-cn-cache-redis in this example), you will need it later.

RDS Aurora

Use the rds-aurora.yaml CloudFormation template to deploy RDS.

You must add following parameters to the template:

  • ParentVPCStack (eksctl-<name>-cluster)
  • DBUsername (username for database access, defaults to postgres)
  • DBPassword (password of the DB user)
  • DBInstanceType (one of the supported instance sizes, defaults to db.r4.large)
  • DBEngineVersion (version of the PostgreSQL engine, defaults to 11.6)

Use the following command to provision the service:

aws cloudformation create-stack --stack-name gooddata-cn-md-aurora \
  --template-body file://rds-aurora.yaml \
  --parameters \
      ParameterKey=ParentVPCStack,ParameterValue=eksctl-<name>-cluster \
      ParameterKey=DBPassword,ParameterValue=secret123

The command returns the identifier of a created CloudFormation stack.

It takes several minutes to create resources. You can watch progress in the AWS console, or by using aws-cli:

aws cloudformation wait stack-create-complete --stack-name gooddata-cn-md-aurora

When the status is “CREATE_COMPLETE”, the resource is created.

aws cloudformation describe-stacks --stack-name gooddata-cn-md-aurora \
  --query 'Stacks[0].StackStatus'

Note: Ensure that you note down the name of the RDS stack (gooddata-cn-md-aurora in this example), you will need it later.

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