AWS-based cluster

AWS-based cluster

While planning the deployment of an AWS-based Mirantis Container Cloud cluster with Mirantis Kubernetes Engine, consider the requirements described below.

Warning

Some of the AWS features required for Container Cloud may not be included into your AWS account quota. Therefore, carefully consider the AWS fees applied to your account that may increase for the Container Cloud infrastructure.

Requirements for an AWS-based Container Cloud cluster

Resource

Bootstrap cluster 0

Management cluster

Managed cluster

Comment

# of nodes

1

3 (HA)

5 (6 with StackLight HA)

  • A bootstrap cluster requires access to the Mirantis CDN.

  • A management cluster requires 3 nodes for the manager nodes HA. Adding more than 3 nodes to a management or regional cluster is not supported.

  • A managed cluster requires 3 nodes for the manager nodes HA and 2 nodes for the Container Cloud workloads. If the multiserver mode is enabled for StackLight, 3 nodes are required for the Container Cloud workloads.

# of vCPUs per node

2

8

8

RAM in GB per node

4

16

16

Storage in GB per node

5 (available)

120

120

Operating system

Ubuntu 16.04 or 18.04

Ubuntu 18.04

Ubuntu 18.04

For a management and managed cluster, a base Ubuntu 18.04 image with the default SSH ubuntu user name is required.

Docker version

18.09

-

-

For a management and managed cluster, Mirantis Container Runtime 19.03.12 In 2.2.0 or 19.03.13 Starting 2.3.0

Instance type

-

c5d.2xlarge

c5d.2xlarge

To prevent issues with low RAM, Mirantis recommends the following types of instances for a managed cluster with 50-200 nodes:

  • c5d.4xlarge - manager node

  • r5.4xlarge - nodes where the StackLight server components run

Bastion host instance type

-

t2.micro

t2.micro

The Bastion instance is created with a public Elastic IP address to allow SSH access to instances.

# of volumes

-

7 (total 110 GB)

5 (total 60 GB)

  • A management cluster requires 2 volumes for Container Cloud (total 50 GB) and 5 volumes for StackLight (total 60 GB)

  • A managed cluster requires 5 volumes for StackLight

# of Elastic load balancers to be used

-

10

6

  • Elastic LBs for a management cluster: 1 for Kubernetes, 4 for Container Cloud, 5 for StackLight

  • Elastic LBs for a managed cluster: 1 for Kubernetes and 5 for StackLight

# of Elastic IP addresses to be used

-

1

1

0

The bootstrap cluster is necessary only to deploy the management cluster. When the bootstrap is complete, this cluster can be deleted and its resources can be reused for the managed cluster workloads.