This section explains how to deploy Cloud Native Qumulo (CNQ) on AWS by creating the persistent storage and the cluster compute and cache resources with Terraform. It also provides recommendations for Terraform deployments and information about post-deployment actions and optimization.
For an overview of CNQ on AWS, its prerequisites, and limits, see How Cloud Native Qumulo Works.
The aws-terraform-cnq-<x.y>.zip
file (the version in the file name corresponds to the provisioning scripts, not the version of Qumulo Core) contains comprehensive Terraform configurations that let you deploy S3 buckets and then create a CNQ cluster with 1 or 3–24 instances that adhere to the AWS Well-Architected Framework and have fully elastic compute and capacity.
Prerequisites
This section explains the prerequisites to deploying CNQ on AWS.
-
To allow your Qumulo cluster to report metrics to Qumulo, your AWS VPC must have outbound Internet connectivity through a NAT gateway or a firewall. Your instance shares no file data during this process.
Important
Connectivity to the following endpoints is required for a successful deployment of a Qumulo instance and quorum formation:api.missionq.qumulo.com
api.nexus.qumulo.com
-
To deploy your Qumulo cluster with a VPC S3 gateway, you must configure your VPC to use the S3 gateway VPC endpoint.
-
The following features require specific versions of Qumulo Core:
Feature Minimum Qumulo Core Version - Adding S3 buckets to increase persistent storage capacity
- Increasing the soft capacity limit for an existing CNQ cluster
7.2.1.1 7.2.0.3 Creating persistent storage Important
You must create persistent storage by using a separate Terraform deployment before you deploy the compute and cache resources for your cluster.7.1.3 with version 4.0 of the deployment scripts -
Before you configure your Terraform environment, you must sign in to the AWS CLI.
Important
- Unless you use the
AdministratorAccess
managed IAM policy for your user or role, you can run theiam_tester.py
script in theutilities
directory to validate your IAM role. - For an explicit list of privileges recommended for least-privilege access, see the IAM documentation in the
utilities
directory.
A custom IAM role or user must include the following AWS services:
cloudformation:*
ec2:*
elasticloadbalancing:*
iam:*
kms:*
lambda:*
logs:*
resource-groups:*
route53:*
route53resolver:*
s3:*
secretsmanager:*
sns:*
ssm:*
sts:*
Note
Although theAdministratorAccess
managed IAM policy provides sufficient permissions, your organization might use a custom policy with more restrictions. - Unless you use the
How the CNQ Provisioner Works
The CNQ Provisioner is an m5.large EC2 instance that configures your Qumulo cluster and any additional AWS environment requirements.
To Monitor the Provisioner’s Status
The Provisioner stores all necessary state information in the Parameter Store and shuts down automatically when it completes its tasks.
- In AWS Systems Manager, click Application Management > Parameter Store > /qumulo/<my-unique-deployment-name>/last-run-status.
- On the History tab, click ⚙️.
- In the Preferences dialog box, click Parameter history properties > Value > Confirm.
Step 1: Deploying Cluster Persistent Storage
This section explains how to deploy the S3 buckets that act as persistent storage for your Qumulo cluster.
Part 1: Prepare the Required Files
Before you can deploy the persistent storage for your cluster, you must download and prepare the required files.
-
Log in to Qumulo Nexus and click Downloads > Cloud Native Qumulo Downloads.
-
On the AWS tab, in the Download the required files section, select the Qumulo Core version that you want to deploy and then download the corresponding Terraform configuration and Debian or RPM package.
-
In a new or existing S3 bucket, within your S3 bucket prefix, create the
qumulo-core-install
directory. -
Within this directory, create another directory with the Qumulo Core version as its name. For example:
my-s3-bucket-name/my-s3-bucket-prefix/qumulo-core-install/7.5.0
Tip
Make a new subdirectory for every new release of Qumulo Core. -
Copy
qumulo-core.deb
orqumulo-core.rpm
into the directory named after the Qumulo Core version (in this example, it is7.5.0
). -
Copy
aws-terraform-cnq-<x.y>.zip
to your Terraform environment and then decompress the file.
Part 2: Create the Necessary Resources
-
Navigate to the
persistent-storage
directory. -
Edit the
provider.tf
file:-
To store the Terraform state remotely, add the name of an S3 bucket to the sections that begin with
backend "s3" {
. -
To store the Terraform state locally, comment the sections that begin with
backend "s3" {
.Important
We don’t recommend storing the Terraform state locally for production deployments.
-
-
Run the
terraform init
command.Terraform prepares the environment and displays the message
Terraform has been successfully initialized!
-
Edit the
terraform.tfvars
file.-
Specify the
deployment_name
and the correctaws_region
for your cluster’s persistent storage. -
Set the
soft_capacity_limit
to500
(or higher).Note
This value specifies the initial capacity limit of your Qumulo clusters (in TB). It is possible to increase this limit at any time.
-
-
Use the
aws
CLI to authenticate to your AWS account.-
Run the
terraform apply
command. -
Review the Terraform execution plan and then enter
yes
.Terraform displays:
-
The
Apply complete!
message with a count of added resources -
The names of the created S3 buckets
-
Your deployment’s unique name
For example:
Apply complete! Resources: 15 added, 0 changed, 0 destroyed. Outputs: persistent_storage_bucket_names = tolist([ "ab5cdefghij-my-deployment-klmnopqr9st-qps-1", "ab4cdefghij-my-deployment-klmnopqr8st-qps-2", "ab3cdefghij-my-deployment-klmnopqr7st-qps-3", ... "ab2cdefghij-my-deployment-klmnopqr6st-qps-16" ]) deployment_unique_name = "myname-deployment-ABCDE01EG2H" ...
-
-
Step 2: Deploying Cluster Compute and Cache Resources
This section explains how to deploy compute and cache resources for a Qumulo cluster by using a Ubuntu AMI and the Qumulo Core .deb
installer.
Recommendations
We strongly recommend reviewing the following recommendations before beginning this process.
-
Provisioning completes successfully when the Provisioner shuts down automatically. If the Provisioner doesn’t shut down, the provisioning cycle has failed and you must troubleshoot it. To monitor the Provisioner’s status, you can watch the Terraform operations in your terminal or monitor the Provisioner in AWS Systems Manager.
-
The first variable in the example configuration files in the
aws-terraform-cnq
repository isdeployment_name
. To help avoid conflicts between Network Load Balancers (NLBs), resource groups, cross-region CloudWatch views, and other deployment components, Terraform ignores thedeployment_name
value and any changes to it. Terraform generates the additionaldeployment_unique_name
variable; appends a random, 11-digit alphanumeric value to it; and then tags all future resources with this variable, which never changes during subsequent Terraform deployments. -
If you plan to deploy multiple Qumulo clusters, give the
q_cluster_name
variable a unique name for each cluster. -
We recommend forwarding DNS queries to Qumulo Authoritative DNS (QDNS). For a single-AZ deployment, to allow Qumulo Core to create an Amazon Route 53 outbound resolver, specify values for the
q_cluster_fqdn
andsecond_private_subnet_id
variables. The resolver uses theq_cluster_fqdn
variable to forward DNS requests to your cluster, where Qumulo Core resolves DNS for your floating IP addresses.
To Deploy the Cluster Compute and Cache Resources
-
Configure your VPC to use the gateway VPC endpoint for S3.
-
Edit the
provider.tf
file:-
To store the Terraform state remotely, add the name of an S3 bucket to the sections that begin with
backend "s3" {
anddata "terraform_remote_state" "persistent_storage" {
. -
To store the Terraform state locally, comment the sections that begin with
backend "s3" {
anddata "terraform_remote_state" "persistent_storage" {
and uncomment the section that containsbackend = "local"
.Important
We don’t recommend storing the Terraform state locally for production deployments.
-
-
Navigate to the
aws-terraform-cnq-<x.y>
directory and then run theterraform init
command.Terraform prepares the environment and displays the message
Terraform has been successfully initialized!
-
Edit the
terraform.tfvars
file, specifying the values for all variables.For more information, see
README.pdf
inaws-terraform-cnq-<x.y>.zip
. -
Run the
terraform apply
command. -
Review the Terraform execution plan and then enter
yes
.Terraform displays:
-
The
Apply complete!
message with a count of added resources -
Your deployment’s unique name
-
The names of the created S3 buckets
-
The floating IP addresses for your Qumulo cluster
-
The primary (static) IP addresses for your Qumulo cluster
-
The Qumulo Core Web UI endpoint
For example:
Apply complete! Resources: 62 added, 0 changed, 0 destroyed. Outputs: cluster_provisioned = "Success" deployment_unique_name = "myname-deployment-ABCDE01EG2H" ... persistent_storage_bucket_names = tolist([ "ab5cdefghij-my-deployment-klmnopqr9st-qps-1", "ab4cdefghij-my-deployment-klmnopqr8st-qps-2", "ab3cdefghij-my-deployment-klmnopqr7st-qps-3", ... "ab2cdefghij-my-deployment-klmnopqr6st-qps-16", ]) qumulo_floating_ips = tolist([ "203.0.113.42", "203.0.113.84", ... ]) ... qumulo_primary_ips = tolist([ "203.0.113.5", "203.0.113.6", "203.0.113.7" ]) ... qumulo_private_url_node1 = "https://203.0.113.5"
-
-
To log in to your cluster’s Web UI, use the endpoint from the Terraform output and the username and password that you have configured.
Important
If you change the administrative password for your cluster by using the Qumulo Core Web UI,qq
CLI, or REST API after deployment, you must update your password in AWS Secrets Manager.You can use the Qumulo Core Web UI to create and manage NFS exports, SMB shares, snapshots, and continuous replication relationships You can also join your cluster to Active Directory, configure LDAP, and perform many other operations.
-
Mount your Qumulo file system by using NFS or SMB and your cluster’s DNS name or IP address.
Step 3: Performing Post-Deployment Actions
This section describes the common actions you can perform on a CNQ cluster after deploying it.
Adding Nodes to an Existing Cluster
To add nodes to an existing cluster, the total node count must be greater than that of the current deployment.
- Edit
terraform.tfvars
and change the value ofq_node_count
to a new value. - Run the
terraform apply
command. -
Review the Terraform execution plan and then enter
yes
.Terraform displays an additional primary (static) IP for the new node. For example:
qumulo_primary_ips = tolist([ "203.0.113.5", "203.0.113.6", "203.0.113.7", "203.0.113.8", "203.0.113.9" ])
- To ensure that the Provisioner shut downs automatically, monitor the
/qumulo/my-deployment-name/last-run-status
parameter for the Provisioner. To monitor the Provisioner’s status, you can watch the Terraform operations in your terminal or monitor the Provisioner in AWS Systems Manager. - To check that the cluster is healthy and has the needed number of nodes, log in to the Qumulo Core Web UI.
Removing Nodes from an Existing Cluster
Removing nodes from an existing cluster is a two-step process:
- Remove the nodes from your cluster’s quorum.
- Tidy up the AWS resources for the removed nodes.
Step 1: Remove Nodes from the Cluster’s Quorum
You must perform this step while the cluster is running.
-
Edit the
terraform.tfvars
file, setting the value ofq_target_node_count
to a reduced number of nodes in the cluster. -
Run the
terraform apply
command. -
Review the nodes to be removed and then enter
yes
.Terraform removes the nodes and displays:
-
The
Apply complete!
message with a count of removed resources -
Your deployment’s unique name
-
The remaining S3 buckets for your Qumulo cluster
-
The primary (static) IP addresses for the node removed from your Qumulo cluster
-
The Qumulo Core Web UI endpoint
For example:
Apply complete! Resources: 0 added, 0 changed, 1 destroyed. Outputs: cluster_provisioned = "Success" deployment_unique_name = "myname-deployment-ABCDE01EG2H" ... persistent_storage_bucket_names = tolist([ "ab5cdefghij-my-deployment-klmnopqr9st-qps-1", "ab4cdefghij-my-deployment-klmnopqr8st-qps-2", "ab3cdefghij-my-deployment-klmnopqr7st-qps-3", ... "ab2cdefghij-my-deployment-klmnopqr6st-qps-16" ]) qumulo_floating_ips = tolist([ "203.0.113.42", "203.0.113.84", ... ]) ... qumulo_primary_ips_removed_nodes = "203.0.113.24", ... qumulo_private_url_node1 = "https://203.0.113.10"
-
Step 2: Tidy Up AWS Resources for Removed Nodes
-
Edit the
terraform.tfvars
file:-
Set the value of the
q_node_count
variable to a reduced number of nodes in the cluster. -
Set the value of the
q_target_node_count
tonull
.
-
-
Run the
terraform apply
command. -
Review the resources to be removed and then enter
yes
. -
To check that the cluster is healthy and has the needed number of nodes, log in to the Qumulo Core Web UI.
Terraform tidies up the resources for removed nodes and displays:
-
The
Apply complete!
message with a count of removed resources -
Your deployment’s unique name
-
The remaining S3 buckets for your Qumulo cluster
-
The remaining floating IP addresses for your Qumulo cluster
-
The remaining primary (static) IP addresses for your Qumulo cluster
-
The Qumulo Core Web UI endpoint
For example:
Apply complete! Resources: 0 added, 0 changed, 66 destroyed. Outputs: cluster_provisioned = "Success" deployment_unique_name = "myname-deployment-ABCDE01EG2H" ... persistent_storage_bucket_names = tolist([ "ab5cdefghij-my-deployment-klmnopqr9st-qps-1", "ab4cdefghij-my-deployment-klmnopqr8st-qps-2", "ab3cdefghij-my-deployment-klmnopqr7st-qps-3", ... "ab2cdefghij-my-deployment-klmnopqr6st-qps-16" ]) qumulo_floating_ips = tolist([ "203.0.113.42", "203.0.113.84", ... ]) ... qumulo_primary_ips = tolist([ "203.0.113.4", "203.0.113.5", "203.0.113.6", "203.0.113.7" ]) ... qumulo_private_url_node1 = "https://203.0.113.10"
-
Increasing the Soft Capacity Limit for an Existing Cluster
Increasing the soft capacity limit for an existing cluster is a two-step process:
- Configure new persistent storage parameters.
- Configure new compute and cache deployment parameters.
Step 1: Set New Persistent Storage Parameters
- Edit the
terraform.tfvars
file in thepersistent-storage
directory and set thesoft_capacity_limit
variable to a higher value. -
Run the
terraform apply
command.Review the Terraform execution plan and then enter
yes
.Terraform creates new S3 buckets as necessary and displays:
-
The
Apply complete!
message with a count of changed resources -
The names of the created S3 buckets
-
Your deployment’s unique name
-
The new soft capacity limit
For example:
Apply complete! Resources: 0 added, 1 changed, 0 destroyed. Outputs: persistent_storage_bucket_names = tolist([ "ab5cdefghij-my-deployment-klmnopqr9st-qps-1", "ab4cdefghij-my-deployment-klmnopqr8st-qps-2", "ab3cdefghij-my-deployment-klmnopqr7st-qps-3", ... "ab2cdefghij-my-deployment-klmnopqr6st-qps--16" ]) deployment_unique_name = "myname-deployment-ABCDE01EG2H" ... soft_capacity_limit = "1000 TB"
-
Step 2: Update Existing Compute and Cache Resource Deployment
- Navigate to the root directory of the
aws-terraform-cnq-<x.y>
repository. -
Run the
terraform apply
command.Review the Terraform execution plan and then enter
yes
.Terraform updates the necessary IAM roles and S3 bucket policies, adds S3 buckets to the persistent storage list for the cluster, increases the soft capacity limit, and displays the
Apply complete!
message.When the Provisioner shuts down automatically, this process is complete.
Changing the EC2 Instance Type of Your CNQ on AWS Cluster
You can change the EC2 instance type, node count, and to convert your cluster from single-AZ to multi-AZ, or the other way around.
- To minimize potential availability interruptions, you must perform the cluster replacement procedure as a two-quorum event. For example, if you stop the existing EC2 instances by using the AWS Management Console and change the EC2 instance types, two quorum events occur for each node and the read and write cache isn't optimized for the EC2 instance type.
- Performing the cluster replacement procedure ensures that the required EC2 instance types are available in advance.
Changing the EC2 instance type of your CNQ on AWS cluster is a three-step process:
- Create a new deployment in a new Terraform workspace and join the new EC2 instances to a quorum.
- Remove the existing EC2 instances.
- Clean up your S3 bucket policies.
Step 1: Create a New Deployment in a New Terraform Workspace
- To create a new Terraform workspace, run the
terraform workspace new my-new-workspace-name
command. -
Edit the
terraform.tfvars
file:-
Specify the value for the
private_subnet_id
variable.Note
For multi-AZ deployments, specify values as a comma-delimited list. - Specify the value for the
q_instance_type
variable. - Set the value of the
q_replacement_cluster
variable totrue
. - Set the value of the
q_existing_deployment_unique_name
variable to the current deployment’s name. - (Optional) To change the number of nodes, specify the value for the
q_node_count
variable.
Important
Leave the other variables unchanged. -
-
Run the
terraform apply
command.Review the Terraform execution plan and then enter
yes
.Terraform displays:
-
The
Apply complete!
message with a count of added resources -
Your deployment’s unique name
-
The names of the created S3 buckets
-
The same floating IP addresses for your Qumulo cluster
-
New primary (static) IP addresses for your Qumulo cluster
-
The Qumulo Core Web UI endpoint
For example:
Apply complete! Resources: 66 added, 0 changed, 0 destroyed. Outputs: cluster_provisioned = "Success" deployment_unique_name = "myname-deployment-ABCDE01EG2H" ... persistent_storage_bucket_names = tolist([ "ab5cdefghij-my-deployment-klmnopqr9st-qps-1", "ab4cdefghij-my-deployment-klmnopqr8st-qps-2", "ab3cdefghij-my-deployment-klmnopqr7st-qps-3", ... "ab2cdefghij-my-deployment-klmnopqr6st-qps--16" ]) qumulo_floating_ips = tolist([ "203.0.113.42", "203.0.113.84", ... ]) ... qumulo_primary_ips = tolist([ "203.0.113.4", "203.0.113.5", "203.0.113.6", "203.0.113.7" ]) ... qumulo_private_url_node1 = "https://203.0.113.10"
-
- To ensure that the Provisioner shut downs automatically, monitor the
/qumulo/my-deployment-name/last-run-status
parameter for the Provisioner. To monitor the Provisioner’s status, you can watch the Terraform operations in your terminal or monitor the Provisioner in AWS Systems Manager. - To check that the cluster is healthy and has the needed number of nodes, log in to the Qumulo Core Web UI.
Step 2: Remove the Previous Deployment
- To select the previous Terraform workspace (for example,
default
), run theterraform workspace select default
command. - To ensure that the correct workspace is selected, run the
terraform workspace show
command. -
Run the
terraform destroy
command.Review the Terraform execution plan and then enter
yes
.Terraform displays the
Destroy complete!
message with a count of destroyed resources.The previous deployment is deleted.
The persistent storage deployment remains in its original Terraform workspace. You can perform the next cluster replacement procedure in the
default
workspace.Step 3: Clean Up S3 Bucket Policies
- To list your Terraform workspaces, run the
terraform workspace list
command. - To select your new Terraform workspace, run the
terraform workspace select <my-new-workspace-name>
command. - Edit the
terraform.tfvars
file and set theq_replacement_cluster
variable tofalse
. -
Run the
terraform apply
command. This ensures that the S3 bucket policies have least privilege.Review the Terraform execution plan and then enter
yes
.Terraform displays the
Apply complete!
message with a count of destroyed resources.
Deleting an Existing Cluster
Deleting a cluster is a two-step process:
- Delete your cluster’s compute and cache resources.
- Delete your persistent storage.
- When you no longer need your cluster, you must back up all important data on the cluster safely before deleting the cluster.
- When you delete your cluster's cache and computer resources, it isn't possible to access your persistent storage anymore.
Step 1: To Delete Your Cluster’s Compute and Cache Resources
- After you back up your data safely, edit your
terraform.tfvars
file and set theterm_protection
variable tofalse
. -
Run the
terraform apply
command.Review the Terraform execution plan and then enter
yes
.Terraform displays the
Apply complete!
message with a count of changed resources. -
Run the
terraform destroy
command.Review the Terraform execution plan and then enter
yes
.Terraform deletes all of your cluster’s compute and cache resources and displays the
Destroy complete!
message and a count of destroyed resources.
Step 2: To Delete Your Cluster’s Persistent Storage
- Navigate to the
persistent-storage
directory. - Edit your
terraform.tfvars
file and set theprevent_destroy
parameter tofalse
. -
Run the
terraform apply
command.Review the Terraform execution plan and then enter
yes
.Terraform displays the
Apply complete!
message with a count of changed resources. -
Run the
terraform destroy
command.Review the Terraform execution plan and then enter
yes
.Terraform deletes all of your cluster’s persistent storage and displays the
Destroy complete!
message and a count of destroyed resources.