Setup (3.3)
A sample template for eksctl and terraform is available from the Release Information page and you can use these 'as is' or modify them to create a system according to your own requirements.
You can use this as a reference or modify accordingly with your infrastructure standards, Please refer the Pre-installation (3.3) page for the AWS service list required for MZ installation in AWS
Working With the Infrastructure Template
Get the latest infrastructure templates from Release Information.
Download the template file and unzip it to a new folder.$ cd <your work folder> $ tar xzvf mz10-aws.tgz
For EKS Cluster
Set up the VPC and EKS Cluster
Note!
If you are using Openshift cluster refer to the section for Openshift.
The default value for cluster name is mz-eks and region is eu-west-1
Go to the eksctl folder in the unzipped contents.
Update the following fields in the mz-eks.yaml file:refer https://github.com/weaveworks/eksctl for more parameters can be used in eksctl template
Metadata name (cluster name, default to mz-eks) aws region (default to eu-west-1) Worker Nodes instanceType (change the instant type to match your application load) minSize, maxSize and desiredSize (if you wish to have more nodes running)
Execute the following command to start the creation of the EKS cluster
$ eksctl create cluster -f mz-eks.yaml --kubeconfig=./kubeconfig $ export KUBECONFIG=`pwd`/kubeconfig You should be able to run any kubectl commands from now on
Note!
The eksctl create command can take a concidreble amout of time to be completed.
Create Resources Required for with EKS
Go to the terraform folder and copy the terraform.tfvars.example to terraform.tfvars.
$ cp terraform.tfvars.example terraform.tfvars
Retrieve the following values from AWS Console and fill in the parameters in terraform.tfvars.
terraform.tfvars Where to get the values aws_account_id
From AWS Console
Go to My Account page and you will see the Account Id under Account Settingsaws_region
Follow as per the value configured in mz-eks.yaml
Default is eu-west-1
cluster_name
Follow as per the value configured in mz-eks.yaml
Default is mz-eks
db_password
Use a secure password for the platform database. Minimum 10 characters.
domain
domain_zone_id
From AWS Console
On the Route 53 page, find your existing Hosted Zone and copy the Hosted Zone ID and Domain Name.vpc_id
From AWS Console
On the VPC Service page, find the vpc name eksctl-mz-eks-cluster/VPC and copy the VPC ID.# ____ _____ _____ _____ _ _ _____ ____ _____ # / ___|| ____|_ _| |_ _| | | | ____/ ___|| ____|_ # \___ \| _| | | | | | |_| | _| \___ \| _| (_) # ___) | |___ | | | | | _ | |___ ___) | |___ _ # |____/|_____| |_| |_| |_| |_|_____|____/|_____(_) # The below values must be set explicitly in order for the setup to work correctly. vpc_id = "vpc-xxxxxxxxxxxxxxxxx" aws_region = "eu-west-1" aws_account_id = "" # cluster_name.domain will be the final domain name cluster_name = "mz-eks" domain = "example.com" # Route 53 Hosted Zone ID # This should be the Zone ID of the Domain above. Ie. that domain must already exist in Route 53. # We'll insert the nameservers of the new domain name "cluster-name.domain" as a NS record in domain's hosted zone. domain_zone_id = "" # Password to the database. db_password = ""
Run the following commands:
$ terraform init $ terraform plan $ terraform apply
- Save the output from terraform for the next step.
Installing AWS Helpers
Run the following commands by replacing the placeholders with values from the terraform output.
Placeholder Value from terraform output <region>
Follow as per the value configured in cluster.yaml
Default is eu-west-1
<eks_domain_zone_name>
eks_domain_zone_name
<eks_domain_zone_id>
eks_domain_zone_id
<efs id>
efs_id
<cluster_name>
Follow as per the value configured in cluster.yaml
Default is mz-eks
Refer to https://github.com/kubernetes-sigs/aws-efs-csi-driver to install Amazon EFS CSI Driver as follows:
$ helm repo add aws-efs-csi-driver https://kubernetes-sigs.github.io/aws-efs-csi-driver/ $ helm repo update $ helm upgrade --install aws-efs-csi-driver --namespace <namespace> aws-efs-csi-driver/aws-efs-csi-driver
If you need to dynamically provision persistent volume claim (PVC) through Amazon EFS access points, refer to https://github.com/kubernetes-sigs/aws-efs-csi-driver/tree/master/examples/kubernetes/dynamic_provisioning to install storage class.
Below is the example of storage class yaml setup:
kind: StorageClass apiVersion: storage.k8s.io/v1 metadata: name: aws-efs provisioner: efs.csi.aws.com parameters: provisioningMode: efs-ap fileSystemId: <efs id> directoryPerms: "700"
Refer to https://github.com/bitnami/charts/tree/master/bitnami/external-dns to install External DNS as follows:
$ helm repo add bitnami https://charts.bitnami.com/bitnami $ helm repo update $ helm upgrade --install external-dns bitnami/external-dns \ -n <namespace> \ --set provider=aws \ --set aws.zoneType=public \ --set txtOwnerId=<eks_domain_zone_id> \ --set "domainFilters[0]=<eks_domain_zone_name>" \ --set policy=sync
Refer to https://github.com/aws/eks-charts/tree/master/stable/aws-load-balancer-controller to install AWS Load Balancer Controller as follows:
$ helm repo add eks https://aws.github.io/eks-charts $ helm repo update $ helm install aws-load-balancer-controller eks/aws-load-balancer-controller \ -n <namespace> \ --set clusterName=<cluster_name>
Create a custom values yaml and populate it with the following information, which will be used in NGINX ingress controller installation.
ingress-nginx-values.yamlcontroller: scope: enabled: true admissionWebhooks: enabled: false metrics: enabled: false serviceMonitor: enabled: false ingressClassResource: name: nginx enabled: true default: false controllerValue: "k8s.io/ingress-nginx" watchIngressWithoutClass: false service: targetPorts: http: 80 https: 443 type: NodePort extraArgs: v: 1 containerSecurityContext: runAsUser: 101 allowPrivilegeEscalation: true serviceAccount: create: false
Install NGINX chart with custom values yaml:
See https://github.com/kubernetes/ingress-nginx/releases for the released NGINX helm chart version.
If you are running multiple installations on the cluster, in case the Nginx IngressClass resource is already installed, then you should add the following to your helm command to avoid hitting a resource already exists error.
--set controller.ingressClassResource.enabled=false$ helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx $ helm repo update $ helm install <release name> ingress-nginx/ingress-nginx --version <NGINX helm chart version> -f ingress-nginx-values.yaml -n <namespace>
For Openshift Cluster
These installation steps are applicable only if you are using an Openshift cluster on your AWS. The following procedures and steps are specific to Openshift clusters.
Set up Openshift Cluster
To set up the Openshift cluster on your AWS, refer to https://docs.openshift.com/container-platform/4.7/installing/installing_aws/installing-aws-default.html.
Note!
It is important that you explicitly set up the SCC with the following strategies:
RunAsAny
for RUNASUSERRunAsAny
for FSGROUP
You should also bind your SCC to a Service Account for Openshift. To point into using your defined Service Account, you can modify the serviceAccountName properties in values.yaml file to your own.
Warning!
You are required to give your Service Account Name the nonroot access to allow for the installation of . You may use the following command to grant the nonroot access to your Service Account Name.
oc adm policy add-scc-to-user nonroot -z <service account name> -n <namespace>
Create Resources Required for with Openshift
Once you have successfully set up the cluster, proceed with the following steps:
Go to the terraform folder and copy the terraform.tfvars.example to terraform.tfvars.
$ cp terraform.tfvars.example terraform.tfvars
Retrieve the following values from AWS Console and fill in the parameters in terraform.tfvars.
terraform.tfvars Where to get the values aws_account_id
From AWS Console
Go to My Account page and you will see the Account Id under Account Settingsaws_region
Follow as per the value configured in mz-eks.yaml
Default is eu-west-1
cluster_name
Follow as per the value configured in mz-eks.yaml
Default is mz-eks
db_password
Use a secure password for the platform database. Minimum 10 characters.
domain
domain_zone_id
From AWS Console
On the Route 53 page, find your existing Hosted Zone and copy the Hosted Zone ID and Domain Name.vpc_id
From AWS Console
On the VPC Service page, find the vpc name where your Openshift cluster is located and copy the VPC ID.Comment out the following line from kms.tf file. The role will not exist in this instance.
principals { type = "AWS" identifiers = ["arn:aws:iam::${var.aws_account_id}:role/aws-service-role/autoscaling.amazonaws.com/AWSServiceRoleForAutoScaling"] }
Run the following commands:
$ terraform init $ terraform plan $ terraform apply
Save the output from terraform for the next step.
Installing AWS Helpers
Run the following commands by replacing the placeholders with values from the terraform output.
Placeholder Value from terraform output <region>
Follow as per the value configured in cluster.yaml
Default is eu-west-1
<eks_domain_zone_name>
eks_domain_zone_name
<eks_domain_zone_id>
eks_domain_zone_id
<efs id>
efs_id
<cluster_name>
Follow as per the value configured in cluster.yaml
Default is mz-eks
Refer to https://github.com/kubernetes-sigs/aws-efs-csi-driver to install Amazon EFS CSI Driver as follows:
$ helm repo add aws-efs-csi-driver https://kubernetes-sigs.github.io/aws-efs-csi-driver/ $ helm repo update $ helm upgrade --install aws-efs-csi-driver --namespace <namespace> aws-efs-csi-driver/aws-efs-csi-driver
The efs-csi-controller-sa and efs-csi-node-sa service accounts require the privileged SCC access permission to be granted.
The driver requires IAM permission to talk to Amazon EFS to manage the volume on your behalf, hence you must set up driver permission that is mentioned in the installation steps.
Refer to https://github.com/bitnami/charts/tree/master/bitnami/external-dns to install External DNS as follows:
$ helm repo add bitnami https://charts.bitnami.com/bitnami $ helm repo update $ helm upgrade --install external-dns bitnami/external-dns \ -n <namespace> \ --set provider=aws \ --set aws.zoneType=public \ --set txtOwnerId=<eks_domain_zone_id> \ --set "domainFilters[0]=<eks_domain_zone_name>" \ --set policy=sync \ --set aws.region=<region> \ --set aws.credentials.accessKey=<AWS_Access_Key> \ --set aws.credentials.secretKey=<AWS_Secret_Access_Key>
The external-dns service account requires the nonroot SCC access permission to be granted.
Refer to https://github.com/aws/eks-charts/tree/master/stable/aws-load-balancer-controller to install AWS Load Balancer Controller as follows:
$ helm repo add eks https://aws.github.io/eks-charts $ helm repo update $ helm install aws-load-balancer-controller eks/aws-load-balancer-controller \ -n <namespace> \ --set clusterName=<cluster_name> \ --set region=<region> \ --set vpcId=<vpc_id> \ --set env.AWS_ACCESS_KEY_ID=<AWS_Access_Key> \ --set env.AWS_SECRET_ACCESS_KEY=<AWS_Secret_Access_Key>
The aws-load-balancer-controller service account requires the nonroot SCC access permission to be granted.
Create a custom values yaml and populate it with the following information, which will be used in NGINX ingress controller installation.
ingress-nginx-values.yamlcontroller: scope: enabled: true admissionWebhooks: enabled: false metrics: enabled: false serviceMonitor: enabled: false ingressClassResource: name: nginx enabled: true default: false controllerValue: "k8s.io/ingress-nginx" watchIngressWithoutClass: false service: targetPorts: http: 80 https: 443 type: NodePort extraArgs: v: 1 containerSecurityContext: runAsUser: 101 allowPrivilegeEscalation: true serviceAccount: create: false
Install NGINX chart with custom values yaml:
See https://github.com/kubernetes/ingress-nginx/releases for the released NGINX helm chart version.
If you are running multiple installations on the cluster, in case the Nginx IngressClass resource is already installed, then you should add the following to your helm command to avoid hitting a resource already exists error.
--set controller.ingressClassResource.enabled=false$ helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx $ helm repo update $ helm install <release name> ingress-nginx/ingress-nginx --version <NGINX helm chart version> -f ingress-nginx-values.yaml -n <namespace>