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Tip

A sample template for eksctl and terraform is available from the  /wiki/spaces/DRXXE/pages/6194875 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 (4.0) page for the AWS service list required for MZ installation in AWS

Working With the Infrastructure Template

  • Get the latest infrastructure templates from /wiki/spaces/DRXXE/pages/6194875.

    Download the template file and unzip it to a new folder.

    Code Block
    $ cd <your work folder>
    $ tar xzvf mz10-aws.tgz


For EKS Cluster

Set up the VPC and EKS Cluster

Note
titleNote!

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

  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

    Code Block
    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)


  2. Execute the following command to start the creation of the EKS cluster

    Code Block
    $ 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
    titleNote!

    The eksctl create command can take a concidreble amout of time to be completed.


Create Resources Required for  with EKS

  1. Go to the terraform folder and copy the terraform.tfvars.example to terraform.tfvars.

    Code Block
    $ cp terraform.tfvars.example terraform.tfvars


  2. Retrieve the following values from AWS Console and fill in the parameters in terraform.tfvars.

    terraform.tfvarsWhere to get the values

    aws_account_id

    From AWS Console
    Go to My Account page and you will see the Account Id under Account Settings

    aws_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.


    Code Block
    #  ____  _____ _____   _____ _   _ _____ ____  _____
    # / ___|| ____|_   _| |_   _| | | | ____/ ___|| ____|_
    # \___ \|  _|   | |     | | | |_| |  _| \___ \|  _| (_)
    #  ___) | |___  | |     | | |  _  | |___ ___) | |___ _
    # |____/|_____| |_|     |_| |_| |_|_____|____/|_____(_)
    
    # 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 = ""


  3. Run the following commands:

    Code Block
    $ terraform init
    $ terraform plan
    $ terraform apply


  4. Save the output from terraform for the next step.

Installing AWS Helpers

  1. Run the following commands by replacing the placeholders with values from the terraform output.

    PlaceholderValue 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


  2. Refer to https://github.com/kubernetes-sigs/aws-efs-csi-driver to install Amazon EFS CSI Driver as follows:

    Code Block
    $ 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


  3. 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:

    Code Block
    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"


  4. Refer to https://github.com/bitnami/charts/tree/master/bitnami/external-dns to install External DNS as follows:

    Code Block
    $ 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


  5. Refer to https://github.com/aws/eks-charts/tree/master/stable/aws-load-balancer-controller to install AWS Load Balancer Controller as follows:

    Code Block
    $ 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>


  6. Create a custom values yaml and populate it with the following information, which will be used in NGINX ingress controller installation.

    Code Block
    titleingress-nginx-values.yaml
    controller:
      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


  7. Install NGINX chart with custom values yaml:

    Note

    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


    Code Block
    $ 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

Anchor
openshift
openshift

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
titleNote!

It is important that you explicitly set up the SCC with the following strategies:

  • RunAsAny for RUNASUSER

  • RunAsAny 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
titleWarning!

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.

Code Block
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:

  1. Go to the terraform folder and copy the terraform.tfvars.example to terraform.tfvars.

    Code Block
    $ cp terraform.tfvars.example terraform.tfvars


  2. Retrieve the following values from AWS Console and fill in the parameters in terraform.tfvars.

    terraform.tfvarsWhere to get the values

    aws_account_id

    From AWS Console
    Go to My Account page and you will see the Account Id under Account Settings

    aws_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.


  3. Comment out the following line from kms.tf file. The role will not exist in this instance.

    Code Block
       principals {
          type  = "AWS"
          identifiers = ["arn:aws:iam::${var.aws_account_id}:role/aws-service-role/autoscaling.amazonaws.com/AWSServiceRoleForAutoScaling"]
    
        }


  4. Run the following commands:

    Code Block
    $ terraform init
    $ terraform plan
    $ terraform apply


  5. Save the output from terraform for the next step.

Installing AWS Helpers

  1. Run the following commands by replacing the placeholders with values from the terraform output.

    PlaceholderValue 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


  2. Refer to https://github.com/kubernetes-sigs/aws-efs-csi-driver to install Amazon EFS CSI Driver as follows:

    Code Block
    $ 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


    Note

    The efs-csi-controller-sa and efs-csi-node-sa service accounts require the privileged SCC access permission to be granted.


    Note

    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.


  3. Refer to https://github.com/bitnami/charts/tree/master/bitnami/external-dns to install External DNS as follows:

    Code Block
    $ 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>


    Note

    The external-dns service account requires the nonroot SCC access permission to be granted.


  4. Refer to https://github.com/aws/eks-charts/tree/master/stable/aws-load-balancer-controller to install AWS Load Balancer Controller as follows:

    Code Block
    $ 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>


    Note

    The aws-load-balancer-controller service account requires the nonroot SCC access permission to be granted.


  5. Create a custom values yaml and populate it with the following information, which will be used in NGINX ingress controller installation.

    Code Block
    titleingress-nginx-values.yaml
    controller:
      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


  6. Install NGINX chart with custom values yaml:

    Note

    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


    Code Block
    $ 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>


...