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AWS Deployment with AWS Managed Database

Warning

Chef Automate 4.10.1 released on 6th September 2023 includes improvements to the deployment and installation experience of Automate HA. Please read the blog to learn more about key improvements. Refer to the pre-requisites page (On-Premises, AWS) and plan your usage with your customer success manager or account manager.

Follow the steps below to deploy Chef Automate High Availability (HA) on AWS (Amazon Web Services) cloud with Managed AWS Services. Please see the AWS Deployment Prerequisites page and move ahead with the following sections of this page.

Warning

  • Do not modify the workspace path. It should always be /hab/a2_deploy_workspace
  • We currently don’t support AD managed users in nodes. We only support local Linux users.
  • If you have configured a sudo password for the user, you must create an environment variable sudo_password and set the password as the variable’s value. Example: export sudo_password=<password>. And then, run all sudo commands with the sudo -E or --preserve-env option. Example: sudo -E ./chef-automate deploy config.toml --airgap-bundle automate.aib. This is required for the chef-automate CLI to run the commands with sudo privileges. Please refer this for details.
  • If SELinux is enabled, deployment with configure it to permissive (Usually in case of RHEL SELinux is enabled)

Run these steps on Bastion Host Machine

  1. Run the below commands to download the latest Automate CLI and Airgapped Bundle:

    #Run commands as sudo.
    sudo -- sh -c "
    #Download Chef Automate CLI.
    curl https://packages.chef.io/files/current/latest/chef-automate-cli/chef-automate_linux_amd64.zip \
    | gunzip - > chef-automate && chmod +x chef-automate \
    | cp -f chef-automate /usr/bin/chef-automate
    #Download the latest Airgapped Bundle.
    #To download specific version bundle, example version: 4.2.59 then replace latest.aib with 4.2.59.aib
    curl https://packages.chef.io/airgap_bundle/current/automate/latest.aib -o automate.aib
    "
    

    Note

    Chef Automate bundles are available for 365 days from the release of a version. However, the milestone release bundles are available for download forever.

Steps to Generate Config

  1. Generate config with relevant data using the below command:

    chef-automate config gen config.toml
    

    Click here to know more about generating config

    Note

    You can also generate a configuration file using the init-config subcommand. The command is as shown below:

    chef-automate init-config-ha aws

    Warning

    The following characters aren’t allowed in passwords:

    • `
    • "
    • '
    • \
    • ;
    • $

Steps to Provision

  1. Continue with the deployment after generating the config:

    chef-automate provision-infra config.toml --airgap-bundle automate.aib
    

Note

Once the provisioning is successful, if you have added custom DNS to your configuration file (fqdn), make sure to map the load-balancer FQDN from the output of the previous command to your DNS from DNS Provider

Config Verify

  1. After successful provision, run verify config command:

    sudo chef-automate verify -c config.toml
    

    To know more about config verify, you can check Config Verify Doc page.

    Once the verification is successfully completed, then proceed with deployment, In case of failure, please fix the issue and re-run the verify command.

Steps to deploy

  1. The following command will run the deployment. The deploy command will first run the verify command internally, to skip verification process during deploy command use --skip-verify flag

     chef-automate deploy config.toml --airgap-bundle automate.aib
    

    To skip verification in the deployment command, use --skip-verify flag

     chef-automate deploy config.toml --airgap-bundle automate.aib --skip-verify
    

Verify Deployment

  1. Once the deployment is successful, Get the consolidated status of the cluster

     chef-automate status summary
    
  2. Get the service status from each node

     chef-automate status
    
  3. Post Deployment, you can run the verification command

     chef-automate verfiy
    
  4. Get the cluster Info

     chef-automate info
    
  5. After the deployment is completed. To view the Automate UI, run the command chef-automate info, and you will get the automate_url. If you want to change the FQDN URL from the load balancer URL to some other FQDN URL, then use the below template.

    • Create a file a2.fqdn.toml
    [global]
      [global.v1]
        fqdn = "AUTOMATE-DNS-URL-WITHOUT-HTTP"
    
    • Run the command to apply the config from the bastion
    chef-automate config patch a2.fqdn.toml --automate
    
    • Create a file cs.fqdn.toml
    [global]
      [global.v1]
        fqdn = "AUTOMATE-DNS-URL-WITHOUT-HTTPS"
      [global.v1.external.automate]
        node = "https://AUTOMATE-DNS-URL"
    
    • Run the command to apply the config from the bastion
    chef-automate config patch cs.fqdn.toml --chef_server
    

Note

  • Have DNS certificate ready in ACM for 2 DNS entries: Example: chefautomate.example.com, chefinfraserver.example.com, Reference for Creating new DNS Certificate in ACM.
  • DNS should have entries for chefautomate.example.com and chefinfraserver.example.com pointing to respective Load Balancers as shown in the chef-automate info command

Check if Chef Automate UI is accessible by going to (Domain used for Chef Automate) https://chefautomate.example.com.

After successful deployment, proceed with the following:

  1. Create user and orgs, Click here to learn more about user and org creation
  2. Workstation setup, Click here to learn more about workstation setup
  3. Node bootstrapping, Click here to learn more about node bootstrapping.

Sample Config

Note

Assuming 8+1 nodes (1 bastion, 1 for Chef Automate UI, 1 for Chef Infra Server, Managed RDS Postgresql, and Managed OpenSearch)

Note

  • User only needs to create/set up the bastion node, a user with IAM role of Admin access and the S3 bucket access attached to it.
  • The following config will create an S3 bucket for backup.
  • To provide multiline certificates use triple quotes like """ multiline certificate contents""".
[architecture]
  [architecture.aws]
    ssh_user = "ec2-user"
    ssh_group_name = "ec2-user"
    ssh_key_file = "/home/ec2-user/KEY_FILENAME.pem"
    ssh_port = "22"
    secrets_key_file = "/hab/a2_deploy_workspace/secrets.key"
    secrets_store_file = "/hab/a2_deploy_workspace/secrets.json"
    architecture = "aws"
    workspace_path = "/hab/a2_deploy_workspace"
    backup_mount = "/mnt/automate_backups"
    backup_config = "s3"
    s3_bucketName = "BUCKET_NAME"
[automate]
  [automate.config]
    admin_password = "test@343423"
    fqdn = "chefautomate.example.com"
    config_file = "configs/automate.toml"
    root_ca = "-----BEGIN CERTIFICATE-----
    -----END CERTIFICATE-----"
    instance_count = "2"
[chef_server]
  [chef_server.config]
    fqdn = "chefserver.example.com"
    lb_root_ca = "-----BEGIN CERTIFICATE-----
    -----END CERTIFICATE-----"
    instance_count = "2"
[opensearch]
  [opensearch.config]
    instance_count = "0"
[postgresql]
  [postgresql.config]
    instance_count = "0"
[aws]
  [aws.config]
    profile = "default"   # This should be commented incase if IAM role is attached
    region = "us-east-2"
    aws_vpc_id = "vpc12318h"
    private_custom_subnets = ["subnet-e556d512", "subnet-e556d513", "subnet-e556d514"]
    public_custom_subnets = ["subnet-p556d512", "subnet-p556d513", "subnet-p556d514"]
    ssh_key_pair_name = "my-key"
    setup_managed_services = true
    managed_opensearch_domain_name = "automate-ha"
    managed_opensearch_domain_url = "vpc-automate-ha-a6uhtsu.ap-southeast-2.es.amazonaws.com"
    managed_opensearch_username = "MY-USER-NAME"
    managed_opensearch_user_password = "MY-OPENSEARCH-PASSWORD"
    aws_os_snapshot_role_arn = "......."
    os_snapshot_user_access_key_id = "......."
    os_snapshot_user_access_key_secret = "......."
    managed_rds_instance_url = "database-1.jux.us-east-2.rds.amazonaws.com:5432"
    managed_rds_superuser_username = "MY-POSTGRES-SUPER-USER-NAME"
    managed_rds_superuser_password = "MY-POSTGRES-PASSWORD"
    managed_rds_dbuser_username = "MY-DB-USERNAME"
    managed_rds_dbuser_password = "MY-DB-PASSWORD"
    ami_id = "ami-08d4ac5b634553e16"
    automate_server_instance_type = "m5.large"
    chef_server_instance_type = "m5.large"
    automate_lb_certificate_arn = "arn:aws:acm:ap-southeast-2:112758395563:certificate/9b04-6513-4ac5-9332-2ce4e"
    chef_server_lb_certificate_arn = "arn:aws:acm:ap-southeast-2:112758395563:certificate/9b04-6513-4ac5-9332-2ce4e"
    chef_ebs_volume_iops = "100"
    chef_ebs_volume_size = "200"
    chef_ebs_volume_type = "gp3"
    automate_ebs_volume_iops = "100"
    automate_ebs_volume_size = "200"
    automate_ebs_volume_type = "gp3"
    lb_access_logs = "true"

Minimum Changes required in the Sample Config

  • Provide ssh_user which has access to all the machines. E.g., ec2-user
  • Provide a ssh_key_file path; this key should have access to all the Machines or VMs. E.g.: ~/.ssh/user-key.pem.
  • Provide region Eg: ap-southeast-2.
  • Provide aws_vpc_id Eg: vpc-0a12*****.
  • Provide private_custom_subnets and public_custom_subnets.
  • Provide ssh_key_pair_name Eg: user-key.
  • Provide setup_managed_services Eg: true.
  • Provide managed_opensearch_domain_name,managed_opensearch_domain_url,managed_opensearch_username,managed_opensearch_user_password.
  • Provide managed_rds_instance_url,managed_rds_superuser_username,managed_rds_superuser_password,managed_rds_dbuser_username,managed_rds_dbuser_password.
  • Provide ami_id for the region where the infra is created. Eg: ami-0bb66b6ba59664870.
  • Provide certificate ARN for both automate and Chef servers in automate_lb_certificate_arn and chef_server_lb_certificate_arn, respectively.

Uninstall Chef Automate HA

Danger

The cleanup command will remove all AWS resources created by the provision-infra command

Adding the --force flag will remove object storage if it was created with the provision-infra command.

To uninstall Chef Automate HA instances after successful deployment, run the below command in your bastion host. This will delete the AWS resources that are created during provision-infra.

chef-automate cleanup --aws-deployment --force

OR

chef-automate cleanup --aws-deployment

Following the cleanup command the following command can be used to remove the deployment workspace in the Bastion machine. This will also remove the logs file inside the workspace.

hab pkg uninstall chef/automate-ha-deployment
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