def validate_soca_config()

in installer/resources/src/install_soca.py [0:0]

• 41 lines of code
• 24 McCabe index (conditional complexity)

def validate_soca_config(user_specified_inputs, install_properties):
    # We run one final validation check at the end, comparing the install properties from config.yml and user inputs
    print("\n====== Verifying SOCA Configuration  ======\n")
    errors = []
    exit_installer = False  # Installer will exit if user has invalid default_config.yml params that require a file edit

    if user_specified_inputs["vpc_id"]:
        private_subnets = ast.literal_eval(base64.b64decode(user_specified_inputs["private_subnets"]).decode("utf-8"))
        private_subnet_azs = [k.split(",")[1] for k in private_subnets if k.split(",")[1]]
        public_subnets = ast.literal_eval(base64.b64decode(user_specified_inputs["public_subnets"]).decode("utf-8"))
        public_subnet_azs = [k.split(",")[1] for k in public_subnets]

    # if AZ is = 2, check if ES data nodes is 1,2 or a multiple. No restriction when using > 3 AZs
    if not user_specified_inputs["es_domain"]:
        if user_specified_inputs["vpc_id"]:
            max_azs = len(list(dict.fromkeys(private_subnet_azs)))
        else:
            max_azs = install_properties.Config.network.max_azs

        if max_azs == 2:
            # No limitation when using 3 or more AZs. 1 is not an option here
            data_nodes = install_properties.Config.elasticsearch.data_nodes
            if (data_nodes % 2) == 0 or data_nodes <= 2:
                pass
            else:
                errors.append("Config > ElasticSearch > data_nodes must be 1,2 or a multiple of 2.")
                exit_installer = True

    if user_specified_inputs["vpc_id"]:
        # Validate network configuration when using a custom VPC
        if len(list(dict.fromkeys(private_subnet_azs))) == 1:
            errors.append(f"Your private subnets are only configured to use a single AZ ({private_subnet_azs}). You must use at least 2 AZs for HA")
        if len(list(dict.fromkeys(public_subnet_azs))) == 1:
            errors.append(f"Your public subnets are only configured to use a single AZ ({public_subnet_azs}). You must use at least 2 AZs for HA")
    else:
        # check if az is min 2
        if install_properties.Config.network.max_azs < 2:
            errors.append("Config > Network > max_azs must be at least 2")
            exit_installer = True

    if not errors:
        print(f"{fg('green')}Configuration valid. {attr('reset')}")
        return True
    else:
        for message in errors:
            print(f"{fg('red')}- {message} {attr('reset')}")

        print(f"{fg('red')}\n /!\ Unable to validate configuration. Please fix the errors listed above and try again. {attr('reset')}")
        if exit_installer is True:
            sys.exit(1)
        else:
            return False