This component is responsible for provisioning ZScaler Private Access Connector instances on Amazon Linux 2 AMIs.

Prior to provisioning this component, it is required that a SecureString SSM Parameter containing the ZScaler App Connector Provisioning Key is populated in each account corresponding to the regional stack the component is deployed to, with the name of the SSM Parameter matching the value of var.zscaler_key.

This parameter should be populated using chamber, which is included in the geodesic image:

chamber write zscaler key <value>

Where <value> is the ZScaler App Connector Provisioning Key. For more information on how to generate this key, see: ZScaler documentation on Configuring App Connectors.

Usage

Stack Level: Regional

The typical stack configuration for this component is as follows:

components:
  terraform:
    zscaler:
      vars:
        zscaler_count: 2

Preferably, regional stack configurations can be kept DRY by importing catalog/zscaler via the imports list at the top of the configuration.

import:
  ...
  - catalog/zscaler

Requirements

Name	Version
terraform	>= 0.13.0
aws	>= 3.0
null	>= 3.0
random	>= 3.0
template	>= 2.2
utils	>= 1.10.0

Providers

Name	Version
aws	>= 3.0
template	>= 2.2

Modules

Name	Source	Version
ec2_zscaler	cloudposse/ec2-instance/aws	0.32.2
iam_roles	../account-map/modules/iam-roles	n/a
this	cloudposse/label/null	0.24.1

Resources

Name	Type
aws_iam_role_policy_attachment.ssm_core	resource
aws_ami.amazon_linux_2	data source
aws_ssm_parameter.zscaler_key	data source
template_file.userdata	data source

Inputs

Name	Description	Type	Default	Required
additional_tag_map	Additional tags for appending to tags_as_list_of_maps. Not added to tags.	map(string)	{}	no
ami_owner	The owner of the AMI used for the ZScaler EC2 instances.	string	"amazon"	no
ami_regex	The regex used to match the latest AMI to be used for the ZScaler EC2 instances.	string	"^amzn2-ami-hvm.*"	no
attributes	Additional attributes (e.g. 1)	list(string)	[]	no
aws_ssm_enabled	Set true to install the AWS SSM agent on each EC2 instances.	bool	true	no
context	Single object for setting entire context at once. See description of individual variables for details. Leave string and numeric variables as null to use default value. Individual variable settings (non-null) override settings in context object, except for attributes, tags, and additional_tag_map, which are merged.	any	{ "additional_tag_map": {}, "attributes": [], "delimiter": null, "enabled": true, "environment": null, "id_length_limit": null, "label_key_case": null, "label_order": [], "label_value_case": null, "name": null, "namespace": null, "regex_replace_chars": null, "stage": null, "tags": {} }	no
delimiter	Delimiter to be used between namespace, environment, stage, name and attributes. Defaults to - (hyphen). Set to "" to use no delimiter at all.	string	null	no
enabled	Set to false to prevent the module from creating any resources	bool	null	no
environment	Environment, e.g. 'uw2', 'us-west-2', OR 'prod', 'staging', 'dev', 'UAT'	string	null	no
id_length_limit	Limit id to this many characters (minimum 6). Set to 0 for unlimited length. Set to null for default, which is 0. Does not affect id_full.	number	null	no
instance_type	The instance family to use for the ZScaler EC2 instances.	string	"m5n.large"	no
label_key_case	The letter case of label keys (tag names) (i.e. name, namespace, environment, stage, attributes) to use in tags. Possible values: lower, title, upper. Default value: title.	string	null	no
label_order	The naming order of the id output and Name tag. Defaults to ["namespace", "environment", "stage", "name", "attributes"]. You can omit any of the 5 elements, but at least one must be present.	list(string)	null	no
label_value_case	The letter case of output label values (also used in tags and id). Possible values: lower, title, upper and none (no transformation). Default value: lower.	string	null	no
name	Solution name, e.g. 'app' or 'jenkins'	string	null	no
namespace	Namespace, which could be your organization name or abbreviation, e.g. 'eg' or 'cp'	string	null	no
regex_replace_chars	Regex to replace chars with empty string in namespace, environment, stage and name. If not set, "/[^a-zA-Z0-9-]/" is used to remove all characters other than hyphens, letters and digits.	string	null	no
region	AWS region	string	n/a	yes
secrets_store_type	Secret store type for Zscaler provisioning keys. Valid values: SSM, ASM (but ASM not currently supported)	string	"SSM"	no
security_group_rules	A list of maps of Security Group rules. The values of map is fully completed with aws_security_group_rule resource. To get more info see security_group_rule.	list(any)	[ { "cidr_blocks": [ "0.0.0.0/0" ], "from_port": 0, "protocol": "-1", "to_port": 65535, "type": "egress" } ]	no
stage	Stage, e.g. 'prod', 'staging', 'dev', OR 'source', 'build', 'test', 'deploy', 'release'	string	null	no
tags	Additional tags (e.g. map('BusinessUnit','XYZ')	map(string)	{}	no
zscaler_count	The number of Zscaler instances.	number	1	no
zscaler_key	SSM key (without leading /) for the Zscaler provisioning key secret.	string	"zscaler/key"	no

Outputs

Name	Description
instance_id	Instance ID
private_ip	Private IP of the instance

References

• cloudposse/terraform-aws-components - Cloud Posse's upstream component

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