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Paco: Prescribed automation for cloud orchestration

Project description

Paco: Prescribed automation for cloud orchestration

PyPi version t

Paco is a cloud orchestration tool for AWS. It enables you to automate the creation and management of your cloud resources. It is a declarative YAML driven tool, that does not require you to write an code. More information is available on the Paco web site.

Use Paco

Paco can be pip installed from the paco-cloud package on PyPI.

pip install paco-cloud

For more information see the Paco install instructions. Then see Getting Started with Paco to learn how to create a Paco project and connect it to your AWS account.

Get Involved

  • Give us a Git Star and share on social media with #PacoCloud. Community discussion happens on /r/paco_cloud.

  • Feature request and bug reports are here on GitHub.

  • To develop Paco, git clone this project as well as paco.models.

  • Send us pull requests. We develop on the master branch to encourage integrating early and often. We try to also keep master production-ready but it may not always be the case.


Paco is created by Kevin Lindsay and Kevin Teague for Waterbear Cloud.

Changelog for paco

3.4.1 (2019-12-04)


  • Include paco.cookiecutters data files in paco-cloud distribution.

3.4.0 (2019-12-03)


  • New CloudWatch Dashboard resource.

  • Route53 Health Check supports domain_name or load_balancer fields.


  • include paco.stack_grps package!

  • Route53 Health Check alarm gets Namespace again.


  • Final AIM --> Paco rename: Log metric namespace changed from AIM/ to Paco/

3.3.1 (2019-11-29)


  • Placeholder in the wordpress-single-tier template for AMI Id.

  • Assorted fixes created by the AIM to paco rename.

  • ALB AWS::ElasticLoadBalancingV2::ListenerCertificate are restored.

  • Fixed Zone reference lookups in Route53 stack group.


  • Overview page works on mobile.

3.3.0 (2019-11-28)


  • Changed dependency from aim.models to paco.models

  • Renamed all things aim to paco.

3.2.0 (2019-11-27)

  • AIM has been renamed to Paco: Prescribed automation for cloud orchestration. The CLI is now paco with a PACO_HOME environment variables. The PyPI package is at paco-cloud.

  • AWS Backup service is supported by paco. Create BackupVaults with BackupPlans and BackupSelections.

3.1.0 (2019-11-06)


  • DBParameterGroups template.

  • LogGroups template adds MetricFilters if present.

  • Respect the global_role_names field for the IAM Role RoleName.

  • Alarms can be provisioned at the Application level without being specific to a Resoure context.

  • Route53HealthChecks can be provisioned. These are global resources with the application region suffixed to the health check name. The CloudFormation template and CLoudWatch Alarm are provisioned in us-east-1, as that is where the metrics are hard-coded to by AWS.

  • Lambda template will grant Lambda permissions to an Events Rule in the same application that references it as a Target.

  • New Events Rule template.

  • Added change_protected support to Cloudfront, IAM Managed Policies, and IAM Role templates.

  • Added a CodeBuild IAM Permission for IAM Users

  • Added the EIP Application Resource and a support 'eip' field to the ASG resource for associating an EIP with a single instance ASG.

  • Added cftemplate_iam_user_delegates_2019_10_02 legacy flag to make user delegate role stack names consistent with others.

  • Added support to allow ASG to launch into a single subnet.

  • Added ResourceGroupid to the ElastiCache Application Resource

  • Added caching to instance AMI ID function.ref lookups.

  • Added swap, wget installer, and get tag value helper functions to the EC2 Launch manager and moved all of its scripts to a separate file that is copied from S3 and executed.

  • Added VPC Associations to the VPC private hosted zone.

  • Added VpcConfig to the Lambda function cftemplate.

  • Added secrets_manager to Network Environments.

  • Added support for !Ref and !Sub to

  • Added a 'Nested StackGroup' feature to StackGroups. This allows us to nest a StackGroup in the place of a Stack within a StackGroup. This was needed to allow Route53 RecordSets to be created in order, but to allow a different Stack name from the current StackGroup being populated.

  • Added the Route53RecordSet CFTemplate and ctl_route53.add_record_set() method.

  • Added the EBS Application Resources. Added ebs_volume_mounts to IASG to mount volumes to single instance groups. Added the EBS Launch Bundle to implement ebs_volume_mounts


  • Fixed bug where if a AssumeRolePolicyDocument has both service and aws fields for the Principal, the aws field was ignored.

  • Improvements to the CLI. Verbose flag is now respected. Yes/no questions are consistent and can be answered with 'y', 'n', 'yes' or 'no'. Clean-up to formatting. Only prompt for provision changes when running the provision sub-command.

  • ALB Alarms now provision with an LBApplication suffix and match the Resoruce.type field.

  • Made IAM Users default password more complex to satisfy password contraints.

  • Updated some of the cookiecutter templates for aim init project.

  • Ported the Route53 CFTemplate to troposphere and separated zones into their own stacks. Added the legacy flag route53_hosted_zone_2019_10_12 for this change.

  • Cleaned up expired token handling in Stack() by consolidating duplicate code into a single method.

  • Refactor of EC2 Launch Manager user data script management. Common functions are now stored in S3 to reduce user data size.

  • Modifed LogGroup names to include the Network Environment name.

  • Refactored how Route53 RecordSets are being created. The previous design created RecordSets right in the resource's template. The new design uses the Route53 Controller to create RecordSets in their own stack using an account global name . The reason is that CloudFormation does not allow you to modify RecordSets unless you are modifying the stack that created it. This made it impossible to move DNS between resources without first deleting the record and recreating it. With a global controller, we can simple rewrite the RecordSets to new values. Added route53_record_set_2019_10_16 legacy flag to deal with pre-existing RecordSets

  • Moved app_engine.get_stack_from_ref to StackGroup


  • Fixed a couple of AWS token expiry retries from failing.

  • AWS session caching was not properly caching.

  • NotificationGroups controller was not setting up refs correctly, nor resolving them correctly.

3.0.0 (2019-09-27)


  • New directory aimdata is created within an AIM Project by paco. This is used to record state of AIM provisioning. CloudFormation templates used to create stacks in AWS are cached as well as the last copy of the AIM Project YAML files. These files are used to speed up subsequent runs and more importantly can show you what is changed between AIM runs to make it easier to review new changes before they are actaully made to AWS.

  • CLI: Display a diff of changes from last AIM run and new run in the AIM Project YAML configuration. The -d, --disable-validation flag can be used to

  • CLI: Display changes and ask for verification before updating CF templates. This can be disabled with the -y flag.

  • CLI: Offer to delete a stack in a CREATE FAILED state so that a new stack can be provisioned in it's place.

  • AWS credentials can now be set to live for up to 12 hours. You can set the .credentials field to mfa_session_expiry_secs: 43200 # 12 hours to enable this. The default is still one hour.

  • Resources with the change_protected flag set to true will not have their CloudFormation stacks updated.

  • API Gateway REST API can now have models, methods and stages. It supports Lambda integration with either 'AWS_PROXY' via an assumed Role or 'AWS' via a Lambda Permission.

  • S3Bucket has NotificationConfiguration for Lambdas. Lambda will detect if an S3Bucket within the same application notifies the lambda and will automatically add a Lambda permission to allow S3 to invoke the lambda.

  • Lambda AWS::SNS::Subscription resources now have a Region property.

  • CloudWatchAlarms template has a notification_region class attribute that can be set if notificationgroup subscriptions need to go to a single region.

  • CloudFront has Origin ID support.

  • EFS Resource support.


  • Breaking! CF Template names have been refactored so that they are more user friendly when listed in the AWS Console. This requires deletion and reprovisioning of AWS resources. Templates now have new consistent ways to create their names, so this should be the last time this change happens.

  • CLI: References to NetworkEnvironments now use consistent paco.ref syntax, e.g. aim provision netenv <ne>.<env>.<region>

  • All stacks are created with Termination Protection set.

  • CF template base class paco.cftemplates.cftemplates.CFTemplate has new methods for creating consistent AWS names: create_resource_name(), create_resoruce_name_join(), create_cfn_logical_id(), and create_cfn_logical_id_join().

  • Console messages reworked to show relevant information in columns.

  • CF template base class method gen_parameter renamed to create_cfn_parameter.

  • S3 controller now relies on the bucket name to come from the S3Bucket model object.

  • Lambda code.s3_bucket field can now be an paco.ref or a plain bucket name.

  • You can provision without specifying the region and it will include all regions in an env.

  • NotificationGroups are loaded from project['resource']['notificationgroups']


  • CloudTrail generates it's own CloudWatch LogGroup if needed. Outputs for CloudTrail and CloudWatch LogGroup.

  • APIGateway, SNSTopics and Lambda now respect the enabled field.

2.0.0 (2019-08-26)


  • snstopic output ref and lambda alarm ref fixes.

  • Added IAM Users feature for creating IAM Users and configuring console access assigning permissions, and access keys.


  • Moved aim reference generation into the Model. Model objects now have .paco_ref and .paco_ref_parts properties which contain their paco.ref reference.

  • Added StackOutputsManger(). This now creates and maintains $AIM_HOME/ResourceMap.yaml which will include a complete list of all stack outputs that are referenced using the yaml dictionary path of the resource.

  • ALB Outputs includes TargetGroup Fullname.

  • Minimal APIGatewayRestApi template.

  • Added external_resource support to the ACM

  • Added ReadOnly support to the Administrator IAMUserPermission


  • Automated CloudFront Parameter lists for things like security group and target arn lists.

  • Consolidated CFTemplates and Stack's and other Stack cleanups.

  • CloudWatch Alarms multi-Dimension Alarms now expect an paco.ref. CloudWatch Alarms are now Troposphere.

1.4.0 (2019-08-21)


  • CloudTrail resource adds basic CloudTrail provisioning.

  • LogGroups are created for all groups that the CloudWatch Agent will require. Uses the new Logging schema in paco.models.

  • Added CloudFront application Resource

  • Added VPC Peering application resource.

  • Automated the glue of passing outputs from a stack to the parameter of another stack.

1.3.1 (2019-08-07)


  • Python packaging, also include version.txt.

1.3.0 (2019-08-07)


  • CloudWatchAlarms now check for namespace and dimesions fields, that can be used to override the default of one primary dimension and the resource_name.


  • Python dist did not include and

1.2.0 (2019-08-06)


  • Deleting resources can leave dangling CloudFormation templates in your account. Controllers for NetworkEnvironments now keep track of templates they've provisioned and warn you about unused templates.

  • NotificationGroups can be provisioned as SNS Topics and subscriptions. Use aim provision notificationgroups.

  • CloudWatch Alarm descriptions are JSON with metadata about the environment, region, application, resource group and resource that the alarm is for.

  • CloudWatch Alarms will not notify the SNS Topics that they are subscribed to.

  • Rewrote commands with consistent way of passing arguments to controllers. Controllers args can now be all lower case.

  • Added Account initialization to 'aim init project'.


  • AIM references have a new format! It's simpler and more consistent. Every ref now starts with paco.ref.

  • Created paco.utils to clean up PacoContext object.

1.1.0 (2019-07-24)


  • Logging functionality added to monitoring. Logs will be ingested by a configured CloudWatch Agent and sent to a CloudWatch Log Group.

  • Added --nocache to cli to force updates to stacks.

  • CLI reports human readable validation errors from AIM project configuration files

  • "aim ftest" command added to run functional tests on the "aim init project" templates. This command will be expanded in the future so you can test your own aim projects.

  • Resources/S3.yaml is now functional: eg. aim validate S3

  • Added Region to cftemplates so we can do inline replace of <account> and <region>.

  • Added LambdaPermission and CWEventRule cftemplates.

  • Added CloudWatchController and LambdaController.


  • cookiecutter generated .credentials file was not in git repo as, the cookiecutter .gitignore file was causing it to be ignored.

1.0.0 (2019-07-06)


  • Initial documentation with AIM project site at

  • Added init command with ability to create starting templates for AIM projects with the cookiecutter project under the hood.

  • Added redirect to Listner rules in the ALB


  • Document and refactor AIM CLI.

  • Moved to paco.core

  • Refactored S3 Controller

  • Ported Route53 config to the model

  • Ported CodeCommit config to the model

  • Refactored S3 to use Application StackGroup

  • CPBD artifacts s3 bucket now uses S3 Resource in NetEnv yaml instead

  • Converted the ALB's listener and listener rules to dicts from lists


  • Removed deprecated configuration

0.6.0 (2019-06-21)

  • Document and clean-up AIM CLI

  • Validate and Provision functioning after cleanup

0.5.0 (2019-06-21)

  • First open source release

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