gocfn

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 Go to latest Published: Jun 8, 2020 License: Apache-2.0

README

Go Report Card Build Status GOCFN - cloudformation package and deploy commands in Golang

Following library re-implements existing functionality in aws cloudformation package and aws cloudformation deploy and provides additional features that are not available in the standard aws cli

Motivation

I was really frustrated with the behaviour of the standard aws cloudformation deploy command, particularly with following issues

(at the time I started writing this library):

  1. No options to specify --tags
  2. Command would fail if change set does not contain changes
  3. Command does not output describe stack on successful completion

In addition, to fixing above mentioned issues I also needed those features:

  1. Preview option - to generate and output a change set without actually executing it
  2. Stream option - stream stack events while stack is being executed
  3. Force deploy option - delete stack if it's failed creation and in CREATE_FAILED or ROLLBACK_COMPLETE status

Installation

There are three ways to install gocfn

Using homebrew

brew tap b-b3rn4rd/homebrew-tap
brew install gocfn

Using go get

go get github.com/b-b3rn4rd/gocfn

Manually

Download and install a binary the releases page.

Deploy Usage

gocfn deploy - provides identical parameters to aws cloudformation deploy and can be transparently substitute it.

usage: gocfn deploy --template-file=TEMPLATE-FILE --name=NAME [<flags>]

Deploys the specified AWS CloudFormation template by creating and then executing a change set.

Flags:
      --help                     Show context-sensitive help (also try --help-long and --help-man).
  -d, --debug                    Enable debug logging.
      --version                  Show application version.
      --template-file=TEMPLATE-FILE  
                                 The path where your AWS CloudFormation template is located.
      --name=NAME                The name of the AWS CloudFormation stack you're deploying to.
      --s3-bucket=S3-BUCKET      The name of the S3 bucket where this command uploads your CloudFormation template.
      --force-upload             Indicates whether to override existing files in the S3 bucket.
      --s3-prefix=S3-PREFIX      A prefix name that the command adds to the artifacts name when it uploads them to the S3 bucket.
      --kms-key-id=KMS-KEY-ID    The ID of an AWS KMS key that the command uses to encrypt artifacts that are at rest in the S3 bucket.
      --parameter-overrides=PARAMETER-OVERRIDES  
                                 A list of parameter structures that specify input parameters for your stack template.
      --capabilities=CAPABILITIES ...  
                                 A list of capabilities that you must specify before AWS Cloudformation can create certain stacks.
      --no-execute-changeset     Indicates whether to execute the change set. Specify this flag if you want to view your stack changes before executing
      --role-arn=ROLE-ARN        The Amazon Resource Name (ARN) of an AWS Identity and Access Management (IAM) role
      --notification-arns=NOTIFICATION-ARNS ...  
                                 The Amazon Resource Name (ARN) of an AWS Identity and Access Management (IAM) role.
      --fail-on-empty-changeset  Specify if the CLI should return a non-zero exit code if there are no changes to be made to the stack
      --tags=TAGS                A list of tags to associate with the stack that is created or updated.
      --force-deploy             Force CloudFormation stack deployment if it's in CREATE_FAILED state.
      --stream                   Stream stack events during creation or update process.

Examples

Generate a change set without actually executing it

Change set can be generated without execution by passing --no-execute-changeset parameter, the output will be written to the stdout

$ gocfn deploy --name hello --parameter-overrides "BucketName=helloza" --template-file stack.yml --no-execute-changeset
{
    "Capabilities": null,
    "ChangeSetId": "arn:aws:cloudformation:us-west-2:111111111111:changeSet/gocfn-cloudformation-package-deploy-1521960705/f229d566-fc74-456d-8ad4-5cb7458c8411",
    "ChangeSetName": "gocfn-cloudformation-package-deploy-1521960705",
    "Changes": [
        {
            "ResourceChange": {
                "Action": "Modify",
                "Details": [
                    {
                        "CausingEntity": "S3Bucket",
                        "ChangeSource": "ResourceReference",
                        "Evaluation": "Static",
                        "Target": {
                            "Attribute": "Properties",
                            "Name": "Bucket",
                            "RequiresRecreation": "Always"
                        }
                    },
                    {
                        "CausingEntity": "S3Bucket",
                        "ChangeSource": "ResourceReference",
                        "Evaluation": "Static",
                        "Target": {
                            "Attribute": "Properties",
                            "Name": "PolicyDocument",
                            "RequiresRecreation": "Never"
                        }
                    }
                ],
                "LogicalResourceId": "BucketPolicy",
                "PhysicalResourceId": "hello-BucketPolicy-15UXUJSQ48KAH",
                "Replacement": "True",
                "ResourceType": "AWS::S3::BucketPolicy",
                "Scope": [
                    "Properties"
                ]
            },
            "Type": "Resource"
        },
        {
            "ResourceChange": {
                "Action": "Modify",
                "Details": [
                    {
                        "CausingEntity": null,
                        "ChangeSource": "DirectModification",
                        "Evaluation": "Dynamic",
                        "Target": {
                            "Attribute": "Properties",
                            "Name": "BucketName",
                            "RequiresRecreation": "Always"
                        }
                    },
                    {
                        "CausingEntity": "BucketName",
                        "ChangeSource": "ParameterReference",
                        "Evaluation": "Static",
                        "Target": {
                            "Attribute": "Properties",
                            "Name": "BucketName",
                            "RequiresRecreation": "Always"
                        }
                    }
                ],
                "LogicalResourceId": "S3Bucket",
                "PhysicalResourceId": "gellozaa",
                "Replacement": "True",
                "ResourceType": "AWS::S3::Bucket",
                "Scope": [
                    "Properties"
                ]
            },
            "Type": "Resource"
        }
    ],
    "CreationTime": "2018-03-25T06:51:47.628Z",
    "Description": "Created by gocfn at 2018-03-25 06:51:45.301595904 +0000 UTC",
    "ExecutionStatus": "AVAILABLE",
    "NextToken": null,
    "NotificationARNs": null,
    "Parameters": [
        {
            "ParameterKey": "BucketName",
            "ParameterValue": "helloza",
            "ResolvedValue": null,
            "UsePreviousValue": null
        }
    ],
    "RollbackConfiguration": {
        "MonitoringTimeInMinutes": null,
        "RollbackTriggers": null
    },
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "Status": "CREATE_COMPLETE",
    "StatusReason": null,
    "Tags": null
}
(Re)deploy a stack that does not contain changes

In situations when stack does not contain new changes, gocfn won't fail and output stack's information, unless --fail-on-empty-changeset is specified.

gocfn deploy --name hello --parameter-overrides "BucketName=helloza" --template-file stack.yml
{
    "Capabilities": null,
    "ChangeSetId": "arn:aws:cloudformation:us-west-2:111111111111:changeSet/gocfn-cloudformation-package-deploy-1521960952/0db34469-ba57-4286-b5c7-ff049763c5fb",
    "CreationTime": "2018-03-01T08:57:19.888Z",
    "DeletionTime": null,
    "Description": null,
    "DisableRollback": false,
    "EnableTerminationProtection": false,
    "LastUpdatedTime": "2018-03-25T06:56:25.743Z",
    "NotificationARNs": null,
    "Outputs": [
        {
            "Description": "Name of S3 bucket to hold website content",
            "ExportName": null,
            "OutputKey": "S3BucketSecureURL",
            "OutputValue": "https://helloza.s3.amazonaws.com"
        },
        {
            "Description": "URL for website hosted on S3",
            "ExportName": null,
            "OutputKey": "WebsiteURL",
            "OutputValue": "http://helloza.s3-website-us-west-2.amazonaws.com"
        }
    ],
    "Parameters": [
        {
            "ParameterKey": "BucketName",
            "ParameterValue": "helloza",
            "ResolvedValue": null,
            "UsePreviousValue": null
        }
    ],
    "ParentId": null,
    "RoleARN": null,
    "RollbackConfiguration": {
        "MonitoringTimeInMinutes": null,
        "RollbackTriggers": null
    },
    "RootId": null,
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "StackStatus": "UPDATE_COMPLETE",
    "StackStatusReason": null,
    "Tags": null,
    "TimeoutInMinutes": null
}

Error on empty change set can be forced by specifying --fail-on-empty-changeset

gocfn deploy --name hello --parameter-overrides "BucketName=helloza" --template-file stack.yml --fail-on-empty-changeset
{"error":"The submitted information didn't contain changes. Submit different information to create a change set.","level":"error","msg":"ChangeSet creation error","time":"2018-03-25T18:00:16+11:00"}
Deploy stack from s3 bucket 
gocfn deploy --name hello --parameter-overrides "BucketName=helloza" --template-file stack.yml --s3-bucket cf-templates-17636j9pul1d8-us-west-2
{
    "Capabilities": null,
    "ChangeSetId": "arn:aws:cloudformation:us-west-2:111111111111:changeSet/gocfn-cloudformation-package-deploy-1521960952/0db34469-ba57-4286-b5c7-ff049763c5fb",
    "CreationTime": "2018-03-01T08:57:19.888Z",
    "DeletionTime": null,
    "Description": null,
    "DisableRollback": false,
    "EnableTerminationProtection": false,
    "LastUpdatedTime": "2018-03-25T06:56:25.743Z",
    "NotificationARNs": null,
    "Outputs": [
        {
            "Description": "Name of S3 bucket to hold website content",
            "ExportName": null,
            "OutputKey": "S3BucketSecureURL",
            "OutputValue": "https://helloza.s3.amazonaws.com"
        },
        {
            "Description": "URL for website hosted on S3",
            "ExportName": null,
            "OutputKey": "WebsiteURL",
            "OutputValue": "http://helloza.s3-website-us-west-2.amazonaws.com"
        }
    ],
    "Parameters": [
        {
            "ParameterKey": "BucketName",
            "ParameterValue": "helloza",
            "ResolvedValue": null,
            "UsePreviousValue": null
        }
    ],
    "ParentId": null,
    "RoleARN": null,
    "RollbackConfiguration": {
        "MonitoringTimeInMinutes": null,
        "RollbackTriggers": null
    },
    "RootId": null,
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "StackStatus": "UPDATE_COMPLETE",
    "StackStatusReason": null,
    "Tags": null,
    "TimeoutInMinutes": null
}
Deploy stack with stream enabled

When --stream is enabled, stack events are sent to stderr, therefore describe stack output still can be captured by from stdout

gocfn deploy --name hello --parameter-overrides "BucketName=helloza1" --template-file stack.yml --stream 1> output.json
{
    "ClientRequestToken": null,
    "EventId": "ef096ff0-2ffb-11e8-94a1-50a68a2012f2",
    "LogicalResourceId": "hello",
    "PhysicalResourceId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "ResourceProperties": null,
    "ResourceStatus": "UPDATE_IN_PROGRESS",
    "ResourceStatusReason": "User Initiated",
    "ResourceType": "AWS::CloudFormation::Stack",
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "Timestamp": "2018-03-25T07:12:52.843Z"
}
{
    "ClientRequestToken": null,
    "EventId": "S3Bucket-UPDATE_IN_PROGRESS-2018-03-25T07:12:57.644Z",
    "LogicalResourceId": "S3Bucket",
    "PhysicalResourceId": "helloza",
    "ResourceProperties": "{\"BucketName\":\"helloza1\",\"WebsiteConfiguration\":{\"IndexDocument\":\"index.html\",\"ErrorDocument\":\"error.html\"}}",
    "ResourceStatus": "UPDATE_IN_PROGRESS",
    "ResourceStatusReason": "Requested update requires the creation of a new physical resource; hence creating one.",
    "ResourceType": "AWS::S3::Bucket",
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "Timestamp": "2018-03-25T07:12:57.644Z"
}
{
    "ClientRequestToken": null,
    "EventId": "S3Bucket-UPDATE_IN_PROGRESS-2018-03-25T07:12:59.141Z",
    "LogicalResourceId": "S3Bucket",
    "PhysicalResourceId": "helloza1",
    "ResourceProperties": "{\"BucketName\":\"helloza1\",\"WebsiteConfiguration\":{\"IndexDocument\":\"index.html\",\"ErrorDocument\":\"error.html\"}}",
    "ResourceStatus": "UPDATE_IN_PROGRESS",
    "ResourceStatusReason": "Resource creation Initiated",
    "ResourceType": "AWS::S3::Bucket",
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "Timestamp": "2018-03-25T07:12:59.141Z"
}
{
    "ClientRequestToken": null,
    "EventId": "BucketPolicy-UPDATE_IN_PROGRESS-2018-03-25T07:13:24.377Z",
    "LogicalResourceId": "BucketPolicy",
    "PhysicalResourceId": "hello-BucketPolicy-12DJ4X7RUU313",
    "ResourceProperties": "{\"Bucket\":\"helloza1\",\"PolicyDocument\":{\"Version\":\"2012-10-17\",\"Statement\":[{\"Action\":\"s3:GetObject\",\"Resource\":\"arn:aws:s3:::helloza1/*\",\"Effect\":\"Allow\",\"Principal\":\"*\",\"Sid\":\"PublicReadForGetBucketObjects\"}],\"Id\":\"MyPolicy\"}}",
    "ResourceStatus": "UPDATE_IN_PROGRESS",
    "ResourceStatusReason": "Requested update requires the creation of a new physical resource; hence creating one.",
    "ResourceType": "AWS::S3::BucketPolicy",
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "Timestamp": "2018-03-25T07:13:24.377Z"
}
{
    "ClientRequestToken": null,
    "EventId": "S3Bucket-UPDATE_COMPLETE-2018-03-25T07:13:19.759Z",
    "LogicalResourceId": "S3Bucket",
    "PhysicalResourceId": "helloza1",
    "ResourceProperties": "{\"BucketName\":\"helloza1\",\"WebsiteConfiguration\":{\"IndexDocument\":\"index.html\",\"ErrorDocument\":\"error.html\"}}",
    "ResourceStatus": "UPDATE_COMPLETE",
    "ResourceStatusReason": null,
    "ResourceType": "AWS::S3::Bucket",
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "Timestamp": "2018-03-25T07:13:19.759Z"
}
{
    "ClientRequestToken": null,
    "EventId": "0430a100-2ffc-11e8-9f2c-503aca41a061",
    "LogicalResourceId": "hello",
    "PhysicalResourceId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "ResourceProperties": null,
    "ResourceStatus": "UPDATE_COMPLETE_CLEANUP_IN_PROGRESS",
    "ResourceStatusReason": null,
    "ResourceType": "AWS::CloudFormation::Stack",
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "Timestamp": "2018-03-25T07:13:28.315Z"
}
{
    "ClientRequestToken": null,
    "EventId": "BucketPolicy-UPDATE_COMPLETE-2018-03-25T07:13:25.970Z",
    "LogicalResourceId": "BucketPolicy",
    "PhysicalResourceId": "hello-BucketPolicy-TR1WBFLASSSN",
    "ResourceProperties": "{\"Bucket\":\"helloza1\",\"PolicyDocument\":{\"Version\":\"2012-10-17\",\"Statement\":[{\"Action\":\"s3:GetObject\",\"Resource\":\"arn:aws:s3:::helloza1/*\",\"Effect\":\"Allow\",\"Principal\":\"*\",\"Sid\":\"PublicReadForGetBucketObjects\"}],\"Id\":\"MyPolicy\"}}",
    "ResourceStatus": "UPDATE_COMPLETE",
    "ResourceStatusReason": null,
    "ResourceType": "AWS::S3::BucketPolicy",
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "Timestamp": "2018-03-25T07:13:25.97Z"
}
{
    "ClientRequestToken": null,
    "EventId": "BucketPolicy-UPDATE_IN_PROGRESS-2018-03-25T07:13:25.655Z",
    "LogicalResourceId": "BucketPolicy",
    "PhysicalResourceId": "hello-BucketPolicy-TR1WBFLASSSN",
    "ResourceProperties": "{\"Bucket\":\"helloza1\",\"PolicyDocument\":{\"Version\":\"2012-10-17\",\"Statement\":[{\"Action\":\"s3:GetObject\",\"Resource\":\"arn:aws:s3:::helloza1/*\",\"Effect\":\"Allow\",\"Principal\":\"*\",\"Sid\":\"PublicReadForGetBucketObjects\"}],\"Id\":\"MyPolicy\"}}",
    "ResourceStatus": "UPDATE_IN_PROGRESS",
    "ResourceStatusReason": "Resource creation Initiated",
    "ResourceType": "AWS::S3::BucketPolicy",
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "Timestamp": "2018-03-25T07:13:25.655Z"
}
{
    "ClientRequestToken": null,
    "EventId": "06a76d60-2ffc-11e8-86b5-50a68a20122a",
    "LogicalResourceId": "hello",
    "PhysicalResourceId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "ResourceProperties": null,
    "ResourceStatus": "UPDATE_COMPLETE",
    "ResourceStatusReason": null,
    "ResourceType": "AWS::CloudFormation::Stack",
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "Timestamp": "2018-03-25T07:13:32.455Z"
}
{
    "ClientRequestToken": null,
    "EventId": "S3Bucket-a38903d9-cb1c-47d4-a3fa-a6cfc114fc44",
    "LogicalResourceId": "S3Bucket",
    "PhysicalResourceId": "helloza",
    "ResourceProperties": null,
    "ResourceStatus": "DELETE_COMPLETE",
    "ResourceStatusReason": null,
    "ResourceType": "AWS::S3::Bucket",
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "Timestamp": "2018-03-25T07:13:32.122Z"
}
{
    "ClientRequestToken": null,
    "EventId": "S3Bucket-e142036b-4b00-40d2-85c2-7329f35661ab",
    "LogicalResourceId": "S3Bucket",
    "PhysicalResourceId": "helloza",
    "ResourceProperties": null,
    "ResourceStatus": "DELETE_IN_PROGRESS",
    "ResourceStatusReason": null,
    "ResourceType": "AWS::S3::Bucket",
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "Timestamp": "2018-03-25T07:13:31.333Z"
}
{
    "ClientRequestToken": null,
    "EventId": "BucketPolicy-e26c9aab-09b3-404c-a800-4a83b8b5576e",
    "LogicalResourceId": "BucketPolicy",
    "PhysicalResourceId": "hello-BucketPolicy-12DJ4X7RUU313",
    "ResourceProperties": null,
    "ResourceStatus": "DELETE_COMPLETE",
    "ResourceStatusReason": null,
    "ResourceType": "AWS::S3::BucketPolicy",
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "Timestamp": "2018-03-25T07:13:30.337Z"
}
{
    "ClientRequestToken": null,
    "EventId": "BucketPolicy-fea4ce56-3e74-445a-bd4f-dcec5051372f",
    "LogicalResourceId": "BucketPolicy",
    "PhysicalResourceId": "hello-BucketPolicy-12DJ4X7RUU313",
    "ResourceProperties": null,
    "ResourceStatus": "DELETE_IN_PROGRESS",
    "ResourceStatusReason": null,
    "ResourceType": "AWS::S3::BucketPolicy",
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "Timestamp": "2018-03-25T07:13:29.792Z"
}

stack information

cat output.json
{
    "Capabilities": null,
    "ChangeSetId": "arn:aws:cloudformation:us-west-2:111111111111:changeSet/gocfn-cloudformation-package-deploy-1521961936/2341ee88-e4ab-4e06-8acf-1251001ffdd8",
    "CreationTime": "2018-03-01T08:57:19.888Z",
    "DeletionTime": null,
    "Description": null,
    "DisableRollback": false,
    "EnableTerminationProtection": false,
    "LastUpdatedTime": "2018-03-25T07:12:52.843Z",
    "NotificationARNs": null,
    "Outputs": [
        {
            "Description": "Name of S3 bucket to hold website content",
            "ExportName": null,
            "OutputKey": "S3BucketSecureURL",
            "OutputValue": "https://helloza1.s3.amazonaws.com"
        },
        {
            "Description": "URL for website hosted on S3",
            "ExportName": null,
            "OutputKey": "WebsiteURL",
            "OutputValue": "http://helloza1.s3-website-us-west-2.amazonaws.com"
        }
    ],
    "Parameters": [
        {
            "ParameterKey": "BucketName",
            "ParameterValue": "helloza1",
            "ResolvedValue": null,
            "UsePreviousValue": null
        }
    ],
    "ParentId": null,
    "RoleARN": null,
    "RollbackConfiguration": {
        "MonitoringTimeInMinutes": null,
        "RollbackTriggers": null
    },
    "RootId": null,
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "StackStatus": "UPDATE_COMPLETE",
    "StackStatusReason": null,
    "Tags": null,
    "TimeoutInMinutes": null
}
Deploy stack with debugging enabled

gocfn provides extensive debugging information when --debug option is given.

$ gocfn deploy --name hello --parameter-overrides "BucketName=helloza123" --template-file stack.yml --debug

{"level":"debug","msg":"Checking if stack exists","stackName":"hello","time":"2018-03-25T18:20:08+11:00"}
{"level":"debug","msg":"Stack exist with status UPDATE_COMPLETE","stackName":"hello","time":"2018-03-25T18:20:10+11:00"}
{"level":"debug","msg":"Running CreateChangeSet","stackName":"hello","time":"2018-03-25T18:20:10+11:00"}
{"level":"debug","msg":"Waiting for changeset to finish","stackName":"hello","time":"2018-03-25T18:20:10+11:00"}
{"level":"debug","msg":"Running ExecuteChangeSet","stackName":"hello","time":"2018-03-25T18:20:42+11:00"}
{"level":"debug","msg":"Waiting for stack to be created/updated","stackName":"hello","time":"2018-03-25T18:20:43+11:00"}
{"level":"debug","msg":"Stack is ready and no streaming is required","stackName":"hello","time":"2018-03-25T18:21:45+11:00"}
{
    "Capabilities": null,
    "ChangeSetId": "arn:aws:cloudformation:us-west-2:111111111111:changeSet/gocfn-cloudformation-package-deploy-1521962408/4c820a55-85dc-47a8-86a9-7eb116c131ee",
    "CreationTime": "2018-03-01T08:57:19.888Z",
    "DeletionTime": null,
    "Description": null,
    "DisableRollback": false,
    "EnableTerminationProtection": false,
    "LastUpdatedTime": "2018-03-25T07:20:42.994Z",
    "NotificationARNs": null,
    "Outputs": [
        {
            "Description": "Name of S3 bucket to hold website content",
            "ExportName": null,
            "OutputKey": "S3BucketSecureURL",
            "OutputValue": "https://helloza123.s3.amazonaws.com"
        },
        {
            "Description": "URL for website hosted on S3",
            "ExportName": null,
            "OutputKey": "WebsiteURL",
            "OutputValue": "http://helloza123.s3-website-us-west-2.amazonaws.com"
        }
    ],
    "Parameters": [
        {
            "ParameterKey": "BucketName",
            "ParameterValue": "helloza123",
            "ResolvedValue": null,
            "UsePreviousValue": null
        }
    ],
    "ParentId": null,
    "RoleARN": null,
    "RollbackConfiguration": {
        "MonitoringTimeInMinutes": null,
        "RollbackTriggers": null
    },
    "RootId": null,
    "StackId": "arn:aws:cloudformation:us-west-2:111111111111:stack/hello/8978e0f0-1d2e-11e8-a95e-503aca41a0c5",
    "StackName": "hello",
    "StackStatus": "UPDATE_COMPLETE",
    "StackStatusReason": null,
    "Tags": null,
    "TimeoutInMinutes": null
}

Package Usage

gocfn package - provides similar parameters to aws cloudformation package with temporary minor differences.

Differences:

  • --use-json option is not available yet, because currently there is no way to transform YAML user tags
  • command can only upload artifacts for CodeUri property for the AWS::Serverless::Function resource, just because it's the only resource I currently use
gocfn package --help
usage: gocfn package --template-file=TEMPLATE-FILE --s3-bucket=S3-BUCKET [<flags>]

Packages the local artifacts (local paths) that your AWS CloudFormation template references.

Flags:
      --help                   Show context-sensitive help (also try --help-long and --help-man).
  -d, --debug                  Enable debug logging.
      --version                Show application version.
      --template-file=TEMPLATE-FILE  
                               The path where your AWS CloudFormation template is located.
      --output-template-file=OUTPUT-TEMPLATE-FILE  
                               The path to the file where the command writes the output AWS CloudFormation template.
      --s3-bucket=S3-BUCKET    The name of the S3 bucket where this command uploads your CloudFormation template.
      --force-upload           Indicates whether to override existing files in the S3 bucket.
      --s3-prefix=S3-PREFIX    A prefix name that the command adds to the artifacts name when it uploads them to the S3 bucket.
      --kms-key-id=KMS-KEY-ID  The ID of an AWS KMS key that the command uses to encrypt artifacts that are at rest in the S3 bucket.

Examples

Package local artifacts and send create output stack file 
gocfn  package --template-file stack.yml --output-template-file stack.out.yml --s3-bucket=example-bucket-name

Directories

Path Synopsis
cmd
gocfn
pkg
cfn
cli
deployer
packager
streamer
uploader
writer

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