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Merge pull request #1583 from awslabs/develop
Release v0.33.0
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Package during `sam deploy` | ||
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What is the problem? | ||
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Today while using `sam deploy` the specified `--template-file` or `--template` is expected to have packaged artifacts references in the given template file. | ||
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This is driven by the following workflow. | ||
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`sam build` -> `sam package --s3-bucket ... --s3-prefix ... --output-template-file packaged.yaml`. | ||
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This workflow builds the requisite code and packages those built artifacts into an s3 bucket, optionally under a given s3 prefix. | ||
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If a developer can optionally cut through this process without requiring an explicit `package` command, but rather have `sam deploy` package to a given s3 bucket, it cuts the number of steps before needing to deploy and test in the cloud. | ||
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This also reduces friction in the `author` and `test` loop. | ||
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Ideal end state. | ||
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`sam build` -> `sam deploy ..... --s3-bucket ....` | ||
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What will be changed? | ||
--------------------- | ||
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Addition of extra parameters that are currently supported by `sam package` over to `sam deploy` with all of them being optional. | ||
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Additional parameters that need to be on `sam deploy` that are not on `sam package`. | ||
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* `--metadata` | ||
* `--use-json` | ||
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Parameters that dont need to be added. | ||
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* `--output-template-file` | ||
* An explicit `output-template-file` is created on the fly during packaging in the deploy phase. | ||
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If the expectation is to package and deploy in one command, One can now do. | ||
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`sam deploy --stack-name sam-package-on-deploy --capabilities CAPABILITY_IAM --s3-bucket sam-package-bucket` | ||
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There is no explicit need to pass in a `--template-file` or `--template` parameter, if one is not passed in it to defaults to trying to find the template.yaml that was generated by `sam build` which is located at `.aws-sam/build/template.yaml` | ||
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The old method of deploying pre-packaged artifacts will continue to work as before. | ||
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* `sam deploy --template-file packaged.yaml --stack-name sam-package-on-deploy --capabilities CAPABILITY_IAM` | ||
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If a deployment is done without running `sam build` prior we still go ahead and deploy with the given `template.yaml` in the project root. This might still result in a successful deploy, but not a deploy with the correct build artifacts. | ||
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Future of `sam package`? | ||
--------------------- | ||
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* `sam package` will continue to exist in the state it is today and will continue to be improved upon separately. | ||
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Success criteria for the change | ||
------------------------------- | ||
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User do not require to run `sam package` as part of their author test loop, except for CI/CD purposes, where `sam package` can be run and the packaged template file can be passed to cloudformation deploy actions. | ||
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Out-of-Scope | ||
------------ | ||
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The s3 bucket where the packaged artifacts go is not abstracted in this design. In the future, the s3 bucket could be specified via a configuration file. | ||
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This is currently in design in : https://github.com/awslabs/aws-sam-cli/pull/1503 | ||
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User Experience Walkthrough | ||
--------------------------- | ||
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`sam build` -> `sam deploy` | ||
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`sam build` -> `sam package` -> `sam deploy` | ||
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Provide identical experiences in terms of a deploying the same stack, with exactly same artifacts. | ||
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Implementation | ||
============== | ||
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CLI Changes | ||
----------- | ||
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* Add new arguments `--metadata`, `--use-json` and modify existing `--template-file` or `--template` to look for a default `template.yaml` that exists under `.aws-sam/build/` | ||
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### Breaking Change | ||
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* Not a breaking change , but there are optional behavorial changes that a user can subscribe into by supplying a non-packaged template file and an s3 bucket. | ||
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Design | ||
------ | ||
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* Changes to Deploy command's click options | ||
* Attempt to package on every deploy if an appropriate s3 bucket is specified and deploy using the output template file during package. | ||
* If a pre-packaged template is specified, an attempt to package does not change the template and the same template is used for deploy. | ||
* The parameters that share the same name across package and deploy are collapsed together. eg: `--kms-key-id` , if a kms-key-id is specified that same key is used across both packaging and deploy purposes. | ||
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`.samrc` Changes | ||
---------------- | ||
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None | ||
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Security | ||
-------- | ||
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**What new dependencies (libraries/cli) does this change require?** | ||
N/A | ||
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**What other Docker container images are you using?** | ||
N/A | ||
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**Are you creating a new HTTP endpoint? If so explain how it will be | ||
created & used** | ||
N/A | ||
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**Are you connecting to a remote API? If so explain how is this | ||
connection secured** | ||
N/A | ||
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**Are you reading/writing to a temporary folder? If so, what is this | ||
used for and when do you clean up?** | ||
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Possibly reading from a configuration file in the future. | ||
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**How do you validate new .samrc configuration?** | ||
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N/A | ||
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What is your Testing Plan (QA)? | ||
=============================== | ||
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Goal | ||
---- | ||
* Regression tests on previous functionality of `sam deploy` | ||
* Integration tests on automatic packaging on `sam deploy` | ||
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Pre-requesites | ||
-------------- | ||
N/A | ||
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Test Scenarios/Cases | ||
-------------------- | ||
* Re-deploy a stack that was deployed with a packaged template before hand using the new sam deploy menthod. | ||
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`sam deploy --template-file packaged.yaml --stack-name sam-stack --capabilities CAPABILITY_IAM` | ||
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`sam deploy --stack-name sam-stack --capabilities CAPABILITY_IAM` | ||
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The new stack should not have any changes. | ||
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Expected Results | ||
---------------- | ||
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* Regresssion and Integration tests pass. | ||
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Documentation Changes | ||
===================== | ||
* Required nature of `--template-file`, `--template` parameter has a series of defaults that are looked at during `sam deploy` similair to `sam package`. | ||
* If `--template-file` or `--template` points to a non-packaged template-file, `--s3-bucket` becomes required to be able to effectively package and deploy in one command using `sam deploy`. | ||
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Open Issues | ||
============ | ||
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Task Breakdown | ||
============== | ||
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- \[x\] Send a Pull Request with this design document | ||
- \[ \] Build the command line interface | ||
- \[ \] Build the underlying library | ||
- \[ \] Unit tests | ||
- \[ \] Functional Tests | ||
- \[ \] Integration tests | ||
- \[ \] Run all tests on Windows | ||
- \[ \] Update documentation |
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