[IT-3523] Run the deploy for test branches

Run the deploy pipeline for pushes to branches that start with `test/`
to automate the creation of test artifacts and streamline the manual
testing process.

Pushing directly to a branch requires write permission to the repo,
restricting who can create a test artifact.

.github/workflows/deploy.yaml

@@ -28,7 +28,7 @@ jobs:
   deploy:
     name: Deploy to AWS org-sagebase-imagecentral
     runs-on: ubuntu-latest
-    if: ${{ github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags/v') }}
+    if: ${{ github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/heads/test/') || startsWith(github.ref, 'refs/tags/v') }}
     needs: [ "validate" ]
     permissions:
       id-token: write

README.md

@@ -41,10 +41,25 @@ source_profile = jsmith@imagecentral
 
 Now you will be able to build an image and deploy it to Imagecentral.
 
+### Image Accessability
+This project is setup to build publicly accessible images.  To change it to
+build private images please refer to the [packer documentation](https://packer.io/docs/builders/amazon-ebs.html)
+for `ami_users` and `snapshot_users`options.
+
+### Testing
+As a pre-deployment step we syntatically validate our packer json
+files with [pre-commit](https://pre-commit.com).
+
+Please install pre-commit, once installed the file validations will
+automatically run on every commit.  Alternatively you can manually
+execute the validations by running `pre-commit run --all-files`.
+
 ### Manual AMI Build
 If you would like to test building an AMI run:
 ```
 cd src
+packer plugins install github.com/hashicorp/amazon
+packer plugins install github.com/hashicorp/ansible
 AWS_PROFILE=packer-service-imagecentral AWS_DEFAULT_REGION=us-east-1 packer build -var AmiImageName=my-test-image -var PACKER_LOG=1 template.json
 ```
 
@@ -56,19 +71,10 @@ Packer will do the following:
 __Notes__:
  * Packer deploys a new AMI to the AWS account specified by the AwsProfile
  * Subsequent builds may require the [-force](https://packer.io/docs/commands/build.html#force) flag
+ * Test AMIs can be built automatically by pushing directly to a branch beginning with `test/`
 
-### Image Accessability
-This project is setup to build publicly accessible images.  To change it to
-build private images please refer to the [packer documentation](https://packer.io/docs/builders/amazon-ebs.html)
-for `ami_users` and `snapshot_users`options.
-
-### Testing
-As a pre-deployment step we syntatically validate our packer json
-files with [pre-commit](https://pre-commit.com).
-
-Please install pre-commit, once installed the file validations will
-automatically run on every commit.  Alternatively you can manually
-execute the validations by running `pre-commit run --all-files`.
+The process for testing the integration of an AMI with cloudformation init scripts
+is outlined in the [`organizations-infra` docs for service catalog](https://github.com/Sage-Bionetworks-IT/organizations-infra/blob/master/sceptre/scipool/README.md)
 
 ### CI Workflow
 The workflow to provision AWS AMI is done using pull requests.