Deploy error fix

[PG-practice]

Issue #, if available:

• pipeline deployment error
• pipeline execution error, one of which is An action in this pipeline failed because one or more variables could not be resolved: Action name=BuildCodeDeployArtifacts #4

Description of changes:

• deploy error fix

  • In iac/pipeline/codepipeline.yaml, AWS::REGION causes error during deployment. So fix the typo to AWS::Region

• pipeline execution error fix

  • After deploying pipeline, BuildCodeDeployArtifacts stage fails because of An action in this pipeline failed because one or more variables could not be resolved: Action name=BuildCodeDeployArtifacts #4 . To fix it, remove OutputFileName property from the stage
  • In BuildCodeDeployArtifacts stage, fix the taskdef.json path.

• Other

  • iac/pipeline/codebuild/buildspec-container.yaml hardcodes region as us-east-1. change it to $AWS_DEFAULT_REGION to use in other regions.
  • remove an unused file.

After the fixes above, I confirmed the pipeline deployment and pipeline execution succeeded without errors.

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