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Zorluk: OrtaAWS CodeBuild

A developer is configuring an AWS CodeBuild project that runs as a stage in an AWS CodePipeline. During the build execution, a script generates a dynamic version identifier based on the current git commit hash. The developer needs to pass this dynamically generated version identifier directly to a subsequent deployment stage in the pipeline without creating external dependencies. Which configuration in the `buildspec.yml` file will achieve this?

  1. Define the variable name under the `exported-variables` sequence in the `env` block.Cevap
  2. B
    Define the variable under the `variables` mapping in the `env` block.
  3. C
    Write the version identifier to a temporary text file and declare it under the `files` sequence in the `artifacts` block.
  4. D
    Store the version identifier in AWS Systems Manager Parameter Store during the `post_build` phase and retrieve it in the deployment stage.

Cevap

Define the variable name under the `exported-variables` sequence in the `env` block.
Defining the variable name under the `exported-variables` sequence in the `env` block allows CodeBuild to export the value of environment variables that are dynamically set during the build execution. AWS CodePipeline captures these exported variables and makes them available to downstream pipeline actions as variables.

Adım Adım Çözüm

1
Add the desired environment variable name to the `exported-variables` sequence under the `env` block in `buildspec.yml`.
CodeBuild is configured to monitor and capture this specific environment variable's value at the end of the build execution.
This registers the variable name so CodeBuild knows to export it.
2
Assign the dynamic commit-based value to the environment variable inside one of the build commands, such as using `export MY_VERSION=$(git rev-parse --short HEAD)`.
The variable is populated with the dynamically generated value during the build execution.
This updates the environment variable's value dynamically during runtime.
3
Reference the exported variable in downstream CodePipeline actions using the namespace syntax.
The subsequent stages in AWS CodePipeline can access the version identifier natively.
This completes the transfer of the dynamic variable across the pipeline without external API calls or storage.

Anahtar Kavram

AWS CodeBuild Exported Variables
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Konular

AWS CodeBuild

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