Feature: add terraform vault configuration
This PR import the Vault configuration as Terraform config file.
This also add gitlab-ci authentification for packer ci (see: https://docs.gitlab.com/ee/ci/secrets/convert-to-id-tokens.html)
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This PR import the Vault configuration as Terraform config file.
This also add gitlab-ci authentification for packer ci (see: https://docs.gitlab.com/ee/ci/secrets/convert-to-id-tokens.html)