Get Vault working

[johnboyes]

See:

• https://cloud.spring.io/spring-cloud-vault/
• https://cloud.spring.io/spring-cloud-config/2.0.x/multi/multi__spring_cloud_config_server.html#_vault_backend
• https://stackoverflow.com/questions/42169804/how-to-use-spring-cloud-config-with-a-git-and-vault-composite-environment-reposi
• https://dzone.com/articles/integrating-vault-with-spring-cloud-config-server
• https://github.com/steve-perkins/spring-config-server
• https://github.com/steve-perkins/spring-config-sample-app
• http://blog.marcosbarbero.com/integrating-vault-spring-cloud-config/
• https://learn.hashicorp.com/vault/?track=getting-started#getting-started

[johnboyes]

How to generate the client token to the server?

• https://stackoverflow.com/questions/46062274/spring-cloud-config-with-git-vault-backend-token-passthrough

• http://work.haufegroup.io/spring-cloud-config-and-vault/