Add ssh key to eb instances, add local script, env vars for redis and mongo

[codeclimate[bot]]

Code Climate has analyzed commit 8423af7e and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 60.5% (0.1% change).

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