Cloud network setup scripts

[greg-szabo]

Additional scripts to set up testnets in AWS.
This change depends on #1208 because that PR fixes a minor bug when using the init command. (In some cases the word seed was not returned.)

[codecov]

Codecov Report

Merging #1234 into develop will not change coverage.
The diff coverage is n/a.

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##           develop    #1234   +/-   ##
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  Coverage    63.46%   63.46%           
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  Files          117      117           
  Lines         6927     6927           
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  Hits          4396     4396           
  Misses        2276     2276           
  Partials       255      255

[greg-szabo]

Since this hasn't been reviewed for a while now but I need to work on things that depend on this change, I'm going to set it to WIP and keep adding stuff to it.

[jackzampolin]

@greg-szabo when you are ready for a review here please holler! I would be happy to run through this code.

[cwgoes]

@jackzampolin Ready for a review!

[jackzampolin]

So I've only worked through some of the DO stuff, will do the AWS work next week. TL;DR the ansible scripts work well and setup nodes properly. The terraform for DO is broken because of the duplicate SSH key issue (this is not easily fixable). I was running the following commands to spin up a validator and full node in DO:

TESTNET_NAME=remotenetvalidators CLUSTER_NAME=remotenetvalidators SERVERS=1 make validators-start-do extract-config-do
TESTNET_NAME=remotenetfullnodes CLUSTER_NAME=remotenetfullnodes SERVERS=1 make fullnodes-start-do

Getting up and running was a bit difficult due to a lack of python environment. (Maybe a requirements.txt or setup.py to ease that). Also there was not a list of dependancies when I started (this was a known issue)

Dependancies:

• Ansible (pip install ansible)
• Terraform (https://www.terraform.io/intro/getting-started/install.html)
• Python deps (need to work with @greg-szabo and @zramsay to get these listed)

[jackzampolin]

This line needs to have a -u root there.

[cwgoes]

According to @greg-szabo this is ready-for-review, tagged as such.

[cwgoes]

Let's add a disclaimer to the effect that this should be seen as an example cloud configuration template, and possible inspiration to users testing Tendermint or validators setting up infrastructure, but it hasn't been audited and should be considered a prototype only.

[jackzampolin]

Then we can merge this big PR and break the work up into smaller segments/PRs later. What do you think @greg-szabo ?

[greg-szabo]

DigitalOcean scripts were made obsolete. I keep telling Bucky that devops tooling works in a much faster pace then the review process at cosmos-sdk. I can add minor PRs every few days but the newer PRs will depend on older PRs and if review takes weeks than a bunch of work will pile up.

[greg-szabo]

Please review and merge this one. We'll figure out the rest afterwards.

[cwgoes]

utACK, approving per @jackzampolin request.

Moved changelog entries to PENDING.md, added a disclaimer to commands in networks/Makefile.

I have not reviewed the cloud configs (and cannot do so since this PR is 60 files and I don't know Ansible syntax).