feat: local dev environment

[czarcas7ic]

What is the purpose of the change

As it stands, it is not simple to quickly test a change in a local dev environment. This introduces a modified LocalOsmosis that is lightweight and makes it very easy to spin up a local net to test your changes. The docker image also creates a new genesis on build, preventing any issues that have arose in the past from hardcoded genesis files.

The basic process is as follows:

1. Make your local changes
2. Run make localnet-build
3. Run make localnet-start. Your local network has now started. Query it with your local daemon (i.e osmosisd status)
4. Run make localnet-keys to add all 10 keys to your keyring
5. Run make localnet-remove to remove all block data

Testing and Verifying

This code was tested locally in an arm64 environment

Documentation and Release Note

• Does this pull request introduce a new feature or user-facing behavior changes? yes
• Is a relevant changelog entry added to the Unreleased section in CHANGELOG.md? yes

[codecov-commenter]

Codecov Report

Merging #1554 (44a820a) into main (16007fb) will not change coverage.
The diff coverage is n/a.

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##             main    #1554   +/-   ##
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  Coverage   19.47%   19.47%           
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  Files         242      242           
  Lines       32258    32258           
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  Hits         6282     6282           
  Misses      24822    24822           
  Partials     1154     1154           

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[niccoloraspa]

One little improvement could be not to run this script during the docker build phase but running as an entrypoint script of the docker container.

In this way we can avoid rebuilding the image if we want to modify a parameter of the genesis.
Building takes 1-2 mins while running the script should be in the order of seconds

The way to do that would be to modifying the Dockerfile like this:

...
WORKDIR $HOME
RUN apk update \
 && apk add jq \
 && rm -rf /var/cache/apk/*
RUN chmod +x /setup.sh

# Remove the RUN /setup

EXPOSE 26656
EXPOSE 26657
EXPOSE 1317

ENTRYPOINT ["/setup.sh"]
CMD ["osmosisd", "start"]

And in the setup.sh:

#!/usr/bin/env sh
set -eu

<STANDARD CONTENT>

exec "$@" 

The exec part will execute the CMD part of the Dockerfile after is has executed the script

[czarcas7ic]

The only problem with this is the user would be recreating the genesis process on every start right? This process should only be done once at compilation time I think, and if the user wanted to modify a genesis param, they are probably better off recompiling anyway right?

[niccoloraspa]

LGTM! Nice stuff! It's going to be very useful!

I added some improvements here and there.
As always, take what you like.

I'm approving the PR as it's working as it is.

[czarcas7ic]

@nikever @p0mvn thanks so much for the review, both had awesome suggestions that I ended up implementing