Nagini

Nagini was a snake who used to compete at Battlesnake.

The name is not to be confused with all of the other battlesnakes named Nagini.

Status

This project is no longer in use, and not currently supported or maintained. There are known security advisories for outdated dependencies with no current plans to address or update them, and I don't recommend running this without due dilligence. It is left here for historical reasons.

Getting Started

To start your Phoenix server:

• Install dependencies with mix deps.get
• Set up the event store with mix do event_store.create, event_store.init
• Start Phoenix endpoint with mix phx.server

Now you can use localhost:4000 as a Battlesnake endpoint.

The logger is configured to log at the debug level (very verbose) and logs are stored in /tmp/nagini.log. This is a workaround for Nanobox stdout log streaming being broken.

To start your Ember admin frontend:

• Change to the frontend directory with cd admin
• Install dependencies with npm install
• Start Ember with ./node_modules/.bin/ember serve

Now you can view localhost:4200/admin/

Configuration

To customize your snake, set these environment variables:

• SNAKE_COLOR
• SNAKE_HEAD
• SNAKE_TAIL

To tune the solver, set these environment variables:

• SOLVER_TIMEOUT=infinity
• SOLVER_DEPTH=0

Development with Nanobox

• Install Docker
• Install Nanobox CLI and log in
• nanobox dns add local nagini.local
• nanobox run
• Install dependencies and run start commands as normal

Note that Nanobox's Elixir engine may run a different version of Elixir than this project's .tool-versions lock file expects. This may not behave as intended.

Deployment with Nanobox

Test with a dry-run first:

• nanobox evar add dry-run PORT=8080 MIX_ENV=prod EMBER_ENV=production
• nanobox evar add dry-run ADMIN_USER=fixme ADMIN_PASS=fixme
• nanobox evar add dry-run APPSIGNAL_APP_NAME="Nagini" APPSIGNAL_APP_ENV="dry-run" APPSIGNAL_PUSH_API_KEY="FIXME"
• nanobox deploy dry-run
• Test the dry-run deployed endpoint

Update the release version:

• Edit mix.exs

Deploy:

• nanobox remote add app-name
• nanobox evar add app-name PORT=8080 MIX_ENV=prod EMBER_ENV=production
• nanobox evar add app-name ADMIN_USER=fixme ADMIN_PASS=fixme
• nanobox evar add app-name APPSIGNAL_APP_NAME="Nagini" APPSIGNAL_APP_ENV="prod" APPSIGNAL_PUSH_API_KEY="FIXME"
• nanobox deploy

Monitoring

Monitoring is set up to work with AppSignal if the environment is configured.

To read the Nanobox server logs:

• nanobox console app-name web.main
• tail -f /tmp/nagini.log

IEx Console for Nanobox Remote

• nanobox console app-name web.main
• iex -S mix phx.server --no-start

The --no-start option prevents the normal applications from being started because that would throw errors such as the port being in use.

PSQL Usage for Nanobox Local

• Find IP and password with nanobox info local
• PGPASSWORD="" psql -h IP -p 5432 -U nanobox gonano

PSQL Usage for Nanobox Remote

• Start the tunnel with nanobox tunnel data.event_store -p 5432
• Find the password from Nanobox dashboard
• psql -p 5432 -h 127.0.0.1 gonano nanobox
• Enter the password`

License

Copyright 2019 Justin Workman. All Rights Reserved.