VictorTrustyDev/EVMOS-sample-scripts: Scripts and notes of how to setup one or multiple EVMOS networks with validators & IBC relayer to connect them. For development and testing purpose only · GitHub

I wrote hundred lines of comments which explains every steps in each script file and each readme file, hope that helps you guys in exploring Evmos & Cosmos Ecosystem

Not only EVMOS, you can use this script to build for other chains like cosmos,... Look at this to know how to do it

• Go 1.20.2+ to build chains
• jq
• yq + tomlq (build on top of jq)
• Rust 1.60+ to build Hermes - IBC relayer
• docker & docker compose
• Node JS & Yarn to build & run Big Dipper 2.0 for Cosmos based chains
• PostgreSQL client (psql) for postgres 12.5 to setup Big Dipper
• Hasura cli for bdjuno

You can find commands to install the above tools here

I created all of the following samples on an Ubuntu 22.04 LTS machine with 4 CPU 16 GB RAM. It can run

• 2 EVMOS chains
• 1 Hermes as IBC relayer to connect those chains
• 2 bdjuno & hasura as block explorer's backend & graphql service
• 2 Big Dipper 2.0 as block explorer's frontend

without any performance issue (CPU ~20-80% per core, ram ~50% via htop)

• Script to build EVMOS chains and run with docker compose
• Script to build & setup Hermes as an IBC relayer
• Script to setup Big Dipper (backend bdjuno with hasura as graphql service & frontend Big Dipper 2.0 for Cosmos based chains)

• Evmos v12.1.6
• Hermes v1.5.0
• bdjuno branch evmos
• Big Dipper 2.0 for Cosmos chains v2.x

• You can change their version by updating file env.sh
• This sample is using keyring test, you may need to change to file for secure your test env if needed in env.sh
• You can create override-env.sh file and override values of env.sh
• The sample.cosmos-and-evmos.override-env.sh file contains example which tell you how to override variables of env.sh and make the chain 1 use Cosmos (gaia) source, rename it to override-env.sh to make it effectives
• The sample.expose-big-dipper-ui.override-env.sh file contains example which tell you how to override variables of env.sh and make the block explorer UI (Big Dipper 2.0) accessible from outside world, rename it to override-env.sh to make it effectives

(Not recommended) Tips: There is script named all-in-one.sh, if you are using an OS which supports systemd and some required tools, you can create everything just by running this script (EVMOS x2 + Big Dipper x2 + Hermes)