Here are the minimal hardware configs required for running a validator/sentry node
- 8GB RAM
- 4vCPUs
- 200GB Disk space
Install deps
sudo apt-get install build-essential jq
Install Go 1.15.x (there are some issues with SDK keyring and 1.16.x) The official instructions can be found here: https://golang.org/doc/install
First remove any existing old Go installation as root
sudo rm -rf /usr/local/go
Download the software:
curl https://dl.google.com/go/go1.15.11.linux-amd64.tar.gz | sudo tar -C/usr/local -zxvf -
Update environment variables to include go (copy everything and paste)
cat <<'EOF' >>$HOME/.profile
export GOROOT=/usr/local/go
export GOPATH=$HOME/go
export GO111MODULE=on
export GOBIN=$HOME/go/bin
export PATH=$PATH:/usr/local/go/bin:$GOBIN
EOF
source $HOME/.profile
To verify that Go is installed:
go version
Should return go version go1.15.11 linux/amd64
git clone https://github.com/BitCannaGlobal/testnet-bcna-cosmos.git
cd testnet-bcna-cosmos
git checkout v0.testnet7
make build #it build the binary in build/ folder
To know the version:
build/bcnad version
The output must be 0.testnet7
Is the versión match, now you have two options
- Move the binary to the /usr/local/bin path with:
sudo mv build/bcnad /usr/local/bin/ - Compile and install the binary in the $GOPATH path:
make install
Cosmovisor is a small process manager for Cosmos SDK binaries that monitors the governance module via stdout for incoming chain upgrade proposals. If it sees a proposal that gets approved, it can be run manually or automatically to download the new binary, stop the current binary, run the migration script, replace the old node binary with the new one, and finally restart the node with the new genesis file.
To install cosmovisor, run the following command (it takes some minutes):
go get github.com/cosmos/cosmos-sdk/cosmovisor/cmd/cosmovisor