Appendix

Developing with ARM chips

MacOS users with ARM chips may want to test Feather on linux/amd64 instances. In cases like this, you could setup Feather in a cloud VM.

# Create a VM instance in GCP...

# Create a GKE cluster in GCP...

# SSH into the newly-created instance

gcloud compute ssh myuser@myhost

# Update/Upgrade packages

sudo apt update && sudo apt upgrade

# Install golang

export LATEST_GO_VERSION="$(curl --silent https://go.dev/VERSION?m=text)"

export GO_TAR_FILE="$LATEST_GO_VERSION.linux-amd64.tar.gz"

export GO_DOWNLOAD_URL="https://golang.org/dl/$GO_TAR_FILE"

wget $GO_DOWNLOAD_URL -P ~

sudo rm -rf /usr/local/go

sudo tar -C /usr/local -xzf ~/$GO_TAR_FILE

rm -f ~/$GO_TAR_FILE

# Add go binary to PATH

export GO_BIN="export PATH=$PATH:/usr/local/go/bin"

grep -qxF "$GO_BIN" ~/.profile || echo $GO_BIN >>~/.profile

source ~/.profile

# Add go installation folder to PATH

export GO_PATH="export PATH=$PATH:$(go env GOPATH)/bin"

grep -qxF "$GO_PATH" ~/.profile || echo $GO_PATH >>~/.profile

source ~/.profile

# Verify golang is installed

go version

# Install make for Makefiles

sudo apt install make

# Build feather binary from source

git clone https://github.com/terra-money/feather

cd feather

git checkout dev

cd cli

make install

# Install docker (omitted)

# https://docs.docker.com/engine/install/ubuntu/

# Allow non-root access to docker

# https://docs.docker.com/engine/install/linux-postinstall/

sudo groupadd docker

sudo usermod -aG docker $USER

newgrp docker

# Start docker on VM startup and verify docker is running

sudo systemctl start docker

sudo systemctl enable docker.service

sudo systemctl enable containerd.service

sudo systemctl status docker

# Install gcloud CLI (omitted)

# https://cloud.google.com/sdk/docs/install#deb

# Login with an account with access to the GKE cluster

gcloud init

# Install kubectl and required plugins

# https://cloud.google.com/kubernetes-engine/docs/how-to/cluster-access-for-kubectl#gcloud

sudo apt-get install kubectl

sudo apt-get install google-cloud-sdk-gke-gcloud-auth-plugin

# Configure access to cluster

export CLUSTER_NAME="<your cluster name>"

export CLUSTER_REGION="<your cluster region>"

gcloud container clusters get-credentials $CLUSTER_NAME --region=$CLUSTER_REGION

# Import key for feather daemon to sign txs

feather config keys add mykey --recover

# Init feather daemon config

feather validator config init --moniker mymoniker

# Start feather daemon

export DOCKER_USER="<your docker username>"

export DOCKER_PW="<your docker password>"

feather validator daemon start --key mykey --docker-registry dockerhub --docker-username $DOCKER_USER --docker-password $DOCKER_PW