Cosmovisor Setup (optional)

Prerequisites:

• A Layer node machine configured like this.

Build and configure Cosmovisor

1. Clone the cosmos repo, change directory to cosmos-sdk

git clone https://github.com/cosmos/cosmos-sdk && cd cosmos-sdk/tools/cosmovisor

1. Build cosmovisor with the command:

go build ./cmd/cosmovisor

1. Add the following to the end of your ~/.bashrc or ~/.zshrc file:

# cosmovisor
export DAEMON_NAME=layerd
export DAEMON_HOME=$HOME/.layer
export DAEMON_RESTART_AFTER_UPGRADE=true
export DAEMON_ALLOW_DOWNLOAD_BINARIES=false
export DAEMON_POLL_INTERVAL=300ms
export UNSAFE_SKIP_BACKUP=true
export DAEMON_PREUPGRADE_MAX_RETRIES=0

Use source ~/.bashrc or source ~/.zshrc to load the variables.

1. Gather binaries. You can clone the repo and create a build at each tag, or download them from the repo. For each release, select the binary that matches your OS / cpu architecture. (e.g. "Darwin_arm64" for macOS,"Linux_x86_x64" for most cloud machines...)

We will save them to a folder called binaries, but you can keep them anywhere you like. Download each binary to it's own folder. (This command is just an example, so be sure that you know which binaries to get before you start! If you're not sure, ask in our discord):

# v0.2.1
mkdir ~/binaries && cd ~/binaries && mkdir v0.2.1 && cd v0.2.1 && wget https://github.com/tellor-io/layer/releases/download/v0.2.1/layer_Linux_x86_64.tar.gz && tar -xvzf layer_Linux_x86_64.tar.gz
# v0.3.0
cd ~/binaries && mkdir v0.3.0 && cd v0.3.0 && wget https://github.com/tellor-io/layer/releases/download/v0.3.0/layer_Linux_x86_64.tar.gz && tar -xvzf layer_Linux_x86_64.tar.gz
# v0.4.2...
...

To check that these downloaded and extracted correctly: ls ~/binaries

1. Once you have all of the binaries downloaded, initialize Cosmovisor and add all the upgrades. Change the file paths in the command to match the path to each binary exactly:

# set up cosmovisor. Each command is done seperatly.
./cosmovisor init ~/binaries/v0.2.1/layerd
./cosmovisor add-upgrade v0.3.0 ~/binaries/v0.3.0/layerd
# ...

1. To start your node with cosmovisor managing upgrades:

cosmovisor run start --api.enable --api.swagger --price-daemon-enabled=false --panic-on-daemon-failure-enabled=false --key-name $ACCOUNT_NAME