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cosmovisor-sync.md

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Cosmovisor Sync

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.

{% hint style="info" %} At the time of writing there are no upgrade binaries. Use v3.0.1. {% endhint %}

{% code overflow="wrap" %}

# genesis version v3.0.1
mkdir ~/binaries && cd ~/binaries && mkdir v2.0.0-alpha1 && cd v2.0.0-alpha1 && 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
...

{% endcode %}

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 ~/locaion/of/upgrade/binary
# ...
  1. To start your node with cosmovisor managing upgrades:

{% code overflow="wrap" %}

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

{% endcode %}