Build Linux binary from source and become a Sentry Node Operator

Preresquites

Operating System

This tutorial assumes that your node is running Ubuntu LTS version (i.e: 18.04, 20.04 or 22.04). It does not work with Ubuntu 16.04 or older versions.

Go version

The Golang version should be from 1.18 and above If you have not installed it yet, you can refer to this document.

Make sure that $GOPATH is in your $PATH. It's the crucial part of this tutorial.

Make

If your node does not have Make, install using: sudo apt update && sudo apt install make

Gcc

You need to install Gcc to build the binary. Type: sudo apt update && sudo apt install gcc

Build the binary from source

Please define the $ORAI_HOME environment variable which will be used as the working directory, in this tutorial we will assume that your $ORAI_HOME is root. If you don't define it, all of the following installations will be using your $HOME folder as $ORAI_HOME, please replace $ORAI_HOME with $HOME in the corresponding commands (except export ORAI_HOME command).

Make sure your user has enough permissions to write data to the $ORAI_HOME folder.

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# Export ORAI_HOME env variable
export ORAI_HOME="/root"

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# clone the Oraichain network repository
cd $ORAI_HOME
git clone https://github.com/oraichain/orai.git

# enter the repo
cd orai

# checkout the latest tag
git checkout <tag>

The <version-tag> will need to be set to either a testnet or the latest mainnet version tag.

The current mainnet version tag will be v0.41.7-1s-block-time - i.e:

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git checkout v0.41.7-1s-block-time

Next, you should be able to build the binary file using the below command:

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# go to main folder ($ORAI_HOME/orai/orai)
cd orai
go mod tidy
make install

After running the above commands, your oraid binary can be found in $GOPATH/bin. To confirm that the installation is succeeded, you can run (please make sure that $GOPATH/bin is in your $PATH):

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oraid version

The current binary version for Linux users is v0.41.7-1s-block-time

Libwasmvm version: oraid query wasm libwasmvm-version, which should give: 1.5.2

Initialize Orai Node

Use oraid to initialize your node (replace the NODE_NAME with a name of your choosing):

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oraid init NODE_NAME --home $ORAI_HOME/.oraid

Download and place the genesis file in the orai config folder:

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wget -O $ORAI_HOME/.oraid/config/genesis.json https://raw.githubusercontent.com/oraichain/oraichain-static-files/master/genesis.json

Finally, your working directory should be like below:

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#tree $ORAI_HOME/.oraid/
$ORAI_HOME/.oraid/
├── config
│   ├── app.toml
│   ├── client.toml
│   ├── config.toml
│   ├── genesis.json
│   ├── node_key.json
│   └── priv_validator_key.json
└── data
    └── priv_validator_state.json

2 directories, 7 files

Set Up Cosmovisor

(You may also refer to the Cosmovisor installation instructions.) Set up cosmovisor to ensure any future upgrades happen flawlessly. To install Cosmovisor:

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go install cosmossdk.io/tools/cosmovisor/cmd/cosmovisor@latest

Create the required directories, and Copy the current oraid binary into the cosmovisor/genesis folder:

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mkdir -p $ORAI_HOME/.oraid/cosmovisor
mkdir -p $ORAI_HOME/.oraid/cosmovisor/genesis
mkdir -p $ORAI_HOME/.oraid/cosmovisor/genesis/bin
mkdir -p $ORAI_HOME/.oraid/cosmovisor/upgrades
cp $GOPATH/bin/oraid $ORAI_HOME/.oraid/cosmovisor/genesis/bin

Set the environment variables

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echo "# Setup Cosmovisor" >> ${HOME}/.profile
echo "export ORAI_HOME=/root" >> ${HOME}/.profile
echo "export DAEMON_NAME=oraid" >> ${HOME}/.profile
echo "export DAEMON_HOME=$HOME/.oraid" >> ${HOME}/.profile
echo "export DAEMON_ALLOW_DOWNLOAD_BINARIES=false" >> ${HOME}/.profile
echo "export DAEMON_LOG_BUFFER_SIZE=512" >> ${HOME}/.profile
echo "export DAEMON_RESTART_AFTER_UPGRADE=true" >> ${HOME}/.profile
echo "export UNSAFE_SKIP_BACKUP=true" >> ${HOME}/.profile
source ~/.profile

To check your work, ensure the version of cosmovisor and oraid are the same:

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cosmovisor version
oraid version

Finally, your working directory should be like below:

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$ORAI_HOME/.oraid/
├── config
│   ├── app.toml
│   ├── client.toml
│   ├── config.toml
│   ├── genesis.json
│   ├── node_key.json
│   └── priv_validator_key.json
├── cosmovisor
│   ├── current -> /root/.oraid/cosmovisor/genesis
│   ├── genesis
│   │   └── bin
│   │       └── oraid
│   └── upgrades
└── data
    └── priv_validator_state.json

7 directories, 8 files

Download Chain Data

Download liblz4-tool to handle the compressed file, then Download & Decompress the snapshot:

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cd $ORAI_HOME/.oraid
sudo apt-get install wget liblz4-tool aria2 -y
wget -O oraichain_latest.tar.lz4 https://orai.s3.us-east-2.amazonaws.com/snapshots/oraichain_latest.tar.lz4
lz4 -c -d oraichain_latest.tar.lz4 | tar -x -C $ORAI_HOME/.oraid

Optional (problem with binnary version v0.41.6)

In the data folder, if the file upgrade-info.json does not exist, you can ignore this section. Otherwise, open the upgrade-info.json file and check the version.

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cat $ORAI_HOME/.oraid/data/upgrade-info.json

If version is not "v0.41.6" then delete this file

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rm $ORAI_HOME/.oraid/data/upgrade-info.json

Edit config

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vim $ORAI_HOME/.oraid/config/config.toml

Update seed address

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seeds = "[email protected]:26656,[email protected]:26656,[email protected]:26656,[email protected]:26656"

Set Up Orai Service

Set up a service to allow cosmovisor to run in the background as well as restart automatically if it runs into any problems:

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cat > /tmp/orai.service <<EOF
[Unit]
Description=Cosmovisor daemon
After=network-online.target
[Service]
Environment="ORAI_HOME=/root"
Environment="DAEMON_NAME=oraid"
Environment="DAEMON_HOME=${ORAI_HOME}/.oraid"
Environment="DAEMON_RESTART_AFTER_UPGRADE=true"
Environment="DAEMON_ALLOW_DOWNLOAD_BINARIES=false"
Environment="DAEMON_LOG_BUFFER_SIZE=512"
Environment="UNSAFE_SKIP_BACKUP=true"
User=$USER
ExecStart=$GOPATH/bin/cosmovisor run start --home ${ORAI_HOME}/.oraid --minimum-gas-prices=0.001orai
Restart=always
RestartSec=3
LimitNOFILE=infinity
LimitNPROC=infinity
[Install]
WantedBy=multi-user.target
EOF

Move this new file to the systemd directory:

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sudo mv /tmp/orai.service /etc/systemd/system/orai.service

Reload and start the service:

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sudo systemctl daemon-reload
sudo systemctl restart systemd-journald
sudo systemctl start orai
sudo systemctl enable orai

Check the status of the service:

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sudo systemctl status orai

To see live logs of the service:

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journalctl -u orai -f

Check your node status

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oraid status
# OR
oraid status 2>&1 | jq .SyncInfo
# OR
curl -s localhost:26657/status | grep "catching_up"
# OR
oraid status 2>&1 | jq .SyncInfo.check_status

If the catching_up status is false, your node finishes syncing process. Finally, you can delete the snapshot file and backup your config folder. The snapshot file may be outdated; you can reach out to our community for it. Please join the Oraichain validators group on Telegram to discuss ideas and problems!