Install Cosmovisor

Cosmovisor is a process manager for Cosmos SDK applications that simplifies the upgrade process. It monitors the blockchain's governance proposal system for pending upgrades, automatically downloads binaries, and can perform automatic restarts.

Build Cosmovisor

1. Clone the repository and navigate to the Cosmovisor directory:

   cd ${HOME}
   git clone https://github.com/cosmos/cosmos-sdk && cd cosmos-sdk/tools/cosmovisor/

   This step involves retrieving the latest version of Cosmovisor from the official Cosmos SDK repository.

2. Build the application:

   make

   The make command compiles the Cosmovisor source code, producing an executable binary.

3. Install the binary globally:

   sudo cp cosmovisor /usr/local/bin

   Copying the Cosmovisor binary to /usr/local/bin makes it accessible system-wide, allowing any user to run it.

Service File Template

A service helps in automating the node's operations using systemd, a system and service manager in Unix-like operating systems.

Service file location /etc/systemd/system/flora.service

[Unit]
Description=Flora Node
After=network-online.target

[Service]
User=flora
Group=flora
ExecStart=/usr/local/bin/cosmovisor run start
Restart=always
RestartSec=3
LimitNOFILE=4096
Environment="DAEMON_NAME=florad"
Environment="DAEMON_HOME=/home/flora/.flora"
Environment="DAEMON_ALLOW_DOWNLOAD_BINARIES=false"
Environment="DAEMON_RESTART_AFTER_UPGRADE=true"
Environment="DAEMON_LOG_BUFFER_SIZE=512"
Environment="UNSAFE_SKIP_BACKUP=true"

[Install]
WantedBy=multi-user.target

• Description and Dependency: Describes the service and specifies that it should start after the network is available.
• Service Settings: Defines user, group, startup command, restart conditions, and environmental variables that configure how Cosmovisor runs the node.
• Installation: Specifies the target type, ensuring the service is integrated into the system's multi-user environment.

Managing the Service

These commands control and monitor the node service:

• Reload systemd: Updates systemd to recognize changes to service files.

  systemctl daemon-reload

• Enable the service: Sets service autostart after system reboot.

  systemctl enable flora

• Start the service: Activates the node service.

  systemctl start flora

• Monitor logs: Tracks the running service's output in real time.

  journalctl -u flora -f