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Updating the node

Staying up to date with the new binary versions
Avalanche network is constantly updating with the new versions also us Hero network is keeping up with these updates. So when a new update comes we're updating and making announcement for our network node holders.
We've created a subnet-upgrade script for node maintainers, it's called hero-testnet-updated.
With this script you're able to update Hero subnet plugin if you have already installed avalanchego version.
If you do not have the avalanchego installed in your node, please first follow the official instructions in Avalanche's page.
#!/bin/bash
# Pulls latest pre-built node binary from GitHub and installs it as a systemd service.
# Intended for non-technical validators, assumes running on compatible Ubuntu.
#helper function that prints usage
usage() {
echo "Usage: $0 [--help] [--version <tag>] [--vm-id <vm-id>]"
echo "Options:"
echo " --help Shows this message"
echo " --version <tag> Installs <tag> subnet-evm version, default is the latest"
echo " --vm-id <vm-id> VM ID of the chain on the Subnet, defaults to Hero Testnet: nyfSdZmrxTXbJrxdUoqLegVGQzWF6RVL4jYn7Yr6NsMzpdrFA"
echo ""
exit 0
}
# Argument parsing convenience functions.
usage_error() {
echo >&2 "$(basename $0): $1"
exit 2
}
assert_argument() { test "$1" != "$EOL" || usage_error "$2 requires an argument"; }
echo "Hero Testnet install..."
# process command line arguments
if [ "$#" != 0 ]; then
EOL=$(echo '\01\03\03\07')
set -- "[email protected]" "$EOL"
while [ "$1" != "$EOL" ]; do
opt="$1"
shift
case "$opt" in
--vm-id)
assert_argument "$1" "$opt"
vm-id="$1"
shift
;;
--version)
assert_argument "$1" "$opt"
version="$1"
shift
;;
- | '' | [!-]*) set -- "[email protected]" "$opt" ;; # positional argument, rotate to the end
--*=*) set -- "${opt%%=*}" "${opt#*=}" "[email protected]" ;; # convert '--name=arg' to '--name' 'arg'
--) while [ "$1" != "$EOL" ]; do
set -- "[email protected]" "$1"
shift
done ;; # process remaining arguments as positional
-*) usage_error "unknown option: '$opt'" ;; # catch misspelled options
*) usage_error "this should NEVER happen ($opt)" ;; # sanity test for previous patterns
esac
done
shift # $EOL
fi
#running as root gives the wrong homedir, check and exit if run with sudo.
vm_id=${vm_id:-nyfSdZmrxTXbJrxdUoqLegVGQzWF6RVL4jYn7Yr6NsMzpdrFA}
version=${version:-latest}
if ((EUID == 0)); then
echo "The script is not designed to run as root user. Please run it without sudo prefix."
exit
fi
check_reqs() {
if ! command -v curl &>/dev/null; then
echo "curl could not be found, will install..."
sudo apt-get install curl -y
fi
if ! command -v wget &>/dev/null; then
echo "wget could not be found, will install..."
sudo apt-get install wget -y
fi
if ! command -v dig &>/dev/null; then
echo "dig could not be found, will install..."
sudo apt-get install dnsutils -y
fi
}
echo "Preparing environment..."
check_reqs
foundIP="$(dig +short myip.opendns.com @resolver1.opendns.com)"
foundArch="$(uname -m)" #get system architecture
foundOS="$(uname)" #get OS
if [ "$foundOS" != "Linux" ]; then
#sorry, don't know you.
echo "Unsupported operating system: $foundOS!"
echo "Exiting."
exit
fi
if [ "$foundArch" = "aarch64" ]; then
getArch="arm64" #we're running on arm arch (probably RasPi)
echo "Found arm64 architecture..."
elif [ "$foundArch" = "x86_64" ]; then
getArch="amd64" #we're running on intel/amd
echo "Found amd64 architecture..."
else
#sorry, don't know you.
echo "Unsupported architecture: $foundArch!"
echo "Exiting."
exit
fi
if test -f "/etc/systemd/system/avalanchego.service"; then
foundAvalancheGo=true
echo "Found AvalancheGo systemd service already installed, switching to upgrade mode."
echo "Stopping service..."
sudo systemctl stop avalanchego
else
foundAvalancheGo=false
echo "Couldn't found AvalancheGo systemd service, please run avalanchego-installer.sh before this script."
echo "Exiting."
exit
fi
# download and copy node files
mkdir -p /tmp/avalanche-node-subnet-install #make a directory to work in
rm -rf /tmp/avalanche-node-subnet-install/* #clean up in case previous install didn't
cd /tmp/avalanche-node-subnet-install
echo "Looking for $getArch version $version..."
if [ "$version" = "latest" ]; then
fileName="$(curl -s https://api.github.com/repos/ava-labs/subnet-evm/releases/latest | grep "linux_$getArch.*tar\(.gz\)*\"" | cut -d : -f 2,3 | tr -d \" | cut -d , -f 2)"
else
fileName="https://github.com/ava-labs/subnet-evm/releases/download/v$version/subnet-evm_"$version"_linux_$getArch.tar.gz"
fi
echo $fileName
if [[ $(wget -S --spider $fileName 2>&1 | grep 'HTTP/1.1 200 OK') ]]; then
echo "Subnet-evm version found."
else
echo "Unable to find Subnet-evm version $version. Exiting."
if [ "$foundAvalancheGo" = "true" ]; then
echo "Restarting service..."
sudo systemctl start avalanchego
fi
exit
fi
echo "Attempting to download: $fileName"
wget -nv --show-progress $fileName
echo "Unpacking node files..."
tar xvf subnet-evm_*.tar.gz
rm subnet-evm_*.tar.gz
cp subnet-evm ~/.avalanchego/plugins/$vm_id
echo "Node files unpacked into $HOME/.avalanchego/plugins/$vm_id"
echo
if [ "$foundAvalancheGo" = "true" ]; then
echo "Node upgraded, starting service..."
sudo systemctl start avalanchego
echo "New subnet-evm version: $version"
echo "Done!"
exit
fi