solana/multinode-demo/start_nodes.sh

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#!/bin/bash
ip_addr_file=$1
remote_user=$2
ssh_keys=$3
usage() {
echo -e "\\tUsage: $0 <IP Address array> <username> [path to ssh keys]\\n"
echo -e "\\t <IP Address array>: A bash script that exports an array of IP addresses, ip_addr_array. Elements of the array are public IP address of remote nodes."
echo -e "\\t <username>: The username for logging into remote nodes."
echo -e "\\t [path to ssh keys]: The public/private key pair that remote nodes can use to perform rsync and ssh among themselves. Must contain pub, priv and authorized_keys.\\n"
}
# Sample IP Address array file contents
# ip_addr_array=(192.168.1.1 192.168.1.5 192.168.2.2)
if [[ -z "$ip_addr_file" ]]; then
usage
exit 1
fi
if [[ -z "$remote_user" ]]; then
usage
exit 1
fi
# Build and install locally
PATH="$HOME"/.cargo/bin:"$PATH"
cargo install --force
ip_addr_array=()
# Get IP address array
# shellcheck source=/dev/null
source "$ip_addr_file"
# shellcheck disable=SC2089,SC2016
ssh_command_prefix='export PATH="$HOME/.cargo/bin:$PATH"; cd solana; USE_INSTALL=1 ./multinode-demo/'
count=0
leader=
for ip_addr in "${ip_addr_array[@]}"; do
echo "$ip_addr"
# Deploy build and scripts to remote node
rsync -r -av ~/.cargo/bin "$remote_user"@"$ip_addr":~/.cargo
rsync -r -av ./multinode-demo "$remote_user"@"$ip_addr":~/solana/
# If provided, deploy SSH keys
if [[ -z $ssh_keys ]]; then
echo "skip copying the ssh keys"
else
rsync -r -av "$ssh_keys"/* "$remote_user"@"$ip_addr":~/.ssh/
fi
# Stop current nodes
ssh "$remote_user"@"$ip_addr" 'pkill -9 solana-fullnode'
ssh "$remote_user"@"$ip_addr" 'pkill -9 solana-client-demo'
# Run setup
ssh "$remote_user"@"$ip_addr" "$ssh_command_prefix"'setup.sh -p "$ip_addr"'
if (( !count )); then
# Start the leader on the first node
echo "Starting leader node $ip_addr"
ssh -n -f "$remote_user"@"$ip_addr" "$ssh_command_prefix"'leader.sh > leader.log 2>&1'
leader=${ip_addr_array[0]}
else
# Start validator on all other nodes
echo "Starting validator node $ip_addr"
ssh -n -f "$remote_user"@"$ip_addr" "$ssh_command_prefix""validator.sh $remote_user@$leader:~/solana $leader > validator.log 2>&1"
fi
(( count++ ))
if (( count == ${#ip_addr_array[@]} )); then
# Launch client demo on the last node
echo "Starting client demo on $ip_addr"
ssh -n -f "$remote_user"@"$ip_addr" "$ssh_command_prefix""client.sh $remote_user@$leader:~/solana $count > client.log 2>&1"
fi
done