pmm2-client-updater.sh

#!/bin/bash

# Get JSON data from pmm-admin command
json_data=$(pmm-admin status --json)

agent_version=$(echo "$json_data" | python3 -c "import sys, json; print(json.loads(sys.stdin.read())['pmm_agent_status']['agent_version'])")
server_version=$(echo "$json_data" | python3 -c "import sys, json; print(json.loads(sys.stdin.read())['pmm_agent_status']['server_version'])")


echo "PMM Server version:[$server_version]"
echo "PMM Client version:[$agent_version]"


# Compare versions and execute package update for pmm2-client
if [[ $(printf '%s\n' "$agent_version" "$server_version" | sort -V | head -n1) == "$agent_version" && "$agent_version" != "$server_version" ]]; then
    echo "PMM Client version is $agent_version. Starting the update process..."
    if command -v apt &> /dev/null; then
        sudo apt update
        sudo apt install -y pmm2-client
    elif command -v yum &> /dev/null; then
        sudo yum update -y pmm2-client
        sudo yum install -y pmm2-client
    else
        echo "Package update is not supported on this system."
        exit 1
    fi
fi