collectd
A daemon that collects system performance statistics periodically, and provides tons of plugins to store and analyze these values
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Consul
Consul makes it simple for services to register themselves and to discover other services via a DNS or HTTP interface. Register external services such as SaaS providers as well
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Fabric8
fabric8 is an end to end development platform spanning ideation to production for the creation of cloud native applications and microservices
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Monit
An open source utility for managing and monitoring processes, programs, files, directories and filesystems
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Packer
Packer is a tool for creating identical machine images for multiple platforms (like VirtualBox, VMWare, EC2, DigitalOcean, etc) from a single configuration file.
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Pallet
A tool to provision and maintain servers across various cloud platforms as well as virtual machine platforms, without any dependencies. Provides cloud and operating system independence.
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Pulumi
Create, deploy, and manage Cloud Native infrastructure, as real code. A single toolset for infrastructure, managed services, containers, and serverless environments on any cloud infrastructure. You get all the benefits of real programming languages; IDEs, abstractions and reuse thanks to functions, classes, and packages, debugging, testability, and more
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Terraform
Terraform provides a common configuration to launch infrastructure from different providers (AWS, Digital Ocean, Heroku, etc.). It provides dependency resolution to make sure that your infrastructure is created in the right order
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testssl.sh
A command-line tool which checks a server's service on any port for the support of TLS/SSL ciphers, protocols as well as some cryptographic flaws. It's designed to provide clear output for your "is this good or bad" decision.
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Zabbix
An open source, enterprise-class monitoring framework
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