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WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
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Automating mutable systems is often referred to as Configuration Management, and leverages tools such as Cfengine, Puppet, Chef, or Ansible. This tooling uses principles based on the concepts of target state, idempotence, and somewhat related to Mark Burgess’ Promise Theory. Configuration Management aims to make the system convergent, by running a tool on a regular basis, in order to resynchronize the system with its target state. Some of these tools (e.g. mgmt) also attempt to reach congruence by adopting a reactive approach, triggering corrective actions on events.
Where Configuration Management tools ensure a convergence of states for mutable systems such as VMs, packaging tools such as Helm and Helmfile can be used to periodically re-synchronize containers and other immutable objects with their target state.
The nodes are thus totally neutral now. As a result, their templates are greatly simplified, and they can now easily be managed in an immutable way. This new paradigm opened the way to new Operating Systems specialized for container orchestration, such as CoreOS or RancherOS, whose life cycles are meant to be managed with an immutable workflow.