Kubernetes
Kubernetes manages containerised applications against a declared desired state. Its value also depends on configuration and operational responsibilities.
Kubernetes is an open-source platform for managing containerised applications. A team declares a desired state, such as how many instances of a service should run. Kubernetes works to establish and maintain that state on the available nodes in the cluster.
In a hypothetical portal, it can replace a failed application container. Keeping the service running after a machine failure, however, requires suitable other nodes, resources and configuration. A cluster on just one machine does not remove that machine's failure risk.
Kubernetes provides no automatic guarantee of uninterrupted business operations. A restarted application does not restore lost order data either. Updates, access rights, monitoring and data recovery need clear responsibilities. The tasks covered by a managed Kubernetes service must be checked separately.
Sources
Related terms
- ContainerA container runs application processes in an isolated environment. It can simplify deployment, while backups and operational responsibilities remain necessary.
- Container imageA container image is the package used to start containers. It includes software and dependencies, but does not automatically include current business data.
- Return-PathReturn-Path records the SMTP reverse path in a header. It explains the technical route for error reports, not a person’s identity.
- Envelope-FromEnvelope-From identifies the SMTP sender for transport and error feedback. It must be distinguished from the visible sender address.
- DMARC aggregate reportA DMARC aggregate report summarises a reporting mail system’s domain checks over a period. It helps examine sending sources and misconfigurations.
- DMARC policyA DMARC policy describes the requested handling of failed domain checks. It repairs neither sending sources nor their alignment.
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