The kubelet acts as a bridge between the Kubernetes master and the nodes, managing the pods and containers running on a machine. The kubelet translates each pod into its constituent containers and fetches individual container usage statistics from the container runtime through the container runtime interface. The kubelet fetches this information from the integrated cAdvisor for the legacy Docker integration. It then exposes the aggregated pod resource usage statistics through the metrics-server Resource Metrics API.
This article covers setting up of mssql-tools which includes the sqlcmd client utility. These steps are needed for container in which you wish to use the sqlcmd command or other Microsoft-originating utilities on Ubuntu to interact with an MSSQL Server.
Instead of installing postgreSQL server as local service for development setup, you can run postgreSQL and pgAdmin as Docker containers.