Oracle Cloud Infrastructure OS Management service provides simple and very robust tool for general operation system maintenance activities for the compute instances running on Oracle Cloud OCI.
Using this OS management service, you can monitor the packages installed on compute instances, you can do the linux packages maintenance works i.e. adding/installing new packages, removing the existing packages or updating the existing one when that becomes available to its public yum repository.
OS management service is not enabled by default. It is an agent based service that you have to enable by installing osms-agent agent on the underline compute node.
All compute instances which has enabled osms-agent installed is called managed instance. You can manage the managed instances individually or you can group the managed instances and do the bulk maintenance but all the managed instances in the group must have same OS and version.
For detailed learning and understanding of the OS Management service - click here.
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