Microservice and Containerization Patterns > Boundary Definition Patterns > Multi-Container Isolation Control
Multi-Container Isolation Control (Erl, Naserpour)
How can the isolation level required by different microservices in containers be met?
A workload placement control mechanism is implemented that controls and audits where each of the containers or microservices can be hosted, enforces pre-defined affinity and anti-affinity rules and triggers an alarm if the situation is violated.
Affinity rules are configured that enforce a control mechanism to always keep Containers A and B co-hosted on the same host.
Even if the environment is rebalanced to distribute the workloads, Containers A and B are not moved and remain on the same host.
This pattern is applied by using and then enforcing pre-defined affinity and anti-affinity deployment rules, as explained and illustrated in the complete pattern description.