Hands-On Software Engineering with Golang

Assigning a partition range to each pod

With the help of the Range type from the previous section, we now have the means to query the UUID range that's assigned to every single partition. For our particular use case, the number of partitions is equal to the number of pods that we launch. However, one crucial bit of information that we are lacking is the partition number that's assigned to each individual launched pod! Consequently, we now have two problems that we need to solve:

• What is the partition number of an individual pod?
• What is the total number of pods?

If we deploy our application as a StatefulSet with N replicas, every pod in the set will be assigned a hostname that follows the pattern SET_NAME-INDEX, where INDEX is a number ...