## Architecture Standards

**Experimental!**

We'd like to capture our architectural decisions about the build tool as [Architectural Decision Records (ADRs)](https://adr.github.io/).
For now we just have this global repository of ADRs.
If we see fit, we can break these out to per-platform ones, or keep a hybrid approach to having global and platform-specific ADSs.

Our aim is to keep the process lightweight and approachable.

- includeIPCidr, excludeIPCidr
- includeInboudPorts, excludeInboundPorts
- includeOutboutPorts, excludeOutboundPorts
- excludeInterfaces
- kubevirtInterfaces
- ISTIO_META_DNS_CAPTURE env variable on the proxy - enables dns redirect
- INVALID_DROP env var on proxy - changes behavior from reset to drop in iptables
- auto excluded inbound ports: 15020, 15021, 15090

such as MinIO. MapReduce workloads typically interact with object stores in the same way they do with HDFS. These workloads rely on HDFS atomic rename functionality to complete writing data to the datastore. Object storage operations are atomic by nature and they do not require/implement rename API. The default S3A committer emulates renames through copy and delete APIs. This interaction pattern causes significant loss of performance because of the write amplification. _Netflix_, for example, developed...