Create ROADMAP.md

ROADMAP.md

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+# Roadmap
+
+This document defines a high level roadmap for the etcd cluster controller development.
+
+The dates below should not be considered authoritative, but rather indicative of the projected timeline of the project.
+
+
+### 2017 Q1
+
+#### Features
+
+- Backup and recovery
+  - Recover an etcd cluster from a PV backup
+  - Backup an etcd cluster to S3
+  - Recover an etcd cluster from a S3 backup
+
+- Operationality
+  - Pause/Resume the control for an etcd cluster
+
+- Metrics and logging
+  - More structured logging
+      - Add prefix for different clusters
+      - Use infof, waringf, errorf consistently
+  - Expose controller metrics
+      - How many clusters it manages
+      - How many actions it does
+   - Expose the running status of the etcd cluster
+      - cluster size, version
+   - Expose errors 
+     -  bad version, bad cluster size, dead cluster
+
+- Security
+  - Server side TLS support
+
+
+#### Stability/Reliability
+
+- Verify user inputs
+  - desired version
+  - cluster size (do not stupidly increase cluster size to an unreasonable number)
+
+- More soak testing
+- 60%+ unit tests coverage