new doc for weave

docs/weave.md

@@ -0,0 +1,42 @@
+Weave
+=======
+
+Weave 2.0.1 is supported by kubespray
+Weave be use with [**consensus**](https://www.weave.works/docs/net/latest/ipam/#initialization) mode (default mode) and [**seed**](https://www.weave.works/docs/net/latest/ipam/#initialization) mode
+
+
+In kubespray, Weave encryption for all communication is supported
+* For use Weave encryption, it's necessary to specify password
+if no password specify, no encrytion
+```
+# In file ./inventory/group_vars/k8s-cluster.yml
+weave_password: EnterPasswordHere
+```
+
+Weave is deploy by kubernetes with daemonSet
+* Check the status of Weave containers
+```
+kubectl -n kube-system get pods | grep weave
+```
+* Check status of weave (connection,encryption ...)
+```
+curl http://127.0.0.1:6784/status
+```
+
+### Consensus mode (default mode)
+This mode is to fixed cluster
+
+### Seed mode
+This mode is to dynamic cluster
+* Change censensus mode to seed mode
+```
+# In file ./inventory/group_vars/k8s-cluster.yml
+weave_mode_seed: true
+```
+the seed mode allows multi clouds simultaneously and also hybrid on premise/cloud clusters
+
+```
+# In file ./inventory/group_vars/k8s-cluster.yml
+weave_seed: uninitialized
+weave_peers: uninitialized
+```