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email 2017-07-28 11:33:13 +02:00
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docs/weave.md
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@ -6,45 +6,68 @@ 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 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 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 * For use Weave encryption, it's necessary to specify password (if no password specify, no encrytion)
``` ```
# In file ./inventory/group_vars/k8s-cluster.yml # In file ./inventory/group_vars/k8s-cluster.yml
weave_password: EnterPasswordHere weave_password: EnterPasswordHere
``` ```
This password is use in environment variable in weave container. So it's impossible to see it somewhere
Weave is deploy by kubernetes with daemonSet Weave is deploy by kubernetes with daemonSet
* Check the status of Weave containers * Check the status of Weave containers
``` ```
# On k8s master
kubectl -n kube-system get pods | grep weave kubectl -n kube-system get pods | grep weave
``` ```
* Check status of weave (connection,encryption ...) * Check status of weave (connection,encryption ...)
``` ```
# On node
curl http://127.0.0.1:6784/status curl http://127.0.0.1:6784/status
``` ```
* Check parameters of weave
```
# On node
ps -aux | grep weaver
```
### Consensus mode (default mode) ### Consensus mode (default mode)
This mode is to fixed cluster This mode is to fixed cluster
### Seed mode ### Seed mode
This mode is to dynamic cluster This mode is to dynamic cluster
the seed mode allows multi clouds simultaneously and also hybrid on premise/cloud clusters the seed mode allows multi clouds simultaneously and also hybrid on premise/cloud clusters
* Change censensus mode to seed mode
* Change consensus mode to seed mode
``` ```
# In file ./inventory/group_vars/k8s-cluster.yml # In file ./inventory/group_vars/k8s-cluster.yml
weave_mode_seed: true weave_mode_seed: true
``` ```
This two variables are use to have automaticaly dynamic cluster (**/!\ do not manually change these values**) This two variables are use to have automaticaly dynamic cluster (**/!\ do not manually change these values**)
``` ```
# In file ./inventory/group_vars/k8s-cluster.yml # In file ./inventory/group_vars/k8s-cluster.yml
weave_seed: uninitialized weave_seed: uninitialized
weave_peers: uninitialized weave_peers: uninitialized
``` ```
The first variable, `weave_seed`, allows to save the first or firsts node of the weave network
The seconde variable, `weave_peers`, allows to save IP of all node of the weave network The first variable, `weave_seed`, allows to save the first or firsts nodes of the weave network
these two allows to connecte a new node to the weave network. this new node need to know the first node (seed) and list of IP to all node of network The seconde variable, `weave_peers`, allows to save IP of all nodes of the weave network
these two variables allows to connecte a new node to the weave network. this new node need to know the first node (seed) and list of IP to all node of network
For reset these variables set there values to `uninitialized` For reset these variables set there values to `uninitialized`