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README-idrange.md
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Rafael Guterres Jeffman authored
There is a new idrange management module placed in the plugins folder: plugins/modules/ipaidrange.py The idrange module allows to ensure presence and absence of idranges. Here is the documentation of the module: README-idrange.md New example playbooks have been added: playbooks/idrange/idrange-absent.yml playbooks/idrange/idrange-ad-posix-present.yml playbooks/idrange/idrange-ad-present.yml playbooks/idrange/idrange-present.yml New tests for the module can be found at: tests/idrange/test_idrange.yml tests/idrange/test_idrange_client_context.ymlRafael Guterres Jeffman authoredThere is a new idrange management module placed in the plugins folder: plugins/modules/ipaidrange.py The idrange module allows to ensure presence and absence of idranges. Here is the documentation of the module: README-idrange.md New example playbooks have been added: playbooks/idrange/idrange-absent.yml playbooks/idrange/idrange-ad-posix-present.yml playbooks/idrange/idrange-ad-present.yml playbooks/idrange/idrange-present.yml New tests for the module can be found at: tests/idrange/test_idrange.yml tests/idrange/test_idrange_client_context.yml
flannel.md NaN GiB
# Flannel
Flannel is a network fabric for containers, designed for Kubernetes
**Warning:** You may encounter this [bug](https://github.com/coreos/flannel/pull/1282) with `VXLAN` backend, while waiting on a newer Flannel version the current workaround (`ethtool --offload flannel.1 rx off tx off`) is showcase in kubespray [networking test](tests/testcases/040_check-network-adv.yml:31).
## Verifying flannel install
* Flannel configuration file should have been created there
```ShellSession
cat /run/flannel/subnet.env
FLANNEL_NETWORK=10.233.0.0/18
FLANNEL_SUBNET=10.233.16.1/24
FLANNEL_MTU=1450
FLANNEL_IPMASQ=false
```
* Check if the network interface has been created
```ShellSession
ip a show dev flannel.1
4: flannel.1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UNKNOWN group default
link/ether e2:f3:a7:0f:bf:cb brd ff:ff:ff:ff:ff:ff
inet 10.233.16.0/18 scope global flannel.1
valid_lft forever preferred_lft forever
inet6 fe80::e0f3:a7ff:fe0f:bfcb/64 scope link
valid_lft forever preferred_lft forever
```
* Try to run a container and check its ip address
```ShellSession
kubectl run test --image=busybox --command -- tail -f /dev/null
replicationcontroller "test" created
kubectl describe po test-34ozs | grep ^IP
IP: 10.233.16.2
```
```ShellSession
kubectl exec test-34ozs -- ip a show dev eth0
8: eth0@if9: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1450 qdisc noqueue
link/ether 02:42:0a:e9:2b:03 brd ff:ff:ff:ff:ff:ff
inet 10.233.16.2/24 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::42:aff:fee9:2b03/64 scope link tentative flags 08
valid_lft forever preferred_lft forever
```