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easyOVS

Provide smarter and powerful operation on OpenvSwitch bridges in OpenStack.

version 0.4

What is easyOVS

easyOVS provides a more convenient and fluent way to operate your
OpenvSwitch bridges in OpenStack platform,
such as list their ports, dump their flows and add/del some flows in a smart
style with color!

If using in OpenStack environment (Currently tested from the Havana to the Juno
release), easyOVS will associate the ports with the vm MAC/IP and VLAN Tag information, and the iptables rules for vm.

Installation and Usage

Install on host

Download the latest version and install.

git clone https://github.com/yeasy/easyOVS.git && sudo bash ./easyOVS/util/install.sh

After the installation, start easyovs with

sudo easyovs

easyOVS will show an interactive CLI, which supports command suggestions and formatted colorful output.

Run with Docker (recommended)

No OpenStack Support

docker run -it \
 --net='host' \
 --privileged \
 -v /var/run/openvswitch/:/var/run/openvswitch/:ro \
  yeasy/easyovs:latest

Enable Openstack support

Replace the following openstack credentials with your own.

docker run -it \
 --net='host' \
 --privileged \
 -v /var/run/openvswitch/:/var/run/openvswitch/:ro \
 -e OS_USERNAME=admin
 -e OS_PASSWORD=admin
 -e OS_TENANT_NAME=admin
 -e OS_AUTH_URL=http://127.0.0.1:5000/v2
  yeasy/easyovs:latest

Upgrade or Delete

If you wanna upgrade easyOVS from a previous version, just run

sudo bash ./easyOVS/util/install.sh -u

If you wanna remove the package from the system

sudo bash ./easyOVS/util/install.sh -d

Enable OpenStack Feature

To integrate the port information collected from OpenStack,
please set the authentication information in your environment: e.g.,

export OS_USERNAME=demo
export OS_TENANT_NAME=demo
export OS_PASSWORD=admin
export OS_AUTH_URL=http://127.0.0.1:5000/v2.0/

Otherwise, set the information into the etc/easyovs.conf file.

[OS]
auth_url = http://127.0.0.1:5000/v2.0
username = demo
password = admin
tenant_name = demo

Documentation

CLI Commands

help

Show the available commands and some usage examples.

list

List the available bridges. The output would look like

 EasyOVS> list
s1
 Port:        s1-eth2 s1 s1-eth1
 Interface:    s1-eth2 s1 s1-eth1
 Controller:ptcp:6634 tcp:127.0.0.1:6633
 Fail_Mode:    secure
s2
 Port:        s2 s2-eth3 s2-eth2 s2-eth1
 Interface:    s2 s2-eth3 s2-eth2 s2-eth1
 Controller:tcp:127.0.0.1:6633 ptcp:6635
 Fail_Mode:    secure
s3
 Port:        s3-eth1 s3-eth3 s3-eth2 s3
 Interface:    s3-eth1 s3-eth3 s3-eth2 s3
 Controller:ptcp:6636 tcp:127.0.0.1:6633
 Fail_Mode:    secure

show

EasyOVS> show [bridge|default]

Show the ports information of a given bridge. The output would look like

 EasyOVS> show br-int
br-int
Intf                Port        Vlan    Type        vmIP            vmMAC
int-br-eth0         15
qvo260209fa-72      11          1                   192.168.0.4     fa:16:3e:0f:17:04       
qvo583c7038-d3      2           1                   192.168.0.2     fa:16:3e:9c:dc:3a       
qvo8bf9cba2-3f      9           1                   192.168.0.5     fa:16:3e:a2:2f:0e
qvod4de9fe0-6d      8           2                   10.0.0.2        fa:16:3e:38:2b:2e       
br-int              LOCAL               internal

addbr

EasyOVS> addbr br-test

Create a new bridge. The output would look like

EasyOVS> addbr br1,br2
bridge br1 was created
bridge br2 was created

delbr

EasyOVS> delbr br-test

Delete a bridge. The output would look like

EasyOVS> delbr br1
bridge br1 was deleted

dump

EasyOVS> dump [bridge|default]

Dump flows in a bridge. The output would look like

EasyOVS> dump s1
ID TAB PKT       PRI   MATCH                                                       ACT
0  0   0         2400  dl_dst=ff:ff:ff:ff:ff:ff                                    CONTROLLER:65535
1  0   0         2400  arp                                                         CONTROLLER:65535
2  0   0         2400  dl_type=0x88cc                                              CONTROLLER:65535
3  0   0         2400  ip,nw_proto=2                                               CONTROLLER:65535
4  0   0         801   ip                                                          CONTROLLER:65535
5  0   2         800

addflow

EasyOVS> addflow [bridge|default] [match] actions=[action]

Add a flow into the bridge, e.g.,

EasyOVS> addflow br-int priority=3 ip actions=OUTPUT:1

delflow

EasyOVS> delflow [bridge|default] id1 id2...

Delete flows with given ids (see the first column of the dump output).

set

EasyOVS> set bridge

Set the default bridge. Then you will go into a bridge mode, and can ignore the bridge parameter when using the
command.

EasyOVS> set br-int
Set the default bridge to br-int.
EasyOVS: br-int>

exit

EasyOVS> exit

Exit from the bridge mode, or quit EasyOVS if already at the top level.

get

EasyOVS> get

Get the current default bridge.

EasyOVS: br-int> get
Current default bridge is br-int

ipt

EasyOVS> ipt vm vm_ip...

Show the related iptables rules of the given vms.

EasyOVS> ipt vm 192.168.0.2
## IP = 192.168.0.2, port = qvo583c7038-d ##
    PKTS    SOURCE          DESTINATION     PROT  OTHER               
#IN:
     672    all             all             all   state RELATED,ESTABLISHED
       0    all             all             tcp   tcp dpt:22          
       0    all             all             icmp                      
       0    192.168.0.4     all             all                       
       3    192.168.0.5     all             all                       
       8    10.0.0.2        all             all                       
   85784    192.168.0.3     all             udp   udp spt:67 dpt:68   
#OUT:
    196K    all             all             udp   udp spt:68 dpt:67   
   86155    all             all             all   state RELATED,ESTABLISHED
    1241    all             all             all                       
#SRC_FILTER:
   59163    192.168.0.2     all             all   MAC FA:16:3E:9C:DC:3A

EasyOVS> ipt show [table] [chain]...

Show the related iptables rules of the given table or chain.

EasyOVS> ipt show filter FORWARD
table=filter
chain=FORWARD
1 0 0 ACCEPT all -- * virbr0 0.0.0.0/0 192.168.122.0/24 ctstate RELATED,ESTABLISHED
2 0 0 ACCEPT all -- virbr0 * 192.168.122.0/24 0.0.0.0/0
3 0 0 ACCEPT all -- virbr0 virbr0 0.0.0.0/0 0.0.0.0/0
4 0 0 REJECT all -- * virbr0 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable
5 0 0 REJECT all -- virbr0 * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable
6 691K 1117M DOCKER all -- * docker0 0.0.0.0/0 0.0.0.0/0
7 691K 1117M ACCEPT all -- * docker0 0.0.0.0/0 0.0.0.0/0 ctstate RELATED,ESTABLISHED
8 463K 26M ACCEPT all -- docker0 !docker0 0.0.0.0/0 0.0.0.0/0
9 0 0 ACCEPT all -- docker0 docker0 0.0.0.0/0 0.0.0.0/0

query

EasyOVS> query vm_ip1, port_id...

Show the related port information by giving the IP address or part of the
id string.

EasyOVS> query 10.0.0.2,c4493802
## port_id = f47c62b0-dbd2-4faa-9cdd-8abc886ce08f
status: ACTIVE
name:
allowed_address_pairs: []
admin_state_up: True
network_id: ea3928dc-b1fd-4a1a-940e-82b8c55214e6
tenant_id: 3a55e7b5f5504649a2dfde7147383d02
extra_dhcp_opts: []
binding:vnic_type: normal
device_owner: compute:az_compute
mac_address: fa:16:3e:52:7a:f2
fixed_ips: [{u'subnet_id': u'94bf94c0-6568-4520-aee3-d12b5e472128', u'ip_address': u'10.0.0.2'}]
id: f47c62b0-dbd2-4faa-9cdd-8abc886ce08f
security_groups: [u'7c2b801b-4590-4a1f-9837-1cceb7f6d1d0']
device_id: c3522974-8a08-481c-87b5-fe3822f5c89c
## port_id = c4493802-4344-42bd-87a6-1b783f88609a
status: ACTIVE
name:
allowed_address_pairs: []
admin_state_up: True
network_id: ea3928dc-b1fd-4a1a-940e-82b8c55214e6
tenant_id: 3a55e7b5f5504649a2dfde7147383d02
extra_dhcp_opts: []
binding:vnic_type: normal
device_owner: compute:az_compute
mac_address: fa:16:3e:94:84:90
fixed_ips: [{u'subnet_id': u'94bf94c0-6568-4520-aee3-d12b5e472128', u'ip_address': u'10.0.0.4'}]
id: c4493802-4344-42bd-87a6-1b783f88609a
security_groups: [u'7c2b801b-4590-4a1f-9837-1cceb7f6d1d0']
device_id: 9365c842-9228-44a6-88ad-33d7389cda5f

sh

EasyOVS> sh cmd

Run the system cmd locally, e.g., using ls -l to show local directory's content.

EasyOVS> sh ls -l
total 48
drwxr-xr-x. 2 root root 4096 Apr  1 14:34 bin
drwxr-xr-x. 5 root root 4096 Apr  1 14:56 build
drwxr-xr-x. 2 root root 4096 Apr  1 14:56 dist
drwxr-xr-x. 2 root root 4096 Apr  1 14:09 doc
drwxr-xr-x. 4 root root 4096 Apr  1 14:56 easyovs
-rw-r--r--. 1 root root  660 Apr  1 14:56 easyovs.1
drwxr-xr-x. 2 root root 4096 Apr  1 14:56 easyovs.egg-info
-rw-r--r--. 1 root root 2214 Apr  1 14:53 INSTALL
-rw-r--r--. 1 root root 1194 Apr  1 14:53 Makefile
-rw-r--r--. 1 root root 3836 Apr  1 14:53 README.md
-rw-r--r--. 1 root root 1177 Apr  1 14:53 setup.py
drwxr-xr-x. 2 root root 4096 Apr  1 14:09 util

quit

Input ^d or quit to exit EasyOVS.

##Options

-h

Show the help message on supported options, such as

$ easyovs -h
Usage: easyovs [options]
(type easyovs -h for details)

The easyovs utility creates operation CLI from the command line. It can run
given commands, invoke the EasyOVS CLI, and run tests.

Options:
  -h, --help            show this help message and exit
  -c, --clean           clean and exit
  -m CMD, --cmd=CMD     Run customized commands for tests.
  -v VERBOSITY, --verbosity=VERBOSITY
                        info|warning|critical|error|debug|output
  --version

-c

Clean the env.

-m

Run the given command in easyovs directly, show the output, and exit.

easyovs -m "show br-int"

E.g. easyovs -m 'br-int dump'.

-v

Set verbosity level.

--version

Show the version information.

Features

  • Support OpenvSwitch version 1.4.6 ~ 2.0.0.
  • Support most popular Linux distributions, e.g., Ubuntu,Debian, CentOS and Fedora.
  • Format the output to make it clear and easy to compare.
  • Show the OpenStack information with the bridge port (In OpenStack environment).
  • Delete a flow with its id.
  • Show formatted iptables rules with given vm IPs.
  • Smart command completion, try tab everywhere.
  • Support colorful output.
  • Support run local system commands.
  • Support run individual command with -m 'cmd'

#Credits
Thanks to the OpenvSwitch Team, Mininet Team and OpenStack Team, who gives helpful implementation example and useful tools.

Docker Pull Command
Owner
yeasy
Source Repository