An diesem Artikel wird gearbeitet. Work in Progress to extend this article!
pip (alles notwendige ist hier beschrieben!)virtualenv (pip install virtualenv)pip will einiges kompilieren)git (um sich die Beispiele vom Ryu-Projekt zu kopieren)Ich empfehle die Installation in folgenden Schritten.
Macbook:Python Benny$ virtualenv ryu-3.11 New python executable in ryu-3.11/bin/python Installing setuptools, pip...done. Macbook:Python Benny$ source ryu-3.11/bin/activate (ryu-3.11)Macbook:Python Benny$
Es ist wichtig das Kommando wie unten beschrieben einzugeben! lxml kompiliert sonst (zumindest bei mir) nicht!
(ryu-3.11)Macbook:Python Benny$ STATIC_DEPS=true pip install lxml Downloading/unpacking lxml Downloading lxml-3.3.5.tar.gz (3.5MB): 3.5MB downloaded Running setup.py (path:/Users/Benny/Python/ryu-3.11/build/lxml/setup.py) egg_info for package lxml (... Jede Menge CLI-Kilometer ausgelassen ...) Successfully installed lxml Cleaning up...
(ryu-3.11)Macbook:Python Benny$ pip install ryu Downloading/unpacking ryu Downloading ryu-3.12.tar.gz (1.1MB): 1.1MB downloaded Running setup.py (path:/Users/Benny/Python/ryu-3.11/build/ryu/setup.py) egg_info for package ryu (... Jede Menge CLI-Kilometer ausgelassen ...) Successfully installed ryu eventlet msgpack-python netaddr oslo.config paramiko routes six webob greenlet argparse pycrypto ecdsa repoze.lru Cleaning up...
Hält man diese Reihenfolge nicht ein, dann schlägt a) die Installation von lxml fehl b) vergisst der Ryu Installer dann greenlet.
An dieser Stelle ist es sinnvoll sich die Beispiele von Ryu zu kopieren, siehe: Bei mir fehlen die Beispiele!
(ryu-3.11)Macbook:ryu-3.11 Benny$ bin/ryu-manager --verbose ../ryu-git/ryu/app/simple_switch_13.py
loading app ../ryu-git/ryu/app/simple_switch_13.py
loading app ryu.controller.ofp_handler
instantiating app ryu.controller.ofp_handler of OFPHandler
instantiating app ../ryu-git/ryu/app/simple_switch_13.py of SimpleSwitch13
BRICK SimpleSwitch13
CONSUMES EventOFPPacketIn
CONSUMES EventOFPSwitchFeatures
BRICK ofp_event
PROVIDES EventOFPPacketIn TO {'SimpleSwitch13': set(['main'])}
PROVIDES EventOFPSwitchFeatures TO {'SimpleSwitch13': set(['config'])}
CONSUMES EventOFPPortDescStatsReply
CONSUMES EventOFPEchoRequest
CONSUMES EventOFPSwitchFeatures
CONSUMES EventOFPErrorMsg
CONSUMES EventOFPHello
Ich hab Urlaub! Danach werde ich diese Anleitung sicherlich noch erweitern .. :)
-> show configuration snapshot openflow ! OPENFLOW: openflow logical-switch OFSwitch vlan 2 openflow logical-switch OFSwitch controller 192.168.10.100:6633 openflow logical-switch OFSwitch interfaces port 1/1-20
(ryu)Macbook:ryu Benny$ ryu-manager --verbose ../ryu-git/ryu/app/simple_switch_13.py
loading app ../ryu-git/ryu/app/simple_switch_13.py
loading app ryu.controller.ofp_handler
instantiating app ryu.controller.ofp_handler of OFPHandler
instantiating app ../ryu-git/ryu/app/simple_switch_13.py of SimpleSwitch13
BRICK SimpleSwitch13
CONSUMES EventOFPSwitchFeatures
CONSUMES EventOFPPacketIn
BRICK ofp_event
PROVIDES EventOFPSwitchFeatures TO {'SimpleSwitch13': set(['config'])}
PROVIDES EventOFPPacketIn TO {'SimpleSwitch13': set(['main'])}
CONSUMES EventOFPSwitchFeatures
CONSUMES EventOFPEchoRequest
CONSUMES EventOFPHello
CONSUMES EventOFPErrorMsg
CONSUMES EventOFPPortDescStatsReply
connected socket:<eventlet.greenio.GreenSocket object at 0x103763250> address:('192.168.10.2', 36544)
hello ev <ryu.controller.ofp_event.EventOFPHello object at 0x103763610>
move onto config mode
EVENT ofp_event->SimpleSwitch13 EventOFPSwitchFeatures
switch features ev version: 0x4 msg_type 0x6 xid 0x84975d27 OFPSwitchFeatures(auxiliary_id=0,capabilities=79,datapath_id=537554651826897,n_buffers=256,n_tables=3)
move onto main mode
An diesem Fehler ist mein erster Installationsversuch mit pip install ryu auch gescheitert.
Nach einiger Suche habe ich in den Untiefen von „stackoverflow“ den Tipp im Folgenden gefunden.
(ryu)Macbook:ryu Benny$ pip install ryu
Downloading/unpacking ryu
Downloading ryu-3.11.tar.gz (1.3MB): 1.3MB downloaded
Running setup.py (path:/Users/Benny/Python/ryu/build/ryu/setup.py) egg_info for package ryu
Installed /Users/Benny/Python/ryu/build/ryu/pbr-0.10.0-py2.7.egg
[pbr] Processing SOURCES.txt
warning: LocalManifestMaker: standard file '-c' not found
In file included from src/lxml/lxml.etree.c:346:
/Users/Benny/Python/ryu/build/lxml/src/lxml/includes/etree_defs.h:9:10: fatal error: 'libxml/xmlversion.h' file not found
#include "libxml/xmlversion.h"
Lösung:
(ryu)Macbook:ryu Benny$ STATIC_DEPS=true pip install lxml
pip install ryu problemlos durchlaufengreenlet fehlte
Nach der manuellen Korrektur mit lxml, scheint das pip install ryu Kommando greenlet irgendwie vergessen zu haben.
(ryu-3.11)Macbook:ryu-3.11 Benny$ bin/ryu-manager ../ryu-git/ryu/app/simple_switch_13.py
Traceback (most recent call last):
File "bin/ryu-manager", line 5, in <module>
from pkg_resources import load_entry_point
File "/Users/Benny/Python/ryu-3.11/lib/python2.7/site-packages/pkg_resources.py", line 2697, in <module>
working_set.require(__requires__)
File "/Users/Benny/Python/ryu-3.11/lib/python2.7/site-packages/pkg_resources.py", line 669, in require
needed = self.resolve(parse_requirements(requirements))
File "/Users/Benny/Python/ryu-3.11/lib/python2.7/site-packages/pkg_resources.py", line 572, in resolve
raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: greenlet>=0.3
Lösung:
(ryu-3.11)Macbook:ryu-3.11 Benny$ pip install greenlet
Die Beispiele werden von pip nicht mitinstalliert. Dies kann aber sehr leicht nachgeholt werden.
Lösung:
Macbook:Python Benny$ git clone https://github.com/osrg/ryu.git ryu-git Cloning into 'ryu-git'... remote: Counting objects: 14808, done. remote: Compressing objects: 100% (134/134), done. remote: Total 14808 (delta 80), reused 0 (delta 0) Receiving objects: 100% (14808/14808), 18.27 MiB | 676.00 KiB/s, done. Resolving deltas: 100% (10855/10855), done. Checking connectivity... done.