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 31 mike  1.1 
 32 a.arora 1.5 
 33 karl    1.3 The Pegasus WEB Demonstration
 34 a.arora 1.5 =============================
 35 mike    1.1 
 36 karl    1.4 
 37 a.arora 1.5 TABLE  OF  CONTENTS
 38             ===================
 39             
 40             1. Introduction
 41             2. How to setup Pegasus
 42             3. How to setup Apache webserver
 43             4. How to setup the Pegasus webdemo 
 44             5. How to start the Pegasus webdemo
 45             
 46             
 47             1. Introduction
 48             == ============
 49              This readme talks about the steps to setup Pegasus, Apache webserver and the
 50              Pegasus webdemo on Windows and Linux platforms.
 51              The pegasus/cgi directory contains the HTML CGI interface to Pegasus. It is 
 52              used as part of a demonstration of the Pegasus environment through a WEB 
 53              browser.
 54             
 55              It consists of two** subdirectories:
 56              1. htdocs : This directory contains the HTML forms that form the basis of the
 57                          demonstration. The starting point for the demo is index.html
 58 a.arora 1.5  
 59              2. cgi-bin: This directory contains the CGI executables.  This consists of the
 60                          Pegasus CGIClient.exe program and the supporting shared libraries.  
 61                          We have placed them in this directory despite the fact that they 
 62                          also exist in the PEGASUS_HOME/bin directory to limit exposure to 
 63                          other executables through CGI and to avoid a permanent path the                   
 64                          $PEGASUS_HOME$/bin directory when Apache is executing.
 65               **There is a third directory "icons" which has the logo for "Open Groups".
 66             
 67              This demonstration uses the HTML pages in htdocs as forms to generate CGI
 68              requests through the WEB Server.  These requests are serviced by the Pegasus
 69              CGIClient executable (copied to "cgi-bin" directory by the Makefile in this 
 70              directory). CGIClient, in turn converts the CGI forms input to Pegasus CIM  
 71              Operations C++ calls. The Pegasus client library converts the calls to XML 
 72              conforming with the DMTF CIM Operations over HTTP specifications and passes 
 73              them to the Pegasus CIM Server.
 74             
 75              The CIM server responses in XML are interpreted by the CGI client (part of the  
 76              SDK code) which then generates appropriate HTML responses and passes them back 
 77              to the WEB server.
 78             
 79 a.arora 1.5  NOTE: By default, the CGIClient fixes the address and port of the CIM server as
 80              ----   URL  : localhost
 81                     Port : 5988
 82                    This can be changed by using "Define Host" option provided in the demo.
 83             
 84              If you have already got Pegasus installed and configured, please jump to
 85              "3. How to setup Apache webserver". 
 86             
 87             
 88             
 89             2. How to setup Pegasus
 90             == ===================
 91                A. On Windows platform
 92                -- -------------------
 93                   Environment setup:
 94                   ==================
 95                   1. MS Visual Studio VC++ (tested on .NET  2003 (Version 7.1))
 96                   2. A CVS client (say WinCVS 1.2 @ http://www.wincvs.org/download.html) 
 97                   3. GNU-make 3.79 for Windows (@ http://ftp.gnu.org/pub/gnu/make/)
 98                      It should be compiled using NMake (NMake comes with VC++). For details
 99                      on how to work with NMake, please refer to Readme file(s) which comes
100 a.arora 1.5          with the GNU-make source code.
101                      NOTE: The latest GNU-make for Windows can also be found at 
102                      ----  "http://www.openpegasus.org/pb/index.tpl".
103                       
104                     
105                   Downloading Pegasus source tree:
106                   ================================
107                   There are two options for downloading Pegasus source code:
108                   1. Source from CVS:
109                      Download Pegasus sourcetree from www.pegasus.org (say in <Drive>:\<pegtop>).
110                      If using WinCVS to download, please use following settings:
111                       a>  Go to "Admin" menu option and select "Preferences"
112                       b>  In "General" tab, set CVSROOT  to ":pserver:anon@cvs.opengroup.org:
113                           /cvs/MSB"
114                       c>  Set Authentication to '"passwd" file on CVS server' (this option is
115                           there in "General" tab under Admin->Preferences).
116                       d>  In "WinCVS" tab (again, under Admin->Preferences) set  Home to 
117                           "<Drive>:\<pegtop>"
118                       e>  Go to "Admin" menu option and select "login"
119                       f>  Give "anon" as the password when prompted
120                       g>  Type "cvs checkout pegasus"  in the command line menu option under 
121 a.arora 1.5               "Admin".
122                   2. Source from www.openpegasus.org
123                      There is a snapshot of the latest release of Pegasus (eg. Pegasus 
124                      2.3.1) on the pegasus home page http://www.openpegasus.org. The release  
125                      is present under the Recent Documents (eg. "Release 2.3.1 - zip format 
126                      (Windows)"). You may download the source from this link.
127                   
128                   
129             
130                   Building Pegasus:
131                   =================
132                   1. Export following environment variables with suitable values.
133                      For an example:
134                       set  PEGASUS_ROOT=<Drive>:/<pegtop>/pegasus
135                       set  PEGASUS_HOME=<Drive>:/<pegtop>/pegasus
136                       set  PEGASUS_PLATFORM=WIN32_IX86_MSVC
137                      NOTE: a> You might have to use "\" in the path instead of "/". 
138                      ----  b> These variables can be exported from the command window 
139                               manually each time you need to compile/run Pegasus, or you can 
140                               add them as "System Variables" in "My Computer" -(right 
141                               click)->"Properties"-->"Advanced"--> "Environment variables".
142 a.arora 1.5       2. Make sure that you execute "vsvars32.bat" ("vcvars32.bat" in Visual
143                      Studio 6.0) file (comes with Visual Studio) every time you open a new
144                      command prompt Window before issuing any compilation (NMake or make).
145                      Or else, you may also set PATH environment variable to point to Visual
146                      Studio paths.
147                   3. Compile MU.exe  (Unix-commands emulator for Windows) by issuing a make 
148                      in the "<Drive>:\<pegtop>\pegasus\src\utils\mu" folder. Make sure that
149                      MU.exe exists in "<Drive>:\<pegtop>\pegasus\bin" folder. If not, copy
150                      it here.
151                   4. Add "<Drive>:\<pegtop>\pegasus\bin"  directory to the PATH environment 
152                      variable.
153                   
154                   5. Issue following commands in pegasus home directory 
155                      (<Drive>:\<pegtop>\pegasus)
156                       a>  make : (This comand may take 10 to 30 minutes depending on your 
157                                   machine's configuration. If you don't see any error message
158                                   on the screen, the compilation would have gone fine. You
159                                   may still confirm this by checking for "cimserver.exe" file
160                                   in "<Drive>:\<pegtop>\bin" path. In case of any error, check
161                                   the error message on the screen and try to correct it. Some
162                                   of the common problems faced are: 
163 a.arora 1.5                       i > "cl.exe : File Not Found." (This implies that you haven't
164                                              executed step# 2).
165                                   ii> "<Drive>:<pegtop><some-path>  Not Found" (Try changing the
166                                              slash in the path exported by PEGASUS_HOME. If using
167                                              "/", replace it with "\" and vice-versa.
168                                   iii> For some other error, try to solve it, or else you may ask
169                                        your query on "pegasus-l@opengroup.org" mailing list
170                                        giving a detailed description of the problem (preferably 
171                                        with some snapshots).
172                                
173                       b>  make repository : (This command may take 5 to 10 minutes, again
174                                   depending on your machine's configuration.
175                       c>  make tests (optional) : (This command may take roughly 5 minutes).
176             
177                   Starting the CIM Server:
178                   ========================
179                   1. From Command prompt, type cimserver. This would start it (inorder to 
180                      stop issue "cimserver -s" command). You can issue "cimprovider -l" 
181                      command to verify that the cimserver is running fine. This command 
182                      would tell you if the server is not running.
183                   2. There are various command line clients present in pegasus which 
184 a.arora 1.5          provide/configure some of the basic features of the cimserver. Some of 
185                      these are:
186                      cimconfig  - To list/change/setup configuration parameters for 
187                                   cimserver.
188                      cimprovider- To list/load/unload/delete/ various providers.
189                      cimmof     - This command operates through the client interface and  
190                                   acts as a remote compiler for MOF files against an active 
191                                   CIM Repository.                    
192                      cimmofl    - This command is also used to compile the MOF files, but it 
193                                   operates locally and directly against the repository.
194                      cimauth    - For configuring/ listing authorization support.
195                      cimuser    - For listing/adding/deleting/modifying users to access the 
196                                   pegasus repository.
197                   3. There is a command line utility CLI for running individual cim 
198                      operations.
199                      "CLI -h" to get help for the usage of this client.
200             
201             
202             
203                B. On Linux Platform
204                -- -----------------      
205 a.arora 1.5       Environment setup:
206                   ==================
207                   RedHat Linux 8.0 on IA32 with gcc-3.x
208             
209                   Downloading Pegasus source tree:
210                   ================================
211                   There are 2 options for downloading pegasus sources on your local machine:
212                   1. Source from CVS.
213                      Commands for fetching the Pegasus source code using CVS are:
214                       a> Export the CVSROOT environment variable:
215                          "export CVSROOT=:pserver:anon@cvs.opengroup.org:/cvs/MSB"
216                       b> Run "cvs login" command. When it prompts for the password give 
217                          "anon".
218                       c> Execute "cvs checkout pegasus".
219                      NOTE: Refer the note in "How To Setup the Pegasus WebDemo (on Linux)" 
220                      ----  for selecting the path where Pegasus code should be put.
221                      Once the source tree has been checked out it can be updated regularly
222                      (as required) by running "cvs update -d".
223                   2. Source from www.openpegasus.org
224                      There is a snapshot of the latest release of Pegasus (eg. Pegasus 
225                      2.3.1) on the pegasus home page http://www.openpegasus.org. The release 
226 a.arora 1.5          is present under the Recent Documents (eg. "Release 2.3.1 - compressed 
227                      tar format (Linux)"). You may download the source from this link.
228                             
229                   
230                   Setting up Pegasus
231                   ==================
232                   1. Open .bash_profile in your home directory  ~<username>/.bash_profile
233             
234                   2. Write the following statements into .bash_profile in order to setup 
235                      Pegasus variables (replace <pegtop> with the path where you want to put 
236                      Pegasus source tree):
237                       PEGASUS_HOME=/<pegtop>/pegasus/
238                       PEGASUS_ROOT=/<pegtop>/pegasus/
239                       PEGASUS_PLATFORM=LINUX_IX86_GNU
240                       export PEGASUS_HOME PEGASUS_ROOT PEGASUS_PLATFORM
241                       export PATH=$PATH:/<pegtop>/pegasus/bin
242             
243                      NOTE: You may keep the PEGASUS_HOME and PEGASUS_ROOT as different 
244                      ----  paths. This would allow you to install the binaries, libraries 
245                            and the repository in a different path and not in the same path 
246                            as the Pegasus source code. If they are different, please make 
247 a.arora 1.5                sure that the paths exist.
248                   3. Logout and Re-login to your account and change directory to 
249                      pegasus/(the one we created in the step above).
250                      [The logout and login is to make sure that your .bash_profile is 
251                      executed so that the PEGASUS_XXXX variables are set to their respective 
252                      values. You may also execute .bash_profile manually 
253                      (". ~/.bash_profile") thus avoiding the logout/login process.]
254                   4. Check your system if gcc-3.x is installed. Run "g++ --version" to check 
255                      the version. If you are using Redhat linux then it would show something 
256                      like this: "g++ (GCC) 3.2 20020903 (Red Hat Linux 8.0 3.2-7) Copyright 
257                      (C) 2002 Free Software Foundation, Inc. This is free software; see the 
258                      source for copying conditions. There is NO warranty; not even for 
259                      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
260             
261                   Building Pegasus
262                   ================
263                   1. Change directory to the one in which pegasus sources are present and 
264                      execute "make" OR "make 2>&1 | tee make.log" 
265                      [The command "make 2>&1 | tee make.log" is just to keep a build log for 
266                      your reference, and is not mandatory. This log may be helpful in 
267                      detecting problems that might arise during build.
268 a.arora 1.5       2. Run "make repository" OR "make repository 2>&1 | tee make-
269                      repository.log". This will create a directory repository/ under the 
270                      PEGASUS_ROOT directory, which contains the classes and instances for 
271                      all namespaces present in the project. All the MOFs are compiled during 
272                      this "make repository", and the XMLs generated are put in the  
273                      "repository" directory.
274                   3. To execute all the basic tests present in Pegasus sources, execute  
275                      "make tests" and execute "make -f TestMakefile tests" to run all the 
276                      tests specified in the TestMakefile.
277             
278             
279                   Starting the CIM Server:
280                   ========================
281                   1. To start the pegasus server just run: "cimserver" 
282                      You may use "cimprovider -l" command to verify if the cimserver is
283                      running or not.
284                      To stop: "cimserver -s".
285                      [Remember: To stop the cimserver you need to have root access. If you
286                      started the cimserver from a non-user account you will have to 
287                      explicitly kill it by issuing "killall cimserver"]
288                   2. There are various clients present in pegasus which provide/configure 
289 a.arora 1.5          some of the basic features of the cimserver. Some of these commands 
290                      are:
291                      cimconfig  - To list/change/setup configuration parameters for 
292                                   cimserver.
293                      cimprovider- To list/load/unload/delete/ various providers.
294                      cimmof     - This command operates through the client interface and 
295                                   acts as a remote compiler for MOF files against an active 
296                                   CIM Repository.                    
297                      cimmofl    - This command is also used to compile the MOF files, but it 
298                                   operates.
299                                   locally and directly against the repository.
300                      cimauth    - For configuring/ listing authorization support.
301                      cimuser    - For listing/adding/deleting/modifying users to access the 
302                                   pegasus repository.
303                   3. There is a command line utility CLI for running individual cim 
304                      operations.  Execute "CLI ?" to get a list of operations supported by 
305                      pegasus currently.
306                      "CLI -h" to get help for the usage of this client.
307             
308             
309             3. How to setup Apache webserver
310 a.arora 1.5 == =============================
311                A. On Windows platform
312                -- -------------------
313                   Download and install Apache webserver (Httpd) (binary version) for Windows 
314                   from www.apache.org (http://httpd.apache.org/download.cgi).
315              
316                B. On Linux platform
317                -- -----------------
318                   Download the Apache webserver (Httpd) code for Linux from www.apache.org
319                   (http://httpd.apache.org/download.cgi).
320                   Follow the instructions in the README file to build and install Httpd.
321              
322             
323             
324             4. How to setup the Pegasus webdemo 
325             == ================================
326                A. On Windows platform
327                -- -------------------
328                   Modify the httpd.conf (this file can be found in "<apache-install-dir>\conf"
329                   folder) Apache configuration file with the following Entries (do not forget
330                   to replace <pegtop> with the path where you have put the Pegasus source code):
331 a.arora 1.5 #PEGASUS
332             ScriptAlias /pegasus/cgi-bin/CGIClient "<Drive>:/<pegtop>/pegasus/cgi/cgi-bin/CGIClient.exe"
333             ScriptAlias /pegasus/cgi-bin "<Drive>:/<pegtop>/pegasus/cgi/cgi-bin"
334             Alias /pegasus/icons "<Drive>:/<pegtop>/pegasus/cgi/icons"
335             Alias /pegasus "<Drive>:/<pegtop>/pegasus/cgi/htdocs"
336             
337             <Directory "<Drive>:/<pegtop>/pegasus/cgi/cgi-bin">
338             AllowOverride None
339             Options ExecCGI
340             allow from all
341             </Directory>
342             
343             
344                B. On Linux platform
345                -- -----------------
346                   Modify the httpd.conf (it can be found in "<Apache-install-path>/conf"
347                   directory. The default value of <Apache-install-path> is "/usr/local/apache")
348                   Apache configuration file with the following Entries (do not forget to replace
349                   <pegtop> with the path where you have put the Pegasus source code) :
350             #PEGASUS
351             ScriptAlias /pegasus/cgi-bin/CGIClient "/<pegtop>/pegasus/cgi/cgi-bin/CGIClient"
352 a.arora 1.5 ScriptAlias /pegasus/cgi-bin "/<pegtop>/pegasus/cgi/cgi-bin"
353             Alias /pegasus/icons "/<pegtop>/pegasus/cgi/icons"
354             Alias /pegasus "/<pegtop>/pegasus/cgi/htdocs"
355             
356             <Directory "/<pegtop>/pegasus/cgi/cgi-bin">
357             AllowOverride None
358             Options ExecCGI
359             allow from all
360             </Directory>      
361                   
362                   NOTE: Please make sure that each directory in the path "/<pegtop>/pegasus
363                   ----  /cgi/cgi-bin/" has execute permission for "nobody" user (Apache 
364                         httpd uses this userid to access files on the server, when a client 
365                         request comes in). This can be done by giving "x" permission in 
366                         "others" for all the directories. 
367                         Giving execute permission to all the directories may be a security
368                         concern for some users when they have the Pegasus source tree in 
369                         their home directories. In this case, there are two options:
370                          1> Put the Pegasus source tree in some other path (eg. "/pegasus"), 
371                             and not in home directory.
372                          2> Copy the entire cgi directory tree from "/<pegtop>/pegasus/cgi" 
373 a.arora 1.5                 to put it in some path where you can give execute permission to 
374                             "others".
375             
376             
377             5. How to start the Pegasus webdemo
378             == ================================
379                  A> Give a "make" in <pegtop>/pegasus/cgi to get the necessary executables
380                     copied (CGIClient program, etc) to cgi-bin.
381                  B> Open a web-browser from a client machine and put the following URL in it:
382                     "http://<host-addr>/pegasus"
383                     where <host-addr> can be the "localhost" (if the client machine is same
384                     as the server), or a valid IP address of the server (machine hosting 
385                     the Pegasus webdemo and the Apache server).
386                  C> You would see the index.html (under pegasus/cgi/htdocs path) loaded in the
387                     browser. Follow the instructions mentioned and have fun !
388                  
389 karl    1.3 

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