idug db2 tech conference rotterdam, netherlands …•as a company we started with a purely green...
TRANSCRIPT
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Session code:
The zGUI (r)evolution -What is ZOWE going to do for me?
Roy Boxwell
Software Engineering GmbHG09
Tuesday 22nd October 2019, 16:40 – 17:40 Platform: Db2 for z/OS
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Agenda
• GUIs in the past
• Zowe ecosystem overview
• Zowe differentiation to prior GUIs
• Zowe components
• Zowe examples
• Hands-on usage based on a cloning example
• Summary of experience
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
New, ZOWE day, agenda
• What do I want to show you?
• Problems we had…
• Success!
• Q & A
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
New, ZOWE day, agenda
• What do I want to show you?
• Problems we had…
• Success!
• Q & A
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
What do I want to show you? (1:2)
• As a company we started with a purely green screen ISPF front-end
• This has evolved over the years to incorporate DataStudio plug-insand RDz support, we also use ODBC in Excel for trending analysis
• If we can evolve - where can we go now? zOSMF, Browser, ZOWE ???
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
What do I want to show you? (2:2)
• ZOWE is a game changer for *all* of the employees and users in anycompany
• It does not matter if you are old and grey (like me!) or young anddynamic
• A unified GUI experience is the icing on the cake for the learningcurve and integration and co-operation across IT boundaries!
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
New, ZOWE day, agenda
• What do I want to show you?
• Problems we had…
• Success!
• Q & A
![Page 8: IDUG Db2 Tech Conference Rotterdam, Netherlands …•As a company we started with a purely green screen ISPF front-end •This has evolved over the years to incorporate DataStudio](https://reader033.vdocuments.net/reader033/viewer/2022041914/5e690b2ccdac5265e80f7c98/html5/thumbnails/8.jpg)
IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Zowe components
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Zowe components – which caused problems
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Problems (1:4)
• ZOWE started as 0.9.5 and nodejs on the PC – That‘s all you need!• Mainframe was dead and response was very slow
• Fix the WLM and get the Daemons working properly
• API Catalog looks good but where is Db2?
• USS and MVS Explorers pretty slow and a ton of UNIX permissionsfailed
• Editor has „interesting“ code page issues…
• Documentation is a dead dog… Written by coders for coders whoalready know what they are coding… Worst bit of ZOWE!
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Problems (2:4)
• Iframe example should allow direct connection to Db2 without a middleware server…• It doesn‘t!• Angular and React are very strange for newbies• Angular is a typed version of Javascript with dodgy docu and bad versions• NodeJS? npm? You must register to find out what it offers before getting it??
• APIs with zOSMF a problem due to http vs https• Here the IBM zOSMF documentation saved the day as the services are there,
just with slightly different addresses.
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Problems (3:4)
• Using BIND SERVICE to get a RESTFUL call should work like a charm…„Cross-Origin Request Blocked: The Same Origin Policy disallows reading the
remote resource at http://s0w1.fritz.box:5121/services. (Reason: CORS header
'Access-Control-Allow-Origin' missing).“
• What is this? Seriously bad news… Any POST communication from within a browser coming from site#1 going to site#2 gets prepended with an OPTIONS call to the server in question. Even if the *only* change is the port number…
• Db2 chokes on this:{
"StatusCode": 501,
"StatusDescription": "DB2 does not support this HTTP request. Error
Location:DSNLJHPP:130"
}
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Problems (4:4)
• Looks like we need ibm_db but this needs c++ which was not working• Ibm_db installation fails with ENOTDIR errors from npm
• ZLUX needed perl, unzip, vim, bash and git all just for the tutorial app!
• PHP in an attempt to bypass the CORS error – didn‘t work either
• Create API is ok – Calling it is another matter! How to call one of the ZOWE desktop APIs appears impossible
• What about a RESTful service URL in a HTTP request saved as a js file? • Works in OMVS – fails in main.js of the Iframe sample…• Browser does not „know“ about the NodeJS environment (mainframe or local!)
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Problems
But apart from that, what have the romans done for us?
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Zowe components
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Zowe walk through…
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When you start Zowe:
Not so sure about the simple bit!
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Zowe walk through…
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Zowe walk through…
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Delivered Apps
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Zowe walk through…
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Zowe walk through…
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After all that scrolling we end up at the test app that we created
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Zowe walk through…
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Zowe walk through…
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So here I wanted to use ENTER to step through some lines. New Line for the young ones…
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Zowe walk through…
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Didn‘t work of course…
Off to the internet to find this handy look-up table
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Zowe walk through…
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Zowe walk through…
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Didn‘t work of course…
So then I found out by trial-and-error that they meant CNTL and ENTER…
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Zowe walk through…
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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Now we can look at the test app that we created
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
New, ZOWE day, agenda
• What do I want to show you?
• Problems we had…
• Success!
• Q & A
![Page 46: IDUG Db2 Tech Conference Rotterdam, Netherlands …•As a company we started with a purely green screen ISPF front-end •This has evolved over the years to incorporate DataStudio](https://reader033.vdocuments.net/reader033/viewer/2022041914/5e690b2ccdac5265e80f7c98/html5/thumbnails/46.jpg)
IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
New, ZOWE day, agenda
• What do I want to show you?
• Problems we had…
• Success!
• Q & A
![Page 47: IDUG Db2 Tech Conference Rotterdam, Netherlands …•As a company we started with a purely green screen ISPF front-end •This has evolved over the years to incorporate DataStudio](https://reader033.vdocuments.net/reader033/viewer/2022041914/5e690b2ccdac5265e80f7c98/html5/thumbnails/47.jpg)
IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Q & A
Any questions about what we have just seen and done?
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IDUG Db2 Tech ConferenceRotterdam, Netherlands | October 20-24, 2019
Session code:
Please fill out your session evaluationbefore leaving!
Roy BoxwellSoftware Engineering [email protected]
G09
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