Add a layotto lab showing users how to do traffic management with istio;

[seeflood]

What would you like to be added:
Currently our lab is simple. We can add more labs.

For example, we can add a layotto lab showing users how to do traffic management using istio .

It's a subtask of #471

Reference:
lab: https://killercoda.com/mosn-tutorial/course/layotto
source code of the lab: https://github.com/mosn/mosn-tutorial
We can copy-paste and modify the existing mosn tutorial: https://github.com/mosn/mosn-tutorial/tree/master/istio/mosn-with-istio

Why is this needed:

[leemos-xx]

Plz assign this to me.

[seeflood]

@leemos-xx Ok. Thanks!
I wrote an introduction to the online lab, see https://mosn.io/layotto/#/zh/start/lab
MOSN has some good tutorials at https://github.com/mosn/mosn-tutorial/tree/master/istio , which currently can not run on killercoda because of some incompatibility issues between katacoda and killercoda.
You can take a look at the mosn tutorials and I believe there are many materials that you can reuse

[seeflood]

@leemos-xx Hi, are u still working on it? Do you need help?
Recently MOSN add some labs on killercoda. We can reuse those labs, but with layotto image. See https://killercoda.com/mosn-tutorial/course/istio

[leemos-xx]

sry, I've been too busy lately, it may last until the end of August, if this task is more urgent, you may need to assign it to someone else first.

[seeflood]

@leemos-xx That's OK, I can assign it to myself :)

[Xunzhuo]

/good-first-issue cancel
/help-wanted cancel

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