harika suram:
1. If i create a site, page or web content in control panel it is only there in local system. How can i make them available in all other environment, so that other developers can also view.
You can use export/import, but it has some limitations. The Liferay versions have to be exactly the same, so such a lar file is always just a temporary solution. It can also be a bit tricky with Global categories, templates, Assets in other sites ...
But for simple environments exporting the site and importing it should work.
What we usually do is to "clone" the Liferay servers. So, we have a development server and when a new developer starts working on it, he copies the Liferay folder and the database to his local machine and works on the clone. Whenever there are major changes, we clone it again.
Nowadays we have dockerized most of our stuff, so the cloning process has become rather simple.
2. How to check in site, page or web content i have created from control panel.
I assume that you mean in git (or a similar repository). Well, you can't. There is at least no OOB solution. You can export the lar files, unpack them and check in the xml contents (it's not fantastic, but could be enough for archiving purposes). You can also use the API to fetch contents.
It depends on your usecase.
e.g. we had a "hot phase" a while ago, where colleagues where doing a lot of cleanup and reorganization of sites. So, told them: Don't worry, I will create a database snapshot every hour. (I uses rsync on the document library, without syncing deletes to store the files) If you break something, call me and I will restore the db on the test system.
3. Need to know more about .lar files from you.
Lar Files are zip files. The problem is that the format is undocumented, internal and the content changes with every Liferay version. They can be used to transport sites/content from one system to the other, but they are not really useful for longtime storage or something like that.
