Update README.md

[kboenke]

Values defined through env-vars must be quoted in order to be correctly placed in .ini-files. Otherwise they will not be interpreted properly.

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[lippserd]

@cla-bot check

[lippserd]

Thanks for the contribution.

[lippserd]

Hi @kboenke,

What exactly do you want to fix with this PR, i.e. what is not interpreted correctly?

Best regards,
Eric

[adn77]

@lippserd this is actually a major pitfall for first-time users. It took me two weeks to figure out I need to put certain attributes in quotes (probably those containing special characters).

I ended up using a combination of single and double quotes, e.g.:

environment:
  icingaweb.resources.ad-ldap.bind_dn: '"idp@example.org"'

What still doesn't work is something like:

environment:
  icingaweb.modules.generictts.config.onboard.pattern: '/#([0-9]+)/'

I looked at the code of the go-ini library but didn't really get anywhere

[Al2Klimov]

The problem isn't that the users aren't told to quote properly, the problem is that the entrypoint doesn't quote properly:

• entrypoint/: let Icinga Web render its config files, not a Go lib #123