Env variables for LDAP configuration

[mtilson]

• Add docker Env variables to be used to configure LDAP from command line (via docker compose)
• References
  • Configure LDAP from command line
  • Guide » Administrator Guide » LDAP Authentication

[mtilson]

Added some automation in 5.0.2-1

• REDMINE_LDAP_OTF_USE_DISPLAY_NAME: Flag to use displayName for LDAP On-the-fly user creation as default for the first and last names. For 'Firstname attribute' the part of displayName before the first space character (`) is used if this flag set totrueand corresponding LDAP search for the specified in UI attributes return empty string. For 'Lastname attribute' the part ofdisplayNameafter the last space character ( ) is used if this flag set totrueand corresponding LDAP search for the specified in UI attributes return empty string. Defaults totrue`.
• REDMINE_LDAP_OTF_MAIL_ATTR: LDAP 'Email attribute' default attribute for LDAP On-the-fly user creation. Used in another LDAP search if the corresponding LDAP search for the specified in UI attribute return empty string. Defaults to userPrincipalName.
• REDMINE_LDAP_OTF_MAIL_DOMAIN: Used in LDAP On-the-fly user creation as e-mail domain suffix for the addreess returned by LDAP search for REDMINE_LDAP_OTF_MAIL_ATTR. If the returned by LDAP search e-mail address doesn't corresponds to a valid e-mail address and it has @ character, the @suffix part of the returned address is replaced by this variable. If the returned address doesn't have @ character then the @ character and this variable is added to the end of the returned address. Defaults to empty string.