When operating in HTTP mode (API or Web), access to orchestrator may be restricted via either:

• basic authentication

  Add the following to orchestrator's configuration file:

   "AuthenticationMethod": "basic",
   "HTTPAuthUser":         "dba_team",
   "HTTPAuthPassword":     "time_for_dinner"
  

  With basic authentication there's just one single credential, and no roles.

  Orchestrator's configuration file contains credentials to your MySQL servers as well as basic authentication credentials as specified above. Keep it safe (e.g. chmod 600).

• basic authentication, extended

  Add the following to orchestrator's configuration file:

   "AuthenticationMethod": "multi",
   "HTTPAuthUser":         "dba_team",
   "HTTPAuthPassword":     "time_for_dinner"
  

  The multi authentication works like basic, but also accepts the user readonly with any password. The readonly user is allowed to view all content but unable to perform write operations through the API (such as stopping a replica, repointing replicas, discovering new instances etc.)

• Headers authentication

  Authenticates via headers forwarded by reverse proxy (e.g. Apache2 relaying requests to orchestrator). Requires:

   "AuthenticationMethod": "proxy",
   "AuthUserHeader": "X-Forwarded-User",
  

  You will need to configure your reverse proxy to send the name of authenticated user via HTTP header, and use same header name as configured by AuthUserHeader.

  For example, an Apache2 setup may look like the following:

   RequestHeader unset X-Forwarded-User
   RewriteEngine On
   RewriteCond %{LA-U:REMOTE_USER} (.+)
   RewriteRule .* - [E=RU:%1,NS]
   RequestHeader set X-Forwarded-User %{RU}e
  

  The proxy authentication allows for roles. Some users are Power users and the rest are just normal users. Power users are allowed to make changes to the topologies, whereas normal users are in read-only mode. To specify the list of known DBAs, use:

   "PowerAuthUsers": [
       "wallace", "gromit", "shaun"
       ],
  

Or, regardless, you may turn the entire orchestrator process to be read only via:

    "ReadOnly": "true",

You may combine ReadOnly with any authentication method you like.