If specifying type of database, grafana downloads a plugin. Which plugin is this?

I have my grafana instance built through a CI setup we have and it works well. I cannot download any plugins on the fly once in production. The problem is, once I deploy in production if I specify a database connection (used for high availability) grafana attempts to download a plugin. I need to see if I can manually install this plugin ahead of time (and save it in the container), to avoid deployment issues. Here is what happens when I specify a database (the last line leaves a little hint…):

11/26/2018 2:21:41 PMgenerating ldap.toml
11/26/2018 2:21:42 PMFailed to send requesterrorGet https://grafana.com/api/plugins/repo: dial tcp 107.178.222.220:443: connect: connection refused
11/26/2018 2:21:42 PMError: ✗ Failed to send request. error: Get https://grafana.com/api/plugins/repo: dial tcp 107.178.222.220:443: connect: connection refused
11/26/2018 2:21:42 PM
11/26/2018 2:21:42 PMNAME:
11/26/2018 2:21:42 PM   Grafana cli plugins update-all - update all your installed plugins
11/26/2018 2:21:42 PM
11/26/2018 2:21:42 PMUSAGE:
11/26/2018 2:21:42 PM   Grafana cli plugins update-all [arguments...]
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Starting Grafana" logger=server version=5.3.3 commit=a8aa166 compiled=2018-11-06T08:49:03-0700
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Config loaded from" logger=settings file=/usr/share/grafana/conf/defaults.ini
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Config loaded from" logger=settings file=/etc/grafana/grafana.ini
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Config overridden from command line" logger=settings arg="default.paths.data=/var/lib/grafana"
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Config overridden from command line" logger=settings arg="default.paths.logs=/var/log/grafana"
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Config overridden from command line" logger=settings arg="default.paths.plugins=/grafana-plugins"
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_PATHS_DATA=/var/lib/grafana"
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_PATHS_LOGS=/var/log/grafana"
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_DATABASE_TYPE=mysql"
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_DATABASE_HOST=mysql.mySQL:3306"
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_DATABASE_NAME=grafana"
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_DATABASE_USER=grafana"
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_DATABASE_PASSWORD=*********"
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_SECURITY_ADMIN_PASSWORD=*********"
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_AUTH_LDAP_ENABLED=true"
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Path Home" logger=settings path=/usr/share/grafana
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Path Data" logger=settings path=/var/lib/grafana
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Path Logs" logger=settings path=/var/log/grafana
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Path Plugins" logger=settings path=/grafana-plugins
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Path Provisioning" logger=settings path=/usr/share/grafana/conf/provisioning
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="App mode production" logger=settings
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Ldap enabled, reading config file" logger=ldap file=/etc/grafana/ldap.toml
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Initializing SqlStore" logger=server
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Connecting to DB" logger=sqlstore dbtype=mysql
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=info msg="Starting DB migration" logger=migrator
11/26/2018 2:21:43 PMt=2018-11-26T14:21:43-0700 lvl=eror msg="Server shutdown" logger=server reason="Service init failed: Migration failed err: this authentication plugin is not supported"