actually start glauth server

[butonic]

To test install the oc10 graphapi app in an oc instance, then replace the url with your instance in this line

bin/ocis-glauth --log-level debug server --backend-server https://cloud.example.com

query the givenname of all your users like this

ldapsearch -x -H ldap://localhost:9125 -b dc=owncloud,dc=com -D "cn=<loginname>,dc=owncloud,dc=com" -W givenName

replace <loginname> with you login, eg admin ... ldapsearch will ask for your password and you should see the users displayname / givenname. try fetching groups with

 ldapsearch -x -H ldap://localhost:9125 -b dc=owncloud,dc=com -D "cn=<loginname>,dc=owncloud,dc=com" objectclass=posixaccount -W

🚀

This PR

• adds config flags for glauth ldap ports and the backend
• add config options for the http port of glauth
• add config options for the ldaps cert and key
• by default uses https://demo.owncloud.com as the data store
  • but that does not have the graphapi app installed ...
• when killing the server it neds to be killed hard and exits with

2020-02-25T14:55:41+01:00 INF Shutting down server service=glauth transport=http
2020-02-25T14:55:41+01:00 INF Shutting down server service=glauth transport=debug
^Cpanic: send on closed channel

goroutine 19 [running]:
os/signal.process(0x12a6a20, 0xc000264308)
        /usr/lib/go/src/os/signal/signal.go:227 +0x189
os/signal.loop()
        /usr/lib/go/src/os/signal/signal_unix.go:23 +0x3e
created by os/signal.init.0
        /usr/lib/go/src/os/signal/signal_unix.go:29 +0x41

may need some more tweaking upstream to cleanly kill the server by using a context ...

• when not using the graphapi I only see the same user over and over in the list ...

ldapsearch -x -H ldap://localhost:9125 -b ou=users,dc=owncloud,dc=com -D "cn=jfd,ou=users,dc=owncloud,dc=com" -W 
Enter LDAP Password: 
# extended LDIF
#
# LDAPv3
# base <ou=users,dc=owncloud,dc=com> with scope subtree
# filter: (objectclass=*)
# requesting: ALL
#

# test2, users, owncloud.com
dn: cn=test2,ou=users,dc=owncloud,dc=com
cn: test2
uid: test2
objectClass: posixAccount
description: test2 from ownCloud

# test2, users, owncloud.com
dn: cn=test2,ou=users,dc=owncloud,dc=com
cn: test2
uid: test2
objectClass: posixAccount
description: test2 from ownCloud

.
.
.

# test2, users, owncloud.com
dn: cn=test2,ou=users,dc=owncloud,dc=com
cn: test2
uid: test2
objectClass: posixAccount
description: test2 from ownCloud

# search result
search: 2
result: 0 Success

• when using the graphapi I don't seem to be able to list users

 ldapsearch -x -H ldap://localhost:9125 -b ou=users,dc=owncloud,dc=com -D "cn=jfd,ou=users,dc=owncloud,dc=com" -W  
Enter LDAP Password: 
# extended LDIF
#
# LDAPv3
# base <ou=users,dc=owncloud,dc=com> with scope subtree
# filter: (objectclass=*)
# requesting: ALL
#

# search result
search: 2
result: 1 Operations error

# numResponses: 1

[update-docs]

Thanks for opening this pull request! The maintainers of this repository would appreciate it if you would create a changelog item based on your changes.