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Explore OpenLDAP

Goals

  • Create a CA cert which could be used to sign other certs
  • Create ldap.crt and ldap.key pairs and get signed by the CA cert
  • Create OpenLDAP + phpldapadmin by using docker-compose
    • Use the generated ldap certs file by updating the volume mounts in docker-compose file
  • Create a sample user account danielg in LDAP
  • Bring up a BookStack app and configure it to use LDAP
  • Using danielg to log in BookStack should succeeds

Lab

Create certificates

# Generate CA certs
brew-openssl genrsa -out ca.key 2048
brew-openssl req -x509 -new -nodes -key ca.key -sha256 -days 1825 -subj "/CN=company.issuer" -out ca.crt

# Generate ldap certs
brew-openssl genrsa -out ldap.key 2048
brew-openssl req -new -key ldap.key -out ldap.csr
# When create the cert, I have used "dc=company,dc=cc" (company.cc as the domain name, Company Inc. as the org name)
# Above org info is needed when setting up LDAP

# Sign ldap cert with CA cert
brew-openssl x509 -req -in ldap.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out ldap.crt -days 1825

Run docker-compose to bring up the LDAP service

docker-compose up -d

docker compose file is under link.

Once the service is up, you should be able to access the LDAP UI at http://ip:8080

Create user account via UI

  • Create Organization Unit named developers
  • Create Group named developers
  • Create a Generic: User Account named danielg

Run Bookstack app

cd ./bookstack
docker-compose up -d

docker compose file is under link. The .env file is the one has all LDAP configurations

Once Bookstack app is running, you should be able to login by using the user account you have created from OpenLDAP.

More to be explored

  • How to do the cert rotation on expiration ?
  • How to backup/restore OpenLDAP ?