Using LDAPS with docker image from dockerhub

If you don't want to build your own image to use LDAPS with own CA TLS certificate you may use your host's system ca-certificates.crt mounted in container. Make sure that your CA TLS certificate is already in ca-certificates.crt (usage of utilities like debian's update-ca-certificates is googleable). Just add the following in volumes section of docker-compose.yaml:

services:
  mlp:
#...
    volumes:
#...
      - type: bind
        source: /etc/ssl/certs/ca-certificates.crt
        target: /etc/ssl/certs/ca-certificates.crt
#...

Now you can edit your LDAP_CONNECT in .env file to use ldaps like ldaps://dc.example.com:636 Then do docker-compose down && docker-compose up -d. And check ldap auth.