docker openldap server

instead of polluting devs machine, let's rely on a docker container
to spin up the service

relies on osixia/openldap:1.3.0. Customizes a few things:
- adds the seed on bootstrap
- does not enforce client certificate
- sets a hostname to avoid domain verification issues during handshake

The cert domain is also added to /etc/hosts

Author: vroldanbet

.travis.yml

@@ -9,14 +9,19 @@ rvm:
   - jruby-head
   - rbx-2
 
+services:
+  - docker
+
 env:
   - INTEGRATION=openldap
 
 before_install:
   - gem update bundler
+  - echo "127.0.0.1 ldap.example.org" >> /etc/hosts
 
 install:
-  - if [ "$INTEGRATION" = "openldap" ]; then sudo script/install-openldap; fi
+  - docker run --hostname ldap.example.org --env LDAP_TLS_VERIFY_CLIENT=try -p 389:389 -p 636:636 -v $(pwd)/test/fixtures/seed.ldif:/container/service/slapd/assets/config/bootstrap/ldif/50-bootstrap.ldif --name openldap osixia/openldap:1.3.0 --copy-service --loglevel debug
+  - docker cp openldap:/container/run/service/:ssl-tools/assets/default-ca/default-ca.pem /tmp/openldap-ca.pem
   - bundle install
 
 script: bundle exec rake ci