adding-openldap.md

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# Adding OpenLDAP for COmanage Registry

Follow these steps to build and add OpenLDAP slapd
as a managed service to an existing COmanage Registry service stack.

* Complete the instructions for deploying COmanage Registry with
a relational database. Choose one of
  * [COmanage Registry using the Shibboleth SP and PostgreSQL database](shibboleth-sp-postgresql.md),
  * [COmanage Registry using the Shibboleth SP and MariaDB database](shibboleth-sp-mariadb.md),
  * [COmanage Registry using mod\_auth\_openidc and MariaDB database](mod-auth-openidc-mariadb.md),
  * [COmanage Registry using the Internet2 TIER image](comanage-registry-internet2-tier.md).

* Define the shell variable `COMANAGE_REGISTRY_SLAPD_BASE_IMAGE_VERSION` to be the
version of the base image you are about to build:

```
export COMANAGE_REGISTRY_SLAPD_BASE_IMAGE_VERSION=1
```

* Build the base image:

```
pushd comanage-registry-slapd-base
TAG="${COMANAGE_REGISTRY_SLAPD_BASE_IMAGE_VERSION}"
docker build \
  -t comanage-registry-slapd-base:${TAG} .
popd
```

* Define the shell variable `COMANAGE_REGISTRY_SLAPD_IMAGE_VERSION`
to be the version of the image you are about to build:

```
export COMANAGE_REGISTRY_SLAPD_IMAGE_VERSION=1
```

* Build the slapd image:

```
pushd comanage-registry-slapd
TAG="${COMANAGE_REGISTRY_SLAPD_IMAGE_VERSION}"
docker build \
    --build-arg COMANAGE_REGISTRY_SLAPD_BASE_IMAGE_VERSION=${COMANAGE_REGISTRY_SLAPD_BASE_IMAGE_VERSION} \
    -t comanage-registry-slapd:$TAG . 
popd
```

* Use the [slappasswd OpenLDAP password utility](https://linux.die.net/man/8/slappasswd)
to create a hashed password value.

* Create a secret to store the hashed password value you just created
(be sure to use your own value and not the example below):

```
echo "{SSHA}emcy1JA+mxbHH0PMPcnasE9apBStAMks" | docker secret create olc_root_pw
```

* Create directories on the Docker engine host(s) for state files:

```
sudo mkdir -p /srv/docker/var/lib/ldap
sudo mkdir -p /srv/docker/etc/slapd.d
```

* Define shell variables for the directory suffix and root DN,
  for example:

```
export OLC_SUFFIX=dc=my,dc=org
export OLC_ROOT_DN=cn=admin,dc=my,dc=org
```

* Edit the Docker Swarm services stack description (compose) file you previously
created and add the following service description after the existing services:

```
comanage-registry-ldap:
    image: comanage-registry-slapd:${COMANAGE_REGISTRY_SLAPD_IMAGE_VERSION}
    command: ["slapd", "-d", "256", "-h", "ldapi:/// ldap:///", "-u", "openldap", "-g", "openldap"]
    volumes:
        - /srv/docker/var/lib/ldap:/var/lib/ldap
        - /srv/docker/etc/slapd.d:/etc/ldap/slapd.d
    environment:
        - OLC_ROOT_PW_FILE=/run/secrets/olc_root_pw
        - OLC_SUFFIX=${OLC_SUFFIX}
        - OLC_ROOT_DN=${OLD_ROOT_DN}
    secrets:
        - olc_root_pw
    networks:
        - default
    deploy:
        replicas: 1
```

* Be sure to also edit the services stack description file and add
the `olc_root_pw` secret to the list of secrets.

* Deploy the COmanage Registry service stack:

```
docker stack deploy --compose-file comanage-registry-stack.yml comanage-registry
```

You may monitor the progress of the slapd container using

```
docker service logs -f comanage-registry-ldap
```

The container does not bootstrap any structure in the directory, i.e. it
does not create any `ou=people` or `ou=groups` branches that are usually
used with COmanage Registry.  To have the container create the necessary
structure for your deployment see [Executing LDIF Files](slapd-ldif.md).

To use TLS for connections to slapd (either on port 636 using ldaps://
or via `START_TLS` on port 389) define the environment variables
`SLAPD_CERT_FILE`, `SLAPD_CHAIN_FILE`, and `SLAPD_PRIVKEY_FILE`
and then change the `command` above to be

```
command: ["slapd", "-d", "256", "-h", "ldapi:/// ldap:/// ldaps:///", "-u", "openldap", "-g", "openldap"]
```