From 59c1d03bf35baab75c543cb77f72d983d1f73a57 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20Luginb=C3=BChl?= <dinkel@pimprecords.com>
Date: Wed, 18 Feb 2015 22:12:48 +0100
Subject: [PATCH] Configuration now actually survives a restart

---
 Dockerfile    |  2 +-
 README.md     |  9 +++++----
 entrypoint.sh | 17 +++++++++++++----
 3 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 93d7196..1ecdf30 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,7 @@ RUN apt-get update && \
 
 EXPOSE 389
 
-VOLUME ["/var/lib/ldap", "/etc/ldap"]
+VOLUME ["/var/lib/ldap"]
 
 COPY entrypoint.sh /entrypoint.sh
 
diff --git a/README.md b/README.md
index 47a7a3d..d7c2b13 100644
--- a/README.md
+++ b/README.md
@@ -67,7 +67,8 @@ envirnonment variables are not evaluated anymore.
 Data persistence
 ----------------
 
-The image exposes the directory, where the data is written
-(`VOLUME ["/var/lib/ldap"`). Please make sure that
-these directories are saved (in a data-only container or alike) in order to make
-sure that everything is restored after a new restart of the application.
+The image exposes one directory (`VOLUME ["/var/lib/ldap"]`). It both holds the
+database and the configuration (which is symlinked in a pretty hacky way - see
+the `entrypoint.sh` file if interested). Please make sure that this directory is
+saved (in a data-only container or alike) in order to make sure that everything
+is restored after a new restart of the container.
diff --git a/entrypoint.sh b/entrypoint.sh
index dcee514..788b933 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,9 +1,15 @@
 #!/bin/bash
 set -e
 
-chown -R openldap:openldap /var/lib/ldap/
+chown openldap:openldap /var/lib/ldap/
+
+if [[ -d /var/lib/ldap/config ]]; then
+
+    rm -rf /etc/ldap
+    ln -s /var/lib/ldap/config /etc/ldap
+
+else
 
-if [[ ! -f /etc/ldap/docker-configured ]]; then
     if [[ -z "$SLAPD_PASSWORD" ]]; then
         echo >&2 "Error: slapd not configured and SLAPD_PASSWORD not set"
         echo >&2 "Did you forget to add -e SLAPD_PASSWORD=... ?"
@@ -47,7 +53,9 @@ EOF
     if [[ -n  "$SLAPD_CONFIG_PASSWORD" ]]; then
         password_hash=`slappasswd -s "${SLAPD_CONFIG_PASSWORD}"`
 
-        sed_safe_password_hash=${password_hash/\//\\\/}
+        sed_safe_password_hash=${password_hash//\//\\\/}
+
+        echo $sed_safe_password_hash
 
         slapcat -n0 -F /etc/ldap/slapd.d -l /tmp/config.ldif
         sed -i "s/\(olcRootDN: cn=admin,cn=config\)/\1\nolcRootPW: ${sed_safe_password_hash}/g" /tmp/config.ldif
@@ -55,7 +63,8 @@ EOF
         slapadd -n0 -F /etc/ldap/slapd.d -l /tmp/config.ldif >/dev/null 2>&1
     fi
 
-    touch /etc/ldap/docker-configured
+    mv /etc/ldap /var/lib/ldap/config
+    ln -s /var/lib/ldap/config /etc/ldap
 fi
 
 exec "$@"