diff --git a/cyclos/hooks/pre_deploy b/cyclos/hooks/pre_deploy
new file mode 100755
index 00000000..067036a1
--- /dev/null
+++ b/cyclos/hooks/pre_deploy
@@ -0,0 +1,62 @@
+#!/bin/bash
+
+##
+## Get domain in option of relation "web-proxy"
+##
+
+## XXXvlab: there is a tiny lapse of time where database is not yet
+## installed, and admin password is the default value.
+
+
+. lib/common
+
+set -ex
+
+
+admin_password=$(options-get admin-password 2>/dev/null ) || exit 1
+
+CONTROL_PASSWORD_FILE="$SERVICE_DATASTORE/.control-pass"
+## Was it already properly propagated to database ?
+control_password=$(H "${admin_password}")
+if ! [ -e "$CONTROL_PASSWORD_FILE" ] || [ "$control_password" != "$(cat "$CONTROL_PASSWORD_FILE")" ]; then
+
+    hash="$(htpasswd -nbBC 10 USER "$admin_password" | cut -f 2- -d :)" || {
+        err "Couldn't generate hash for admin password."
+        exit 1
+    }
+
+    if ! sql < <(e "
+    UPDATE passwords SET value = '$hash'
+    WHERE user_id = 1
+      AND status = 'ACTIVE'
+      AND password_type_id in (
+        SELECT id FROM password_types
+        WHERE input_method = 'TEXT_BOX'
+          AND password_mode = 'MANUAL');
+    "); then
+        debug "Failed to set password for admin users."
+        exit 1
+    fi
+    e "$control_password" > "$CONTROL_PASSWORD_FILE"
+fi
+
+
+
+url=$(named-relation-get "web-proxy" url) || exit 1
+
+CONTROL_URL_FILE="$SERVICE_DATASTORE/.control-url"
+## Was it already properly propagated to database ?
+control_url=$(H "${url}")
+if ! [ -e "$CONTROL_URL_FILE" ] || [ "$control_url" != "$(cat "$CONTROL_URL_FILE")" ]; then
+    ## In ``configurations`` table, columns login_url, logout_url, root_url
+
+    if ! sql < <(e "
+    UPDATE configurations
+    SET
+         root_url = '$url'
+    "); then
+        debug "Failed to set password for admin users."
+        exit 1
+    fi
+    e "$control_password" > "$CONTROL_URL_FILE"
+fi
diff --git a/cyclos/lib/common b/cyclos/lib/common
index c127b1da..7ba451a5 100644
--- a/cyclos/lib/common
+++ b/cyclos/lib/common
@@ -1,4 +1,4 @@
-# -*- mode: bash -*-
+# -*- mode: shell-script -*-
 
 
 CYCLOS_CONFIG="/usr/local/cyclos/WEB-INF/classes/cyclos.properties"
@@ -12,3 +12,62 @@ cyclos:build() {
         docker cp "$container_id":"$CYCLOS_CONFIG" "$HOST_CYCLOS_CONFIG" &&
         docker rm "$container_id"
 }
+
+
+named-relation-get-target-service() {
+    local relation="$1" ts
+    if ! read-0 ts _ _ < <(get_service_relation "$SERVICE_NAME" "$relation"); then
+        err "Couldn't find relation ${DARKCYAN}$relation${NORMAL}."
+        return 1
+    fi
+    e "$ts"
+}
+
+
+## XXXvlab: Consider for inclusion in compose-core
+relation-get-config() {
+    local relation="$1" ts relation_dir
+
+    ts=$(named-relation-get-target-service "$relation") || return 1
+    relation_dir=$(get_relation_data_dir "$SERVICE_NAME" "$ts" "$relation") || return 1
+    cat "${relation_dir}/data"
+}
+
+
+named-relation-get() {
+    local relation="$1" key="$2" config
+
+    config=$(relation-get-config "$relation") || return 1
+
+    e "$config" | shyaml get-value "$key" || {
+        err "Couldn't get ${WHITE}$key${NORMAL} value" \
+            "in ${DARKCYAN}$relation${NORMAL} relation's data."
+        exit 1
+    }
+}
+
+
+sql() {
+    (
+        DBNAME="$(named-relation-get "postgres-database" dbname)" || exit 1
+        ts=$(named-relation-get-target-service "postgres-database") || exit 1
+
+        export SERVICE_NAME="$ts"
+        export SERVICE_DATASTORE="$DATASTORE/$SERVICE_NAME"
+        DOCKER_BASE_IMAGE=$(service_base_docker_image "$SERVICE_NAME")
+        export DOCKER_BASE_IMAGE
+
+        target_charm=$(get_service_charm "$ts") || exit 1
+        target_charm_path=$(charm.get_dir "$target_charm") || exit 1
+
+        set +e
+
+        . "$target_charm_path/lib/common"
+
+        set -e
+
+        ensure_db_docker_running
+
+        ddb "$DBNAME"
+    )
+}
\ No newline at end of file
diff --git a/cyclos/metadata.yml b/cyclos/metadata.yml
index 3e858dae..57f0efd8 100644
--- a/cyclos/metadata.yml
+++ b/cyclos/metadata.yml
@@ -24,6 +24,8 @@ uses:
         - earthdistance
         - postgis
         - unaccent
+      init-sql: !bash-stdout |
+        zcat "$BASE_CHARM_PATH/src/init.sql.gz"
   log-rotate:
     #constraint: required | recommended | optional
     #auto: pair | summon | none ## default: pair
diff --git a/cyclos/src/init.sql.gz b/cyclos/src/init.sql.gz
new file mode 100644
index 00000000..8bb0f32a
Binary files /dev/null and b/cyclos/src/init.sql.gz differ