diff --git a/README.md b/README.md
index 7bba8d7f..6ca5f203 100644
--- a/README.md
+++ b/README.md
@@ -631,6 +631,7 @@ Below is the complete list of parameters that can be set using environment varia
 - **DB_POOL**: The database connection pool count. Defaults to `5`.
 - **DB_SKIP_CHECK**: Skip waiting for the database to start. Defaults to `false`.
 - **DB_SSL_MODE**: Configures the database ssl mode. Valid options for [postgresql](https://www.postgresql.org/docs/9.1/libpq-ssl.html) (disable|allow|prefer|require|verify-ca|verify-full) and [mysql](https://dev.mysql.com/doc/refman/5.7/en/connection-options.html#option_general_ssl-mode) (disable||preferred|required|verify_ca|verify_identity). Defaults to ''
+- **LOGGER_LEVEL**: Configures the amount of messages that are generated when redmine is running. Possible values are: `debug`, `info`, `warn`, `error`. Defaults to `info`
 - **NGINX_ENABLED**: Enable/disable the nginx server. Disabling Nginx is not recommended (see #148), use at your discretion. Defaults to `true`. When disabled publish port `8080` instead of the usual port `80` or `443`.
 - **NGINX_WORKERS**: The number of nginx workers to start. Defaults to `1`.
 - **NGINX_MAX_UPLOAD_SIZE**: Maximum acceptable upload size. Defaults to `20m`.
diff --git a/assets/runtime/config/redmine/additional_environment.rb b/assets/runtime/config/redmine/additional_environment.rb
index afdf7ff2..2a317a39 100644
--- a/assets/runtime/config/redmine/additional_environment.rb
+++ b/assets/runtime/config/redmine/additional_environment.rb
@@ -1,4 +1,10 @@
-config.gem 'dalli'
-config.action_controller.perform_caching  = true
-config.cache_classes = true
-config.cache_store = :mem_cache_store, "{{MEMCACHE_HOST}}:{{MEMCACHE_PORT}}"
+# Copy this file to additional_environment.rb and add any statements
+# that need to be passed to the Rails::Initializer.  `config` is
+# available in this context.
+#
+# Example:
+#
+#   config.log_level = :debug
+#   ...
+#
+
diff --git a/assets/runtime/env-defaults b/assets/runtime/env-defaults
index 10231476..6bcc722c 100644
--- a/assets/runtime/env-defaults
+++ b/assets/runtime/env-defaults
@@ -3,6 +3,9 @@
 # DEBUGGING
 DEBUG=${DEBUG:-}
 
+# LOGGER
+LOGGER_LEVEL=${LOGGER_LEVEL:-info}
+
 ## CORE
 REDMINE_ATTACHMENTS_DIR=${REDMINE_ATTACHMENTS_DIR:-$REDMINE_DATA_DIR/files}
 REDMINE_PLUGINS_DIR=${REDMINE_PLUGINS_DIR:-$REDMINE_DATA_DIR/plugins}
diff --git a/assets/runtime/functions b/assets/runtime/functions
index 9e8a39e6..e429657b 100644
--- a/assets/runtime/functions
+++ b/assets/runtime/functions
@@ -9,7 +9,7 @@ REDMINE_CONFIG="${REDMINE_INSTALL_DIR}/config/configuration.yml"
 REDMINE_DATABASE_CONFIG="${REDMINE_INSTALL_DIR}/config/database.yml"
 REDMINE_UNICORN_CONFIG="${REDMINE_INSTALL_DIR}/config/unicorn.rb"
 REDMINE_SECRET_CONFIG="${REDMINE_INSTALL_DIR}/config/initializers/secret_token.rb"
-REDMINE_MEMCACHED_CONFIG="${REDMINE_INSTALL_DIR}/config/additional_environment.rb"
+REDMINE_ADDITIONAL_CONFIG="${REDMINE_INSTALL_DIR}/config/additional_environment.rb"
 REDMINE_NGINX_CONFIG="/etc/nginx/sites-enabled/redmine"
 
 IMAGE_VERSION=$(cat /VERSION)
@@ -329,13 +329,20 @@ redmine_configure_memcached() {
 
   if [[ ${MEMCACHE_ENABLED} == true ]]; then
     echo "Configuring redmine::memcached..."
-    install_template ${REDMINE_USER}: redmine/additional_environment.rb ${REDMINE_MEMCACHED_CONFIG} 0644
-    update_template ${REDMINE_MEMCACHED_CONFIG} \
-      MEMCACHE_HOST \
-      MEMCACHE_PORT
+    {
+      echo "config.gem 'dalli'"
+      echo "config.action_controller.perform_caching  = true"
+      echo "config.cache_classes = true"
+      echo "config.cache_store = :mem_cache_store, ${MEMCACHE_HOST}:${MEMCACHE_PORT}"
+    } >> "${REDMINE_ADDITIONAL_CONFIG}"
   fi
 }
 
+redmine_configure_logger() {
+  echo "Configuring redmine::logger..."
+  echo "config.log_level = :${LOGGER_LEVEL}" >> "${REDMINE_ADDITIONAL_CONFIG}"
+}
+
 redmine_configure_unicorn() {
   echo "Configuring redmine::unicorn..."
   if [[ ${REDMINE_RELATIVE_URL_ROOT} == / ]]; then
@@ -852,6 +859,7 @@ symlink_dotfiles() {
 install_configuration_templates() {
   echo "Installing configuration templates..."
 
+  install_template ${REDMINE_USER}: redmine/additional_environment.rb ${REDMINE_ADDITIONAL_CONFIG} 0644
   install_template ${REDMINE_USER}: redmine/configuration.yml ${REDMINE_CONFIG} 0640
   install_template ${REDMINE_USER}: redmine/database.yml ${REDMINE_DATABASE_CONFIG} 0640
   install_template ${REDMINE_USER}: redmine/unicorn.rb ${REDMINE_UNICORN_CONFIG} 0644
@@ -892,6 +900,7 @@ configure_redmine() {
 
   redmine_configure_database
   redmine_configure_memcached
+  redmine_configure_logger
   redmine_configure_unicorn
   redmine_configure_secret_token
   redmine_configure_concurrent_uploads