UPD: everything is better now :)

.gitignore

@@ -1 +1 @@
-django-test
+src/django-test

Dockerfile

@@ -8,7 +8,7 @@ RUN dnf -y update && \
 
 COPY container-files/httpd-layer/ /
 
-COPY django-test /srv/src/django-test
+COPY src/django-test /srv/src/django-test
 COPY container-files/django-test-layer/ /
 RUN /srv/bin/setup-django-test.sh /srv/django-test /srv/src/django-test
 

Makefile

@@ -1,17 +1,28 @@
 APPLICATION_NAME := django-test
-IMAGE_NAME := heinzel/$(APPLICATION_NAME)
+REPO_URL := https://heinzelwelt.de/vcs/python/django-test
+REPO_DIR := src/$(APPLICATION_NAME)
+IMAGE_NAME := $(APPLICATION_NAME)
 
 DOCKER := docker
+GIT    := git
 
-.PHONY: default help image run
+.PHONY: default help image test-run dist-clean
 
 default:	image
 
 help:
 	@echo "There is no help."
 
-image:
+$(REPO_DIR):
+	$(GIT) clone $(REPO_URL) $@
+
+$(IMAGE_NAME):	$(REPO_DIR)
 	$(DOCKER) build -t $(IMAGE_NAME) .
 
+image:		$(IMAGE_NAME)
+
 test-run:
 	$(DOCKER) run -ti --rm -p 80:80 $(IMAGE_NAME)
+
+dist-clean:
+	-rm -rf $(REPO_DIR)

README.rst

@@ -5,7 +5,7 @@ Docker container for django-test.
 
 DESCRIPTION
 ===========
-The docker image is derivated from
+The django-heinzel docker image is derivated from
 Fedora image (https://hub.docker.com/_/fedora).
 
 It will contain and run
@@ -17,13 +17,17 @@ It will contain and run
 
 BUILD
 =====
-- ``git clone https://heinzelwelt.de/vcs/python/django-test``
+- ``make``
+
+or alternatively the *long* way:
+
+- ``git clone https://heinzelwelt.de/vcs/python/django-test src/django-test``
 - ``docker build -t IMAGE_NAME .``
 
 
 USAGE
 =====
-- ``docker run -d -p 80:80 -e LOG_LEVEL=error IMAGE_NAME``
+- ``docker run -d -p 80:80 -e SERVER_ADMIN=heinzel@heinzelwelt.de IMAGE_NAME``
 
 The httpd process is listening on port 80/tcp.
 
@@ -35,9 +39,9 @@ CONFIGURATION
 =============
 The following **environment variables** are supported:
 
-- LOG_LEVEL
+- LOG_LEVEL (default: error)
   -- to set the httpd LogLevel directive
-- SERVER_ADMIN
+- SERVER_ADMIN (default: root@localhost)
   -- to set the httpd ServerAdmin directive
 
 

container-files/docker-entrypoint.sh

@@ -1,4 +1,5 @@
 #!/bin/sh
+DEFAULT_LOG_LEVEL="error"
 
 # Disable CustomLog, that is configured by default in upstream.
 sed -i -e 's:^\(\s*\)\(CustomLog\s\s*"logs/access_log"\):\1# Disabled by /docker-entrypoint.sh # \2:' \
@@ -10,7 +11,5 @@ rm -rf /run/httpd/* /tmp/httpd*
 if test "X${SERVER_ADMIN}" != "X" ; then
 	set -- -c "ServerAdmin $SERVER_ADMIN" "$@"
 fi
-if test "X${LOG_LEVEL}" != "X" ; then
-	set -- -c "LogLevel $LOG_LEVEL" "$@"
-fi
+set -- -c "LogLevel ${LOG_LEVEL:-${DEFAULT_LOG_LEVEL}}" "$@"
 exec /usr/sbin/httpd -DFOREGROUND "$@"