Use WORKDIR

2.4/Dockerfile

@@ -1,10 +1,11 @@
 FROM httpd:alpine
 
-# This variable is inherited from httpd:alpine image:
+# These variables are inherited from the httpd:alpine image:
 # ENV HTTPD_PREFIX /usr/local/apache2
+# WORKDIR "$HTTPD_PREFIX"
 
 # Copy in our configuration files.
-COPY conf/ "$HTTPD_PREFIX/conf/"
+COPY conf/ conf/
 
 RUN set -ex; \
     # Create empty default DocumentRoot.
@@ -16,35 +17,35 @@ RUN set -ex; \
     \
     # Enable DAV modules.
     for i in dav dav_fs; do \
-        sed -i -e "/^#LoadModule ${i}_module.*/s/^#//" "$HTTPD_PREFIX/conf/httpd.conf"; \
+        sed -i -e "/^#LoadModule ${i}_module.*/s/^#//" "conf/httpd.conf"; \
     done; \
     \
     # Make sure authentication modules are enabled.
     for i in authn_core authn_file authz_core authz_user auth_basic auth_digest; do \
-        sed -i -e "/^#LoadModule ${i}_module.*/s/^#//" "$HTTPD_PREFIX/conf/httpd.conf"; \
+        sed -i -e "/^#LoadModule ${i}_module.*/s/^#//" "conf/httpd.conf"; \
     done; \
     \
     # Make sure other modules are enabled.
     for i in alias headers mime setenvif; do \
-        sed -i -e "/^#LoadModule ${i}_module.*/s/^#//" "$HTTPD_PREFIX/conf/httpd.conf"; \
+        sed -i -e "/^#LoadModule ${i}_module.*/s/^#//" "conf/httpd.conf"; \
     done; \
     \
     # Run httpd as "www-data" (instead of "daemon").
     for i in User Group; do \
-        sed -i -e "s|^$i .*|$i www-data|" "$HTTPD_PREFIX/conf/httpd.conf"; \
+        sed -i -e "s|^$i .*|$i www-data|" "conf/httpd.conf"; \
     done; \
     \
     # Include enabled configs and sites.
     printf '%s\n' "Include conf/conf-enabled/*.conf" \
-        >> "$HTTPD_PREFIX/conf/httpd.conf"; \
+        >> "conf/httpd.conf"; \
     printf '%s\n' "Include conf/sites-enabled/*.conf" \
-        >> "$HTTPD_PREFIX/conf/httpd.conf"; \
+        >> "conf/httpd.conf"; \
     \
     # Enable dav and default site.
-    mkdir -p "$HTTPD_PREFIX/conf/conf-enabled"; \
-    mkdir -p "$HTTPD_PREFIX/conf/sites-enabled"; \
-    ln -s ../conf-available/dav.conf "$HTTPD_PREFIX/conf/conf-enabled"; \
-    ln -s ../sites-available/default.conf "$HTTPD_PREFIX/conf/sites-enabled"; \
+    mkdir -p "conf/conf-enabled"; \
+    mkdir -p "conf/sites-enabled"; \
+    ln -s ../conf-available/dav.conf "conf/conf-enabled"; \
+    ln -s ../sites-available/default.conf "conf/sites-enabled"; \
     # Install openssl if we need to generate a self-signed certificate.
     apk add --no-cache openssl