Fix Docker configuration for authentication

Dockerfile

@@ -11,8 +11,10 @@ RUN go build -o rest-server ./cmd/rest-server
 
 FROM alpine
 
-ENV DATA_DIRECTORY /data
-ENV PASSWORD_FILE /data/.htpasswd
+ENV DATA_DIRECTORY="/data"
+ENV PASSWORD_FILE="/data/.htpasswd"
+ENV DISABLE_AUTHENTICATION=""
+ENV OPTIONS=""
 
 RUN apk add --no-cache --update apache2-utils
 

changelog/unreleased/issue-119

@@ -0,0 +1,6 @@
+Security: Fix Docker configuration for DISABLE_AUTHENTICATION
+
+A regression was introduced which caused the DISABLE_AUTHENTICATION environment variable to stop working in Docker configurations, this was due to a new flag being introduced to disable authentication --no-auth. 
+
+https://github.com/restic/rest-server/issues/119
+https://github.com/restic/rest-server/pull/124

docker/entrypoint.sh

@@ -2,7 +2,9 @@
 
 set -e
 
-if [ -z "$DISABLE_AUTHENTICATION" ]; then
+if [ -n "$DISABLE_AUTHENTICATION" ]; then
+    OPTIONS="--no-auth $OPTIONS"
+else
     if [ ! -f "$PASSWORD_FILE" ]; then
         touch "$PASSWORD_FILE"
     fi