removed sed replace when looking for dns

Dockerfile

@@ -1,4 +1,5 @@
-FROM minimal:2.35
-MAINTAINER gyurix
+FROM alpine
+
+RUN apk add --update --no-cache openssl jq curl ca-certificates busybox-extras
 COPY entrypoint.sh /entrypoint.sh
 ENTRYPOINT ["/entrypoint.sh"]

entrypoint.sh

@@ -71,7 +71,7 @@ name_resolver() {
 		EXISTS=$(grep -w $D $HOST_FILE);
 		#EXISTS=$(grep -w "$D-" $HOST_FILE); # TODO?
 		if [ -n "$EXISTS" ]; then # selector exists in hosts file
-			APP_IP=$(echo $EXISTS | sed s/$D//g); # remove all selectors
+			APP_IP=$(echo $EXISTS | awk '{print $1}'); # remove all selectors
 			debug "APP_IP: "$APP_IP;
 		else
 			debug "no matching APPLICATION NAME found in $HOST_FILE"