gpg fix

Dockerfile

@@ -1,4 +1,14 @@
 FROM alpine:latest
 
-RUN apk add --no-cache kubectl gpg
+ARG USER="user"
+
+RUN apk add --no-cache kubectl gpg gpg-agent bash && \
+    addgroup $USER && \
+    adduser -G $USER -D $USER
+
+USER $USER
+WORKDIR /home/$USER
+
+RUN gpg -k
+