toolbox: K8s tools moved to community@edge

toolbox/Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:latest
+FROM alpine:edge
 LABEL maintainer "J. Elfring <code@elfring.ms>"
 
 RUN apk add --update --no-cache \
@@ -8,7 +8,9 @@ RUN apk add --update --no-cache \
             ca-certificates \
             curl \
             git \
+            helm \
             jq \
+            kubectl \
             msmtp \
             mysql-client \
             netcat-openbsd \
@@ -22,10 +24,6 @@ RUN apk add --update --no-cache \
             w3m \
             wget
 
-RUN apk add --update --no-cache --repository http://dl-3.alpinelinux.org/alpine/edge/testing/ \
-            helm \
-			kubectl
-
 ADD assets/profile.d/* /etc/profile.d/
 COPY assets/vimrc /etc/vim/vimrc