fix bundler for multi-target dockerfile

Dockerfile

@@ -12,6 +12,7 @@ ENV APP_DIR="/srv/app" \
 # values because Docker will read the values once before it starts setting
 # values.
 ENV BUNDLE_BIN="${BUNDLE_PATH}/bin" \
+    BUNDLE_APP_CONFIG="${BUNDLE_PATH}" \
     GEM_HOME="${BUNDLE_PATH}"
 ENV PATH="${APP_DIR}:${APP_DIR}/bin:${BUNDLE_BIN}:${PATH}"
 
@@ -28,7 +29,7 @@ RUN apk add --no-cache \
     $BUILD_PACKAGES
 
 COPY Gemfile* $APP_DIR/
-RUN bundle config --global without 'development test' && \
+RUN bundle config --local without 'development test' && \
     bundle install --jobs=4
 
 RUN apk add --no-cache -X http://dl-cdn.alpinelinux.org/alpine/edge/testing kubectl
@@ -38,7 +39,7 @@ COPY . $APP_DIR/
 
 FROM build as development
 
-RUN bundle config --delete without && \
+RUN bundle config --local --delete without && \
     bundle install --jobs=4
 
 # Specify the script to use when running the container

bin/kubetruth

@@ -1,6 +1,7 @@
 #!/usr/bin/env ruby
 
 $LOAD_PATH.unshift File.expand_path("../lib", __dir__)
+require "bundler/setup"
 
 require "kubetruth"
 require 'kubetruth/cli'

bin/liquid

@@ -1,6 +1,7 @@
 #!/usr/bin/env ruby
 
 $LOAD_PATH.unshift File.expand_path("../lib", __dir__)
+require "bundler/setup"
 
 require "kubetruth"
 require 'kubetruth/cli_liquid_tester'

entrypoint.sh

@@ -9,17 +9,17 @@ case $action in
 
   app)
   echo "Starting app"
-  exec bundle exec kubetruth "$@"
+  exec kubetruth "$@"
   ;;
 
   console)
     echo "Starting console"
-    exec bundle exec rake console
+    exec rake console
   ;;
 
   test)
     echo "Starting tests"
-    exec bundle exec rspec
+    exec rspec
   ;;
 
   bash)
@@ -31,12 +31,7 @@ case $action in
     exec bash "${bash_args[@]}"
   ;;
 
-  exec)
-    exec "$@"
-  ;;
-
   *)
-    echo "Unknown action: '$action', defaulting to exec"
     exec $action "$@"
   ;;