fix(docker): fix bootstrap and dev docker image build (#2857)

This reverts commit 380e6fccb6. This change ensures that BUILDKIT is enabled to pick up the correct Dockerfile and .dockerignore files during the build process of the dev image.

Fixes #2843. Closes #2844.

.dockerignore

@@ -1,26 +1,5 @@
-# CI/Git Directories
+# Ignore All
-.git
+*
-.cache
-.buildkite
-.github
-coverage.txt
-Dockerfile*
-
-# Node Modules Directories
-**/node_modules
-
-# Documentation
-docs
-examples
-
-# Dot Files and Markdown
-.*
-*.md
-
-# Other
-internal/server/public_html
-authelia.service
-bootstrap.sh
 
 # Overrides
 !authelia-linux-*

bootstrap.sh

@@ -5,7 +5,8 @@ if [[ $(uname) == "Darwin" ]]; then
   exit
 fi
 
-export PATH=$PATH:./cmd/authelia-scripts/:./.buildkite/steps/:$GOPATH/bin:./web/node_modules/.bin:/tmp
+export PATH=$PATH:./cmd/authelia-scripts/:./.buildkite/steps/:$GOPATH/bin:./web/node_modules/.bin:/tmp \
+DOCKER_BUILDKIT=1
 
 if [[ -z "$OLD_PS1" ]]; then
   OLD_PS1="$PS1"