docker: Add build container files
[petitboot] / docker /
drwxr-xr-x   ..
-rw-r--r-- 336 Dockerfile.builder.amd64
-rw-r--r-- 344 Dockerfile.builder.arm64
-rw-r--r-- 941 README.md
-rwxr-xr-x 2160 build-builder
-rwxr-xr-x 1879 build-pb
-rw-r--r-- 609 builder-include