github.com/demonoid81/moby@v0.0.0-20200517203328-62dd8e17c460/hack/make/.ensure-emptyfs (about) 1 #!/usr/bin/env bash 2 set -e 3 4 if ! docker image inspect emptyfs > /dev/null; then 5 # build a "docker save" tarball for "emptyfs" 6 # see https://github.com/demonoid81/moby/pull/5262 7 # and also https://github.com/demonoid81/moby/issues/4242 8 dir="$DEST/emptyfs" 9 uuid=511136ea3c5a64f264b78b5433614aec563103b4d4702f3ba7d4d2698e22c158 10 mkdir -p "$dir/$uuid" 11 ( 12 echo '{"emptyfs":{"latest":"511136ea3c5a64f264b78b5433614aec563103b4d4702f3ba7d4d2698e22c158"}}' > "$dir/repositories" 13 cd "$dir/$uuid" 14 echo '{"id":"511136ea3c5a64f264b78b5433614aec563103b4d4702f3ba7d4d2698e22c158","comment":"Imported from -","created":"2013-06-13T14:03:50.821769-07:00","container_config":{"Hostname":"","Domainname":"","User":"","Memory":0,"MemorySwap":0,"CpuShares":0,"AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"PortSpecs":null,"ExposedPorts":null,"Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":null,"Cmd":null,"Image":"","Volumes":null,"WorkingDir":"","Entrypoint":null,"NetworkDisabled":false,"OnBuild":null},"docker_version":"0.4.0","architecture":"x86_64","Size":0}' > json 15 echo '1.0' > VERSION 16 tar -cf layer.tar --files-from /dev/null 17 ) 18 ( 19 [ -n "$TESTDEBUG" ] && set -x 20 tar -cC "$dir" . | docker load 21 ) 22 rm -rf "$dir" 23 fi