| #!/usr/bin/env bash |
| set -e |
| |
| docker-version-osarch() { |
| if ! type docker &>/dev/null; then |
| # docker is not installed |
| return |
| fi |
| local target="$1" # "Client" or "Server" |
| local fmtStr="{{.${target}.Os}}/{{.${target}.Arch}}" |
| if docker version -f "$fmtStr" 2>/dev/null; then |
| # if "docker version -f" works, let's just use that! |
| return |
| fi |
| docker version | awk ' |
| $1 ~ /^(Client|Server):$/ { section = 0 } |
| $1 == "'"$target"':" { section = 1; next } |
| section && $1 == "OS/Arch:" { print $2 } |
| |
| # old versions of Docker |
| $1 == "OS/Arch" && $2 == "('"${target,,}"'):" { print $3 } |
| ' |
| } |
| |
| # Retrieve OS/ARCH of docker daemon, e.g. linux/amd64 |
| export DOCKER_ENGINE_OSARCH="${DOCKER_ENGINE_OSARCH:=$(docker-version-osarch 'Server')}" |
| export DOCKER_ENGINE_GOOS="${DOCKER_ENGINE_OSARCH%/*}" |
| export DOCKER_ENGINE_GOARCH="${DOCKER_ENGINE_OSARCH##*/}" |
| DOCKER_ENGINE_GOARCH=${DOCKER_ENGINE_GOARCH:=amd64} |
| |
| # and the client, just in case |
| export DOCKER_CLIENT_OSARCH="$(docker-version-osarch 'Client')" |
| export DOCKER_CLIENT_GOOS="${DOCKER_CLIENT_OSARCH%/*}" |
| export DOCKER_CLIENT_GOARCH="${DOCKER_CLIENT_OSARCH##*/}" |
| DOCKER_CLIENT_GOARCH=${DOCKER_CLIENT_GOARCH:=amd64} |
| |
| DOCKERFILE='Dockerfile' |
| |
| if [ "${DOCKER_ENGINE_GOOS:-$DOCKER_CLIENT_GOOS}" = "windows" ]; then |
| DOCKERFILE='Dockerfile.windows' |
| fi |
| |
| export DOCKERFILE |