Dockramp是一个客户端驱动的Docker容器镜像构建工具。
主要特性：
没有上下文上传
高效分层和缓存
更丰富和扩展性更强的Dockerfile语法
安装：
project_dir="$HOME/dockramp/src/github.com/jlhawn/dockramp"mkdir -p $project_dirgit clone https://github.com/jlhawn/dockramp.git $project_dirGOPATH="$project_dir/Godeps/_workspace:$HOME/dockramp" go build -o /usr/local/bin/dockramp github.com/jlhawn/dockramp/cmd/dockramp使用：
$ # Executes the Dockerfile in this repository.$ dockramp Step 0: FROM golang:1.4.2Step 1: MAINTAINER "Josh Hawn <jlhawn@docker.com> (github:jlhawn)"Step 2: ENV PROJ_DIR /go/src/github.com/jlhawn/dockrampStep 3: RUN sh -c "mkdir -p $PROJ_DIR" ---> 0744c1be2f5fb40c355bace595171c180f2a7b2d19ec15e0c92da2fa0c1d7198Step 4: COPY . /go/src/github.com/jlhawn/dockramp ---> 8a40aa285e0ecc70ba5361085ef2faf0e755a8dbf7f2224b377c5c0035dc22a5Step 5: RUN shInput: export GOPATH="$PROJ_DIR/Godeps/_workspace:$GOPATH" go build -o /usr/local/bin/dockramp github.com/jlhawn/dockramp/cmd/dockramp ---> 029e66e2587118f5f6c5176da65ffbde3b501b25136a637c3d700ee369104374Successfully built 029e66e2587118f5f6c5176da65ffbde3b501b25136a637c3d700ee369104374You can use the -C flag to specify a directory to use as the build context. You can also specify any Dockerfile with the -f flag (this file does not need to be within the context directory!).dockramp also supports many of the standard options used by docker and uses many of the same environment variables and configuration files used by docker as well. Here is the full list of currently supported arguments:$ dockramp --helpUsage of dockramp: --cacert="": Trust certs signed only by this CA --cert="": TLS client certificate --key="": TLS client key --tls=false: Use TLS client cert/key (implied by --tlsverify) --tlsverify=true: Use TLS and verify the remote server certificate -C=".": Build context directory -H="": Docker daemon socket/host to connect to -d=false: enable debug output -f="": Path to Dockerfile -t="": Repository name (and optionally a tag) for the image
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