Docker副本不复制脚本

Question

Docker副本不在bash脚本上复制。

FROM alpine:latest

#Install Go and Tini - These remain.
RUN apk add --no-cache go build-base gcc go

RUN apk add --no-cache --update ca-certificates redis git && update-ca-certificates

# Set Env Variables for Go and add Go to Path.
ENV GOPATH /go
ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH

RUN go get github.com/rakyll/hey

RUN echo GOLANG VERSION `go version`
COPY ./bench.sh /root/bench.sh
RUN chmod +x /root/bench.sh
ENTRYPOINT /root/bench.sh

这是剧本-

#!/bin/bash
set -e;

echo "entered";

hey;

我尝试运行上面的Dockerfile

$ docker build -t test-bench .
$ docker run -it test-bench

但我明白错误

/bin/sh: /root/bench.sh: not found

文件确实存在-

$ docker run --rm -it test-bench sh
/ # ls
bin    dev    etc    go     home   lib    media  mnt    opt    proc   root   run    sbin   srv    sys    tmp    usr    var
/ # cd root
~ # ls
bench.sh
~ #

Answer 1

你的docker build成功了吗。当我试图模拟时，发现了以下错误

 ---> Running in 96468658cebd
go: missing Git command. See https://golang.org/s/gogetcmd
package github.com/rakyll/hey: exec: "git": executable file not found in $PATH
The command '/bin/sh -c go get github.com/rakyll/hey' returned a non-zero code: 1

尝试使用Dockerfile git安装RUN apk add --no-cache go build-base gcc go git，然后再次运行。

这里的COPY操作似乎是正确的。确保它存在于执行docker build的目录中。

好的，脚本使用的是/bin/bash，在高寒图像中，bash二进制文件不可用。要么必须安装它，要么应该使用/bin/sh外壳。