文件未绑定安装到 docker-compose

Question

我正在运行docker-compose 测试；我的堆栈中将执行实际测试的一部分是以下服务

  tester:
    image: tutum/curl:latest
    volumes:
      - ./ci/wait-for-it.sh:/usr/local/bin/wait-for-it.sh
      - ./webhooks:/app/webhooks
    depends_on:
      - sut
    command: ["wait-for-it.sh", "sut:8080", "-t", "240", "--", "sh", "pytest /app/webhooks"]

命令失败如下：

ERROR: for 0114c9206690_alerta-_tester_1  Cannot start service tester: OCI runtime create failed: container_linux.go:349: starting container process caused "exec: \"wait-for-it.sh\": executable file not found in $PATH": unknown

ERROR: for tester  Cannot start service tester: OCI runtime create failed: container_linux.go:349: starting container process caused "exec: \"wait-for-it.sh\": executable file not found in $PATH": unknown

被挂载的文件确实存在：

▶ ls docker-compose.test.yaml
docker-compose.test.yaml

Workspace/systems-utils/  alerta_dev_infra ✗                                                                         1d ⚑ ◒
▶ ls ./ci/wait-for-it.sh
./ci/wait-for-it.sh

更重要的是，当尝试绑定挂载一个不存在的文件时，我得到的不是与挂载相关的错误，而是与上述相同的错误

  tester:
    image: tutum/curl:latest
    volumes:
      - ./ci/foofile.sh:/usr/local/bin/wait-for-it.sh
      - ./webhooks:/app/webhooks
    depends_on:
      - sut
    command: ["wait-for-it.sh", "sut:8080", "-t", "240", "--", "sh", "pytest /app/webhooks"]

$ docker-compose -f docker-compose.test.yaml up -d

ERROR: for tester  Cannot start service tester: OCI runtime create failed: container_linux.go:349: starting container process caused "exec: \"wait-for-it.sh\": executable file not found in $PATH": unknown
ERROR: Encountered errors while bringing up the project.

我错过了什么？

编辑：关于提到的PATH问题，这里是：

▶ docker run -it tutum/curl:latest printenv
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
HOSTNAME=1f3090676fa0
TERM=xterm
HOME=/

更重要的是，tester 服务配置与this 项目中的完全相同，运行完美。

关于权限问题：

Workspace/systems-utils/alerta-workable  alerta_dev_infra ✗                                                                        1d ⚑ ◒  ⍉
▶ ls -al ./ci/wait-for-it.sh
-rwxr-xr-x  1 pkaramol  staff   5.1K Sep  6 22:02 ./ci/wait-for-it.sh

Answer 1

错误消息非常不言自明 - wait-for-it.sh 不在 $PATH 上。

您需要将 /usr/local/bin 添加到 $PATH 或将命令更改为

command: ["/usr/local/bin/wait-for-it.sh", "sut:8080", "-t", "240", "--", "sh", "pytest /app/webhooks"]

另请参阅对此question 的已接受答案，了解为什么/usr/local/bin 可能不在路径中。

Answer 2

似乎在 $PATH 中找不到“executable 文件”

那么让我们尝试在./ci/wait-for-it.sh文件上设置可执行权限：

$ chmod +x ./ci/wait-for-it.sh