错误时启动一个容器

Question

我试着运行一个简单的容器中，并得到了错误消息

docker run docker/whalesay boo 
Error response from daemon: Cannot start container 843b258e583b1e9966dc9b771f613e60b887ecc2059376473e06ede68e1bd347: [8] System error: exec: "boo": executable file not found in $PATH 

我在做什么错？

Answer 1

您试图在容器内执行“boo”命令。实际上，你要运行的容器内的cowsay程序，嘘声传递给是：

$ docker run docker/whalesay cowsay boo 
_____ 
<boo> 
----- 
    \ 
    \ 
     \  
        ##  .    
       ## ## ##  ==    
      ## ## ## ##  ===    
     /""""""""""""""""___/ ===   
    ~~~ {~~ ~~~~ ~~~ ~~~~ ~~ ~/===- ~~~ 
     \______ o   __/    
     \ \  __/    
      \____\______/