为什么docker容器总是重新启动？

Question

我在后台运行一个容器：

docker run --restart always --name lnmp -v /Users/gedongdong/web:/var/www/ -itd lnmp

dockerfile：

FROM alpine:edge
LABEL [email protected]

RUN mkdir -p /run/nginx && mkdir -p /shell

RUN echo http://mirrors.aliyun.com/alpine/edge/main > /etc/apk/repositories && \
echo http://mirrors.aliyun.com/alpine/edge/community >> /etc/apk/repositories && \
apk update && apk add --no-cache nginx

COPY vhosts.conf /etc/nginx/conf.d/
COPY start.sh /shell
RUN chmod -R 777 /shell


EXPOSE 80 443 6379

CMD ["/shell/start.sh"]

start.是:

nginx -c /etc/nginx/nginx.conf
tail -f /dev/null

vhosts.conf：

 server {
    listen 80;
    server_name docker.test;
    root /var/www;
    index index.html;
}

当我使用docker ps -a时：

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                          PORTS               NAMES
3a3910c0dc29        lnmp                "/shell/start.sh"   16 minutes ago      Restarting (1) 50 seconds ago                       lnmp

docker ps -a为什么我的容器总是重新启动？

Answer 1

将#!/bin/sh添加到您的start.sh文件中

#!/bin/sh
nginx -c /etc/nginx/nginx.conf
tail -f /dev/null

为什么容器总是重新启动：

正如Henry在他的评论中指出的那样，你的设置--restart always告诉了这一点。一般情况下，请记住，当容器的PID 1停止/崩溃时，容器会退出。例如，您的容器显示如下内容：

（注意PID 1线，问题出在哪里）

docker container exec -it lnmp top -n 1 -b
Mem: 2846060K used, 3256768K free, 62108K shrd, 83452K buff, 1102096K cached
CPU:   2% usr   2% sys   0% nic  95% idle   0% io   0% irq   0% sirq
Load average: 0.09 0.24 0.27 1/892 41
  PID  PPID USER     STAT   VSZ %VSZ CPU %CPU COMMAND
   10     9 nginx    S    15372   0%   0   0% nginx: worker process
   12     9 nginx    S    15372   0%   5   0% nginx: worker process
   17     9 nginx    S    15372   0%   1   0% nginx: worker process
   11     9 nginx    S    15372   0%   7   0% nginx: worker process
   18     9 nginx    S    15372   0%   5   0% nginx: worker process
   15     9 nginx    S    15372   0%   4   0% nginx: worker process
   14     9 nginx    S    15372   0%   1   0% nginx: worker process
   16     9 nginx    S    15372   0%   4   0% nginx: worker process
    9     1 root     S    14924   0%   6   0% nginx: master process nginx -c /etc/nginx/nginx.conf
    1     0 root     S     1592   0%   1   0% {start.sh} /bin/sh /shell/start.sh
   34     0 root     R     1532   0%   4   0% top -n 1 -b
   13     1 root     S     1524   0%   2   0% tail -f /dev/null

Answer 2

对我来说，这是因为许可问题。我的机器密码已更改，Docker机器中的密码未更新。

要在终端中调试它，请在日志下面编写代码