docker dead 刪除失敗

昨天搭建環境的時候，需要刪除舊的docker容器和鏡像，發現了一個刪除不掉的容器，然後開始了百度之路。（看博文前先重啓docker試試，如果不行在繼續看希望能幫助到你）
發現了各種原因找了好幾種解決方法
1、直接找出進程號，然後幹掉進程具體在這裏插入代碼片執行（節選自簡書原文連接）

[root@instance-ww74cmok-2 libcontainerd]# docker rm proxy
Error response from daemon: Driver overlay2 failed to remove root filesystem 784e737579056e2a2e865b3fcd4ccd32dd8e236005e08f7512ad06441ea48d6d: remove /mnt/docker/data/overlay2/be672677265b39ed177a79f834baf63f4746faf5f73cba3b71c79ddaa024d0a0/merged: device or resource busy

[root@instance-ww74cmok-2 libcontainerd]# grep docker /proc/*/mountinfo|grep be672677265b39ed177a79f834baf63f4746faf5f
/proc/41386/mountinfo:266 260 0:56 / /mnt/docker/data/overlay2/be672677265b39ed177a79f834baf63f4746faf5f73cba3b71c79ddaa024d0a0/merged rw,relatime shared:146 - overlay overlay rw,lowerdir=/mnt/docker/data/overlay2/l/7KZQP373LMR2YNDLGVCOAO6HPD:/mnt/docker/data/overlay2/l/PZMWE2VDX4O2BCHEI2TUZUIPUP:/mnt/docker/data/overlay2/l/3GN3WH2OMZE4VEB667HEX7GIF4:/mnt/docker/data/overlay2/l/JM4S4P76O7CQLRU6JHHGZIAJJR:/mnt/docker/data/overlay2/l/IT54IDZSZAS4SNWJYKGSUITWTO:/mnt/docker/data/overlay2/l/ECULN7DI6S565DMEIVIX43HYJL:/mnt/docker/data/overlay2/l/R6TREWCFOXRYT3ZWIKITG3PEFJ:/mnt/docker/data/overlay2/l/QCCUZ66IANXVWGUUPBU5I4ZFUM:/mnt/docker/data/overlay2/l/ZHH23PQ4HYSHQES3LSLYJQBULT:/mnt/docker/data/overlay2/l/FUPO2U3IUKC7YRB6RZPANPNYGN:/mnt/docker/data/overlay2/l/ZVQEZSR4T4OSRNATTXFEK6WTUC:/mnt/docker/data/overlay2/l/7UIBFOQG7WQR7PDUG2P6T7ED6H:/mnt/docker/data/overlay2/l/Y2LOEGAG3LQ46G6LEMB5MNF5OD:/mnt/docker/data/overlay2/l/UEPEBRKPRX6IRK6FFSBWSRQQNA:/mnt/docker/data/overlay2/l/KWDGJS5UF3SIG3EHH3DYDI4JXE:/mnt/docker/data/overlay2/l/ARQ52BAAQ3X2JOLEG3AQK3H76B:/mnt/docker/data/overlay2/l/2RPDDZH2EPCPKNLGQYLXYFKQHQ,upperdir=/mnt/docker/data/overlay2/be672677265b39ed177a79f834baf63f4746faf5f73cba3b71c79ddaa024d0a0/diff,workdir=/mnt/docker/data/overlay2/be672677265b39ed177a79f834baf63f4746faf5f73cba3b71c79ddaa024d0a0/work
/proc/52227/mountinfo:266 260 0:56 / /mnt/docker/data/overlay2/be672677265b39ed177a79f834baf63f4746faf5f73cba3b71c79ddaa024d0a0/merged rw,relatime shared:146 - overlay overlay rw,lowerdir=/mnt/docker/data/overlay2/l/7KZQP373LMR2YNDLGVCOAO6HPD:/mnt/docker/data/overlay2/l/PZMWE2VDX4O2BCHEI2TUZUIPUP:/mnt/docker/data/overlay2/l/3GN3WH2OMZE4VEB667HEX7GIF4:/mnt/docker/data/overlay2/l/JM4S4P76O7CQLRU6JHHGZIAJJR:/mnt/docker/data/overlay2/l/IT54IDZSZAS4SNWJYKGSUITWTO:/mnt/docker/data/overlay2/l/ECULN7DI6S565DMEIVIX43HYJL:/mnt/docker/data/overlay2/l/R6TREWCFOXRYT3ZWIKITG3PEFJ:/mnt/docker/data/overlay2/l/QCCUZ66IANXVWGUUPBU5I4ZFUM:/mnt/docker/data/overlay2/l/ZHH23PQ4HYSHQES3LSLYJQBULT:/mnt/docker/data/overlay2/l/FUPO2U3IUKC7YRB6RZPANPNYGN:/mnt/docker/data/overlay2/l/ZVQEZSR4T4OSRNATTXFEK6WTUC:/mnt/docker/data/overlay2/l/7UIBFOQG7WQR7PDUG2P6T7ED6H:/mnt/docker/data/overlay2/l/Y2LOEGAG3LQ46G6LEMB5MNF5OD:/mnt/docker/data/overlay2/l/UEPEBRKPRX6IRK6FFSBWSRQQNA:/mnt/docker/data/overlay2/l/KWDGJS5UF3SIG3EHH3DYDI4JXE:/mnt/docker/data/overlay2/l/ARQ52BAAQ3X2JOLEG3AQK3H76B:/mnt/docker/data/overlay2/l/2RPDDZH2EPCPKNLGQYLXYFKQHQ,upperdir=/mnt/docker/data/overlay2/be672677265b39ed177a79f834baf63f4746faf5f73cba3b71c79ddaa024d0a0/diff,workdir=/mnt/docker/data/overlay2/be672677265b39ed177a79f834baf63f4746faf5f73cba3b71c79ddaa024d0a0/work
/proc/52228/mountinfo:266 260 0:56 / /mnt/docker/data/overlay2/be672677265b39ed177a79f834baf63f4746faf5f73cba3b71c79ddaa024d0a0/merged rw,relatime shared:146 - overlay overlay rw,lowerdir=/mnt/docker/data/overlay2/l/7KZQP373LMR2YNDLGVCOAO6HPD:/mnt/docker/data/overlay2/l/PZMWE2VDX4O2BCHEI2TUZUIPUP:/mnt/docker/data/overlay2/l/3GN3WH2OMZE4VEB667HEX7GIF4:/mnt/docker/data/overlay2/l/JM4S4P76O7CQLRU6JHHGZIAJJR:/mnt/docker/data/overlay2/l/IT54IDZSZAS4SNWJYKGSUITWTO:/mnt/docker/data/overlay2/l/ECULN7DI6S565DMEIVIX43HYJL:/mnt/docker/data/overlay2/l/R6TREWCFOXRYT3ZWIKITG3PEFJ:/mnt/docker/data/overlay2/l/QCCUZ66IANXVWGUUPBU5I4ZFUM:/mnt/docker/data/overlay2/l/ZHH23PQ4HYSHQES3LSLYJQBULT:/mnt/docker/data/overlay2/l/FUPO2U3IUKC7YRB6RZPANPNYGN:/mnt/docker/data/overlay2/l/ZVQEZSR4T4OSRNATTXFEK6WTUC:/mnt/docker/data/overlay2/l/7UIBFOQG7WQR7PDUG2P6T7ED6H:/mnt/docker/data/overlay2/l/Y2LOEGAG3LQ46G6LEMB5MNF5OD:/mnt/docker/data/overlay2/l/UEPEBRKPRX6IRK6FFSBWSRQQNA:/mnt/docker/data/overlay2/l/KWDGJS5UF3SIG3EHH3DYDI4JXE:/mnt/docker/data/overlay2/l/ARQ52BAAQ3X2JOLEG3AQK3H76B:/mnt/docker/data/overlay2/l/2RPDDZH2EPCPKNLGQYLXYFKQHQ,upperdir=/mnt/docker/data/overlay2/be672677265b39ed177a79f834baf63f4746faf5f73cba3b71c79ddaa024d0a0/diff,workdir=/mnt/docker/data/overlay2/be672677265b39ed177a79f834baf63f4746faf5f73cba3b71c79ddaa024d0a0/work
You have new mail in /var/spool/mail/root
 
[root@instance-ww74cmok-2 libcontainerd]# ^C
[root@instance-ww74cmok-2 libcontainerd]# ^C
[root@instance-ww74cmok-2 libcontainerd]# grep docker /proc/*/mountinfo|grep be672677265b39ed177a79f834baf63f4746faf5f | awk -F ":" '{print $1}' | awk -F "/" '{print $3}'
41386
52227
52228
[root@instance-ww74cmok-2 libcontainerd]# ^C
[root@instance-ww74cmok-2 libcontainerd]# kill -9 41386
[root@instance-ww74cmok-2 libcontainerd]# kill -9 52227
[root@instance-ww74cmok-2 libcontainerd]# kill -9 52228
 
[root@instance-ww74cmok-2 libcontainerd]# docker rm proxy
proxy


[root@instance-ww74cmok-2 libcontainerd]# 說明刪除成功！！！！！

2、這個方法我不太懂，文中說的是吞掉這個錯誤就可以了我也不知道什麼意思懂得大佬求解答（摘自簡書原文連接）

[root@Ieat1 ~]# docker rm -f nginx
Error response from daemon: Driver devicemapper failed to remove root filesystem a838d837988a593de3e997748cc80b1540dd31697f66e93dad275fbeaa5b3278: Device is Busy
[root@Ieat1 ~]# docker ps -a|grep nginx
a838d837988a        nginx                                                   "nginx -g 'daemon ..."   3 weeks ago         Dead 
docker stop nginx 1>/dev/null 2>&1 | exit 0
docker rm -f nginx 1>/dev/null 2>&1 | exit 0
[root@Ieat1 ~]# docker ps -a|grep nginx

很不幸，以上方法沒有解決我的問題，因爲我查看線程的時候他有太多的線程，我不可能一個一個刪除掉，然後我突然想萬能的重啓大法試一試，然後就解決了，就解決了，，，，，。