Implementation of Docker container state conversion

Implementation of Docker container state conversion

A docker container state transition diagram

Second actual combat

[root@localhost ~]# docker info
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 3
Server Version: 17.09.0-ce
Storage Driver: overlay
Backing Filesystem: xfs
Supports d_type: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 06b9cb35161009dcb7123345749fef02f7cea8e0
runc version: 3f2f8b84a77f73d38244dd690525642a72156c64
init version: 949e6fa
Security Options:
seccomp
 Profile: default
Kernel Version: 3.10.0-327.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 993MiB
Name: localhost.localdomain
ID: 6ULL:CFMN:YT7C:4RXZ:2CJ4:26H2:D4Y6:YHUP:SH7L:QLEQ:AWEB:EWTB
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
WARNING: overlay: the backing xfs filesystem is formatted without d_type support, which leads to incorrect behavior.
     Reformat the filesystem with ftype=1 to enable d_type support.
     Running without d_type support will not be supported in future releases.
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
clearlinux latest 32685d114002 6 days ago 62.5MB
busybox latest 6ad733544a63 6 days ago 1.13MB
alpine latest 053cde6e8953 6 days ago 3.96MB
[root@localhost ~]# docker run -d --name box1 busybox
4ca3d293206cd34e449075491679b0cddd619b451cac7a3d20d5b5daaa6095d8
[root@localhost ~]# docker run -itd --name box2 busybox
9c1578a50f0b97d48c7501dda6d6e1c3d8b3d9ed0e37416120f91f5a634fb12f
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9c1578a50f0b busybox "sh" 13 seconds ago Up 11 seconds box2
4ca3d293206c busybox "sh" 47 seconds ago Exited (0) 45 seconds ago box1
[root@localhost ~]# docker run -itd --name box3 busybox
e84a746ea040603aa4db791da77aee2e2502ff5b184e89049a74805671a58ba9
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e84a746ea040 busybox "sh" 5 seconds ago Up 4 seconds box3
9c1578a50f0b busybox "sh" About a minute ago Up About a minute box2
4ca3d293206c busybox "sh" 2 minutes ago Exited (0) 2 minutes ago    
        box1
[root@localhost ~]# docker info
Containers: 3
Running: 2
Paused: 0
Stopped: 1
Images: 3
Server Version: 17.09.0-ce
Storage Driver: overlay
Backing Filesystem: xfs
Supports d_type: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 06b9cb35161009dcb7123345749fef02f7cea8e0
runc version: 3f2f8b84a77f73d38244dd690525642a72156c64
init version: 949e6fa
Security Options:
seccomp
 Profile: default
Kernel Version: 3.10.0-327.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 993MiB
Name: localhost.localdomain
ID: 6ULL:CFMN:YT7C:4RXZ:2CJ4:26H2:D4Y6:YHUP:SH7L:QLEQ:AWEB:EWTB
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
WARNING: overlay: the backing xfs filesystem is formatted without d_type support, which leads to incorrect behavior.
     Reformat the filesystem with ftype=1 to enable d_type support.
     Running without d_type support will not be supported in future releases.
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e84a746ea040 busybox "sh" 4 minutes ago Up 4 minutes box3
9c1578a50f0b busybox "sh" 6 minutes ago Up 6 minutes box2
4ca3d293206c busybox "sh" 6 minutes ago Exited (0) 6 minutes ago box1
[root@localhost ~]# docker restart 9c
9c
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e84a746ea040 busybox "sh" 5 minutes ago Up 5 minutes box3
9c1578a50f0b busybox "sh" 7 minutes ago Up 2 seconds box2
4ca3d293206c busybox "sh" 8 minutes ago Exited (0) 8 minutes ago box1
[root@localhost ~]# docker pause 9c
9c
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e84a746ea040 busybox "sh" 8 minutes ago Up 8 minutes box3
9c1578a50f0b busybox "sh" 10 minutes ago Up 2 minutes (Paused) box2
4ca3d293206c busybox "sh" 10 minutes ago Exited (0) 10 minutes ago box1
[root@localhost ~]# docker info
Containers: 3
Running: 1
Paused: 1
Stopped: 1
Images: 3
Server Version: 17.09.0-ce
Storage Driver: overlay
Backing Filesystem: xfs
Supports d_type: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 06b9cb35161009dcb7123345749fef02f7cea8e0
runc version: 3f2f8b84a77f73d38244dd690525642a72156c64
init version: 949e6fa
Security Options:
seccomp
 Profile: default
Kernel Version: 3.10.0-327.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 993MiB
Name: localhost.localdomain
ID: 6ULL:CFMN:YT7C:4RXZ:2CJ4:26H2:D4Y6:YHUP:SH7L:QLEQ:AWEB:EWTB
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
WARNING: overlay: the backing xfs filesystem is formatted without d_type support, which leads to incorrect behavior.
     Reformat the filesystem with ftype=1 to enable d_type support.
     Running without d_type support will not be supported in future releases.
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
[root@localhost ~]# docker unpause 9c
9c
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e84a746ea040 busybox "sh" 11 minutes ago Up 11 minutes box3
9c1578a50f0b busybox "sh" 13 minutes ago Up 6 minutes box2
4ca3d293206c busybox "sh" 14 minutes ago Exited (0) 14 minutes ago box1
[root@localhost ~]# docker info
Containers: 3
Running: 2
Paused: 0
Stopped: 1
Images: 3
Server Version: 17.09.0-ce
Storage Driver: overlay
Backing Filesystem: xfs
Supports d_type: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 06b9cb35161009dcb7123345749fef02f7cea8e0
runc version: 3f2f8b84a77f73d38244dd690525642a72156c64
init version: 949e6fa
Security Options:
seccomp
 Profile: default
Kernel Version: 3.10.0-327.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 993MiB
Name: localhost.localdomain
ID: 6ULL:CFMN:YT7C:4RXZ:2CJ4:26H2:D4Y6:YHUP:SH7L:QLEQ:AWEB:EWTB
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
WARNING: overlay: the backing xfs filesystem is formatted without d_type support, which leads to incorrect behavior.
     Reformat the filesystem with ftype=1 to enable d_type support.
     Running without d_type support will not be supported in future releases.
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
[root@localhost ~]# docker kill 9c
9c
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e84a746ea040 busybox "sh" 17 minutes ago Up 17 minutes box3
9c1578a50f0b busybox "sh" 19 minutes ago Exited (137) 3 seconds ago box2
4ca3d293206c busybox "sh" 20 minutes ago Exited (0) 20 minutes ago box1
[root@localhost ~]# docker stop e8
^[[Ae8
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e84a746ea040 busybox "sh" 19 minutes ago Exited (137) 1 second ago box3
9c1578a50f0b busybox "sh" 21 minutes ago Exited (137) 2 minutes ago box2
4ca3d293206c busybox "sh" 22 minutes ago Exited (0) 22 minutes ago box1
[root@localhost ~]# docker start e8
e8
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e84a746ea040 busybox "sh" 22 minutes ago Up 5 seconds box3
9c1578a50f0b busybox "sh" 24 minutes ago Exited (137) 4 minutes ago box2
4ca3d293206c busybox "sh" 24 minutes ago Exited (0) 24 minutes ago box1
[root@localhost ~]# docker start 9c
9c
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e84a746ea040 busybox "sh" 25 minutes ago Up 3 minutes box3
9c1578a50f0b busybox "sh" 27 minutes ago Up 3 seconds box2
4ca3d293206c busybox "sh" 28 minutes ago Exited (0) 28 minutes ago box1
[root@localhost ~]# docker restart 9c
9c
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e84a746ea040 busybox "sh" 26 minutes ago Up 4 minutes box3
9c1578a50f0b busybox "sh" 28 minutes ago Up 7 seconds box2
4ca3d293206c busybox "sh" 28 minutes ago Exited (0) 28 minutes ago box1

Supplementary knowledge: Understand all states of docker containers in one picture

Partial explanation:

Command to create container

run is a combination of create and start

create-created-start

example:

docker create httpd

OCM Hardware Information

docker kill id force close container

die Do not force exit a program, or the process fails

docker pause : Pause all processes in the container.

docker unpause : Resume all processes in the container.

The above Docker container state conversion implementation is all I have to share with you. I hope it can give you a reference. I also hope that you will support 123WORDPRESS.COM.

You may also be interested in:
  • Docker starts in Exited state
  • docker run -v mounts data volumes abnormally, and the container status is always restarting
  • A brief discussion on the problem of Docker run container being in created state
  • After docker run, the status is always Exited
  • Zabbix monitors docker container status [recommended]
  • How to monitor the running status of docker container shell script

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