Docker学习之docker重启参数--restart=always的作用

[root@localhost /]# docker container update --restart=no 1a7a3b5112fd 1a7a3b5112fd [root@localhost /]# systemctl restart docker [root@localhost /]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c5557254c6d9 tomcat " run" 11 minutes ago Up 2 seconds 8080/tcp fervent_goldstine 1a7a3b5112fd tomcat " run" 14 minutes ago Exited (143) 3 seconds ago friendly_clarke [root@localhost ~]# cd /docker/containers/1a7a3b5112fd310dc70903df479203a81d7d64f7c19ea0aca8fff8ece10e04a4/ [root@localhost 1a7a3b5112fd310dc70903df479203a81d7d64f7c19ea0aca8fff8ece10e04a4]# ls config. hostname mounts checkpoints hosts [root@localhost 1a7a3b5112fd310dc70903df479203a81d7d64f7c19ea0aca8fff8ece10e04a4]# more {"Binds":null,"ContainerIDFile":"","LogConfig":{"Type":"json-file","Config":{}},"NetworkMode":"default","PortBindings":{},"RestartPolicy":{"Name":"no","MaximumR etryCount":0},"AutoRemove":false,"VolumeDriver":"","VolumesFrom":null,"CapAdd":null,"CapDrop":null,"Capabilities":null,"Dns":[],"DnsOptions":[],"DnsSearch":[],"Extr aHosts":null,"GroupAdd":null,"IpcMode":"private","Cgroup":"","Links":null,"OomScoreAdj":0,"PidMode":"","Privileged":false,"PublishAllPorts":false,"ReadonlyRootfs":f alse,"SecurityOpt":null,"UTSMode":"","UsernsMode":"","ShmSize":67108864,"Runtime":"runc","ConsoleSize":[0,0],"Isolation":"","CpuShares":0,"Memory":0,"NanoCpus":0,"C groupParent":"","BlkioWeight":0,"BlkioWeightDevice":[],"BlkioDeviceReadBps":null,"BlkioDeviceWriteBps":null,"BlkioDeviceReadIOps":null,"BlkioDeviceWriteIOps":null," CpuPeriod":0,"CpuQuota":0,"CpuRealtimePeriod":0,"CpuRealtimeRuntime":0,"CpusetCpus":"","CpusetMems":"","Devices":[],"DeviceCgroupRules":null,"DeviceRequests":null," KernelMemory":0,"KernelMemoryTCP":0,"MemoryReservation":0,"MemorySwap":0,"MemorySwappiness":null,"OomKillDisable":false,"PidsLimit":null,"Ulimits":null,"CpuCount":0 ,"CpuPercent":0,"IOMaximumIOps":0,"IOMaximumBandwidth":0,"MaskedPaths":["/proc/asound","/proc/acpi","/proc/kcore","/proc/keys","/proc/latency_stats","/proc/timer_li st","/proc/timer_stats","/proc/sched_debug","/proc/scsi","/sys/firmware"],"ReadonlyPaths":["/proc/bus","/proc/fs","/proc/irq","/proc/sys","/proc/sysrq-trigger"]} [root@localhost 1a7a3b5112fd310dc70903df479203a81d7d64f7c19ea0aca8fff8ece10e04a4]# sed -i 's/"RestartPolicy":{"Name":"no"/"RestartPolicy":{"Name":"always"/g' [root@localhost 1a7a3b5112fd310dc70903df479203a81d7d64f7c19ea0aca8fff8ece10e04a4]# more {"Binds":null,"ContainerIDFile":"","LogConfig":{"Type":"json-file","Config":{}},"NetworkMode":"default","PortBindings":{},"RestartPolicy":{"Name":"always","MaximumR etryCount":0},"AutoRemove":false,"VolumeDriver":"","VolumesFrom":null,"CapAdd":null,"CapDrop":null,"Capabilities":null,"Dns":[],"DnsOptions":[],"DnsSearch":[],"Extr aHosts":null,"GroupAdd":null,"IpcMode":"private","Cgroup":"","Links":null,"OomScoreAdj":0,"PidMode":"","Privileged":false,"PublishAllPorts":false,"ReadonlyRootfs":f alse,"SecurityOpt":null,"UTSMode":"","UsernsMode":"","ShmSize":67108864,"Runtime":"runc","ConsoleSize":[0,0],"Isolation":"","CpuShares":0,"Memory":0,"NanoCpus":0,"C groupParent":"","BlkioWeight":0,"BlkioWeightDevice":[],"BlkioDeviceReadBps":null,"BlkioDeviceWriteBps":null,"BlkioDeviceReadIOps":null,"BlkioDeviceWriteIOps":null," CpuPeriod":0,"CpuQuota":0,"CpuRealtimePeriod":0,"CpuRealtimeRuntime":0,"CpusetCpus":"","CpusetMems":"","Devices":[],"DeviceCgroupRules":null,"DeviceRequests":null," KernelMemory":0,"KernelMemoryTCP":0,"MemoryReservation":0,"MemorySwap":0,"MemorySwappiness":null,"OomKillDisable":false,"PidsLimit":null,"Ulimits":null,"CpuCount":0 ,"CpuPercent":0,"IOMaximumIOps":0,"IOMaximumBandwidth":0,"MaskedPaths":["/proc/asound","/proc/acpi","/proc/kcore","/proc/keys","/proc/latency_stats","/proc/timer_li st","/proc/timer_stats","/proc/sched_debug","/proc/scsi","/sys/firmware"],"ReadonlyPaths":["/proc/bus","/proc/fs","/proc/irq","/proc/sys","/proc/sysrq-trigger"]} [root@localhost /]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c5557254c6d9 tomcat " run" 14 minutes ago Up 2 seconds 8080/tcp fervent_goldstine 1a7a3b5112fd tomcat " run" 17 minutes ago Up 2 seconds 8080/tcp friendly_clarke