???? ????????? ????????? ?????

Docker ?? Restart Policy ??????? ???? ?????? ????????????? ?????? ???????????????? ???? ????, ???? ?????????????????? ???? ????? ?? ????? ?????????????? ???? ????? ??? ???????????????? ??????? ???? ?????? ????? ???? ??? ???????? ?????? ????? ?????? Docker ?? ???????? ????? Restart Policy ????? ?????? ????

Restart Policy ?? ??? ????

Docker ?? restart policies ????? ???? ??? ???? ????? ??????????? ??? ??????? ???? ???:

?????? ????? ??? ???? ???? ????? ??? ???? ????? ? YAML ???? ??????? ??? declaratively ??????? ???? ????? Docker Compose, Docker Swarm, ?? Kubernetes ?? ????

Docker ?? ????? ?????? Restart Policy ????

1. always
2. unless-stopped
3. on-failure

???? ???? ????? ????? ????? ???????? ???? ????

?. always Restart Policy

always Restart Policy ??? ???? ??????????? ?????? ?????? ???? ???? ???? ???? ???? ???? ??? ???? ??? ???? ?????, ???? ??????? ??? ?? ????? ??????????? ??? ??????

????? ???????? ????? ???? ???? ????????? ?????? ???? ???? --restart always ????? ????? ??? ????

mycontainer ????? ???? ???? ????????? ???? ???

alpine ???? ??????? ??? ???? ???? sh ??? ??????

--restart always ?????? ??????? ??? ???? ?????, ?????? ??? ???? ??? ?? ???

??????????? ????? ?????? ????? ps -elf ??? ???? ?????? ?? ??? PID 1 ???? ?????? ????? exit ?????? ????? ??????????? ???? ?????

??????????? ???? ????? ??? docker ps ????? ??????????? ?????? ??????

?????? ?? ??????????? ???? ?????? ?? Docker ??? ???? ???? ?????? ??? docker inspect ????? ??? ??? ???, RestartCount ???? ????? ?????? ????? ??? ??????? ???? ???????

docker inspect mycontainer --format '{{.RestartCount}}'

?. unless-stopped Restart Policy

unless-stopped ??????? always ?? ??? ??? ???, ??? ???????? ?? ??? Docker daemon ????????? ??? ????????? ?????? ????? ????????????? ???? ???, ?????? ?????? ??????? ???? ??? ??? ?????? ???? ???? ???

???? ???? ????????? ??????, ???? always ??? ?????? unless-stopped ????? ?????

???? ??????????? ?????? ????? docker ps ???? ??????????? ?????? ??? ???? ????? ???? ?????????? ?????? ???? docker stop ????? ????? ???? ???? ???? ??? ???? ????????? ???? ?????

always-example ??????????? ??????? ???? ??????

unless-stopped-example ??????????? ???? ???????? ???? ????

?. on-failure Restart Policy:

Docker ?? on-failure ????? ???? ??????? ????? ?? ????????? ????????? ?????? ????? ???? ??? ??????? ???? ???? on-failure ??????? ????????? ???? ?????? ???? ???? ??? ???:

• ??? ??????????? non-zero exit code ?? ???? ???, ????? ??? ???????????????? ???? ???? ????
• ??? Docker daemon ????????? ???? ??????????? ??????? ???? ???, ????? ??????? ??????????? ???? ???????? ???????

?? ????? ???? ??????? ????? ???? ????? ?????????????? ???? ??????? ?????? ?? self-healing ?????? ?????? ??? ???? ??? ??? ??????????? ????????????? ???? ??? (???? exit code 0 ?????), ????? ??? ??????? ???? ??? ???

??????? ? ??? ?????? ???? ???? ????? ??????? ???? ??????? ???? ????? ???? ??????? ????