{"id":7268,"date":"2018-03-14T13:16:08","date_gmt":"2018-03-14T05:16:08","guid":{"rendered":"http:\/\/rmohan.com\/?p=7268"},"modified":"2018-03-14T13:18:39","modified_gmt":"2018-03-14T05:18:39","slug":"start-a-docker-container-on-centos-at-boot-time-as-a-linux-service","status":"publish","type":"post","link":"https:\/\/mohan.sg\/?p=7268","title":{"rendered":"Start a docker container on CentOS at boot time as a linux service"},"content":{"rendered":"
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Note: If docker daemon does not start at boot, you might want to enable the docker service<\/p>\n

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1<\/div>\n<\/td>\n
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systemctl <\/code>enable<\/code>docker.service<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

Here are the steps.<\/p>\n

Create the file \/etc\/systemd\/system\/docker_demo_container.service<\/p>\n

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[Unit]<\/code><\/div>\n
Wants=docker.service<\/code><\/div>\n
After=docker.service<\/code><\/div>\n
<\/div>\n
[Service]<\/code><\/div>\n
RemainAfterExit=<\/code>yes<\/code><\/div>\n
ExecStart=<\/code>\/usr\/bin\/docker<\/code>start my_container_name<\/code><\/div>\n
ExecStop=<\/code>\/usr\/bin\/docker<\/code>stop my_container_name<\/code><\/div>\n
<\/div>\n
[Install]<\/code><\/div>\n
WantedBy=multi-user.target<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

Now I can start the service<\/p>\n

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systemctl start docker_demo_container<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

And I can enable the service so it is executed at boot<\/p>\n

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1<\/div>\n<\/td>\n
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systemctl <\/code>enable<\/code>docker_demo_container<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

That\u2019s it, my container is started at boot.<\/p>\n<\/div>\n

 <\/p>\n\n\n\n
<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
[Unit]<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
Description=MariaDB container<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
Requires=docker.service<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
After=docker.service<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
[Service]<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
User=php<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
Restart=always<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
RestartSec=10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
# ExecStartPre=-\/usr\/bin\/docker kill database<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
# ExecStartPre=-\/usr\/bin\/docker rm database<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
ExecStart=\/usr\/bin\/docker start -a database<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
ExecStop=\/usr\/bin\/docker stop -t 2 database<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
[Install]<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

WantedBy=multi-user.target<\/p>\n

 <\/p>\n

 <\/p>\n

#!\/bin\/bash\r\nexec \"$@\"\r\n<\/code><\/pre>\n
and I have the following in my Dockerfile:<\/p>\n
ADD entrypoint.sh \/entrypoint.sh\r\nRUN chmod +x \/entrypoint.sh\r\nENTRYPOINT [\"\/entrypoint.sh\"]\r\nCMD [\"date\"]\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\n
Note: If docker daemon does not start at boot, you might want to enable the docker service<\/p>\n
 1 systemctl enabledocker.service <\/p>\n
Here are the steps.<\/p>\n
Create the file \/etc\/systemd\/system\/docker_demo_container.service<\/p>\n
 1 2 3 4 5 6 7 8 9 10 11 [Unit] Wants=docker.service After=docker.service [Service] RemainAfterExit=yes ExecStart=\/usr\/bin\/dockerstart my_container_name ExecStop=\/usr\/bin\/dockerstop my_container_name [Install] WantedBy=multi-user.target <\/p>\n
Now I can start […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[82],"tags":[],"_links":{"self":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/7268"}],"collection":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7268"}],"version-history":[{"count":3,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/7268\/revisions"}],"predecessor-version":[{"id":7271,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/7268\/revisions\/7271"}],"wp:attachment":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}