Docker cannot modify the gitlab port number

Docker cannot be modified once the container is generated

Solution:

1. Save the container as an image
2. Back up GitLab and rebuild the container

Plan 2 is adopted this time.

To start backup

1. Into the container

docker exec -it gitlab bash
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2. Generate the backup

gitlab-rake gitlab:backup:create
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3. Exit the container and copy the backup

Docker cp gitlab: / var/opt/gitlab/backups / 1625645210 _2021_07_07_13. 11.3 _gitlab_backup. Tar/User/MACCopy the code

Look at the container generation instructions

1. Download runlike

pip install runlike
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2. See instructions

runlike -p gitlab
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3. After copying, modify the instruction port

docker run \ --name=gitlab \ ...... .Copy the code

Regenerate the container

1. Back up the container and delete it

2. Use the modified command

docker run \ --name=gitlab \ ...... .Copy the code

Restore the backup

1. Into the container

docker exec -it gitlab bash

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2. Stop related data connection services

gitlab-ctl stop unicorn

gitlab-ctl stop sidekiq

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3. Modify the permission. If the server is restored from the local server, the permission is not changed

Chmod 777 / var/opt/gitlab/backups / 1625645210 _2021_07_07_13. 11.3 _gitlab_backup. TarCopy the code

4. Restore by number

Gitlab - rake gitlab: backup, restore backup = 1625645210 _2021_07_07_13. 11.3Copy the code

5. Type Yes twice as prompted and press Enter

6. Restart the Docker, and the browser accesses the address of the new server to view the migration

conclusion

In fact, it is safer to use scheme 1 directly, because scheme 2 May fail.