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Fix "Migrating to a new server" flow due to dynamic user/group creation

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This commit is contained in:
Slavi Pantaleev 2020-05-06 09:55:40 +03:00
parent 6032affc20
commit ccc7aaf0ce
2 changed files with 5 additions and 2 deletions
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6
docs/maintenance-migrating.md
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# Migrating to new server
1. Prepare by lowering DNS TTL for your domains (`matrix.DOMAIN`, etc.), so that DNS record changes (step 4 below) would happen faster, leading ot less downtime
2. Stop all services on the old server and make sure they won't be starting again. Execute this on the old server: `systemctl disable --now matrix*`
2. Stop all services on the old server and make sure they won't be starting again. Execute this on the old server: `systemctl disable --now matrix*`
3. Copy directory `/matrix` from the old server to the new server. Make sure to preserve ownership and permissions (use `cp -p` or `rsync -ar`)!
4. Make sure your DNS records are adjusted to point to the new server's IP address
5. Remove old server from the `inventory/hosts` file and add new server.
6. Run `ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start`. This will create the matrix user and group and start all services on the new server
6. Run `ansible-playbook -i inventory/hosts setup.yml --tags=setup-system-user`. This will create the `matrix` user and group on the new server
7. Because the `matrix` user and group are created dynamically on each server, the user/group id may differ between the old and new server. We suggest that you adjust ownership of `/matrix` files manually by running this on the new server: `chown -R matrix:matrix /matrix`.
8. Run `ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start` to finish the installation and start all services

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roles/matrix-base/tasks/main.yml
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when: run_setup|bool
tags:
- always
- setup-system-user
- import_tasks: "{{ role_path }}/tasks/setup_matrix_base.yml"
when: run_setup|bool