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8a7b3d5bd0
Changes to the original are: - it tells people to stop and disable services, so that: - services won't be running while you are copying files - services won't accidentally start again later - it does the file-copying in 1 step - it does copying before running `--tags=setup-all`, so that existing files (SSL certificates, etc.) can be reused. Otherwise, the playbook starts from a blank slate, retrieves them anew, generates new signing keys anew, etc. Only to have those replaced by your own old backup later. - it mentions DNS changes - combines `--tags=setup-all,start` into a single step, thanks to the files being already copied
9 lines
802 B
Markdown
9 lines
802 B
Markdown
# Migrating to new server
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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
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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*`
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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`)!
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4. Make sure your DNS records are adjusted to point to the new server's IP address
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5. Remove old server from the `inventory/hosts` file and add new server.
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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
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