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@@ -185,7 +185,17 @@ Once you are logged in as an admin user, you can visit `/admin/register` on your
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*Please make sure to back up all Mongo, Redis and on-disk data before upgrading.*
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*Please make sure to back up all Mongo, Redis and on-disk data before upgrading.*
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-Stop and remove the currently running ShareLaTeX container:
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+#### Migrations
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+Data stored in Mongodb will be automatically migrated to the latest schemea when upgrading docker releases. **This can make downgrades impossible.** One recommended technique is to test the migration first. This can be done by copying the mongodb database and doing a test run against the copied data.
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+
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+```
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+db.copyDatabase(sharelatex,sharelatex-copy)
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+# start the container up pointing at the new db
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+--env SHARELATEX_MONGO_URL=mongodb://dockerhost/sharelatex-copy
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+```
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+
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+#### Upgrade process
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+To use the new docker container stop and remove the currently running ShareLaTeX container:
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```
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```
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$ docker stop sharelatex
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$ docker stop sharelatex
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Henry Oswald