From e31f74c3ad354f4401e8ce0b0f65de8d1d8ebe41 Mon Sep 17 00:00:00 2001 From: Dessalines Date: Thu, 30 Jul 2020 11:51:28 -0400 Subject: [PATCH] Add domain name change instructions to docs. (#1044) * Add domain name change instructions to docs. * Changing docker execs to docker-compose execs --- docs/src/administration_backup_and_restore.md | 43 ++++++++++++++++++- 1 file changed, 41 insertions(+), 2 deletions(-) diff --git a/docs/src/administration_backup_and_restore.md b/docs/src/administration_backup_and_restore.md index fe97cf88..633c687f 100644 --- a/docs/src/administration_backup_and_restore.md +++ b/docs/src/administration_backup_and_restore.md @@ -9,14 +9,14 @@ When using docker or ansible, there should be a `volumes` folder, which contains To incrementally backup the DB to an `.sql` file, you can run: ```bash -docker exec -t FOLDERNAME_postgres_1 pg_dumpall -c -U lemmy > lemmy_dump_`date +%Y-%m-%d"_"%H_%M_%S`.sql +docker-compose exec postgres pg_dumpall -c -U lemmy > lemmy_dump_`date +%Y-%m-%d"_"%H_%M_%S`.sql ``` ### A Sample backup script ```bash #!/bin/sh # DB Backup -ssh MY_USER@MY_IP "docker exec -t FOLDERNAME_postgres_1 pg_dumpall -c -U lemmy" > ~/BACKUP_LOCATION/INSTANCE_NAME_dump_`date +%Y-%m-%d"_"%H_%M_%S`.sql +ssh MY_USER@MY_IP "docker-compose exec postgres pg_dumpall -c -U lemmy" > ~/BACKUP_LOCATION/INSTANCE_NAME_dump_`date +%Y-%m-%d"_"%H_%M_%S`.sql # Volumes folder Backup rsync -avP -zz --rsync-path="sudo rsync" MY_USER@MY_IP:/LEMMY_LOCATION/volumes ~/BACKUP_LOCATION/FOLDERNAME @@ -37,6 +37,45 @@ cat db_dump.sql | docker exec -i FOLDERNAME_postgres_1 psql -U lemmy # restore docker exec -i FOLDERNAME_postgres_1 psql -U lemmy -c "alter user lemmy with password 'bleh'" ``` +### Changing your domain name + +If you haven't federated yet, you can change your domain name in the DB. **Warning: do not do this after you've federated, or it will break federation.** + +Get into `psql` for your docker: + +`docker-compose exec postgres psql -U lemmy` + +``` +-- Post +update post set ap_id = replace (ap_id, 'old_domain', 'new_domain'); +update post set url = replace (url, 'old_domain', 'new_domain'); +update post set body = replace (body, 'old_domain', 'new_domain'); +update post set thumbnail_url = replace (thumbnail_url, 'old_domain', 'new_domain'); + +delete from post_aggregates_fast; +insert into post_aggregates_fast select * from post_aggregates_view; + +-- Comments +update comment set ap_id = replace (ap_id, 'old_domain', 'new_domain'); +update comment set content = replace (content, 'old_domain', 'new_domain'); + +delete from comment_aggregates_fast; +insert into comment_aggregates_fast select * from comment_aggregates_view; + +-- User +update user_ set actor_id = replace (actor_id, 'old_domain', 'new_domain'); +update user_ set avatar = replace (avatar, 'old_domain', 'new_domain'); + +delete from user_fast; +insert into user_fast select * from user_view; + +-- Community +update community set actor_id = replace (actor_id, 'old_domain', 'new_domain'); + +delete from community_aggregates_fast; +insert into community_aggregates_fast select * from community_aggregates_view; +``` + ## More resources - https://stackoverflow.com/questions/24718706/backup-restore-a-dockerized-postgresql-database -- 2.44.1