How to backup a AWX postgres database in docker.

postgres.docker.backup.txt

To backup:
docker exec -u <your_postgres_user> <postgres_container_name> pg_dump -Fc <database_name_here> > db.dump

To drop db (Don't do it on production, for test purpose only!!!):
docker exec -u <your_postgres_user> <postgres_container_name> psql -c 'DROP DATABASE <your_db_name>'

To restore:
docker exec -i -u <your_postgres_user> <postgres_container_name> pg_restore -C -d postgres < db.dump

working example for awx postgres database
backup:
docker exec -u postgres postgres pg_dump -Fc awx > `date +%m.%d.%y_%H.%M.%S`_awx_db.dump

RESTORE:
docker stop awx_task
docker stop awx_web
docker stop memcached

rename current db:
docker exec -u postgres postgres psql postgres awx -c 'ALTER DATABASE "awx" RENAME TO "awx_01_03_18"'

restore AWX db:
docker exec -i -u postgres postgres pg_restore -C -d postgres < 01.03.18_03.17.33_awx_db.dump

docker start memcached
docker start awx_web
docker start awx_task

if you are happy with everything you can drop your other database:
docker exec -u postgres postgres psql -c 'DROP DATABASE awx_01_03_18'

The instructions here don't seem to work now, dumped it with:

# docker exec -u awx awx_postgres pg_dump -Fc awx > /var/lib/awx/projects/awx-db_`date +%y.%m.%d_%H.%M.%S`.dump

Restore it with:

root@AWX-2-panel:~# docker stop awx_task
awx_task
root@AWX-2-panel:~# docker stop awx_web
awx_web

root@AWX-2-panel:~# docker exec -u postgres awx_postgres psql postgres awx -c 'ALTER DATABASE "awx" RENAME TO "awx-db_21.01.04_13.02.09"'

root@AWX-2-panel:~# docker exec awx_postgres psql -U awx -l
                                     List of databases
           Name           | Owner | Encoding |  Collate   |   Ctype    | Access privileges 
--------------------------+-------+----------+------------+------------+-------------------
 awx-db_21.01.04_13.02.09 | awx   | UTF8     | en_US.utf8 | en_US.utf8 | 
 postgres                 | awx   | UTF8     | en_US.utf8 | en_US.utf8 | 
 template0                | awx   | UTF8     | en_US.utf8 | en_US.utf8 | =c/awx           +
                          |       |          |            |            | awx=CTc/awx
 template1                | awx   | UTF8     | en_US.utf8 | en_US.utf8 | =c/awx           +
                          |       |          |            |            | awx=CTc/awx
(4 rows)

root@AWX-2-panel:~# docker exec -d awx_postgres mkdir /pgrestore
root@AWX-2-panel:~# docker cp /root/awx-db_21.01.04_13.02.09.dump awx_postgres:pgrestore

root@AWX-2-panel:~# docker exec awx_postgres pg_restore -U awx -C -c /pgrestore/awx-db_21.01.04_13.02.09.dump
pg_restore: [archiver] input file does not appear to be a valid archive (too short?)

Trying to move the application from one Debian 10 machine to another Debian 10 machine. Upgrading from 15.01 to 16.0.0.

After installing AWX with the same credentials, I cleared out /var/lib/awx/projects/ and updated it's contents with that of the previous server, then tried to perform this DB import.

These seemed to work:

# docker exec -t awx_postgres pg_dump -U awx awx > /var/lib/awx/projects/awx-dump.sql

# docker exec -t awx_postgres psql -U awx awx < /var/lib/awx/projects/awx-dump.sql

or

root@AWX-3-panel:~# docker stop awx_task

awx_task

root@AWX-3-panel:~# docker stop awx_web

awx_web

root@AWX-3-panel:~# cp /var/lib/awx/projects/awx-dump.sql /root/.awx/pgdocker/10/data/

root@AWX-3-panel:~# docker exec -it awx_postgres /bin/bash

root@ce48e2584014:/#

root@ce48e2584014:/# dropdb -U awx awx

root@ce48e2584014:/# createdb -U awx awx

root@ce48e2584014:/# psql -U awx awx < /var/lib/postgresql/data/awx-dump.sql

root@ce48e2584014:/# exit

exit

root@AWX-3-panel:~# docker start awx_task

awx_task

root@AWX-3-panel:~# docker start awx_web

awx_web