Strapi, postgres, docker: What is the right way to export a local database and export it on a remote server? - postgresql

Question

The problem
I have a project based on Strapi's CMS and Postgres database wrapped in docker containers which I start toghether from a single docker-compose.yml script. I have developed the project locally and want to move it on a remote server keeping the current state of all data I inserted by the CMS. In other words my local Postgres database is not empty and contains tables and information generated by the CMS. I have copied all *.js files dynamically generated from the CMS to the remote server along with the public/ folder, but have troubles to export/import an exact copy of the database. What is the right way to copy the database from the docker containers? I prefer to export it in a single or multiple *.sql files that can be imported from the /usr/local/bin/docker-entrypoint.sh folder.
What have I tried so far?
Using Adminer I have exported it as a single *.sql file. It imports successfully just by placing the exported file in Postgres container's folder /usr/local/bin/docker-entrypoint.sh. So all data I have inserted into the CMS on my local database is in the remote database. At first glance everything looks alright, until I try to update some CMS collection from the admin panel. Then in the user interface come up strange errors in the same time the Postgres and Strapi's log says this:
postgres | 2023-02-17 11:44:39.438 UTC [40] ERROR: duplicate key value violates unique constraint "about_pages_components_pkey"
postgres | 2023-02-17 11:44:39.438 UTC [40] DETAIL: Key (id)=(35) already exists.
postgres | 2023-02-17 11:44:39.438 UTC [40] STATEMENT: insert into "about_pages_components" ("component_id", "component_type", "entity_id", "field", "order") values ($1, $2, $3, $4, $5) returning "id"
api | [2023-02-17 11:44:39.440] error: insert into "about_pages_components" ("component_id", "component_type", "entity_id", "field", "order") values ($1, $2, $3, $4, $5) returning "id" - duplicate key value violates unique constraint "about_pages_components_pkey"
api | error: insert into "about_pages_components" ("component_id", "component_type", "entity_id", "field", "order") values ($1, $2, $3, $4, $5) returning "id" - duplicate key value violates unique constraint "about_pages_components_pkey"
api | at Parser.parseErrorMessage (/opt/app/node_modules/pg-protocol/dist/parser.js:287:98)
api | at Parser.handlePacket (/opt/app/node_modules/pg-protocol/dist/parser.js:126:29)
api | at Parser.parse (/opt/app/node_modules/pg-protocol/dist/parser.js:39:38)
api | at Socket.<anonymous> (/opt/app/node_modules/pg-protocol/dist/index.js:11:42)
api | at Socket.emit (events.js:400:28)
api | at Socket.emit (domain.js:475:12)
api | at addChunk (internal/streams/readable.js:293:12)
api | at readableAddChunk (internal/streams/readable.js:267:9)
api | at Socket.Readable.push (internal/streams/readable.js:206:10)
api | at TCP.onStreamRead (internal/stream_base_commons.js:188:23)
ngi
Adminer's export settings:
Using docker exec -t postgres pg_dump -c -U postgres > init.sql I get the following error log:
postgres | /usr/local/bin/docker-entrypoint.sh: running /docker-entrypoint-initdb.d/init.sql
postgres | SET
postgres | SET
postgres | SET
postgres | SET
postgres | SET
postgres | set_config
postgres | ------------
postgres |
postgres | (1 row)
postgres |
postgres | SET
postgres | SET
postgres | SET
postgres | SET
postgres | 2023-02-17 11:50:46.045 UTC [50] ERROR: relation "public.up_users" does not exist
postgres | 2023-02-17 11:50:46.045 UTC [50] STATEMENT: ALTER TABLE ONLY public.up_users DROP CONSTRAINT up_users_updated_by_id_fk;
postgres | psql:/docker-entrypoint-initdb.d/init.sql:19: ERROR: relation "public.up_users" does not exist
postgres | 2023-02-17 11:50:47.358 UTC [1] LOG: starting PostgreSQL 14.3 on x86_64-pc-linux-musl, compiled by gcc (Alpine 11.2.1_git20220219) 11.2.1 20220219, 64-bit
postgres | 2023-02-17 11:50:47.358 UTC [1] LOG: listening on IPv4 address "0.0.0.0", port 5432
postgres | 2023-02-17 11:50:47.358 UTC [1] LOG: listening on IPv6 address "::", port 5432
postgres | 2023-02-17 11:50:47.375 UTC [1] LOG: listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
postgres | 2023-02-17 11:50:47.393 UTC [24] LOG: database system was interrupted; last known up at 2023-02-17 11:50:45 UTC
postgres | 2023-02-17 11:50:51.704 UTC [24] LOG: database system was not properly shut down; automatic recovery in progress
postgres | 2023-02-17 11:50:51.735 UTC [24] LOG: invalid record length at 0/16FCE28: wanted 24, got 0
postgres | 2023-02-17 11:50:51.735 UTC [24] LOG: redo is not required
postgres | 2023-02-17 11:50:52.395 UTC [1] LOG: database system is ready to accept connections
Using docker exec -t postgres pg_dumpall -c -U postgres > init.sql I get the following error log:
postgres | /usr/local/bin/docker-entrypoint.sh: running /docker-entrypoint-initdb.d/init.sql
postgres | SET
postgres | SET
postgres | SET
postgres | 2023-02-17 12:05:48.154 UTC [49] ERROR: current user cannot be dropped
postgres | 2023-02-17 12:05:48.154 UTC [49] STATEMENT: DROP ROLE postgres;
postgres | psql:/docker-entrypoint-initdb.d/init.sql:22: ERROR: current user cannot be dropped
postgres | 2023-02-17 12:05:49.532 UTC [1] LOG: starting PostgreSQL 14.3 on x86_64-pc-linux-musl, compiled by gcc (Alpine 11.2.1_git20220219) 11.2.1 20220219, 64-bit
postgres | 2023-02-17 12:05:49.532 UTC [1] LOG: listening on IPv4 address "0.0.0.0", port 5432
postgres | 2023-02-17 12:05:49.533 UTC [1] LOG: listening on IPv6 address "::", port 5432
postgres | 2023-02-17 12:05:49.554 UTC [1] LOG: listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
postgres | 2023-02-17 12:05:49.581 UTC [22] LOG: database system was interrupted; last known up at 2023-02-17 12:05:48 UTC
Strapi version and dependencies:
"dependencies": {
"#strapi/plugin-i18n": "4.2.3",
"#strapi/plugin-users-permissions": "4.2.3",
"#strapi/strapi": "4.2.3",
"better-sqlite3": "7.4.6",
"pg": "^8.8.0"
},
Postgres docker image postgres:14.3-alpine
Adminer docker image adminer:4.8.1