Path to file is not forund of postgres script `COPY <table_name>(<columns>) FROM '<path>>' ...` within docker container using linux distribution - linux

Question

This issue has to do with the fact that the file exists on the backend container but not the postgres container. How could I transfer the file between containers automatically?
I am currently trying to execute the following script:
COPY climates(
station_id,
date,
element,
data_value,
m_flag,
q_flag,
s_flag,
obs_time
)
FROM '/usr/api/2017.csv`
DELIMITER ','
CSV HEADER;
within a docker container running a sequelize backend connecting to a postgres:14.1-alpine container.
The following error is returned:
db_1 | 2022-08-30 04:23:58.358 UTC [29] ERROR: could not open file "/usr/api/2017.csv" for reading: No such file or directory
db_1 | 2022-08-30 04:23:58.358 UTC [29] HINT: COPY FROM instructs the PostgreSQL server process to read a file. You may want a client-side facility such as psql's \copy.
db_1 | 2022-08-30 04:23:58.358 UTC [29] STATEMENT: COPY climates(
db_1 | station_id,
db_1 | date,
db_1 | element,
db_1 | data_value,
db_1 | m_flag,
db_1 | q_flag,
db_1 | s_flag,
db_1 | obs_time
db_1 | )
db_1 | FROM '/usr/api/2017.csv'
db_1 | DELIMITER ','
db_1 | CSV HEADER;
ebapi | Unable to connect to the database: MigrationError: Migration 20220829_02_populate_table.js (up) failed: Original error: could not open file "/usr/api/2017.csv" for reading: No such file or directory
ebapi | at /usr/api/node_modules/umzug/lib/umzug.js:151:27
ebapi | at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
ebapi | at async Umzug.runCommand (/usr/api/node_modules/umzug/lib/umzug.js:107:20)
ebapi | ... 2 lines matching cause stack trace ...
ebapi | at async start (/usr/api/index.js:14:3) {
ebapi | cause: Error
ebapi | at Query.run (/usr/api/node_modules/sequelize/lib/dialects/postgres/query.js:50:25)
ebapi | at /usr/api/node_modules/sequelize/lib/sequelize.js:311:28
ebapi | at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
ebapi | at async Object.up (/usr/api/migrations/20220829_02_populate_table.js:10:5)
ebapi | at async /usr/api/node_modules/umzug/lib/umzug.js:148:21
ebapi | at async Umzug.runCommand (/usr/api/node_modules/umzug/lib/umzug.js:107:20)
ebapi | at async runMigrations (/usr/api/util/db.js:52:22)
ebapi | at async connectToDatabase (/usr/api/util/db.js:32:5)
ebapi | at async start (/usr/api/index.js:14:3) {
ebapi | name: 'SequelizeDatabaseError',
...
Here is my docker-compose.yml
# set up a postgres database version: "3.8" services: db:
image: postgres:14.1-alpine
restart: always
environment:
- POSTGRES_USER=postgres
- POSTGRES_PASSWORD=postgres
ports:
- "5432:5432"
volumes:
- db:/var/lib/postgresql/data
- ./db/init.sql:/docker-entrypoint-initdb.d/create_tables.sql api:
container_name: ebapi
build:
context: ./energybot
depends_on:
- db
ports:
- 3001:3001
environment:
DATABASE_URL: postgres://postgres:postgres#db:5432/postgres
DB_HOST: db
DB_PORT: 5432
DB_USER: postgres
DB_PASSWORD: postgres
DB_NAME: postgres
links:
- db
volumes:
- "./energybot:/usr/api"
volumes: db:
driver: local