Summary. . This is the second video in this Docker series. And changes in the database within the host directory or within the container’s directory can be reflected in both directory locations simultaneously? . docker exec: This runs a command inside a Docker container.-u postgres: We want to run the command as the postgres user because the docker exec command defaults to using the root user and the root user does not have access to the database. So I start it with docker-compose up and both services: postgres and redis started and I was able to access it and create database with data, I was so happy when I run command docker-compose down and once again docker-compose up and saw that my database still exists without recreating!! Yes! 1_init.sql creates the DB table, it has to have the same column names as in CSV file. and finally, we can now check the database using psql or Azure Data Studio. . docker run — env PGDATA=postgres -p 5433:5432 -i ps_image_with_data This command will start postgres container at port 5433 where data directory is /postgres. 2_copy.sql is responsible for copying data from the CSV to postgres. ! docker-compose exec: execute a command inside a running container; db: name of the service (see configuration in docker-compose.yml); psql: terminal command to run, see psql-U postgres: user name is postgres-d task_management: connect to the database called task_management; Alternatively, you can use a GUI tool like pgAdmin or DBeaver.. Recap⌗. This was a basic introduction of how to use docker for running PostgreSQL database. The ENV PGDATA=/data environment variable instructs the PostgreSQL image to use /data instead of /var/lib/postgresql/data as its data directory. I was looking for something short about getting started with Docker Compose and I found this video: Docker Compose in 12 Minutes (Mar 14, 2017) - Learn how to use Docker Compose to run multi-container applications easily. docker run -p 5432:5432 –name yourContainerName -e POSTGRES_PASSWORD=yourPassword -d postgres. One called API and one called TESTING My current docker- COPY table_name FROM '/data/datasource.csv' DELIMITER ',' CSV HEADER; Explanation. Jul 22 16:22:44 ubuntu-512mb-nyc1-01 systemd[1]: Stopped PostgreSQL RDBMS. proget-postgres: This is the name of the Docker container running PostgreSQL. Now that the server is shut down, we’ll copy the existing database directory to the new location with rsync.Using the -a flag preserves the permissions and other directory properties while -v provides verbose output so you can follow the progress.. If we want to persist data generated by the Postgres instance running inside a container beyond the container’s lifecycle, we need to map a local mount point as a data volume to an appropriate path inside the container. THAT’S IT. Dockerfile uses postgres image and copies all *.sql files to /docker-entrypoint-initdb.d/. Using Postgres with Docker on Windows Mar 23, 2019 Developer Postgres Docker Backend. so that the database can be located on local host and inside the PostgreSQL container. But I need 2 DB's ... Is there an easy way to add 2 DB's using the same username / password / host? Here are some my docker-compose file: version: '2' services: . On Windows 10 Pro is always failed while docker-compose up, otherwise on mac is work perfectly. 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