Docker CLI notes
Notes on Docker CLI
Creating a container
docker run -d -p 127.0.0.1:5432:5432 -e POSTGRES_PASSWORD=testPassword --name postgres-test postgres
| Parameter | Description |
|---|---|
-d |
Deamonize (run in background) |
-p 127.0.0.1:5432:5432 |
Forward port to container local-port:container-port or local-ip:local-port:container-port |
-e POSTGRES_PASSWORD=testPassword |
Set an environment variable |
--name postgres-test |
Name the container |
postgres |
The image to create the container from, always the last argument |
Remove a container
Multiple container names can be specified separated by spaces
docker rm --force postgres-test another-container
Pipe input into container
| Parameter | Description |
|---|---|
-i |
Makes exec accept stdin (-i for interactive) |
--user postgres |
Specific to the postgres container, but is required to connect to the database |
postgres-test |
The container name |
psql |
The cli program to execute inside the container |
Powershell:
@"
CREATE TABLE test (
id SERIAL PRIMARY KEY
,name TEXT NOT NULL
);
"@ | docker exec -i --user postgres postgres-test psql
Bash:
docker exec -i --user postgres postgres-test psql <<-EOSQL
CREATE TABLE test (
id SERIAL PRIMARY KEY
,name TEXT NOT NULL
);
EOSQL