CockroachDB Docker Compose Script with SQL commands - bash

Question

I would like to accomplish 2 things:
1) Start a CockroachDB cluster with docker compose (works)
2) Execute SQL commands on the cluster (I want to create a Database)
My Docker File Looks like this:
version: '3'
services:
roach-ui:
image: cockroachdb/cockroach
command: start --insecure
expose:
- "8080"
- "26257"
ports:
- "26257:26257"
- "8080:8080"
networks:
- roachnet
db-1:
image: cockroachdb/cockroach
command: start --insecure --join=roach-ui
networks:
- roachnet
volumes:
- ./data/db-1:/cockroach/cockroach-data
networks:
roachnet:
When I run docker-compose up, everything works as expected.
While using google, I found that the solution is to run a bash script, I created the following setup.sh:
sql --insecure --execute="CREATE TABLE testDB"
I tried to run the script via command: bash -c "setup.sh", but Docker says that it can not run the command "bash".
Any Suggestions ? Thanks :)
EDIT:
I am running docker-compose up, the error I am getting:
roach-ui_1 | Failed running "bash"
heimdall_roach-ui_1 exited with code 1

Answer 1

So what you need is an extra init service to initialize the DB. This service will run a bash script to execute commands that will init the DB
setup_db.sh
#!/bin/bash
echo Wait for servers to be up
sleep 10
HOSTPARAMS="--host db-1 --insecure"
SQL="/cockroach/cockroach.sh sql $HOSTPARAMS"
$SQL -e "CREATE DATABASE tarun;"
$SQL -d tarun -e "CREATE TABLE articles(name VARCHAR);"
And then you add this file to execute in the docker-compose.yml
docker-compose.yaml
version: '3'
services:
roach-ui:
image: cockroachdb/cockroach
command: start --insecure
expose:
- "8080"
- "26257"
ports:
- "26257:26257"
- "8080:8080"
networks:
- roachnet
db-1:
image: cockroachdb/cockroach
command: start --insecure --join=roach-ui
networks:
- roachnet
volumes:
- ./data/db-1:/cockroach/cockroach-data
db-init:
image: cockroachdb/cockroach
networks:
- roachnet
volumes:
- ./setup_db.sh:/setup_db.sh
entrypoint: "/bin/bash"
command: /setup_db.sh
networks:
roachnet: