Development with Docker

Install

apt install docker.io
usermod -aG docker patrick

Tip

Replace patrick with your own Linux user name.

Docker Compose

sudo curl -L https://github.com/docker/compose/releases/download/1.21.2/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
# test
docker-compose --version

Flowable

Docker Compose script for the Flowable Modeler, docker-compose.yml:

Tip

This script run Postgres in a container, so you will need to stop Postgres and Tomcat services running locally on your workstation.

Follow these steps to run docker-compose.yml:

wget https://raw.githubusercontent.com/flowable/flowable-engine/master/docker/modeler-idm-postgres.sh
wget https://raw.githubusercontent.com/flowable/flowable-engine/master/modules/flowable-ui-modeler/flowable-ui-modeler-app/src/main/docker/docker-compose.yml

Edit the first line of modeler-idm-postgres.sh to read:

DOCKER_COMPOSE_FILE="./docker-compose.yml"

Back at your command line:

sudo service postgresql stop
sudo service tomcat8 stop

chmod +x modeler-idm-postgres.sh
./modeler-idm-postgres.sh start
# to check progress
./modeler-idm-postgres.sh info

Browse to

http://localhost:8080/flowable-modeler

Login as admin, test

Postgres

From Don’t install Postgres. Docker pull Postgres

Configure:

sudo -i
service docker start

mkdir ~/repo/docker/postgres/volumes

Run:

docker run --rm --name pg-docker -e POSTGRES_PASSWORD=postgres -d -p 5432:5432 -v $HOME/repo/docker/postgres/volumes:/var/lib/postgresql/data postgres

Test:

# the password is 'postgres'
psql -h localhost -U postgres -d postgres

Tip

See Commands below…

Django

# dev_local.py
DATABASES = {
    "default": {
        "ENGINE": "django.db.backends.postgresql_psycopg2",
        "NAME": "dev_test_invoice",
        "USER": get_env_variable("DATABASE_USER"),
        "PASSWORD": get_env_variable("DATABASE_PASS"),
        "HOST": get_env_variable("DATABASE_HOST"),
        "PORT": "",
    }
}

# .env.fish
set -x DATABASE_HOST "localhost"
set -x DATABASE_PASS "postgres"
set -x DATABASE_USER "postgres"

Commands

Create a database (called temp_test_create_on_docker):

psql -X -U postgres -h localhost -c "CREATE DATABASE temp_test_create_on_docker TEMPLATE=template0 ENCODING='utf-8';"