KillrVideo Docker Common Configurations

This repo provides a composable set of Docker Compose scripts for running KillrVideo in various configurations

Basic Docker-Compose Setup

You need to have Docker and docker-compose installed in order to launch the application. Experience with Docker is recommended but not required.

Here's how to run the default configuration, which uses the Java backend

git clone https://github.com/KillrVideo/killrvideo-docker-common.git 
cd killrvideo-docker-common
docker-compose up -d

It'll take some time to pull the images and launch the application. After that, these web interfaces should be available:

• http://localhost:3000 - KillrVideo Web Interface
• http://localhost:9091 - DataStax Studio

If you use Docker on mac/windows, docker-machine or similar setup, you may need to replace 'localhost' with the IP address of your docker machine.

Customizing the Setup

It is frequently useful for development and deployment purposes to make changes to this common configuration. This repo also provides a set of override Docker Compose files that operate according to the behaviors described at: https://docs.docker.com/compose/extends/.

The basic way to use this configuration is to do the following:

docker-compose up -d -f docker-compose.yaml <override files> 

Alternatively, you can define a .env file that lists the yaml files you wish to use, along with any environment variables needed. For example, the following .env would override the Java backend with the Python backend:

COMPOSE_PROJECT_NAME=killrvideo
COMPOSE_FILE=./docker-compose.yaml:./docker-compose-backend-python.yaml

The override files override various aspects of the default configuration, for example, specifying different images, or different values for environment variables, and so on. These can be used in various combinations

Quick descriptions of the override files:

• docker-compose-backend-external.yaml - adding this file disables the backend services in the compose so you can run the implementation of your choice locally in your IDE.
• docker-compose-backend-nodejs.yaml - adding this file overrides the backend services to the Node.js implementation
• docker-compose-backend-python.yaml - adding this file overrides the backend services to the Python implementation
• docker-compose-dse-external.yaml - adding this file disables the DSE image in the compose (regardless of any additional docker-compose-dse-*.yaml files that may have been specified). If using this make sure to define the KILLRVIDEO_EXTERNAL_IP environment variable
• docker-compose-dse-metrics.yaml - adding this file enables metrics collection on DSE and runs Prometheus (port X) and Grafana (port X)
• docker-compose-dse-secure.yaml - adding this file swaps in DSE configuration files to enable the DSE authentication, authorization and role management modules. If using this compose file, make sure to define the KILLRVIDEO_DSE_USERNAME and KILLRVIDEO_DSE_PASSWORD environment variables and set KILLRVIDEO_CREATE_DSE_USER=true, so that the killrvideo_dse_config container will create the user. You may also choose to override the default administrator account cassandra/cassandra by setting KILLRVIDEO_CREATE_ADMIN_USER=true and providing values for KILLRVIDEO_ADMIN_USERNAME and KILLRVIDEO_ADMIN_PASSWORD. PLEASE NOTE: if you have previously used the docker-compose-dse-volumes.yaml described below, you will want to make sure to delete any existing DSE container and the contents of the dse_data directory, as the security configuration logic in killrvideo-dse-config is designed to be run on a fresh node/cluster.
• docker-compose-dse-volumes.yaml - adding this causes DSE to store its data files in the directory dse-data so that you may keep the data even when recreating the container (note warning above under docker-compose-dse-secure.yaml)
• docker-compose-ops-center.yaml - adding this runs an instance of OpsCenter

To get the effective configuration that results from application of all of your selected config files, use the command docker-compose config.

Deploying to Kubernetes

You can deploy your effective Docker configuration to Kubernetes in two steps:

• First, run the command ./kompose-convert.sh. This will generate resource definitions in the k8s subdirectory
• Then, deploy the configuration by running kubectl apply -f ./k8s

Optionally, you may wish to delete the contents of the k8s directory between runs of kompose-convert.sh