backend-service-pattern: A Python repository from Hack Oregon

Hack Oregon Exemplar Backend Service

NOTE: this is based on the Homelessness team's backend repo, and as such still includes many hardcoded references to "homeless" and/or "homelessness". You will want to update all such app-specific references when implementing this pattern for your project's application.

Purpose

Demonstrates CI/CD for HackOregon Django service

Dependencies

Docker or Docker toolkit
Travis-CI
Cluster deployment keys - Contact the DevOps team
ECR Password - Contact the DevOps Team
ECS Service Name - See Section 5

How to build

1. Create Your Environment file

Create env.sh in the project with the following contents:

#! /bin/bash
# Setup Project Specfics - Make sure env.sh is in the .gitignore and .dockerignore
export DOCKER_IMAGE= #see section 5 for conventions
export PROJ_SETTINGS_DIR= #see section 5 for conventions
export DEPLOY_TARGET=dev # it's always dev on your local machine
echo "##############################"
echo  Your Local Project Environement
echo "##############################"
echo DOCKER_IMAGE $DOCKER_IMAGE
echo PROJ_SETTINGS_DIR $PROJ_SETTINGS_DIR
echo DEPLOY_TARGET $DEPLOY_TARGET

2. Setup your local environment

Run source env.sh to setup your environment

3. Build & Test the container

Run ./bin/build-test-proj -l to build your container locally

Note: For this to work correctly you will need to get your DBA to run the following SQL as the postgres user:

GRANT CONNECT ON database postgres TO <your_db_user>;
GRANT USAGE ON SCHEMA public to <your_db_user>;
GRANT SELECT ON ALL TABLES IN SCHEMA public TO <your_db_user>;

4. Start the project

Make sure you've got a local copy of your projects's project_config.py
Run ./bin/start-proj -l to view your service's swaggerized API

5. Setup your project in travis

Set up the following environment variables

 ECS_SERVICE_NAME       #Your service name as defined on the ECS Cluster. Valid values for the integration cluster are:
                        # - civiclab            "hacko-integration-CivicLabService-SHCQWODY5CF4-Service-5R2TN149GD71"
                        # - budget              "hacko-integration-BudgetService-16MVULLFXXIDZ-Service-1BKKDDHBU8RU4"
                        # - emergency response  "hacko-integration-EmerreponseService-1LC4181KR6KN5-Service-1WR6VWC6KKIEP"
                        # - homelessness        "hacko-integration-HomelessService-1MT93S2GQTJZ4-Service-15OXS2BV07GN0"
                        # - housing             "hacko-integration-HousingService-1LLLKFJR36AJ5-Service-15AO7849OUCYV"
                        # - transportation      "hacko-integration-transportService-67KME5SFWBJO-Service-12UZIOOA2FNIK"
                        #
 ECS_CLUSTER            # Use "hacko-integration"
                        #
 DOCKER_REPO            # Use "845828040396.dkr.ecr.us-west-2.amazonaws.com"
                        #
 DOCKER_IMAGE           # The name of your service. Valid values are:
                        # - civiclab            "civic-lab-service"
                        # - budget              "budget-service"
                        # - emergency response  "emergency-service"
                        # - homelessness        "homeless-service"
                        # - housing             "housing-service"
                        # - transportation      "transport-service"
                        #
                        #
 DEPLOY_TARGET          # What environment you are deploying to. Valid values are:
                        # - For travis integration deploys: "travis"
                        #
 PROJ_SETTINGS_DIR      # the directory (relative to your top-level) where your configuration files are found. Valid values are:
                        # - civiclab            "civiclabSettings"
                        # - budget              "budgetAPI"
                        # - emergency response  "emerresponseAPI"
                        # - homelessness        "homelessAPI"
                        # - housing             "housingAPI"
                        # - transportation      "transportationAPI"

                        #
 CONFIG_BUCKET          # The s3 configuration bucket. Valid values:
                        # - civiclab            "hacko-civiclab-config"
                        # - budget              "hacko-budget-config"
                        # - emergency response  "emerresponse-config"
                        # - homelessness        "hacko-homeless-config"
                        # - housing             "hacko-housing-config"
                        # - transportation      "hacko-transportation-config"
 AWS_DEFAULT_REGION     # Use "us-west-2"
                        #
 AWS_ACCESS_KEY_ID      # The service deployer keyid for your service (Always hide in travis)                
                        #
 AWS_SECRET_ACCESS_KEY  # The service deployer secret key for your service (Always hide in travis)

IMPORTANT: Make sure that you don't store AWS or Docker repository credentials in your github repo or expose them in travis

7. Commit

Commit and push your code and ensure travis builds and deploys correctly

hackoregon/backend-service-pattern