compose

#!/bin/bash

# Fail on error, so this script can be chained safely:
set -e

# Cannot manage live deployment with the script!
if [ "$2" == "live" ]; then
  echo "Cannot manage live deployment with this script any more. Please use ./compose-live"
  exit 1
fi

# Need at least four args and the first argument to be the site:
if [ $# -lt 4 ] || ! { [ $1 = "cs" ] || [ $1 = "phy" ]; } || ! { [ $2 = "dev" ] || [ $2 = "staging" ] || [ $2 = "test" ]; } ; then
  echo "Usage: compose [cs|phy] [staging|dev|test] [APP_VERSION] [DOCKER_ARGS]..."
  exit 1
fi

# Extract args:
SITE=$1
ENV=$2
APP_VERSION=$3
# We're done with the first three args. The remainder will be passed to docker-compose:
shift 3


# Use the app image to find the correct API version to use:
if [ $1 = "create" ] || [ $1 = "pull" ] || [ $1 = "push" ] || [ $1 = "run" ] || [ $1 = "start" ] || [ $1 = "up" ]; then
  # This will cause new containers or should update containers, so pull newer images if possible:
  docker pull docker.isaacscience.org/isaac-$SITE-app:$APP_VERSION
  API_VERSION=$(docker inspect -f '{{.Config.Labels.apiVersion}}' docker.isaacscience.org/isaac-$SITE-app:$APP_VERSION)
  docker pull docker.isaacscience.org/isaac-api:$API_VERSION

elif [ $1 = "down" ] || [ $1 = "stop" ] || [ $1 = "restart" ] || [ $1 = "exec" ] || [ $1 = "config" ] || [ $1 = "logs" ] || [ $1 = "kill" ] || [ $1 = "ps" ]; then
  # This affects existing containers, so don't pull newer images:
  API_VERSION=$(docker inspect -f '{{.Config.Labels.apiVersion}}' docker.isaacscience.org/isaac-$SITE-app:$APP_VERSION)

else
  # This might not be a docker-compose operation. If it is, it could be added above to the correct branch.
  echo "Error: Unsupported docker-compose operation '$1'!"
  exit 1
fi

# Ensure we actually _have_ an API_VERSION before we continue, though the "set -e" might avoid this:
if [ -z $API_VERSION ]; then
  echo "Error: Cannot extract API version from APP image!"
  exit 1
fi

API_NAME=$SITE-api-$ENV-$API_VERSION
APP_NAME=$SITE-app-$ENV-$APP_VERSION
PG_CONTAINER_NAME=$SITE-pg-$ENV
ES_CONTAINER_NAME=$SITE-elasticsearch-live

# The content repo is named differently for both sites in a non-standard way:
if [ "$SITE" == "cs" ]; then
  CONTENT_REPO="cs-content"
elif [ "$SITE" == "phy" ]; then
  CONTENT_REPO="rutherford-content"
fi

docker-compose -p dc-$APP_NAME -f - $@ << EOF
version: '2'
services:
  $APP_NAME:
    container_name: $APP_NAME
    image: docker.isaacscience.org/isaac-$SITE-app:$APP_VERSION
    restart: "no"
    networks:
      default:
        aliases:
          - $SITE-app-$ENV
  $API_NAME:
    container_name: $API_NAME
    image: docker.isaacscience.org/isaac-api:$API_VERSION
    restart: "no"
    extra_hosts:
      - local-smtp:$LOCAL_SMTP
    links:
      - $PG_CONTAINER_NAME:postgres
    external_links:
      - $ES_CONTAINER_NAME:elasticsearch
    environment:
      - SEGUE_CONFIG_LOCATION=/local/data/conf/segue-config.properties
      - JAVA_OPTIONS=-Dlog.path=/isaac-logs -Dsegue.version=$API_VERSION
    volumes:
      - /local/data/m2:/root/.m2:rw
      - /local/data/isaac-config/$SITE/segue-config.$ENV.properties:/local/data/conf/segue-config.properties:ro
      - /local/data/$CONTENT_REPO:/local/data/$CONTENT_REPO:rw
      - /local/data/keys:/local/data/keys:ro
      - /local/data/school_list_2019.csv:/local/data/school_list_2019.csv:ro
      - /local/data/school_list_2022.csv:/local/data/school_list_2022.csv:ro
      - /var/log/isaac/$SITE-$ENV:/isaac-logs:rw
    networks:
      default:
        aliases:
          - $SITE-api-$ENV-any
    logging:
      driver: journald
      options:
        tag: $SITE-isaac-api-$ENV
  $PG_CONTAINER_NAME:
    container_name: $PG_CONTAINER_NAME
    restart: "no"
    image: postgres:13
    environment:
      POSTGRES_USER: rutherford
      POSTGRES_PASSWORD: rutherf0rd
    volumes:
      - $PG_CONTAINER_NAME:/var/lib/postgresql/data
      - /local/src/isaac-api/src/main/resources/db_scripts/postgres-rutherford-create-script.sql:/docker-entrypoint-initdb.d/00-isaac-create.sql:ro
      - /local/src/isaac-api/src/main/resources/db_scripts/postgres-rutherford-functions.sql:/docker-entrypoint-initdb.d/01-isaac-functions.sql:ro
      - /local/src/isaac-api/src/main/resources/db_scripts/quartz_scheduler_create_script.sql:/docker-entrypoint-initdb.d/02-isaac-quartz.sql:ro
      # The initialisation for the test DB, which is ignored with non-empty database volumes anyway:
      - /local/data/test-$SITE-db-schema.sql:/docker-entrypoint-initdb.d/99-test-db-schema.sql:ro
networks:
  default:
    external:
      name: isaac
volumes:
  $PG_CONTAINER_NAME:
    external: true
EOF

exit 0