Create a stack for shopify service (#34)

Part of [Service provider auctions for web deployments](https://www.notion.so/Service-provider-auctions-for-web-deployments-104a6b22d47280dbad51d28aa3a91d75)
- Create a Shopify service that integrates Shopify ecommerce app with the Laconic wallet

Co-authored-by: Neeraj <neeraj.rtly@gmail.com>
Reviewed-on: cerc-io/testnet-laconicd-stack#34

stack-orchestrator/compose/docker-compose-laconic-shopify.yml

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+services:
+  shopify:
+    restart: unless-stopped
+    image: cerc/laconic-shopify:local
+    command: ["bash", "-c", "./start-faucet.sh"]
+    environment:
+      CERC_SCRIPT_DEBUG: ${CERC_SCRIPT_DEBUG}
+      CERC_SHOPIFY_GRAPHQL_URL: ${CERC_SHOPIFY_GRAPHQL_URL}
+      CERC_SHOPIFY_ACCESS_TOKEN: ${CERC_SHOPIFY_ACCESS_TOKEN}
+      CERC_FETCH_ORDER_DELAY: ${CERC_FETCH_ORDER_DELAY:-10000}
+      CERC_FAUCET_URL: ${CERC_FAUCET_URL}
+      CERC_ITEMS_PER_ORDER: ${CERC_ITEMS_PER_ORDER:-10}
+    volumes:
+      - shopify-data:/app/data
+      - ../config/laconic-shopify/start-shopify.sh:/app/start-faucet.sh
+      - ../config/laconic-shopify/product_pricings.json:/app/config/product_pricings.json
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+
+volumes:
+  shopify-data:

stack-orchestrator/config/laconic-shopify/product_pricings.json

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+{
+    "10 pre-paid webapp deployments": "100000",
+    "100 webapp deployments": "1000000",
+    "500 webapp deployments": "5000000",
+    "1000 webapp deployments": "10000000"
+}

stack-orchestrator/config/laconic-shopify/start-shopify.sh

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+#!/bin/bash
+
+set -e
+set -u
+if [ -n "$CERC_SCRIPT_DEBUG" ]; then
+  set -x
+fi
+
+echo "Shopify GraphQL URL: $CERC_SHOPIFY_GRAPHQL_URL"
+echo "Shopify access token: $CERC_SHOPIFY_ACCESS_TOKEN"
+echo "Fetch order delay: $CERC_FETCH_ORDER_DELAY"
+echo "Faucet URL: $CERC_FAUCET_URL"
+echo "Number of line items per order: $CERC_ITEMS_PER_ORDER"
+
+export SHOPIFY_GRAPHQL_URL=$CERC_SHOPIFY_GRAPHQL_URL
+export SHOPIFY_ACCESS_TOKEN=$CERC_SHOPIFY_ACCESS_TOKEN
+export FETCH_ORDER_DELAY=$CERC_FETCH_ORDER_DELAY
+export FAUCET_URL=$CERC_FAUCET_URL
+export ITEMS_PER_ORDER=$CERC_ITEMS_PER_ORDER
+
+yarn start

stack-orchestrator/container-build/cerc-laconic-shopify/Dockerfile

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+FROM node:20-bullseye
+
+WORKDIR /app
+
+COPY . .
+
+RUN yarn install
+
+CMD ["yarn", "start"]

stack-orchestrator/container-build/cerc-laconic-shopify/build.sh

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+#!/usr/bin/env bash
+
+# Build cerc/laconic-faucet
+source ${CERC_CONTAINER_BASE_DIR}/build-base.sh
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+docker build -t cerc/laconic-shopify:local ${build_command_args} -f ${SCRIPT_DIR}/Dockerfile ${CERC_REPO_BASE_DIR}/laconic-shopify

stack-orchestrator/stacks/laconic-shopify/README.md

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+# laconic-shopify
+
+Instructions for running the laconic shopify
+
+## Setup
+
+* Clone the stack repo:
+
+  ```bash
+  laconic-so fetch-stack git.vdb.to/cerc-io/testnet-laconicd-stack
+  ```
+
+* Clone the laconic-shopify respository:
+
+  ```bash
+  laconic-so --stack ~/cerc/testnet-laconicd-stack/stack-orchestrator/stacks/laconic-shopify setup-repositories
+  ```
+
+* Build the container image:
+
+  ```bash
+  laconic-so --stack ~/cerc/testnet-laconicd-stack/stack-orchestrator/stacks/laconic-shopify build-containers
+  ```
+
+  This should create the `cerc/laconic-shopify-faucet` image locally
+
+## Create a deployment
+
+* Create a spec file for the deployment:
+
+  ```bash
+  laconic-so --stack ~/cerc/testnet-laconicd-stack/stack-orchestrator/stacks/laconic-shopify deploy init --output laconic-shopify-spec.yml
+  ```
+
+* Create a deployment from the spec file:
+
+  ```bash
+  laconic-so --stack ~/cerc/testnet-laconicd-stack/stack-orchestrator/stacks/laconic-shopify deploy create --spec-file laconic-shopify-spec.yml --deployment-dir laconic-shopify-deployment
+  ```
+
+## Configuration
+
+* Inside the `laconic-shopify-deployment` deployment directory, open `config.env` file and set following env variables:
+
+  ```bash
+  # Shopify GraphQL URL
+  CERC_SHOPIFY_GRAPHQL_URL='https://6h071x-zw.myshopify.com/admin/api/2024-10/graphql.json'
+
+  # Access token for Shopify API
+  CERC_SHOPIFY_ACCESS_TOKEN=
+
+  # Delay for fetching orders in milliseconds
+  CERC_FETCH_ORDER_DELAY=10000
+
+  # URL for the laconic faucet
+  CERC_FAUCET_URL='http://host.docker.internal:3000/'
+
+  # Number of line items per order in Get Orders GraphQL query
+  CERC_ITEMS_PER_ORDER=10
+  ```
+
+## Start the deployment
+
+  ```bash
+  laconic-so deployment --dir laconic-shopify-deployment start
+  ```
+
+## Check status
+
+* To list down and monitor the running container:
+
+  ```bash
+  # With status
+  docker ps
+
+  # Check logs for a container
+  docker logs -f <CONTAINER_ID>
+  ```
+
+## Clean up
+
+* Stop the `laconic-shopify-faucet` service running in the background:
+
+  ```bash
+  # Stop the docker container
+  laconic-so deployment --dir laconic-shopify-deployment stop
+  ```
+
+* To stop the service and also delete data:
+
+  ```bash
+  # Stop the docker containers
+  laconic-so deployment --dir laconic-shopify-deployment stop --delete-volumes
+
+  # Remove deployment directory (deployment will have to be recreated for a re-run)
+  rm -r laconic-shopify-deployment
+  ```

stack-orchestrator/stacks/laconic-shopify/stack.yml

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+version: "1.0"
+name: laconic-shopify
+description: "Service that integrates a Shopify app with the Laconic wallet."
+repos:
+  - git.vdb.to/cerc-io/laconic-shopify
+containers:
+  - cerc/laconic-shopify
+pods:
+  - laconic-shopify