added docker file and necessary utils for production environment

.dockerignore

@@ -0,0 +1,44 @@
+# compiled output
+/dist
+/node_modules
+
+# Logs
+logs
+*.log
+npm-debug.log*
+pnpm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# OS
+.DS_Store
+
+# Tests
+/coverage
+/.nyc_output
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# IDE - VSCode
+.vscode/*
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+# misc
+/.silent-pay-indexer
+
+#e2e 
+/e2e/.logs
+
+#dev
+/config/dev.config.yaml
+/config/e2e.config.yaml

.gitignore

@@ -38,3 +38,6 @@ lerna-debug.log*
 
 #e2e 
 /e2e/.logs
+
+#dev
+/config/dev.config.yaml

Dockerfile

@@ -0,0 +1,40 @@
+# Stage 1: Build the NestJS application
+FROM node:22-alpine AS builder
+
+WORKDIR /app
+
+# Copy package.json and package-lock.json for efficient layer caching
+COPY package*.json ./
+
+# Install dependencies
+RUN npm install
+
+# Copy the rest of the application code
+COPY . .
+
+# Build the application
+RUN npm run build
+
+# Stage 2: Production image
+FROM node:22-alpine AS production
+
+WORKDIR /app
+
+RUN apk add --no-cache gettext
+
+#Copy the compiled application from the build stage
+COPY --from=builder /app/dist ./dist
+COPY --from=builder /app/migrations ./migrations
+
+#Copy package.json and install only production dependencies
+COPY package.json ./
+RUN npm install --only=production
+
+# Set environment variables for SQLite path and app port
+ENV SQLITE_PATH="/app/.silent-pay-indexer/db/database.sqlite"
+ENV APP_PORT="80"
+
+EXPOSE $APP_PORT
+
+# Set up entrypoint to handle database migration and config generation
+ENTRYPOINT ["sh", "-c", "npm run migration:run && envsubst < dist/config/config.template.yaml > dist/config/config.yaml && node dist/main.js"]

config/config.template.yaml

@@ -0,0 +1,42 @@
+db:
+  path:  ${SQLITE_PATH}
+  synchronize: false
+app:
+  port: ${PORT}
+  verbose: ${VERBOSE}
+  debug: ${DEBUG}
+  network: ${NETWORK}
+  requestRetry:
+    delay: ${DELAY} # delay in Milliseconds
+    count: ${COUNT} 
+providerType: ${PROVIDER_TYPE}
+esplora:
+  url: ${HOST}
+  batchSize: ${BATCH_SIZE}
+bitcoinCore:
+  protocol: ${PROTOCOL} # http | https
+  rpcHost: ${RPC_HOST}
+  rpcPass: ${RPC_PASS}
+  rpcUser: ${RPC_USER}
+  rpcPort: ${RPC_PORT}
+
+
+### Example ####
+# db:
+#   path: ':memory:'
+#   synchronize: true
+# app:
+#   port: 3000
+#   verbose: false
+#   debug: true
+#   network: regtest
+#   requestRetry:
+#     delay: 500
+#     count: 1
+# providerType: BITCOIN_CORE_RPC
+# bitcoinCore:
+#   protocol: http
+#   rpcHost: localhost
+#   rpcPass: password
+#   rpcUser: polaruser
+#   rpcPort: 18443

migrations/data-source.ts

@@ -10,7 +10,7 @@ function getEnvVariable(key: string): string {
 
 async function configureDataSource(): Promise<DataSource> {
     return new DataSource({
-        database: getEnvVariable('DB_PATH'),
+        database: getEnvVariable('SQLITE_PATH'),
         type: 'sqlite',
         synchronize: false,
         logging: false,