make host configure to support ipv6

Author: mvanlonden

README.md

@@ -73,6 +73,7 @@ Helpers:
 Set the following ENV VARS:
 
 ```bash
+PG_META_HOST="0.0.0.0"
 PG_META_PORT=8080
 PG_META_DB_HOST="postgres"
 PG_META_DB_NAME="postgres"

src/server/app.ts

@@ -6,6 +6,7 @@ import {
   GENERATE_TYPES,
   GENERATE_TYPES_INCLUDED_SCHEMAS,
   PG_CONNECTION,
+  PG_META_HOST,
   PG_META_PORT,
   PG_META_REQ_HEADER,
 } from './constants'
@@ -106,11 +107,11 @@ if (EXPORT_DOCS) {
   })()
 } else {
   app.ready(() => {
-    app.listen(PG_META_PORT, '0.0.0.0', () => {
+    app.listen(PG_META_PORT, PG_META_HOST, () => {
       app.log.info(`App started on port ${PG_META_PORT}`)
       const adminApp = buildAdminApp({ logger })
       const adminPort = PG_META_PORT + 1
-      adminApp.listen(adminPort, '0.0.0.0', () => {
+      adminApp.listen(adminPort, PG_META_HOST, () => {
         adminApp.log.info(`Admin App started on port ${adminPort}`)
       })
     })

src/server/constants.ts

@@ -1,3 +1,4 @@
+export const PG_META_HOST = process.env.PG_META_HOST || '0.0.0.0'
 export const PG_META_PORT = Number(process.env.PG_META_PORT || 1337)
 export const CRYPTO_KEY = process.env.CRYPTO_KEY || 'SAMPLE_KEY'