Use PUBLIC_PATH environment variable when building urls to images

.gitlab-ci.yml

@@ -5,6 +5,7 @@ stages:
 variables:
   DOCKER_IMAGE: ${CI_REGISTRY_IMAGE}:${CI_COMMIT_SHORT_SHA}
   DOCKER_TLS_CERTDIR: ""
+  PUBLIC_PATH: /api/docs
 
 .build:
   stage: build

config.ts

@@ -3,6 +3,7 @@ import path from 'path';
 const host = process.env.HOST || 'http://127.0.0.1:3000';
 const isProduction = process.env.NODE_ENV === 'production';
 const isBuildingDocs = process.env.NODE_ENV === 'build-docs';
+const publicPath = process.env.PUBLIC_PATH || '/api';
 
 const docsPath = path.resolve(__dirname, 'docs');
 const buildPath = isProduction
@@ -23,7 +24,7 @@ export default {
   docsPath,
   articlesPath: path.join(docsPath, 'article'),
   videosPath: path.join(docsPath, 'video'),
-  publicPath: isProduction ? '/api/docs' : '/api',  // FIXME: we'll need to rely on the environment variable other than NODE_ENV for this
+  publicPath,
   indexDirectory,
   articlesIndexName,
   articlesIndexPath: path.join(indexDirectory, articlesIndexName),