installing webpack-encore and yarn in node container

app/config/bundles.php

@@ -9,4 +9,5 @@ return [
     Doctrine\Bundle\DoctrineBundle\DoctrineBundle::class => ['all' => true],
     Doctrine\Bundle\MigrationsBundle\DoctrineMigrationsBundle::class => ['all' => true],
     Symfony\Bundle\MakerBundle\MakerBundle::class => ['dev' => true],
+    Symfony\WebpackEncoreBundle\WebpackEncoreBundle::class => ['all' => true],
 ];

app/config/packages/assets.yaml

@@ -0,0 +1,3 @@
+framework:
+    assets:
+        json_manifest_path: '%kernel.project_dir%/public/build/manifest.json'

app/config/packages/prod/webpack_encore.yaml

@@ -0,0 +1,4 @@
+#webpack_encore:
+    # Cache the entrypoints.json (rebuild Symfony's cache when entrypoints.json changes)
+    # Available in version 1.2
+    #cache: true

app/config/packages/test/webpack_encore.yaml

@@ -0,0 +1,2 @@
+#webpack_encore:
+#    strict_mode: false

app/config/packages/webpack_encore.yaml

@@ -0,0 +1,30 @@
+webpack_encore:
+    # The path where Encore is building the assets - i.e. Encore.setOutputPath()
+    output_path: '%kernel.project_dir%/public/build'
+    # If multiple builds are defined (as shown below), you can disable the default build:
+    # output_path: false
+
+    # Set attributes that will be rendered on all script and link tags
+    script_attributes:
+        defer: true
+    # link_attributes:
+
+    # If using Encore.enableIntegrityHashes() and need the crossorigin attribute (default: false, or use 'anonymous' or 'use-credentials')
+    # crossorigin: 'anonymous'
+
+    # Preload all rendered script and link tags automatically via the HTTP/2 Link header
+    # preload: true
+
+    # Throw an exception if the entrypoints.json file is missing or an entry is missing from the data
+    # strict_mode: false
+
+    # If you have multiple builds:
+    # builds:
+        # pass "frontend" as the 3rg arg to the Twig functions
+        # {{ encore_entry_script_tags('entry1', null, 'frontend') }}
+
+        # frontend: '%kernel.project_dir%/public/frontend/build'
+
+    # Cache the entrypoints.json (rebuild Symfony's cache when entrypoints.json changes)
+    # Put in config/packages/prod/webpack_encore.yaml
+    # cache: true