Allow the use of sudo in the docker container

.devcontainer/docker-compose.yml

@@ -2,7 +2,9 @@ version: '3'
 
 services:
   silverstripe:
-    image: manuth/silverstripe-dev
+    build:
+      context: .
+      dockerfile: web.Dockerfile
     env_file: devcontainer.env
     environment:
       - SS_ENVIRONMENT_TYPE=dev

.devcontainer/web.Dockerfile

@@ -0,0 +1,10 @@
+FROM manuth/silverstripe-dev
+
+RUN apt-get update && \
+    apt-get -y install sudo && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN adduser --disabled-password --gecos '' vscode && \
+    sed -i /etc/sudoers -re 's/^%sudo.*/%sudo ALL=(ALL:ALL) NOPASSWD: ALL/g' && \
+    sed -i /etc/sudoers -re 's/^root.*/root ALL=(ALL:ALL) NOPASSWD: ALL/g' && \
+    echo 'vscode ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers