#349 Use node 18 in example Dockerfile

Lukas Fischer · Zero3141 · commit 585bb808e1f2 · 2023-09-04T14:20:14.000+02:00
We upgraded our images to node 18 in secureCodeBox/secureCodeBox#1853, this example file should mirror that. Signed-off-by: Lukas Fischer <lukas.fischer@iteratec.com>
diff --git a/docs/contributing/integrating-a-hook/dockerfile.md b/docs/contributing/integrating-a-hook/dockerfile.md
@@ -11,14 +11,15 @@ The Dockerfile for a hook looks like the following.
 If you use the provided *hook-sdk*, you won't need to apply any changes to it.
 
 ```Dockerfile
+ARG namespace
 ARG baseImageTag
-FROM node:12-alpine as build
+FROM node:18-alpine as build
 RUN mkdir -p /home/app
 WORKDIR /home/app
 COPY package.json package-lock.json ./
 RUN npm ci --production
 
-FROM securecodebox/hook-sdk-nodejs:${baseImageTag:-latest}
+FROM ${namespace:-securecodebox}/hook-sdk-nodejs:${baseImageTag:-latest}
 WORKDIR /home/app/hook-wrapper/hook/
 COPY --from=build --chown=app:app /home/app/node_modules/ ./node_modules/
 COPY --chown=app:app ./hook.js ./hook.js
