ad build arg for base images

.drone.yml

@@ -53,6 +53,9 @@ steps:
       repo: ocram85/blog
       tags: "next"
       dockerfile: Dockerfile
+      build_args:
+        - NODE_BASE=lts-buster-slim
+        - NGINX_BASE=1.21.6-alpine
 
   - name: "Trivy (next)"
     image: aquasec/trivy
@@ -111,6 +114,9 @@ steps:
       repo: ocram85/blog
       auto_tag: true
       dockerfile: Dockerfile
+      build_args:
+        - NODE_BASE=lts-buster-slim
+        - NGINX_BASE=1.21.6-alpine
 
   - name: "Trivy (latest)"
     image: aquasec/trivy

Dockerfile

@@ -1,4 +1,8 @@
-FROM node:lts-buster-slim as builder
+# Build ARGS for base image versions
+ARG NODE_BASE=lts-buster-slim
+ARG NGINX_BASE=1.21.6-alpine
+
+FROM node:${NODE_BASE} as builder
 COPY . /src
 #RUN ls -la
 WORKDIR /src
@@ -6,7 +10,7 @@ WORKDIR /src
 RUN npm install \
   && npm run build
 
-FROM nginx:1.21.6-alpine as prod
+FROM nginx:${NGINX_BASE} as prod
 LABEL maintainer="marco.blessing@googlemail.com"
 HEALTHCHECK  --interval=15s --timeout=5s \
   CMD wget --no-verbose --tries=1 --spider http://localhost:80/ || exit 1