Install oasdiff in Docker

Author: ulrikandersen

Dockerfile

@@ -1,5 +1,11 @@
 FROM node:24-alpine AS base
 
+FROM base AS oasdiff
+ARG OASDIFF_VERSION=2.10.0
+RUN apk add --no-cache curl tar ca-certificates
+RUN curl -fsSL https://raw.githubusercontent.com/oasdiff/oasdiff/main/install.sh \
+    | sh -s -- -b /usr/local/bin "v${OASDIFF_VERSION}"
+
 # Install dependencies only when needed
 FROM base AS deps
 # Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
@@ -46,6 +52,7 @@ RUN addgroup --system --gid 1001 nodejs
 RUN adduser --system --uid 1001 nextjs
 
 COPY --from=builder /app/public ./public
+COPY --from=oasdiff /usr/local/bin/oasdiff /usr/local/bin/oasdiff
 
 # Set the correct permission for prerender cache
 RUN mkdir .next