fix(ci): use Kaniko for base image build (no privileged mode)

.npmrc

@@ -1,3 +1 @@
 @mosaicstack:registry=https://git.mosaicstack.dev/api/packages/mosaic/npm/
-supportedArchitectures[libc][]=glibc
-supportedArchitectures[cpu][]=x64

.woodpecker/ci.yml

@@ -29,10 +29,9 @@ when:
         - ".trivyignore"
 
 variables:
-  - &node_image "node:24-slim"
+  - &node_image "node:24-alpine"
   - &install_deps |
     corepack enable
-    apt-get update && apt-get install -y --no-install-recommends python3 make g++
     pnpm config set store-dir /root/.local/share/pnpm/store
     pnpm install --frozen-lockfile
   - &use_deps |
@@ -170,7 +169,7 @@ steps:
         elif [ "$CI_COMMIT_BRANCH" = "main" ]; then
           DESTINATIONS="--destination git.mosaicstack.dev/mosaic/stack-api:latest"
         fi
-        /kaniko/executor --context . --dockerfile apps/api/Dockerfile --snapshot-mode=redo --cache=true --cache-repo git.mosaicstack.dev/mosaic/stack-api/cache $DESTINATIONS
+        /kaniko/executor --context . --dockerfile apps/api/Dockerfile --snapshot-mode=redo $DESTINATIONS
     when:
       - branch: [main]
         event: [push, manual, tag]
@@ -195,7 +194,7 @@ steps:
         elif [ "$CI_COMMIT_BRANCH" = "main" ]; then
           DESTINATIONS="--destination git.mosaicstack.dev/mosaic/stack-orchestrator:latest"
         fi
-        /kaniko/executor --context . --dockerfile apps/orchestrator/Dockerfile --snapshot-mode=redo --cache=true --cache-repo git.mosaicstack.dev/mosaic/stack-orchestrator/cache $DESTINATIONS
+        /kaniko/executor --context . --dockerfile apps/orchestrator/Dockerfile --snapshot-mode=redo $DESTINATIONS
     when:
       - branch: [main]
         event: [push, manual, tag]
@@ -220,7 +219,7 @@ steps:
         elif [ "$CI_COMMIT_BRANCH" = "main" ]; then
           DESTINATIONS="--destination git.mosaicstack.dev/mosaic/stack-web:latest"
         fi
-        /kaniko/executor --context . --dockerfile apps/web/Dockerfile --snapshot-mode=redo --cache=true --cache-repo git.mosaicstack.dev/mosaic/stack-web/cache --build-arg NEXT_PUBLIC_API_URL=https://api.mosaicstack.dev $DESTINATIONS
+        /kaniko/executor --context . --dockerfile apps/web/Dockerfile --snapshot-mode=redo --build-arg NEXT_PUBLIC_API_URL=https://api.mosaicstack.dev $DESTINATIONS
     when:
       - branch: [main]
         event: [push, manual, tag]

apps/api/Dockerfile

@@ -30,9 +30,6 @@ COPY packages/ui/package.json ./packages/ui/
 COPY packages/config/package.json ./packages/config/
 COPY apps/api/package.json ./apps/api/
 
-# Copy npm configuration for native binary architecture hints
-COPY .npmrc ./
-
 # Install dependencies (no cache mount — Kaniko builds are ephemeral in CI)
 # Then explicitly rebuild node-pty from source since pnpm may skip postinstall
 # scripts or fail to find prebuilt binaries for this Node.js version

apps/orchestrator/Dockerfile

@@ -22,9 +22,6 @@ COPY packages/shared/package.json ./packages/shared/
 COPY packages/config/package.json ./packages/config/
 COPY apps/orchestrator/package.json ./apps/orchestrator/
 
-# Copy npm configuration for native binary architecture hints
-COPY .npmrc ./
-
 # Install ALL dependencies (not just production)
 # No cache mount — Kaniko builds are ephemeral in CI
 RUN pnpm install --frozen-lockfile

apps/web/Dockerfile

@@ -24,9 +24,6 @@ COPY packages/ui/package.json ./packages/ui/
 COPY packages/config/package.json ./packages/config/
 COPY apps/web/package.json ./apps/web/
 
-# Copy npm configuration for native binary architecture hints
-COPY .npmrc ./
-
 # Install dependencies (no cache mount — Kaniko builds are ephemeral in CI)
 RUN pnpm install --frozen-lockfile
 
@@ -41,9 +38,6 @@ COPY packages/ui/package.json ./packages/ui/
 COPY packages/config/package.json ./packages/config/
 COPY apps/web/package.json ./apps/web/
 
-# Copy npm configuration for native binary architecture hints
-COPY .npmrc ./
-
 # Install production dependencies only
 RUN pnpm install --frozen-lockfile --prod