fix: docker build out-of-disk issue - aggressive cleanup

- .dockerignore: exclude build/cache/docs to reduce build context (59 lines)
- Dockerfile: add aggressive cleanup (cache, registry, git) after cargo build
- Dockerfile: use --locked flag for reproducible builds
- build.yaml: add pre-build disk cleanup (docker + cargo cache)
- build.yaml: clean cargo before Docker build to free space
- build.yaml: show disk usage before/after for debugging

Fixes 'No space left on device' error during Docker build in runner

.dockerignore

@@ -1,12 +1,55 @@
+# Git
 .git
 .gitignore
+.gitattributes
+
+# CI/CD
+.github
+.gitea
+.gitlab-ci.yml
+
+# Kubernetes
+k8s/
+helm/
+
+# Documentation
 *.md
-__pycache__
-*.pyc
-.env.local
-.venv
-venv/
-.pytest_cache
-.coverage
-htmlcov
+docs/
+
+# IDE
+.vscode
+.idea
+*.swp
+*.swo
+*~
+
+# OS
 .DS_Store
+Thumbs.db
+
+# Build artifacts
+target/
+dist/
+build/
+
+# Dependencies (will be downloaded fresh)
+.cargo/
+Cargo.lock.bak
+
+# Testing
+.coverage
+coverage/
+
+# Secrets
+.env
+.env.local
+.env.*.local
+
+# Archives
+*.tar
+*.tar.gz
+*.zip
+
+# Node (if any)
+node_modules/
+*.log

.gitea/workflows/build.yaml

@@ -18,6 +18,15 @@ jobs:
     name: CI
     runs-on: rust
     steps:
+      - name: Clean disk space (runner GC)
+        run: |
+          df -h /
+          echo "Cleaning docker, cargo cache..."
+          docker system prune -af --volumes || true
+          rm -rf ~/.cargo/registry/cache ~/.cargo/registry/index ~/.cargo/git || true
+          rm -rf /tmp/* || true
+          df -h /
+
       - name: Install Node.js and Docker
         run: |
           apt-get update
@@ -48,6 +57,12 @@ jobs:
           REGISTRY_USER: ${{ secrets.FORGEJO_REGISTRY_USER }}
           REGISTRY_TOKEN: ${{ secrets.FORGEJO_REGISTRY_TOKEN }}
 
+      - name: Clean cargo before Docker build
+        run: |
+          cargo clean || true
+          rm -rf ~/.cargo/registry/cache ~/.cargo/registry/index ~/.cargo/git || true
+          df -h /
+
       - name: Build and push Docker image (SHA tag only)
         run: |
           docker build --no-cache --progress=plain \
@@ -56,5 +71,8 @@ jobs:
           docker push "${IMAGE}:${{ steps.sha.outputs.short_sha }}"
           echo "Pushed: ${IMAGE}:${{ steps.sha.outputs.short_sha }}"
 
-      - name: Prune unused images
-        run: docker image prune -a --force 2>&1 | tail -3 || true
+      - name: Prune unused images and cleanup
+        run: |
+          docker image prune -a --force 2>&1 | tail -3 || true
+          cargo clean || true
+          df -h /

Dockerfile

@@ -5,14 +5,23 @@ FROM rust:1-bookworm as builder
 
 WORKDIR /build
 
+# Build settings
+ENV SQLX_OFFLINE=true
+
 # Copy source
 COPY . .
 
-# Build the mem binary (offline sqlx - uses .sqlx/ cache)
-ENV SQLX_OFFLINE=true
-RUN cargo build --release -p mem-cli && \
+# Build release binary with space-efficient cleanup
+RUN cargo build --release -p mem-cli --locked && \
     strip target/release/mem && \
-    rm -rf target/release/deps target/release/build target/release/incremental target/release/.fingerprint
+    # Aggressive cleanup to free disk space
+    rm -rf target/release/deps && \
+    rm -rf target/release/build && \
+    rm -rf target/release/incremental && \
+    rm -rf target/release/.fingerprint && \
+    rm -rf .cargo/registry/cache && \
+    rm -rf .cargo/registry/index && \
+    rm -rf .cargo/git
 
 # Stage 2: Runtime
 FROM debian:bookworm-slim