Delete unused files

TESTING.md

@@ -1,169 +0,0 @@
-# Testing Strategy
-
-## Layers
-
-### 1. Unit tests (no IO)
-
-Pure logic that can be tested with `cargo test`, no containers needed.
-
-**`hasher.rs`** (already done)
-- Deterministic placement for the same key
-- All volumes appear when requesting full replication
-- Even distribution across volumes
-- Correct key path format
-
-**`db.rs`** (TODO)
-- Open an in-memory SQLite (`:memory:`)
-- Test put/get/delete/list_keys/all_records round-trip
-- Test upsert behavior (put same key twice)
-- Test soft delete (deleted flag)
-- Test bulk_put
-
-**Pure decision functions** (TODO, after refactor)
-- Given a record and a set of healthy volumes, which volume to redirect to?
-- Given fan-out results (list of Ok/Err), which volumes succeeded? Should we rollback?
-- Given current vs desired volume placement, what needs to move?
-
-### 2. Volume client tests (mock HTTP)
-
-Use a lightweight HTTP server in-process (e.g. `axum` itself or `wiremock`) to test `volume.rs` without real nginx.
-
-- PUT blob + .key sidecar → verify both requests made
-- GET blob → verify body returned
-- DELETE blob → verify both blob and .key deleted
-- DELETE non-existent → verify 404 is treated as success
-- Health check → respond 200 → healthy; timeout → unhealthy
-
-### 3. Integration tests (real nginx)
-
-Full end-to-end with Docker containers. These are slower but catch real issues.
-
-#### Setup
-
-```yaml
-# docker-compose.test.yml
-services:
-  vol1:
-    image: nginx:alpine
-    volumes:
-      - ./tests/nginx.conf:/etc/nginx/conf.d/default.conf
-      - vol1_data:/data
-    ports: ["3101:80"]
-
-  vol2:
-    image: nginx:alpine
-    volumes:
-      - ./tests/nginx.conf:/etc/nginx/conf.d/default.conf
-      - vol2_data:/data
-    ports: ["3102:80"]
-
-  vol3:
-    image: nginx:alpine
-    volumes:
-      - ./tests/nginx.conf:/etc/nginx/conf.d/default.conf
-      - vol3_data:/data
-    ports: ["3103:80"]
-
-volumes:
-  vol1_data:
-  vol2_data:
-  vol3_data:
-```
-
-```nginx
-# tests/nginx.conf
-server {
-    listen 80;
-    root /data;
-
-    location / {
-        dav_methods PUT DELETE;
-        create_full_put_path on;
-        autoindex on;
-        autoindex_format json;
-    }
-}
-```
-
-```toml
-# tests/test_config.toml
-[server]
-port = 3100
-replication_factor = 2
-virtual_nodes = 100
-
-[database]
-path = "/tmp/mkv-test/index.db"
-
-[[volumes]]
-url = "http://localhost:3101"
-
-[[volumes]]
-url = "http://localhost:3102"
-
-[[volumes]]
-url = "http://localhost:3103"
-```
-
-#### Test cases
-
-**Happy path**
-1. PUT `/hello` with body `"world"` → 201
-2. HEAD `/hello` → 200, Content-Length: 5
-3. GET `/hello` → 302 to a volume URL
-4. Follow redirect → body is `"world"`
-5. GET `/` → list contains `"hello"`
-6. DELETE `/hello` → 204
-7. GET `/hello` → 404
-
-**Replication verification**
-1. PUT `/replicated` → 201
-2. Read SQLite directly, verify 2 volumes listed
-3. GET blob from both volume URLs directly, verify identical content
-
-**Volume failure**
-1. PUT `/failtest` → 201
-2. Stop vol1 container
-3. GET `/failtest` → should still 302 to vol2 (healthy replica)
-4. PUT `/new-during-failure` → should fail if replication_factor can't be met, or succeed on remaining volumes depending on ring placement
-5. Restart vol1
-
-**Rebuild**
-1. PUT several keys
-2. Delete the SQLite database
-3. Run `mkv rebuild`
-4. GET all keys → should all still work
-
-**Rebalance**
-1. PUT several keys with 3 volumes
-2. Add a 4th volume to config
-3. Run `mkv rebalance --dry-run` → verify output
-4. Run `mkv rebalance` → verify keys migrated
-5. GET all keys → should all work
-
-#### Running integration tests
-
-```bash
-# Start volumes
-docker compose -f docker-compose.test.yml up -d
-
-# Wait for nginx to be ready
-sleep 2
-
-# Run integration tests
-cargo test --test integration
-
-# Tear down
-docker compose -f docker-compose.test.yml down -v
-```
-
-The integration test binary (`tests/integration.rs`) starts the mkv server
-in-process on a random port, runs all test cases sequentially (shared state),
-then shuts down.
-
-### 4. What we don't test
-
-- Performance / benchmarks (follow-up)
-- TLS, auth (not implemented)
-- Concurrent writers racing on the same key (SQLite serializes this correctly by design)
-- Blobs > available RAM (streaming is a follow-up)

TODO.md

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-# mkv TODO
-
-## Done
-
-- [x] SQLite schema + pragmas + ReadPool + WriterHandle (`db.rs`)
-- [x] Config parsing with validation (`config.rs`)
-- [x] Error types with axum IntoResponse (`error.rs`)
-- [x] Consistent hash ring with virtual nodes + stability tests (`hasher.rs`)
-- [x] Volume HTTP client — key-as-path, no sidecar files (`volume.rs`)
-- [x] Health checker background task (`health.rs`)
-- [x] HTTP handlers with pure decision functions extracted (`server.rs`)
-- [x] CLI with clap subcommands (`main.rs`)
-- [x] Rebuild tool — recursive nginx autoindex walk (`rebuild.rs`)
-- [x] Rebalance tool with --dry-run (`rebalance.rs`)
-- [x] Integration tests — 8 tests against real nginx (Docker Compose)
-- [x] Unit tests — 17 tests (hasher, server pure fns, rebalance planning)
-- [x] Key-as-path simplification (removed content-addressed paths + .key sidecars)
-
-## Remaining
-
-### Worth doing
-
-- [x] **Typed volume errors** — replace `String` errors with a proper enum
-- [ ] **Unit tests for `db.rs`** — CRUD round-trip with in-memory SQLite
-- [x] **Graceful shutdown** — drain in-flight requests on SIGINT/SIGTERM
-
-### Nice to have
-
-- [ ] **Metrics** — request count, latency histograms, volume error rates
-- [ ] **Request ID / tracing spans** — per-request trace context
-- [ ] **Config reload** — SIGHUP to reload config without restart
-- [ ] **Rate limiting on list endpoint** — prefix scan can be expensive

config.bench.toml

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-[server]
-port = 3000
-replication_factor = 2
-virtual_nodes = 100
-
-[database]
-path = "/tmp/mkv-bench/index.db"
-
-[[volumes]]
-url = "http://localhost:3101"
-
-[[volumes]]
-url = "http://localhost:3102"
-
-[[volumes]]
-url = "http://localhost:3103"

config.toml

@@ -1,16 +0,0 @@
-[server]
-port = 3000
-replication_factor = 2
-virtual_nodes = 100
-
-[database]
-path = "/tmp/mkv/index.db"
-
-[[volumes]]
-url = "http://localhost:3001"
-
-[[volumes]]
-url = "http://localhost:3002"
-
-[[volumes]]
-url = "http://localhost:3003"

tests/test_config.toml

@@ -1,16 +0,0 @@
-[server]
-port = 3100
-replication_factor = 2
-virtual_nodes = 100
-
-[database]
-path = "/tmp/mkv-test/index.db"
-
-[[volumes]]
-url = "http://localhost:3101"
-
-[[volumes]]
-url = "http://localhost:3102"
-
-[[volumes]]
-url = "http://localhost:3103"