Rustls support with dynamic choice of TLS provider for cloud

.github/workflows/rust.yml

@@ -41,12 +41,19 @@ jobs:
       run: cargo clippy --verbose --all-targets --all-features
     - name: Cargo check with cpp_rust_unstable cfg
       run: RUSTFLAGS="--cfg cpp_rust_unstable" cargo clippy --verbose --all-targets --all-features
+
+# Features checks.
+    # No features.
     - name: Cargo check without features
       run: cargo check --all-targets --manifest-path "scylla/Cargo.toml" --features ""
-    - name: Cargo check with all serialization features
-      run: cargo check --all-targets --manifest-path "scylla/Cargo.toml" --features "full-serialization"
+
+    # All features.
     - name: Cargo check with all features
       run: cargo check --all-targets --manifest-path "scylla/Cargo.toml" --all-features
+
+    # Various (de)serialization features.
+    - name: Cargo check with all serialization features
+      run: cargo check --all-targets --manifest-path "scylla/Cargo.toml" --features "full-serialization"
     - name: Cargo check with secrecy-08 feature
       run: cargo check --all-targets --manifest-path "scylla/Cargo.toml" --features "secrecy-08"
     - name: Cargo check with chrono-04 feature
@@ -59,6 +66,14 @@ jobs:
       run: cargo check --all-targets --manifest-path "scylla/Cargo.toml" --features "num-bigint-04"
     - name: Cargo check with bigdecimal-04 feature
       run: cargo check --all-targets --manifest-path "scylla/Cargo.toml" --features "bigdecimal-04"
+
+    # TLS-related feature sets.
+    - name: Cargo check with openssl-x feature
+      run: cargo check --all-targets --manifest-path "scylla/Cargo.toml" --features "openssl-010"
+    - name: Cargo check with rustls-x feature
+      run: cargo check --all-targets --manifest-path "scylla/Cargo.toml" --features "rustls-023"
+    # (openssl-x, rustls-x) is checked in tls.yml.
+
     - name: Build scylla-cql
       run: cargo build --verbose --all-targets --manifest-path "scylla-cql/Cargo.toml" --features "full-serialization"
     - name: Build

.github/workflows/serverless.yaml

@@ -11,6 +11,7 @@ on:
 env:
   CARGO_TERM_COLOR: always
   RUST_BACKTRACE: full
+  RUSTFLAGS: -Dwarnings
 
 jobs:
   build:
@@ -31,8 +32,18 @@ jobs:
         run: rustup update
       - name: Check
         run: cargo check --verbose
-      - name: Run cloud example
-        run: cargo run --example cloud -- $HOME/.ccm/serverless/config_data.yaml
+      # Cloud-related feature sets.   
+      - name: Cargo check with unstable-cloud and openssl-x features
+        run: cargo check --all-targets --manifest-path "scylla/Cargo.toml" --features "unstable-cloud" --features "openssl-010"
+      - name: Cargo check with unstable-cloud and rustls-x features
+        run: cargo check --all-targets --manifest-path "scylla/Cargo.toml" --features "unstable-cloud" --features "rustls-023"
+      - name: Cargo check with unstable-cloud, openssl-x and rustls-x features
+        run: cargo check --all-targets --manifest-path "scylla/Cargo.toml" --features "unstable-cloud" --features "openssl-010" --features "rustls-023"
+
+      - name: Run cloud-openssl example
+        run: cargo run --example cloud-openssl -- $HOME/.ccm/serverless/config_data.yaml
+      - name: Run cloud-rustls example
+        run: cargo run --example cloud-rustls -- $HOME/.ccm/serverless/config_data.yaml
       - name: Run cloud tests
         run: CLOUD_CONFIG_PATH=$HOME/.ccm/serverless/config_data.yaml RUSTFLAGS="--cfg scylla_cloud_tests" RUST_LOG=trace cargo test --verbose
 

.github/workflows/tls.yml

@@ -26,14 +26,16 @@ jobs:
       run: rustup update
 
     - name: Check
-      run: cargo check --verbose --features "ssl"
+      run: cargo check --verbose --features "openssl-010" --features "rustls-023"
       working-directory: ${{env.working-directory}}
 
     - name: Start the cluster
       run: docker compose -f test/tls/docker-compose-tls.yml up -d
 
-    - name: Run tests
-      run: SCYLLA_URI=172.44.0.2 RUST_LOG=trace cargo run --example tls
+    - name: Run openssl example
+      run: SCYLLA_URI=172.44.0.2 RUST_LOG=trace cargo run --example tls-openssl
+    - name: Run rustls example
+      run: SCYLLA_URI=172.44.0.2 RUST_LOG=trace cargo run --example tls-rustls
 
     - name: Stop the cluster
       if: ${{ always() }}