Dockerize server. (#9)

* Dockerize server.

* Modify tag push condition.

* Move build image to cd workflow and change tag syntax.

.dockerignore

@@ -0,0 +1,12 @@
+# exclude everything
+*
+
+# include source files and configurations
+!/src
+!/config
+!/fixture
+!Cargo.lock
+!Cargo.toml
+
+# include test files so that we can run test if we want during the build step in Dockerfile
+!/tests

.github/workflows/cd.yml

@@ -0,0 +1,51 @@
+name: cd
+
+on:
+  push:
+    tags:
+      - "[v]?[0-9]+.[0-9]+.[0-9]+*"
+
+env:
+  CONTAINER_REGISTRY: ghcr.io
+  CONTAINER_IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build_and_publish_image:
+    name: Build and publish image
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - name: Wait for test workflow to succeed
+        uses: lewagon/wait-on-check-action@v1.3.1
+        with:
+          ref: ${{ github.ref }}
+          check-name: 'Build and test'
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          # How frequent (in seconds) this job will call GitHub API to check the status of the job specified at 'check-name'
+          wait-interval: 60
+
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.CONTAINER_REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker image
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.CONTAINER_REGISTRY }}/${{ env.CONTAINER_IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

.github/workflows/ci.yml

@@ -1,10 +1,14 @@
-name: Rust
+name: ci
 
 on:
   push:
-    branches: [main]
+    branches:
+      - main
+    tags:
+      - "[v]?[0-9]+.[0-9]+.[0-9]+*"
   pull_request:
-    branches: [main]
+    branches:
+      - main
 
 env:
   CARGO_TERM_COLOR: always
@@ -12,18 +16,20 @@ env:
 
 jobs:
   build_and_test:
+    name: Build and test
     if: ( ! github.event.pull_request.draft )
     runs-on: ubuntu-latest
-
     steps:
-      - uses: actions/checkout@v3
+      - name: Checkout repository
+        uses: actions/checkout@v3
 
-      - name: Stable
+      - name: Install stable rust toolchain
         uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: stable
 
-      - uses: Swatinem/rust-cache@v2.5.0
+      - name: Use caching
+        uses: Swatinem/rust-cache@v2.5.0
 
       - name: "Build"
         run: cargo build
@@ -35,9 +41,10 @@ jobs:
     name: Rustfmt
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - name: Checkout repository
+        uses: actions/checkout@v3
 
-      - name: Nightly with rustfmt
+      - name: Install nightly rust toolchain with rustfmt
         uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: nightly
@@ -50,9 +57,10 @@ jobs:
     name: Clippy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - name: Checkout repository
+        uses: actions/checkout@v3
 
-      - name: Stable
+      - name: Install stable rust toolchain
         uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: stable

.gitignore

@@ -25,3 +25,6 @@ Cargo.lock
 
 # vscode project specific settings
 .vscode/
+
+# logs
+*.log

Cargo.toml

@@ -7,7 +7,7 @@ edition = "2021"
 
 [dependencies]
 async-trait = "0.1.67"
-async-tungstenite = { version = "0.22.2", features = ["tokio-runtime", "tokio-native-tls"] }
+async-tungstenite = { version = "0.22.2", features = ["tokio-native-tls"] }
 axum = { version = "0.6.18", features = ["ws"]}
 axum-core = "0.3.4"
 axum-macros = "0.3.8"
@@ -27,8 +27,8 @@ serde_yaml = "0.9.21"
 sha1 = "0.10"
 structopt = "0.3.26"
 thiserror = "1"
-tlsn-notary = { git = "https://github.com/tlsnotary/tlsn" }
-tlsn-tls-core = { git = "https://github.com/tlsnotary/tlsn" }
+tlsn-notary = { git = "https://github.com/tlsnotary/tlsn", rev = "aaea854" }
+tlsn-tls-core = { git = "https://github.com/tlsnotary/tlsn", rev = "aaea854" }
 tokio = { version = "1", features = ["full"] }
 tokio-rustls = { version = "0.24.1" }
 tokio-util = { version = "0.7", features = ["compat"] }
@@ -40,7 +40,8 @@ uuid = { version = "1.4.1", features = ["v4", "fast-rng"] }
 ws_stream_tungstenite = { version = "0.10.0", features = ["tokio_io"] }
 
 [dev-dependencies]
-hyper-tls = "0.5.0"
-tls-server-fixture = { git = "https://github.com/tlsnotary/tlsn" }
-tlsn-prover = { git = "https://github.com/tlsnotary/tlsn" }
-tokio-native-tls = "0.3.1"
+# specify vendored feature to use statically linked copy of OpenSSL
+hyper-tls = { version = "0.5.0", features = ["vendored"] }
+tls-server-fixture = { git = "https://github.com/tlsnotary/tlsn", rev = "aaea854" }
+tlsn-prover = { git = "https://github.com/tlsnotary/tlsn", rev = "aaea854" }
+tokio-native-tls = { version = "0.3.1", features = ["vendored"] }

Dockerfile

@@ -0,0 +1,37 @@
+# Using rust:bookworm so that the builder image has OpenSSL 3.0 which is required by async-tungstenite, because
+#
+# (1) async-tungstenite dynamically links to the OS' OpenSSL by using openssl-sys crate (https://docs.rs/openssl/0.10.56/openssl/#automatic)
+#
+# (2) async-tungstenite does not utilise the "vendored" feature for its dependency crates, i.e.
+# tokio-native-tls, tungstenite and native-tls. The "vendored" feature would have statically linked
+# to a OpenSSL copy instead of dynamically link to the OS' OpenSSL (https://docs.rs/openssl/0.10.56/openssl/#vendored)
+# — reported an issue here (https://github.com/sdroege/async-tungstenite/issues/119)
+#
+# (3) We want to use ubuntu:latest (22.04) as the runner image, which (only) has OpenSSL 3.0, because 
+# OpenSSL 1.1.1 is reaching EOL in Sept 2023 (https://www.openssl.org/blog/blog/2023/03/28/1.1.1-EOL/)
+#
+# (4) Therefore, we need the builder image to have the same OpenSSL version, else the built binary will 
+# try to dynamically link to a different (non-existing) version in the runner image
+#
+# (5) rust:latest is still using bullseye somehow which only has OpenSSL 1.1.1
+FROM rust:bookworm AS builder
+WORKDIR /usr/src/notary-server
+COPY . .
+RUN cargo install --path .
+
+FROM ubuntu:latest
+WORKDIR /root/.notary-server
+# Install pkg-config and libssl-dev for async-tungstenite to use (as explained above)
+RUN apt-get update && apt-get -y upgrade && apt-get install -y --no-install-recommends \
+  pkg-config \
+  libssl-dev \
+  && apt-get clean \
+  && rm -rf /var/lib/apt/lists/*
+# Copy default fixture folder for default usage
+COPY --from=builder /usr/src/notary-server/fixture ./fixture
+# Copy default config folder for default usage
+COPY --from=builder /usr/src/notary-server/config ./config
+COPY --from=builder /usr/local/cargo/bin/notary-server /usr/local/bin/notary-server
+# Label to link this image with the repository in Github Container Registry (https://docs.github.com/en/packages/learn-github-packages/connecting-a-repository-to-a-package#connecting-a-repository-to-a-container-image-using-the-command-line)
+LABEL org.opencontainers.image.source=https://github.com/tlsnotary/notary-server
+CMD [ "notary-server" ]

README.md

@@ -11,16 +11,59 @@ This project is currently under active development and should not be used in pro
 
 ---
 ## Running the server
-1. Configure the server setting in this [file](./config.yaml) — refer [here](./src/config.rs) for more information on the definition of the setting parameters.
-2. Start the server by running following in a terminal at the top level of this project.
+### Using Cargo
+1. Configure the server setting in this config [file](./config/config.yaml) — refer [here](./src/config.rs) for more information on the definition of the setting parameters.
+2. Start the server by running the following in a terminal at the root of this repository.
 ```bash
-cargo run
+cargo run --release
 ```
 3. To use a config file from a different location, run the following command to override the default config file location.
 ```bash
-cargo run -- --config-file <path-to-new-config-file>
+cargo run --release -- --config-file <path-of-new-config-file>
 ```
 
+### Using Docker
+There are two ways to obtain the notary server's Docker image:
+- [GitHub](#obtaining-the-image-via-github)
+- [Building from source](#building-from-source)
+
+#### GitHub
+1. Obtain the latest image with:
+```bash
+docker pull ghcr.io/tlsnotary/notary-server:latest
+```
+2. Run the docker container with:
+```bash
+docker run --init -p 127.0.0.1:7047:7047 ghcr.io/tlsnotary/notary-server:latest
+```
+3. If you want to change the default configuration, create a `config` folder locally, that contains a `config.yaml`, whose content follows the format of the default config file [here](./config/config.yaml).
+4. Instead of step 2, run the docker container with the following (remember to change the port mapping if you have changed that in the config):
+```bash
+docker run --init -p 127.0.0.1:7047:7047 -v <your config folder path>:/root/.notary-server/config ghcr.io/tlsnotary/notary-server:latest
+```
+
+#### Building from source
+1. Configure the server setting in this config [file](./config/config.yaml).
+2. Build the docker image by running the following in a terminal at the root of this repository.
+```bash
+docker build . -t notary-server:local
+```
+3. Run the docker container and specify the port specified in the config file, e.g. for the default port 7047
+```bash
+docker run --init -p 127.0.0.1:7047:7047 notary-server:local
+```
+
+### Using different key/cert for TLS or/and notarization with Docker
+1. Instead of changing the key/cert file path(s) in the config file, create a folder containing your key/cert by following the folder structure [here](./fixture/).
+2. When launching the docker container, mount your folder onto the docker container at the relevant path prefixed by `/root/.notary-server`.
+- Example 1: Using different key/cert for both TLS and notarization:
+```bash
+docker run --init -p 127.0.0.1:7047:7047 -v <your folder path>:/root/.notary-server/fixture notary-server:local
+```
+- Example 2: Using different key for notarization (your folder should only contain `notary.key`):
+```bash
+docker run --init -p 127.0.0.1:7047:7047 -v <your folder path>:/root/.notary-server/fixture/notary notary-server:local
+```
 ---
 ## API
 All APIs are TLS-protected, hence please use `https://` or `wss://`.

config.yaml

@@ -1,17 +0,0 @@
-server:
-  name: "notary-server"
-  domain: "127.0.0.1"
-  port: 7047
-
-notarization:
-  max-transcript-size: 16384
-
-tls-signature:
-  private-key-pem-path: "./src/fixture/tls/notary.key"
-  certificate-pem-path: "./src/fixture/tls/notary.crt"
-
-notary-signature:
-  private-key-pem-path: "./src/fixture/notary/notary.key"
-
-tracing:
-  default-level: DEBUG

config/config.yaml

@@ -0,0 +1,17 @@
+server:
+  name: "notary-server"
+  host: "0.0.0.0"
+  port: 7047
+
+notarization:
+  max-transcript-size: 16384
+
+tls-signature:
+  private-key-pem-path: "./fixture/tls/notary.key"
+  certificate-pem-path: "./fixture/tls/notary.crt"
+
+notary-signature:
+  private-key-pem-path: "./fixture/notary/notary.key"
+
+tracing:
+  default-level: DEBUG

src/config.rs

@@ -9,7 +9,7 @@ pub struct NotaryServerProperties {
     pub notarization: NotarizationProperties,
     /// File path of private key and certificate (in PEM format) used for establishing TLS with prover
     pub tls_signature: TLSSignatureProperties,
-    /// File path of private key (in PEM format) used to sign the notarisation
+    /// File path of private key (in PEM format) used to sign the notarization
     pub notary_signature: NotarySignatureProperties,
     /// Setting for logging/tracing
     pub tracing: TracingProperties,
@@ -27,7 +27,7 @@ pub struct NotarizationProperties {
 pub struct ServerProperties {
     /// Used for testing purpose
     pub name: String,
-    pub domain: String,
+    pub host: String,
     pub port: u16,
 }
 

src/domain/cli.rs

@@ -5,6 +5,6 @@ use structopt::StructOpt;
 #[structopt(name = "Notary Server")]
 pub struct CliFields {
     /// Configuration file location
-    #[structopt(long, default_value = "./config.yaml")]
+    #[structopt(long, default_value = "./config/config.yaml")]
     pub config_file: String,
 }

src/server.rs

@@ -52,7 +52,7 @@ pub async fn run_server(config: &NotaryServerProperties) -> Result<(), NotarySer
     let tls_config = Arc::new(server_config);
 
     let notary_address = SocketAddr::new(
-        IpAddr::V4(config.server.domain.parse().map_err(|err| {
+        IpAddr::V4(config.server.host.parse().map_err(|err| {
             eyre!("Failed to parse notary host address from server config: {err}")
         })?),
         config.server.port,
@@ -176,8 +176,8 @@ mod test {
     #[tokio::test]
     async fn test_load_notary_key_and_cert() {
         let config = TLSSignatureProperties {
-            private_key_pem_path: "./src/fixture/tls/notary.key".to_string(),
-            certificate_pem_path: "./src/fixture/tls/notary.crt".to_string(),
+            private_key_pem_path: "./fixture/tls/notary.key".to_string(),
+            certificate_pem_path: "./fixture/tls/notary.crt".to_string(),
         };
         let result: Result<(PrivateKey, Vec<Certificate>)> = load_tls_key_and_cert(&config).await;
         assert!(result.is_ok(), "Could not load tls private key and cert");
@@ -186,7 +186,7 @@ mod test {
     #[tokio::test]
     async fn test_load_notary_signing_key() {
         let config = NotarySignatureProperties {
-            private_key_pem_path: "./src/fixture/notary/notary.key".to_string(),
+            private_key_pem_path: "./fixture/notary/notary.key".to_string(),
         };
         let result: Result<SigningKey> = load_notary_signing_key(&config).await;
         assert!(result.is_ok(), "Could not load notary private key");

src/util.rs

@@ -17,7 +17,7 @@ mod test {
 
     #[test]
     fn test_parse_config_file() {
-        let location = "./config.yaml";
+        let location = "./config/config.yaml";
         let config: Result<NotaryServerProperties> = parse_config_file(location);
         assert!(
             config.is_ok(),

tests/integration_test.rs

@@ -27,25 +27,25 @@ use notary_server::{
     ServerProperties, TLSSignatureProperties, TracingProperties,
 };
 
-const NOTARY_CA_CERT_PATH: &str = "./src/fixture/tls/rootCA.crt";
-const NOTARY_CA_CERT_BYTES: &[u8] = include_bytes!("../src/fixture/tls/rootCA.crt");
+const NOTARY_CA_CERT_PATH: &str = "./fixture/tls/rootCA.crt";
+const NOTARY_CA_CERT_BYTES: &[u8] = include_bytes!("../fixture/tls/rootCA.crt");
 
 async fn setup_config_and_server(sleep_ms: u64, port: u16) -> NotaryServerProperties {
     let notary_config = NotaryServerProperties {
         server: ServerProperties {
             name: "tlsnotaryserver.io".to_string(),
-            domain: "127.0.0.1".to_string(),
+            host: "127.0.0.1".to_string(),
             port,
         },
         notarization: NotarizationProperties {
             max_transcript_size: 1 << 14,
         },
         tls_signature: TLSSignatureProperties {
-            private_key_pem_path: "./src/fixture/tls/notary.key".to_string(),
-            certificate_pem_path: "./src/fixture/tls/notary.crt".to_string(),
+            private_key_pem_path: "./fixture/tls/notary.key".to_string(),
+            certificate_pem_path: "./fixture/tls/notary.crt".to_string(),
         },
         notary_signature: NotarySignatureProperties {
-            private_key_pem_path: "./src/fixture/notary/notary.key".to_string(),
+            private_key_pem_path: "./fixture/notary/notary.key".to_string(),
         },
         tracing: TracingProperties {
             default_level: "DEBUG".to_string(),
@@ -90,10 +90,10 @@ async fn test_tcp_prover() {
         .with_no_client_auth();
     let notary_connector = TlsConnector::from(Arc::new(client_notary_config));
 
-    let notary_domain = notary_config.server.domain.clone();
+    let notary_host = notary_config.server.host.clone();
     let notary_port = notary_config.server.port;
     let notary_socket = tokio::net::TcpStream::connect(SocketAddr::new(
-        IpAddr::V4(notary_domain.parse().unwrap()),
+        IpAddr::V4(notary_host.parse().unwrap()),
         notary_port,
     ))
     .await
@@ -122,9 +122,9 @@ async fn test_tcp_prover() {
     })
     .unwrap();
     let request = Request::builder()
-        .uri(format!("https://{notary_domain}:{notary_port}/session"))
+        .uri(format!("https://{notary_host}:{notary_port}/session"))
         .method("POST")
-        .header("Host", notary_domain.clone())
+        .header("Host", notary_host.clone())
         // Need to specify application/json for axum to parse it as json
         .header("Content-Type", "application/json")
         .body(Body::from(payload))
@@ -150,9 +150,9 @@ async fn test_tcp_prover() {
 
     // Send notarization request via HTTP, where the underlying TCP connection will be extracted later
     let request = Request::builder()
-        .uri(format!("https://{notary_domain}:{notary_port}/notarize"))
+        .uri(format!("https://{notary_host}:{notary_port}/notarize"))
         .method("GET")
-        .header("Host", notary_domain)
+        .header("Host", notary_host)
         .header("Connection", "Upgrade")
         // Need to specify this upgrade header for server to extract tcp connection later
         .header("Upgrade", "TCP")
@@ -259,7 +259,7 @@ async fn test_tcp_prover() {
 async fn test_websocket_prover() {
     // Notary server configuration setup
     let notary_config = setup_config_and_server(100, 7049).await;
-    let notary_domain = notary_config.server.domain.clone();
+    let notary_host = notary_config.server.host.clone();
     let notary_port = notary_config.server.port;
 
     // Connect to the notary server via TLS-WebSocket
@@ -291,9 +291,9 @@ async fn test_websocket_prover() {
     .unwrap();
 
     let request = Request::builder()
-        .uri(format!("https://{notary_domain}:{notary_port}/session"))
+        .uri(format!("https://{notary_host}:{notary_port}/session"))
         .method("POST")
-        .header("Host", notary_domain.clone())
+        .header("Host", notary_host.clone())
         // Need to specify application/json for axum to parse it as json
         .header("Content-Type", "application/json")
         .body(Body::from(payload))
@@ -324,8 +324,8 @@ async fn test_websocket_prover() {
     // client while using its high level request function — there does not seem to have a crate that can let you
     // make a request without establishing TCP connection where you can claim the TCP connection later after making the request
     let request = http::Request::builder()
-        .uri(format!("wss://{notary_domain}:{notary_port}/notarize"))
-        .header("Host", notary_domain.clone())
+        .uri(format!("wss://{notary_host}:{notary_port}/notarize"))
+        .header("Host", notary_host.clone())
         .header("Sec-WebSocket-Key", uuid::Uuid::new_v4().to_string())
         .header("Sec-WebSocket-Version", "13")
         .header("Connection", "Upgrade")