feat: add docker setup

.dockerignore

@@ -0,0 +1,6 @@
+*
+!src/
+!migrations/
+!build.rs
+!Cargo.toml
+!Cargo.lock

Cargo.lock

@@ -376,6 +376,16 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
 
+[[package]]
+name = "errno"
+version = "0.3.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
+dependencies = [
+ "libc",
+ "windows-sys 0.60.2",
+]
+
 [[package]]
 name = "etcetera"
 version = "0.8.0"
@@ -1193,6 +1203,16 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4db69cba1110affc0e9f7bcd48bbf87b3f4fc7c61fc9155afd4c469eb3d6c1b"
+dependencies = [
+ "errno",
+ "libc",
+]
+
 [[package]]
 name = "signature"
 version = "2.2.0"
@@ -1561,6 +1581,7 @@ dependencies = [
  "libc",
  "mio",
  "pin-project-lite",
+ "signal-hook-registry",
  "socket2",
  "tokio-macros",
  "windows-sys 0.61.2",

Cargo.toml

@@ -19,7 +19,7 @@ dirs = "6"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 sqlx = { version = "0.8", features = ["runtime-tokio", "sqlite", "chrono", "migrate"] }
-tokio = { version = "1", features = ["rt", "macros"] }
+tokio = { version = "1", features = ["rt", "macros", "io-std", "io-util", "signal"] }
 
 [build-dependencies]
 anyhow = "1"

Dockerfile

@@ -0,0 +1,9 @@
+FROM rust:1.85 AS build
+WORKDIR /src
+COPY . .
+ENV SQLX_OFFLINE=true
+RUN cargo build --release --bin todo-mcp
+
+FROM gcr.io/distroless/cc-debian12
+COPY --from=build /src/target/release/todo-mcp /
+ENTRYPOINT ["/todo-mcp"]

README.md

@@ -62,10 +62,18 @@ todo-mcp tags
 todo-mcp purge
 ```
 
+## Docker
+
+```sh
+docker build -t local/todo-mcp .
+docker run --rm -v todo-mcp-data:/data -e TODO_DB=/data/todos.db local/todo-mcp --help
+```
+
+Data is persisted in the `todo-mcp-data` volume. See [Usage](#usage) for more commands.
+
 ## Claude Setup
 
-todo-mcp ships with an MCP server that lets Claude manage your todos. Add this
-to your Claude MCP config:
+### Native
 
 ```json
 {
@@ -78,5 +86,25 @@ to your Claude MCP config:
 }
 ```
 
+### Docker
+
+Build the image first (see [Docker](#docker)), then add to your Claude MCP config:
+
+```json
+{
+  "mcpServers": {
+    "todo": {
+      "command": "docker",
+      "args": [
+        "run", "-i", "--rm",
+        "-v", "todo-mcp-data:/data",
+        "-e", "TODO_DB=/data/todos.db",
+        "local/todo-mcp", "mcp-serve"
+      ]
+    }
+  }
+}
+```
+
 This gives Claude access to all todo operations — adding, listing, completing,
 editing, removing, and purging.

src/mcp.rs

@@ -1,8 +1,9 @@
-use std::io::{self, BufRead, Write};
+use std::io::{self, Write};
 
 use anyhow::Result;
 use serde::{Deserialize, Serialize};
 use serde_json::{json, Value};
+use tokio::io::{AsyncBufReadExt, BufReader};
 
 use crate::db::{self, ListFilters, Pool};
 use crate::model::Priority;
@@ -233,11 +234,19 @@ async fn dispatch(pool: &Pool, name: &str, args: &Value) -> Value {
 }
 
 pub async fn serve(pool: &Pool) -> Result<()> {
-    let stdin = io::stdin().lock();
+    let stdin = BufReader::new(tokio::io::stdin());
     let mut stdout = io::stdout().lock();
+    let mut lines = stdin.lines();
+
+    loop {
+        let line: String = tokio::select! {
+            line = lines.next_line() => match line? {
+                Some(line) => line,
+                None => break,
+            },
+            _ = tokio::signal::ctrl_c() => break,
+        };
 
-    for line in stdin.lines() {
-        let line = line?;
         if line.is_empty() {
             continue;
         }