Adds Dockerfile (#317)

* Adds Dockerfile to repo with README updates

Signed-off-by: Jordan Rash <[email protected]>

Dockerfile

@@ -0,0 +1,22 @@
+FROM golang AS nexbuilder
+WORKDIR /nex
+COPY go.mod ./
+RUN go mod download
+COPY . .
+RUN go build -o nexcli ./nex
+
+FROM golang AS agentbuilder
+WORKDIR /agent
+COPY go.mod ./
+RUN go mod download
+COPY . .
+RUN go build -o nexagent ./agent/cmd/nex-agent
+
+FROM debian:12-slim
+RUN apt-get update \
+    && apt-get install -y ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+WORKDIR /
+COPY --from=nexbuilder /nex/nexcli /usr/local/bin/nex
+COPY --from=agentbuilder /agent/nexagent /usr/local/bin/nex-agent
+ENTRYPOINT ["nex"]

README.md

@@ -105,5 +105,23 @@ In order to use your NATS context with Nex, you will need to set the `XDG_CONFIG
 XDG_CONFIG_HOME=/home/jordan/.config sudo -E nex node up --loglevel debug --context default
 ```
 
+## Running a nex node in Docker
+We provide a Dockerfile that can be used for local development.  If you choose to run a nex node in docker, it MUST run in no-sandbox mode.
+```bash
+docker build -t nex .
+
+docker network create nex
+
+#start a nats server
+docker run --net nex --rm -d --name nats-server nats --js
+
+# ‼️ make sure you edit ./examples/nodeconfigs/simple.json to reflect the setting `no_sandbox: true` ‼️
+# start a nex node
+docker run --net nex --rm --name nex -v ./examples/nodeconfigs:/conf nex node up --config /conf/simple.json -s nats://nats-server:4222
+
+# interact with your node
+docker run --net nex --rm nex node ls -s nats://nats-server:4222
+```
+
 ## Contributing
 For information on how to contribute to Nex, please read our [contributing](./CONTRIBUTING.md) guide.