containerize

.dockerignore

@@ -0,0 +1,34 @@
+# Include any files or directories that you don't want to be copied to your
+# container here (e.g., local build artifacts, temporary files, etc.).
+#
+# For more help, visit the .dockerignore file reference guide at
+# https://docs.docker.com/go/build-context-dockerignore/
+
+**/.DS_Store
+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/bin
+**/charts
+**/docker-compose*
+**/compose.y*ml
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+LICENSE
+README.md
+db
+omada

Dockerfile

@@ -0,0 +1,64 @@
+# syntax=docker/dockerfile:1
+
+ARG PROJECT=examples/groups.fiatjaf.com
+
+# Create a stage for building the application.
+ARG GO_VERSION=1.23.4
+FROM --platform=$BUILDPLATFORM golang:${GO_VERSION} AS build
+WORKDIR /src
+
+ARG PROJECT 
+# Download dependencies as a separate step to take advantage of Docker's caching.
+# Leverage a cache mount to /go/pkg/mod/ to speed up subsequent builds.
+# Leverage bind mounts to go.sum and go.mod to avoid having to copy them into
+# the container.
+RUN --mount=type=cache,target=/go/pkg/mod/ \
+    --mount=type=bind,source=go.mod,target=go.mod \
+    go mod download -x
+
+# This is the architecture you're building for, which is passed in by the builder.
+# Placing it here allows the previous steps to be cached across architectures.
+ARG TARGETARCH
+
+# Build the application.
+# Leverage a cache mount to /go/pkg/mod/ to speed up subsequent builds.
+# Leverage a bind mount to the current directory to avoid having to copy the
+# source code into the container.
+RUN --mount=type=cache,target=/go/pkg/mod/ \
+    --mount=type=bind,target=. \
+    CGO_ENABLED=1 GOARCH=$TARGETARCH go build -o /bin/server ./${PROJECT}
+
+################################################################################
+# Create a new stage for running the application that contains the minimal
+# runtime dependencies for the application.
+FROM debian:bookworm-slim AS final
+
+RUN --mount=type=cache,target=/var/cache/apt \
+    apt-get update && \
+    apt-get install -y --no-install-recommends \
+        ca-certificates \
+        tzdata \
+        libc6 \
+        && \
+    rm -rf /var/lib/apt/lists/*
+
+# Create a non-privileged user that the app will run under.
+# See https://docs.docker.com/go/dockerfile-user-best-practices/
+# ARG UID=10001
+# RUN adduser \
+#     --disabled-password \
+#     --gecos "" \
+#     --home "/nonexistent" \
+#     --shell "/sbin/nologin" \
+#     --no-create-home \
+#     --uid "${UID}" \
+#     appuser
+# USER appuser
+
+COPY --from=build /bin/server /app/
+
+RUN chmod ugo+x /app/server
+
+EXPOSE 4200
+
+CMD [ "/app/server" ]

README.Docker.md

@@ -0,0 +1,22 @@
+### Building and running your application
+
+When you're ready, start your application by running:
+`docker compose up --build`.
+
+Your application will be available at http://localhost:4200.
+
+### Deploying your application to the cloud
+
+First, build your image, e.g.: `docker build -t myapp .`.
+If your cloud uses a different CPU architecture than your development
+machine (e.g., you are on a Mac M1 and your cloud provider is amd64),
+you'll want to build the image for that platform, e.g.:
+`docker build --platform=linux/amd64 -t myapp .`.
+
+Then, push it to your registry, e.g. `docker push myregistry.com/myapp`.
+
+Consult Docker's [getting started](https://docs.docker.com/go/get-started-sharing/)
+docs for more detail on building and pushing.
+
+### References
+* [Docker's Go guide](https://docs.docker.com/language/golang/)

compose.yaml

@@ -0,0 +1,21 @@
+services:
+  relay29:
+    build:
+      context: .
+      target: final
+      args:
+        - PROJECT=examples/groups.fiatjaf.com # OPTIONAL
+    volumes:
+      - ./db:/db
+    environment:
+      - DOMAIN=groups.example.com
+      - RELAY_NAME=Groups Relay
+      - RELAY_PRIVKEY=XXXXX
+      - DATABASE_PATH=/db
+      - PORT=4200
+      # OPTIONAL
+      - RELAY_DESCRIPTION=Groups Relay
+      # - RELAY_CONTACT=contact@example.com
+      # - RELAY_ICON=https://example.com/icon.png
+    ports:
+      - 4200:4200