🐬Containerize anki-sync-server (#3036)

* 🐬Containerize anki-sync-server

* rename directory to syncserver

* update contributors

* fix format

* format README

* - make ANKI_VERSION mandatory
- remove SYNC_USERS and stick unique vars
- update doc

* update doc

* update doc

* - remove hardcoded ANKI_VERSION arg
- update readme

CONTRIBUTORS

@@ -161,7 +161,7 @@ Kai Knoblich <kai@FreeBSD.org>
 Lucas Scharenbroch <lucasscharenbroch@gmail.com>
 Antonio Cavallo <a.cavallo@cavallinux.eu>
 Han Yeong-woo <han@yeongwoo.dev>
-
+Jean Khawand <jk@jeankhawand.com>
 ********************
 
 The text of the 3 clause BSD license follows:

docs/syncserver/Dockerfile

@@ -0,0 +1,32 @@
+FROM rust:1.76-alpine3.19 AS builder
+
+ARG ANKI_VERSION
+
+RUN apk update && apk add --no-cache build-base protobuf && rm -rf /var/cache/apk/*
+RUN cargo install --git https://github.com/ankitects/anki.git \
+    --tag ${ANKI_VERSION} \
+    --root /anki-server  \
+    anki-sync-server
+
+FROM alpine:3.19.1
+
+RUN adduser -D -h /home/anki anki
+
+COPY --from=builder /anki-server/bin/anki-sync-server /usr/local/bin/anki-sync-server
+
+
+RUN apk update && apk add --no-cache bash && rm -rf /var/cache/apk/*
+
+USER anki
+
+ENV SYNC_PORT=${SYNC_PORT:-"8080"}
+
+EXPOSE ${SYNC_PORT}
+
+CMD ["anki-sync-server"]
+
+# TODO - consider exposing endpoint /health to check on health cause currently it will return 404 error
+# HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+#     CMD wget -qO- http://localhost:${SYNC_PORT} || exit 1
+
+LABEL maintainer="Jean Khawand <jk@jeankhawand.com>"

docs/syncserver/README.md

@@ -0,0 +1,38 @@
+# Building and running Anki sync server in Docker
+
+This is an example Dockerfile contributed by an Anki user, which shows how you can run a self-hosted sync server,
+similar to what AnkiWeb.net offers.
+
+Building and running the sync server within a container has the advantage of fully isolating
+the build products and runtime dependencies from the rest of your system.
+
+## Requirements
+
+- [x] [Docker](https://docs.docker.com/get-started/)
+
+# Building image
+
+To proceed with building, you must specify the Anki version you want, by replacing `<version>` with something like `23.12.1`.
+
+```bash
+# Ensure you are running this command inside /docs/syncserver
+docker build --no-cache --build-arg ANKI_VERSION=<version> -t anki-sync-server .
+```
+
+# Run container
+
+Once done with build, you can proceed with running this image with the following command:
+
+```bash
+# this will create anki server
+docker run -d  -e "SYNC_USER1=admin:admin" -p 8080:8080 --name anki-sync-server anki-sync-server
+```
+
+However, if you want to have multiple users, you have to use the following approach:
+
+```bash
+# this will create anki server with multiple users
+docker run -d -e "SYNC_USER1=test:test" -e "SYNC_USER2=test2:test2" -p 8080:8080 --name anki-sync-server anki-sync-server
+```
+
+Moreover, you can pass additional env vars mentioned [here](https://docs.ankiweb.net/sync-server.html)