Add Dockerfile and first attempt at CI

.drone.yml

@@ -0,0 +1,40 @@
+kind: pipeline
+name: default
+
+steps:
+- name: docker  
+  image: plugins/docker
+  settings:
+    registry:
+      from_secret: docker-registry
+    username:
+      from_secret: docker-username
+    password:
+      from_secret: docker-password
+    repo: public/pe1chl-elproxy
+    tags:
+    - latest
+
+---
+
+kind: secret
+name: docker-registry
+get:
+  path: kv/data/drone-ci/yaakov/docker-registry
+  name: registry
+
+---
+
+kind: secret
+name: docker-username
+get:
+  path: kv/data/drone-ci/yaakov/docker-registry
+  name: username
+
+---
+
+kind: secret
+name: docker-password
+get:
+  path: kv/data/drone-ci/yaakov/docker-registry
+  name: password

Dockerfile

@@ -0,0 +1,10 @@
+FROM alpine:latest as build
+RUN apk --no-cache add make gcc musl-dev linux-headers nettle-dev
+WORKDIR /build
+COPY . /build
+RUN make
+
+FROM alpine:latest as runtime
+RUN apk --no-cache add nettle
+COPY --from=build /build/elproxy /app/elproxy
+CMD [ "sh", "-c", "/app/elproxy $ELPROXY_CONFIG $ELPROXY_DEBUG" ]

README

@@ -1,4 +1,4 @@
-Echolink Proxy/Relay server - PE1CHL
+# Echolink Proxy/Relay server - PE1CHL
 
 This Echolink Proxy/Relay server can run multiple echolink proxies and/or
 relays on a single machine, provided it has multiple IPv4 addresses on the
@@ -114,3 +114,9 @@ graph the statistiscs like number of used proxies.
 When this file disappears for no apparent reason, it probably is systemd
 doing it.
 Configure RemoveIPC=no in /etc/systemd/logind.conf to keep it at bay.
+
+# Docker image instructions - VK2BSD
+To run this container, mount your configuration file, then set the following environment variables:
+- `ELPROXY_CONFIG` to the path to your configuration file
+- `ELPROXY_DEBUG` (optional) to a non-zero value to enable debug output logging
+Make sure to set `Daemonize=0` in your configuration file, otherwise the container will simply exit.