Adding instruction details

.env-sample

@@ -0,0 +1,17 @@
+# Server
+export FILESYNC_MODE=server
+export FILESYNC_PORT=6776
+export FILESYNC_IP=0.0.0.0
+export FILESYNC_PATH=/tmp/share
+
+# Client
+export FILESYNC_MODE=client
+export FILESYNC_PORT=6776
+export FILESYNC_IP=127.0.0.1
+export FILESYNC_PATH=/tmp/test1
+
+# Cleanup
+unset FILESYNC_MODE
+unset FILESYNC_PORT
+unset FILESYNC_IP
+unset FILESYNC_PATH

Dockerfile

@@ -8,6 +8,6 @@ RUN tar -zxvf /tmp/filesync -C /usr/local/bin \
   && mv /usr/local/bin/filesync-linux-amd64 /usr/local/bin/filesync \
   && chmod +x /usr/local/bin/filesync \
   && rm /tmp/filesync
-RUN mkdir /share
+  && mkdir /share
 
 ENTRYPOINT ["/usr/local/bin/filesync"]

README.md

@@ -26,7 +26,7 @@ go run gsync.go gsync/server.json
 go run gsync.go gsync/client.json
 ```
 
-Alternatively, set environment variables (examples in [/.env](/.env)):
+Alternatively, set environment variables (examples in [/.env-sample](/.env-sample)):
 
 ```sh
 # Server
@@ -51,6 +51,38 @@ make dev-image
 make image
 ```
 
+## Options
+
+Configuration can be defined by JSON or ENV variables. Priority (from high to low) is JSON config file, ENV variables, then defaults. See the `Init()` method in [vars.go](/vars/vars.go) for details.
+
+### JSON Configuration
+
+Sample:
+
+```
+{
+  "mode": "client",
+    "ip": "127.0.0.1",
+    "port": 6776,
+    "monitors": {
+        "home_elgs_desktop_a": "/home/elgs/Desktop/c",
+        "home_elgs_desktop_b": "/home/elgs/Desktop/d"
+    }
+}
+```
+
+- `mode`: "client" or "server"
+- `ip`: Address or hostname of server
+- `port`: Port for traffic
+- `monitors`: key-value pairs of directories to watch. The "key" of these gets treated as the unique directory to be synchronized, while the "value" is the file system location for this key.
+
+### ENVironment Variable Configuration
+
+- `FILESYNC_MODE`: "client" or "server"
+- `FILESYNC_PORT`
+- `FILESYNC_IP`
+- `FILESYNC_PATH`: A singular directory to watch. If multiple directories are required, use the JSON config. If not specified, defaults to `/share/`.
+
 ## Demo
 
 The [docker-compose.yml](/docker-compose.yml) details a setup with a server and 2 clients. It will create a `./demo/` directory with 3 subfolders: `server`, `client1`, and `client2`. Each subfolder is volumed as `/share/` inside each container.

docker-compose.yml

@@ -6,7 +6,7 @@ services:
     tty: true
     stdin_open: true
     labels:
-      io.rancher.scheduler.affinity:host_label: rgon=primary
+      io.rancher.scheduler.affinity:host_label: filesync=server
     environment:
       FILESYNC_MODE: 'server'
       FILESYNC_PATH: '/share'
@@ -20,7 +20,7 @@ services:
       - fs-server:fs-server
     labels:
       io.rancher.scheduler.global: 'true'
-      io.rancher.scheduler.affinity:host_label_ne: rgon=primary
+      io.rancher.scheduler.affinity:host_label_ne: filesync=server
     environment:
       FILESYNC_MODE: 'client'
       FILESYNC_IP: 'fs-server'
@@ -35,7 +35,7 @@ services:
       - fs-server:fs-server
     labels:
       io.rancher.scheduler.global: 'true'
-      io.rancher.scheduler.affinity:host_label_ne: rgon=primary
+      io.rancher.scheduler.affinity:host_label_ne: filesync=server
     environment:
       FILESYNC_MODE: 'client'
       FILESYNC_IP: 'fs-server'