fix DB dir and add local hostname

Dockerfile

@@ -19,7 +19,7 @@ COPY nsswitch.conf /etc/nsswitch.conf
 
 # default ENV
 ENV CSYNC2_AUTO=younger
-ENV CSYNC2_DB=/var/lib/csync2/favre.db
+ENV CSYNC2_DB_DIR=/var/lib/csync2
 ENV CSYNC2_SYSTEM_DIR=/run/csync2
 ENV FAVRE_DEBOUNCE_DELAY=2000
 

README.md

@@ -8,7 +8,7 @@ Favre is a wrapper around [Csync2](https://github.com/LINBIT/csync2/blob/master/
 ## Configuration
 Many of the configuration options available for Csync2 are available for Favre. These environmental variables will be rendered into a file `/run/csync2/csync2.cfg` prior to running `csync2`.
 
-`CSYNC2_DB`: advised to persist with docker volume, default `/var/lib/csync2/favre.db`
+`CSYNC2_DB_DIR`: advised to persist with docker volume, default `/var/lib/csync2`
 
 `CSYNC2_KEY_FILE`: mandatory, no default, should be stored as a docker secret
 

index.js

@@ -5,16 +5,17 @@ const { spawn, execFileSync } = require ('node:child_process');
 const watch = require ('node-watch');
 const Mustache = require ('mustache');
 const fs = require('node:fs');
+const os = require('node:os');
 
 if (!process.env.CSYNC2_KEY_FILE) {
     console.error ('CSYNC2_KEY_FILE must be set');
     process.exit (1);
 }
 
 // start the csync2 daemon
-const csync2d = spawn ('csync2', ['-ii', '-vvv', '-D', process.env.CSYNC2_DB_FILE], {
+const csync2d = spawn ('csync2', ['-ii', '-vvv', '-D', process.env.CSYNC2_DB_DIR], {
     stdio: ['ignore', 'inherit', 'inherit']
-})
+});
 
 // mustache things
 const cfgTemplate = `
@@ -80,7 +81,7 @@ async function sync () {
         taskLookups.push (dns.reverse (record.address));
     }
     // get resolvable task hosts
-    let hosts = [];
+    let hosts = [os.hostname()];
     let tasks = await Promise.all (taskLookups);
     for (let task of tasks) {
         hosts.push (task[0]);
@@ -94,7 +95,7 @@ async function sync () {
         console.log ('Writing config file', configFile);
         fs.writeFileSync (`${process.env.CSYNC2_SYSTEM_DIR}/csync2.cfg`, configFile);
         // execute the synchronization
-        execFileSync ('csync2', ['-x', '-r', '-vvv', '-D', process.env.CSYNC2_DB]);
+        execFileSync ('csync2', ['-x', '-r', '-vvv', '-D', process.env.CSYNC2_DB_DIR]);
 
     }
 }