Lower node.js requirement to 10.x

README.md

@@ -290,7 +290,7 @@ Vitastor with single-thread NBD on the same hardware:
   branch release-3.4, because there is a bug in upstream etcd which makes Vitastor OSDs fail to
   move PGs out of "starting" state if you have at least around ~500 PGs or so. The custom build
   will be unnecessary when etcd merges the fix: https://github.com/etcd-io/etcd/pull/12402.
-- Install node.js 12 or newer.
+- Install node.js 10 or newer.
 - Install gcc and g++ 9.x or later.
 - Clone https://yourcmc.ru/git/vitalif/vitastor/ with submodules.
 - Install QEMU 2.0+, get its source, begin to build it, stop the build and copy headers:

mon/mon.js

@@ -9,11 +9,8 @@ const LPOptimizer = require('./lp-optimizer.js');
 const stableStringify = require('./stable-stringify.js');
 const PGUtil = require('./PGUtil.js');
 
-// FIXME Split into several files
-class Mon
-{
 // FIXME document all etcd keys and config variables in the form of JSON schema or similar
-    static etcd_allow = new RegExp('^'+[
+const etcd_allow = new RegExp('^'+[
     'config/global',
     'config/node_placement',
     'config/pools',
@@ -26,9 +23,9 @@ class Mon
     'pg/stats/[1-9]\\d*/[1-9]\\d*',
     'pg/history/[1-9]\\d*/[1-9]\\d*',
     'stats',
-    ].join('$|^')+'$')
+].join('$|^')+'$');
 
-    static etcd_tree = {
+const etcd_tree = {
     config: {
         /* global: {
             // mon
@@ -213,8 +210,11 @@ class Mon
             incomplete: uint64_t,
         }, */
     },
-    }
+};
 
+// FIXME Split into several files
+class Mon
+{
     constructor(config)
     {
         // FIXME: Maybe prefer local etcd
@@ -1228,4 +1228,7 @@ function sha1hex(str)
     return hash.digest('hex');
 }
 
+Mon.etcd_allow = etcd_allow;
+Mon.etcd_tree = etcd_tree;
+
 module.exports = Mon;