1 files changed, 30 insertions, 0 deletions
diff --git a/docker/netiquette/src/catalog/consul.mjs b/docker/netiquette/src/catalog/consul.mjs
new file mode 100644
index 0000000..655c61f
--- /dev/null
+++ b/docker/netiquette/src/catalog/consul.mjs
@@ -0,0 +1,30 @@
+'use strict'
+
+let l
+export default l = async (node, consul, log, notify) => {
+  const watch = consul.watch({ method: consul.catalog.node.services, options: {node: node}})
+
+  const extract_tags = data => 
+    data ? 
+      Object
+        .keys(data.Services)
+        .map(k => data.Services[k].Tags)
+        .reduce((acc, v) => [...acc, ...v], []) :
+      []
+
+  watch.on('error', err => {
+    console.error('error', err)
+  })
+
+  watch.on('change', async (data, res) => {
+    try {
+      const tags = extract_tags(data)
+      log(`[consul] new update, detected ${tags.length} tags`)
+      await notify(tags)
+    } catch(e) {
+      console.error('failed to notify target', e)
+    }
+  })
+  
+  log('[consul] initialized')
+}