From a93bd70c5ab1945d2ccc50250f769034523a7bff Mon Sep 17 00:00:00 2001
From: archipelago <archipelago@localhost>
Date: Sat, 18 Jul 2026 19:55:06 -0400
Subject: [PATCH] fix(electrumx): probe bitcoin-knots/bitcoin-core for the
 daemon host instead of hardcoding knots
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The manifest baked bitcoin-knots:8332 into DAEMON_URL. Nodes whose
backend runs under the bitcoin-core name (and any future variant
without a knots DNS alias) left electrumx permanently disconnected —
'connection problem' forever and a block index stuck at 0. The
startup script now picks the first backend name that resolves on
archy-net and falls back to bitcoin-knots.

Catalog regenerated (catalog manifests override disk ones fleet-wide);
this regen also embeds the recently-merged barkd/Ark manifest for the
first time.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---
 apps/electrumx/manifest.yml |  9 ++++-
 releases/app-catalog.json   | 76 ++++++++++++++++++++++++++++++++++++-
 2 files changed, 82 insertions(+), 3 deletions(-)

diff --git a/apps/electrumx/manifest.yml b/apps/electrumx/manifest.yml
index 36741b38..bdbb7e9b 100644
--- a/apps/electrumx/manifest.yml
+++ b/apps/electrumx/manifest.yml
@@ -10,9 +10,16 @@ app:
     network: archy-net
     data_uid: "1000:1000"
     entrypoint: ["sh", "-lc"]
+    # The bitcoin backend container is bitcoin-knots OR bitcoin-core depending
+    # on which version the node runs (multi-version switch) — probe which name
+    # resolves on archy-net instead of hardcoding knots, which left electrumx
+    # permanently disconnected (block index 0) on core nodes.
     custom_args:
       - >-
-        export DAEMON_URL="http://archipelago:$(printenv BITCOIN_RPC_PASS)@bitcoin-knots:8332/";
+        for h in bitcoin-knots bitcoin-core; do
+        if getent hosts "$h" >/dev/null 2>&1; then BTC_HOST="$h"; break; fi;
+        done;
+        export DAEMON_URL="http://archipelago:$(printenv BITCOIN_RPC_PASS)@${BTC_HOST:-bitcoin-knots}:8332/";
         exec electrumx_server
     secret_env:
       - key: BITCOIN_RPC_PASS
diff --git a/releases/app-catalog.json b/releases/app-catalog.json
index 720df197..b576a51c 100644
--- a/releases/app-catalog.json
+++ b/releases/app-catalog.json
@@ -1,6 +1,6 @@
 {
   "schema": 1,
-  "updated": "2026-07-10",
+  "updated": "2026-07-18",
   "apps": {
     "adguardhome": {
       "version": "v0.107.55",
@@ -333,6 +333,78 @@
         }
       }
     },
+    "barkd": {
+      "version": "0.3.0",
+      "manifest": {
+        "app": {
+          "id": "barkd",
+          "name": "Ark Wallet",
+          "version": "0.3.0",
+          "description": "Ark protocol wallet daemon (barkd). Lets the node hold self-custodial off-chain bitcoin via an Ark server; the wallet talks to it over a local REST API. Signet by default while Ark matures.",
+          "container": {
+            "image": "146.59.87.168:3000/lfg2025/barkd:0.3.0",
+            "pull_policy": "if-not-present",
+            "network": "archy-net",
+            "generated_secrets": [
+              {
+                "name": "barkd-secret",
+                "kind": "hex32"
+              }
+            ],
+            "secret_env": [
+              {
+                "key": "BARKD_SECRET",
+                "secret_file": "barkd-secret"
+              }
+            ],
+            "data_uid": "1000:1000"
+          },
+          "dependencies": [
+            {
+              "storage": "1Gi"
+            }
+          ],
+          "resources": {
+            "cpu_limit": 1,
+            "memory_limit": "512Mi",
+            "disk_limit": "1Gi"
+          },
+          "security": {
+            "readonly_root": true,
+            "network_policy": "bridge"
+          },
+          "ports": [
+            {
+              "host": 3535,
+              "container": 3535,
+              "protocol": "tcp"
+            }
+          ],
+          "volumes": [
+            {
+              "type": "bind",
+              "source": "/var/lib/archipelago/barkd",
+              "target": "/data",
+              "options": [
+                "rw"
+              ]
+            }
+          ],
+          "environment": [
+            "BARKD_DATADIR=/data",
+            "BARKD_BIND_HOST=0.0.0.0",
+            "BARKD_BIND_PORT=3535"
+          ],
+          "health_check": {
+            "type": "tcp",
+            "endpoint": "localhost:3535",
+            "interval": "30s",
+            "timeout": "5s",
+            "retries": 3
+          }
+        }
+      }
+    },
     "bitcoin-core": {
       "version": "latest",
       "manifest": {
@@ -1085,7 +1157,7 @@
               "-lc"
             ],
             "custom_args": [
-              "export DAEMON_URL=\"http://archipelago:$(printenv BITCOIN_RPC_PASS)@bitcoin-knots:8332/\"; exec electrumx_server"
+              "for h in bitcoin-knots bitcoin-core; do if getent hosts \"$h\" >/dev/null 2>&1; then BTC_HOST=\"$h\"; break; fi; done; export DAEMON_URL=\"http://archipelago:$(printenv BITCOIN_RPC_PASS)@${BTC_HOST:-bitcoin-knots}:8332/\"; exec electrumx_server"
             ],
             "secret_env": [
               {