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fix(portainer): repair same-node Git routing with recoverable network migration

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archipelago
2026-09-30 09:57:25 -04:00
parent 6ac26f637c
commit eda28c4cd6
16 changed files with 856 additions and 193 deletions
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core/container/src/podman_client.rs
+29 -53
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@@ -310,59 +310,7 @@ impl PodmanClient {
);
continue;
}
// Honour the manifest's protocol (default tcp). netbird's STUN port
// is 3478/udp; forcing tcp here would publish the wrong protocol and
// silently break relay discovery.
let protocol = match port.protocol.to_ascii_lowercase().as_str() {
"udp" => "udp",
"sctp" => "sctp",
_ => "tcp",
};
// Effective bind. A gated port with no declared bind would
// publish 0.0.0.0 — the app would own every host address, which
// is both the exposure itself and the reason the daemon's app
// gate cannot bind those addresses to authenticate them. Pin it
// to loopback so the gate can take the external addresses.
//
// Doing it HERE, at container creation, is the point: the pin and
// the gate's takeover then both come from the daemon and cannot
// disagree. The earlier attempt put this decision in manifest
// data instead, and a node whose manifests lagged the binary
// published Bitcoin's loopback-only RPC across the LAN
// (test node, 2026-08-03).
//
// A port that already declares a bind is never overridden — that
// is exactly what keeps `bind: 127.0.0.1` ports host-local and
// leaves `auth: none` protocol ports (LND gRPC/REST, electrum)
// published as they are, so remote wallets keep working.
// NOTE: the daemon deliberately does NOT rewrite this. Pinning a
// published port to loopback is how an app hands its external
// addresses to the gate, but it belongs in the manifest, not in
// daemon-side inference:
//
// * `bind` is already honoured by every publish path (here and
// in package::install), so a manifest edit needs no code.
// * inference here would cover only THIS path — proven on
// a test node, where a recreate went through another one and
// the pin never applied.
// * and inferring from an ABSENT field is what republished
// Bitcoin's loopback RPC across the LAN, and came within one
// container-recreate of pinning LND's gRPC/REST and breaking
// every remote wallet.
//
// So the migration ships as `bind: 127.0.0.1` in the signed
// catalog. Verified 2026-08-03 that a disk-only manifest edit is
// overridden by the catalog, which is precisely why the catalog is
// the right and only place to carry it.
let mut mapping = serde_json::json!({
"container_port": port.container,
"host_port": port.host,
"protocol": protocol,
});
if !port.bind.is_empty() {
mapping["host_ip"] = serde_json::json!(port.bind);
}
port_mappings.push(mapping);
port_mappings.push(podman_publish_mapping(port));
}
let mut mounts = Vec::new();
@@ -751,6 +699,25 @@ pub fn image_uses_insecure_registry(image: &str) -> bool {
.is_some_and(|host| INSECURE_REGISTRY_HOSTS.contains(&host))
}
// Keep the explicitly declared bind and transport identical to Quadlet. The
// app gate owns external listeners; container publication must not bypass it.
fn podman_publish_mapping(port: &crate::manifest::PortMapping) -> serde_json::Value {
let protocol = match port.protocol.to_ascii_lowercase().as_str() {
"udp" => "udp",
"sctp" => "sctp",
_ => "tcp",
};
let mut mapping = serde_json::json!({
"container_port": port.container,
"host_port": port.host,
"protocol": protocol,
});
if !port.bind.is_empty() {
mapping["host_ip"] = serde_json::json!(port.bind);
}
mapping
}
fn podman_network_settings(
network: Option<&str>,
network_policy: &str,
@@ -1110,6 +1077,15 @@ mod tests {
));
}
#[test]
fn portainer_manifest_keeps_private_network_and_loopback_api_publication() {
let m = AppManifest::parse(include_str!("../../../apps/portainer/manifest.yml")).unwrap();
assert_eq!(podman_network_settings(m.app.container.network.as_deref(), &m.app.security.network_policy), ("slirp4netns", None));
assert_eq!(podman_publish_mapping(&m.app.ports[0]), serde_json::json!({
"container_port": 9000, "host_port": 9000, "protocol": "tcp", "host_ip": "127.0.0.1"
}));
}
#[test]
fn podman_network_settings_uses_networks_map_for_custom_networks() {
assert_eq!(