Container doesn't react to Ctrl-C until builtins are deployed

[folex]

I can't stop the container with ^C right after the start. It simply ignores ^C until it has fully started.

That also means it ignores SIGINT and probably other signals.

I guess s6 forwards SIGINT the right way, but the Fluence node ignores it. If that's the case, then the SIGINT handler should be set up earlier in the fluencelabs/fluence code.

Here's how that looks in the console:

$ docker run -v fluence:/.fluence -v /tmp/fluence/secret_key.ed25519:/.fluence/v1/secret_key.ed25519 -v /tmp/fluence/builtins_secret_key.ed25519:/.fluence/v1/builtins_secret_key.ed25519 --rm fluencelabs/fluence:latest --local
[2021-09-21T08:24:44.413648Z INFO  particle_node]
    +-------------------------------------------------+
    | Hello from the Fluence Team. If you encounter   |
    | any troubles with node operation, please update |
    | the node via                                    |
    |     docker pull fluencelabs/fluence:latest      |
    |                                                 |
    | or contact us at                                |
    | github.com/fluencelabs/fluence/discussions      |
    +-------------------------------------------------+

[2021-09-21T08:24:44.413756Z INFO  server_config::resolved_config] Loading config from "/.fluence/v1/Config.toml"
[2021-09-21T08:24:44.420653Z WARN  server_config::defaults] New management key generated. ed25519 private key in base64 = 8R3Ufdv5daVLoyBUPrI1hAco2OcTK+UNsJzmc7vR2pk=
[2021-09-21T08:24:44.423095Z INFO  particle_node] AIR interpreter: "/.fluence/v1/aquamarine_0.14.3.wasm"
[2021-09-21T08:24:44.423225Z INFO  particle_node::config::certificates] storing new certificate for the key pair
[2021-09-21T08:24:44.423417Z INFO  particle_node] node public key = 7JNvFtMFmj36PUGjXtZThsDySFv9CmAJKT17xr7BTwf3
[2021-09-21T08:24:44.423453Z INFO  particle_node] node server peer id = 12D3KooWG7k611vxxdJaoMnAAVJoUfJovaxnETEnH3N9LqG5MtNy
[2021-09-21T08:24:44.428729Z INFO  particle_node::node] Fluence listening on ["/ip4/0.0.0.0/tcp/7777", "/ip4/0.0.0.0/tcp/9999/ws"]
[2021-09-21T08:24:44.430728Z INFO  tide::server] Server listening on http://0.0.0.0:18080
[2021-09-21T08:24:44.431395Z INFO  local_vm::local_vm] particle_data_store: "/tmp/12D3KooWCCKcCxmv5qxuxQMviZXEtD9JHN9mJJir8sKCc5Uo6nqu"
^C^C^C^C^C^C^C

[2021-09-21T08:25:00.113576Z INFO  local_vm::local_vm] Made a particle a1042f41-0ad9-49e5-a81f-0c03896425d1
[2021-09-21T08:25:00.126841Z INFO  particle_closures::host_closures] Executed host call "op" "noop" (14us 100ns)
[2021-09-21T08:25:00.152669Z INFO  local_vm::local_vm] Made a particle e5a5b4ec-6ca3-4aae-8e8d-392238aa9c67
[2021-09-21T08:25:00.163208Z INFO  particle_closures::host_closures] Executed host call "srv" "list" (15us 900ns)
[2021-09-21T08:25:00.676753Z INFO  local_vm::local_vm] Made a particle e8e61bd4-7727-41f5-b662-32dec63ea548
[2021-09-21T08:25:01.171677Z INFO  particle_closures::host_closures] Executed host call "dist" "add_module" (2ms 398us 700ns)
[2021-09-21T08:25:02.033003Z INFO  local_vm::local_vm] Made a particle 39d5503c-b344-4017-8dc4-0d02c990f4a8
[2021-09-21T08:25:02.301553Z INFO  particle_closures::host_closures] Executed host call "dist" "add_module" (3ms 659us 900ns)
[2021-09-21T08:25:02.755948Z INFO  local_vm::local_vm] Made a particle 2daaa2b5-cd61-4816-8af7-4127fff61cda
[2021-09-21T08:25:02.759341Z INFO  particle_closures::host_closures] Executed host call "dist" "add_blueprint" (101us 300ns)
[2021-09-21T08:25:05.293240Z INFO  particle_closures::host_closures] Executed host call "srv" "create" (2s 533ms 731us 400ns)
[2021-09-21T08:25:05.293561Z INFO  particle_closures::host_closures] Executed host call "srv" "add_alias" (99us 100ns)
[2021-09-21T08:25:05.296905Z INFO  local_vm::local_vm] Made a particle d34a6407-2b41-4b3d-bea9-d61ff6b20ca8
[2021-09-21T08:25:05.298324Z INFO  particle_closures::host_closures] Executed host call "script" "add" (87us 300ns)
[2021-09-21T08:25:05.301695Z INFO  local_vm::local_vm] Made a particle 274292ec-c150-475b-ab53-d2f5c06447b2
[2021-09-21T08:25:05.302738Z INFO  particle_closures::host_closures] Executed host call "script" "add" (50us 600ns)
[2021-09-21T08:25:05.306992Z INFO  particle_node] Fluence has been successfully started.
[2021-09-21T08:25:05.307030Z INFO  particle_node] Waiting for Ctrl-C to exit...
^C[2021-09-21T08:25:14.586453Z INFO  particle_node] Shutting down...
[2021-09-21T08:25:14.586535Z INFO  particle_node::node] Stopping node
ctrlc fired!