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docker: logs follow a held connection, and networks can be removed

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Two gaps the Docker tab had against Dockhand and against its own Services
tab next door.

Logs: one `docker logs -f` per viewer over a WebSocket, the shape the
Services tab's journal tail already uses, instead of asking again every two
seconds. stdout and stderr both, with stderr marked so the page can colour
what went wrong. Docker replays the backlog down two pipes in no particular
order, so the opening 300 ms is held and sorted by the stamp Docker wrote;
after that the log is live and in order. A reconnect resumes from the last
line rather than from the top — `--since` is inclusive and two lines can
share a nanosecond, so the client drops what it has already shown by line,
not by "later than". A container that has stopped ends the stream at once,
so reconnects back off to 15 s.

Networks: remove and prune, which images and volumes have had all along.
The overview now says which containers are attached to each network, so the
✕ appears only on one nothing uses, and never on bridge, host or none.
`network rm` prints the real reason and then an aggregate "exit status 1",
so the message shown is the first line, not the last.

Prune is not exercised against `core`: several networks here belong to
stacks that are merely down, and pruning would give them new subnets on
their next deploy.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Mitchell-Johnson
2026-09-25 21:17:37 -07:00
co-authored by Claude Opus 5
parent b8c654b61b
commit 09dc846730
6 changed files with 386 additions and 39 deletions
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internal/api/server.go
+3
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@@ -187,6 +187,8 @@ func New(cfg *config.Config, sessions *auth.Sessions, mgr *term.Manager, col *me
m.HandleFunc("POST /api/docker/images/prune", s.auth(s.imagePrune))
m.HandleFunc("POST /api/docker/volumes/remove", s.auth(s.volumeRemove))
m.HandleFunc("POST /api/docker/volumes/prune", s.auth(s.volumePrune))
m.HandleFunc("POST /api/docker/networks/remove", s.auth(s.networkRemove))
m.HandleFunc("POST /api/docker/networks/prune", s.auth(s.networkPrune))
m.HandleFunc("GET /api/docker/stacks/{name}", s.auth(s.stackFile))
m.HandleFunc("PUT /api/docker/stacks/{name}", s.auth(s.stackSave))
m.HandleFunc("POST /api/docker/stacks/{name}/{action}", s.auth(s.stackAction))
@@ -213,6 +215,7 @@ func New(cfg *config.Config, sessions *auth.Sessions, mgr *term.Manager, col *me
m.HandleFunc("GET /api/nodes/{node}/tasks/{id}/stream", s.auth(s.taskOnHub(s.streamTask)))
m.HandleFunc("POST /api/docker/containers/{id}/{action}", s.auth(s.dockerAction))
m.HandleFunc("GET /api/docker/containers/{id}/logs", s.auth(s.dockerLogs))
m.HandleFunc("GET /api/docker/containers/{id}/logs/tail", s.auth(s.dockerTail))
m.HandleFunc("GET /api/docker/containers/{id}/inspect", s.auth(s.dockerInspect))
m.HandleFunc("GET /api/docker/containers/{id}/health", s.auth(s.dockerHealth))
m.HandleFunc("GET /api/docker/containers/{id}/events", s.auth(s.dockerEvents))