Attaching a container, picking claude and hitting Run gave one line —
`execvp(3) failed.: No such file or directory` — and the run-mode menu offered
every mode. Three separate defects, found on a real deployment.
TmuxManager.createSession resolved the CLI directory without distinguishing a
docker session, so a host with no claude threw, the catch fell back to a direct
PTY, and that PTY exec'd the CLI on the HOST. The failure surfaced as a bare
execvp error naming nothing. A docker session runs its CLI inside the container;
the host does not need it. All eight modes now sit behind a cliRunsInContainer
guard, and whether the container has the CLI is settled by the adoption
preflight or the image gate before launch.
The running check used a bare double quote and command substitution. The whole
chain is embedded in an outer `bash -c "…"`, so the unescaped quote closed that
string early and the remainder was re-tokenized. It is now a `grep -qx` pipeline
using only the single-quote form every other line in the builder already uses.
Claude Code refuses --dangerously-skip-permissions as root. Our base image runs
a non-root user, so an owned container never hit this; an adopted container's
user belongs to its owner and is frequently root, and keeping the flag killed
the pane with a message visible only inside the container. The preflight now
reports runsAsRoot and the launch chain drops the flag for it.
The menu also showed every mode because the container CLI probe only started
when the menu opened. It is warmed when the case is selected instead.
The run-mode dropdown hides CLIs that are not installed on the HOST (#201). That
is right for local sessions and wrong for a container case, whose agents run
inside the container: a host with no claude installed hides the mode while the
container ships one, which is exactly what happened on a real deployment.
The adoption preflight already probes what the container has, so that result is
persisted on the case and surfaced through CaseInfo. Docker cases gate on it;
every other case keeps the host probe unchanged.
An absent list reads as "do not gate" rather than "nothing available": an owned
container runs our base image, which ships every CLI, and treating unknown as
empty would leave the menu with Shell alone.
The Docker tab gains an "Attach to an existing container" toggle. Ticking it
swaps the create-time fields (image, network, advanced) — which describe a
`docker create` attaching never runs — for the container name, and routes the
submit to the adopt endpoint.
Reuses the existing linkDockerCase flow end to end: only the final call differs.
The docker-host upsert still applies, since it is what resolves the
engine/context/daemon for `docker exec`; its create-time fields are simply never
read for an attached case.
Docker cases could only run in a container Codeman created itself. Attaching to
one the user already built and runs means Codeman must leave that container's
lifecycle completely alone, which the launch chain could not do: it was
`image inspect` -> `inspect || create` -> `start` -> `exec`.
Adds `DockerCase.owned`, mirroring the `owned:false` contract remote-SSH already
uses for attached sessions. Absent (every existing case) means owned, so current
behaviour is byte-identical. `false` means the container belongs to the user and
Codeman may only exec into it.
The launch chain for an attached container only looks, then execs: no image gate
(the image is theirs), no create, and no `start` — starting a container we do not
own is the very mutation attaching promises not to perform. A missing or stopped
container fails closed with an actionable message instead. Credential seeding is
skipped too: those copies read from create-time read-only mounts that do not
exist here, and writing host credentials into someone's container is not ours to
do, so its CLIs must already be authenticated inside it.
Four fail-closed guards. buildDockerStopCommand and buildDockerRemoveCommand
throw during pure string construction, so no caller bug can turn into a
`docker stop`/`rm` on a container we do not own; removeDockerContainer refuses
again at the lowest layer; drift reports "none" for an attached container, which
carries no `codeman.confighash` label and would otherwise always look drifted and
409 the launch gate forever; and the orphan reaper skips attached containers
through a check deliberately independent of the two conditions already covering
them.
`owned` is applied AFTER the config hash is computed. dockerConfigHash takes an
explicit field list, so ownership can never shift an existing case's hash — if it
did, every pre-existing case would trip the drift gate at once, and the remedy
the UI offers is "recreate the container".
Adds POST /api/cases/docker-adopt and a read-only
POST /api/docker-cases/adopt-preflight. The preflight refuses at LINK time rather
than at session launch, where the only ways out would be a dead pane or starting
a container we do not own.
Tests assert the negative guarantee directly — that create, start, stop, rm,
restart and kill are absent from the generated commands while `docker exec -it`
and `new-session -A` remain — since it cannot be observed by using the feature.
d fei