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Author SHA1 Message Date
Dai Ha d9168de43e fleetd#219: OpenCodeLauncher config/discovery roots must not assume fleetd's own filesystem
CI / contract (pull_request) Successful in 44s
CI / build (pull_request) Successful in 1m48s
Site 1 (config root): under memberHerdrSocket, writeConfig() now places the
ephemeral opencode.json directory under worktreeRoot and shares it read-only
with worktreeGroup, reusing EnvAllowListScrub#shareWithGroup (widened to
package-private and generalized) — the same mechanism #213 built for the
ZDOTDIR scrub, rather than a second copy. Unlike the ZDOTDIR scrub's
degrade-to-overlay fallback, a missing worktreeRoot/worktreeGroup here
REFUSES the spawn (IllegalStateException from buildLaunch): this file is the
member's only way to learn where the bridge MCP is, so writing it somewhere
unreadable would just produce an undeliverable member with no signal
pointing at the cause. memberHerdrSocket absent stays byte-identical.

Site 2 (discovery root): under memberHerdrSocket, agentSessionId() now
declares session discovery unavailable and logs one WARN per launcher
instance instead of silently scanning fleetd's own $HOME (opencode.db lives
under the MEMBER's home under this config key). Decision + reasoning for why
this is a declare-unavailable rather than a new config key is in
defaultDiscoveryRoot()'s javadoc.

Widened HerdrPeerLauncher#memberHerdrSocketConfigured/memberScrubParentDir/
memberGroup to package-private so OpenCodeLauncher reuses the exact same
config resolution rather than re-deriving it.

Same-shape finding (not fixed, out of scope): ClaudeCodeLauncher#writeCharterFile
(line ~465) writes the role-charter temp file via Files.createTempFile with no
directory argument, i.e. under java.io.tmpdir — the same site-1 shape, unfixed
for the Claude Code adapter.
2026-09-01 14:38:48 +07:00
9 changed files with 371 additions and 257 deletions
@@ -7,43 +7,15 @@ public interface MemberLifecycle {
MemberLifecycle NONE = new MemberLifecycle() {
@Override
public MemberRole acquired(MemberRole role, String profile, String terminal) {
return role; // no registry configured — nothing to bind against, so the request stands
public void acquired(MemberRole role, String profile, String terminal) {
}
@Override
public void released(String terminal) {
}
@Override
public void requireSlotFor(MemberRole role, String profile) {
// no registry configured — nothing to validate against, so nothing is refused
}
};
/**
* Try to bind a newly spawned {@code terminal} into the role it was granted.
*
* @return the role this session actually holds: {@code role} unchanged for a role with no
* live slot-binding semantics (dev, reviewer), or when the bind succeeded; a fallback
* role — never {@code role} — when a slot-bound role (architect) could not be bound.
* Callers must record THIS value on the session, never the requested {@code role}, so
* a later roster read never reports a role the session does not hold (CB-619). In
* normal operation this fallback should not happen once {@link #requireSlotFor} has
* refused every unbindable spawn upfront — but a slot can still be lost between that
* check and this call to a concurrent spawn racing for the same slot, so the honest
* answer is still needed here too.
*/
MemberRole acquired(MemberRole role, String profile, String terminal);
void acquired(MemberRole role, String profile, String terminal);
void released(String terminal);
/**
* Refuse an acquire before anything spawns when {@code role} requires a live slot binding and
* no configured slot carries {@code profile} (CB-619 / fleetd #123). A no-op for a role with
* no slot-binding semantics.
*
* @throws IllegalArgumentException naming the role, the profile, and the pools that do carry it
*/
void requireSlotFor(MemberRole role, String profile);
}
@@ -8,7 +8,6 @@ import org.slf4j.LoggerFactory;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
@@ -207,72 +206,19 @@ public final class MemberRegistry implements MemberLifecycle {
*
* <p>The role check is lifecycle policy. {@link CallerResolver} repeats it when resolving a
* binding, so a later lifecycle regression cannot turn a worker into an architect.
*
* <p>CB-619 / fleetd #123: the return value is the role this session actually holds, and the
* caller is required to record THAT — never the requested {@code role} — on the session. Before
* this fix the caller kept the requested role regardless of whether the bind below succeeded, so
* a demoted session's {@code GET /members} row still said {@code "architect"} while
* {@code fleet_whoami} (which reads the live binding, not the request) correctly said
* {@code "worker"} — three sources of truth that disagreed about one live member, silently.
*/
@Override
public MemberRole acquired(MemberRole role, String profile, String terminal) {
public void acquired(MemberRole role, String profile, String terminal) {
if (role != MemberRole.ARCHITECT || terminal == null || terminal.isBlank()) {
return role;
return;
}
// slotsFor preserves definition order, so duplicate-profile slots use the first free one.
for (Entry entry : slotsFor(MemberRole.ARCHITECT).values()) {
if (Objects.equals(profile, entry.profile()) && bind(entry.key(), terminal)) {
return MemberRole.ARCHITECT;
return;
}
}
// fleetd #123: at least WARN — a role downgrade that the roster must now also reflect is
// not routine bookkeeping. requireSlotFor already refuses the config-gap case (no slot at
// all carries this profile) before a process ever spawns; reaching here means the config DID
// carry a matching slot but every one of them was already bound to a different terminal — a
// race this pre-spawn check cannot close on its own (see requireSlotFor's javadoc).
log.warn("member slot: no free architect slot for profile={} terminal={}; holding the session "
+ "as {} instead of the architect it asked for — every configured slot for this "
+ "profile is already bound to a different terminal", profile, terminal,
MemberRole.DEV.wireName());
return MemberRole.DEV;
}
/**
* CB-619 / fleetd #123: refuse an architect acquire before anything spawns when no configured
* slot carries {@code profile} — the config-gap case from the original defect report (a spawn
* asked for {@code role=architect, profile=sonnet}, and {@code fleet.architects} carried only
* {@code opus} and {@code sol}). A dev/reviewer acquire is always a no-op: those pools are
* placement candidates only (see {@code CompositePeerLauncher}), never a live identity binding,
* so there is nothing here to refuse — an explicit profile outside the pool for those roles is a
* documented operator override, not a defect.
*
* <p>This closes the config-gap case, not the live-capacity case: a profile that DOES carry a
* slot can still lose the race to a concurrent spawn between this check and the actual
* {@link #bind}, which is why {@link #acquired} must still answer honestly even after this
* check has passed.
*/
@Override
public void requireSlotFor(MemberRole role, String profile) {
if (role != MemberRole.ARCHITECT) {
return;
}
boolean hasSlot = slotsFor(MemberRole.ARCHITECT).values().stream()
.anyMatch(e -> Objects.equals(profile, e.profile()));
if (hasSlot) {
return;
}
List<String> pools = slotsFor(MemberRole.ARCHITECT).values().stream()
.map(Entry::profile)
.distinct()
.toList();
throw new IllegalArgumentException(
"no " + role.wireName() + " slot for profile '" + profile + "' — an architect's "
+ "identity IS the slot it is bound to, so there is nothing to bind this "
+ "session's identity to. fleet." + role.configKey() + " carries profiles: "
+ (pools.isEmpty() ? "(none configured)" : String.join(", ", pools))
+ "; add profile '" + profile + "' there, or spawn " + role.wireName()
+ " on one of those profiles instead");
log.info("member slot: no free architect slot for profile={}; session remains a worker", profile);
}
/** Unbind a released terminal using the compare-safe registry operation. */
@@ -143,17 +143,24 @@ public final class EnvAllowListScrub {
}
/**
* chgrp/chmod-equivalent over the freshly generated directory and the startup files already
* written into it: owner keeps full access, {@code group} gets traverse+read on the directory
* ({@code rwxr-x---}, so a login shell under that group can find and source the files) and
* read-only on each file ({@code rw-r-----}) — deliberately no group WRITE anywhere, since a
* member never needs to add or change fleetd's own generated scrub. (The scrub script's own
* report write inside the pane consequently fails closed rather than open — see {@code
* scrub.zsh}'s trailing {@code 2>/dev/null} — which {@link
* chgrp/chmod-equivalent over a freshly generated directory and the flat files already written
* into it: owner keeps full access, {@code group} gets traverse+read on the directory ({@code
* rwxr-x---}, so a member process — a login shell reading it via {@code ZDOTDIR}, or another
* process simply opening a file under it — running under that group can find and read the
* files) and read-only on each file ({@code rw-r-----}) — deliberately no group WRITE anywhere,
* since a member never needs to add or change what fleetd generated. (For the ZDOTDIR scrub
* specifically, this also means the scrub script's own report write inside the pane fails
* closed rather than open — see {@code scrub.zsh}'s trailing {@code 2>/dev/null} — which {@link
* dev.ltms.fleet.member.HerdrPeerLauncher#releaseZdotdir} already treats as "cannot be
* confirmed to have run" rather than success.)
*
* <p>Package-private and named generically on purpose: fleetd #213 built this for the ZDOTDIR
* scrub directory, and fleetd #219 reuses it verbatim for {@link
* dev.ltms.fleet.member.OpenCodeLauncher}'s ephemeral {@code opencode.json} directory — both are
* "a fleetd-generated directory of flat files that a different-uid member process must read but
* never write," so the sharing mechanism is shared rather than copied a second time.
*/
private static void shareWithGroup(Path dir, String group) {
static void shareWithGroup(Path dir, String group) {
try {
GroupPrincipal principal = dir.getFileSystem().getUserPrincipalLookupService()
.lookupPrincipalByGroupName(group);
@@ -164,11 +171,11 @@ public final class EnvAllowListScrub {
}
}
} catch (IOException e) {
throw new UncheckedIOException("cannot share generated ZDOTDIR " + dir + " with group '"
throw new UncheckedIOException("cannot share generated directory " + dir + " with group '"
+ group + "' — the group must exist, and the fleetd operator ("
+ System.getProperty("user.name") + ") must be a member of it", e);
} catch (UnsupportedOperationException e) {
throw new UncheckedIOException("cannot share generated ZDOTDIR " + dir + " with group '"
throw new UncheckedIOException("cannot share generated directory " + dir + " with group '"
+ group + "' — this filesystem does not support POSIX group ownership",
new IOException(e));
}
@@ -1275,8 +1275,13 @@ public abstract class HerdrPeerLauncher implements PeerLauncher {
* provisioning a worktree that will exist regardless, whereas an unconfigured value here means
* fleetd has no operator-endorsed location to put a credential-bearing directory a different OS
* user must reach, so falling back to the overlay is the honest answer, not a guess.
*
* <p>Package-private (fleetd #219) so {@link OpenCodeLauncher} can reuse the exact same
* "different OS user, put it under worktreeRoot instead of java.io.tmpdir" resolution for its
* own ephemeral {@code opencode.json} directory, rather than re-reading {@code config} a second
* time with a second copy of this null/blank handling.
*/
private Path memberScrubParentDir() {
Path memberScrubParentDir() {
FleetConfig cfg = config == null ? null : config.get();
if (cfg == null || cfg.worktreeRoot() == null || cfg.worktreeRoot().isBlank()) {
return null;
@@ -1289,8 +1294,11 @@ public abstract class HerdrPeerLauncher implements PeerLauncher {
* the group {@link dev.ltms.fleet.session.Worktrees#shareWithGroup} already establishes for
* provisioned worktrees, rather than a second group key — see {@link
* #applyEnvironmentAllowListPolicy}.
*
* <p>Package-private (fleetd #219) — reused by {@link OpenCodeLauncher} alongside {@link
* #memberScrubParentDir()}; see that method's javadoc.
*/
private String memberGroup() {
String memberGroup() {
FleetConfig cfg = config == null ? null : config.get();
if (cfg == null || cfg.worktreeGroup() == null || cfg.worktreeGroup().isBlank()) {
return null;
@@ -1463,8 +1471,12 @@ public abstract class HerdrPeerLauncher implements PeerLauncher {
* through (every production {@code HerdrPeerLauncher} does; a handful of older tests do not) —
* treated the same as "not configured", which is the correct, permissive default: it is exactly
* today's single-daemon behaviour.
*
* <p>Package-private (fleetd #219) — {@link OpenCodeLauncher} reuses this same gate to decide
* where its own ephemeral {@code opencode.json} directory (site 1) and its opencode session
* discovery (site 2) may run, rather than re-deriving "is this a multi-uid fleet" a second way.
*/
private boolean memberHerdrSocketConfigured() {
boolean memberHerdrSocketConfigured() {
if (config == null) {
return false;
}
@@ -20,6 +20,8 @@ import java.util.EnumSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.function.BooleanSupplier;
import java.util.function.Function;
import java.util.function.LongSupplier;
import java.util.function.Supplier;
@@ -215,7 +217,43 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
return Path.of(System.getProperty("java.io.tmpdir"));
}
/** The default opencode storage root: {@code ~/.local/share/opencode} (the XDG data dir). */
/**
* The default opencode storage root: {@code ~/.local/share/opencode} (the XDG data dir) —
* always FLEETD's OWN {@code user.home}, whichever OS user runs the daemon.
*
* <p><b>fleetd #219 site 2 — a decision, not a patch.</b> Under {@code memberHerdrSocket:} the
* member pane runs as a <em>different</em> OS user, and opencode writes {@code opencode.db}
* under <em>that</em> user's {@code $HOME}, not fleetd's. Scanning fleetd's own {@code
* user.home} is therefore looking in the wrong place — a wrong-LOCATION failure, not a
* wrong-PERMISSION one like site 1, and it fails quietly: {@link
* SessionAwareHandle#agentSessionId()} would keep returning {@code null} forever, which reads
* as "opencode does not support resume" rather than "fleetd looked in the wrong home." fleetd
* #209 is the reason that silence is unacceptable.
*
* <p>Three ways to close the gap were weighed:
* <ol>
* <li><b>Make the member's home configurable.</b> Correct in principle, but this ticket's
* scope is the two existing call sites, not a new config key — {@code memberHerdrSocket}
* already carries the second herdr's socket path, not its user's home, and inventing a
* parallel key here without also wiring it through discovery's actual callers is a
* half-shipped feature (the exact shape CB-596/CB-611 warn against).</li>
* <li><b>Derive it</b> (e.g. from {@code worktreeRoot}'s owner, or {@code getent passwd}).
* Rejected: nothing in this codebase resolves a Unix username to a home directory today,
* and guessing wrong would silently point discovery at a THIRD wrong location — worse
* than the current gap, because it would look like it should work.</li>
* <li><b>Declare discovery unavailable</b> under {@code memberHerdrSocket}, and say so once,
* loudly, instead of scanning a directory that structurally cannot hold the answer.</li>
* </ol>
*
* <p>Option 3 is taken — the one this ticket says to default to when unsure. {@link
* OpenCodeLauncher#spawn} routes {@link SessionAwareHandle#agentSessionId()} through {@link
* HerdrPeerLauncher#memberHerdrSocketConfigured()} before ever calling {@link
* OpenCodeSessionDiscovery#sessionIdForDirectory}, so under {@code memberHerdrSocket} the
* database at this root is never even opened, and one WARN per launcher instance names the gap
* instead of the {@code null} return reading as "unsupported." Capability advertising is
* unaffected: {@link #capabilities()} always includes {@code SESSION_RESUME}, since {@code
* memberHerdrSocket} absent (today's only live mode) is unchanged by this decision.
*/
private static Path defaultDiscoveryRoot() {
return Path.of(System.getProperty("user.home"), ".local", "share", "opencode");
}
@@ -331,7 +369,7 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
*/
private Path writeConfig(FleetConfig.Profile cfg, String charterText, String cwd) {
try {
Path dir = Files.createTempDirectory(configRoot, "fleetd-opencode-");
Path dir = Files.createTempDirectory(configParentDir(), "fleetd-opencode-");
dir.toFile().deleteOnExit();
ObjectNode root = JSON.createObjectNode();
@@ -402,6 +440,14 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
// carries operator-supplied values (URL, model id, api key), so escaping must be real.
Files.writeString(cfgFile, JSON.writerWithDefaultPrettyPrinter().writeValueAsString(root));
cfgFile.toFile().deleteOnExit();
if (memberHerdrSocketConfigured()) {
// fleetd #219: the same "different OS user" gap fleetd #213 closed for the ZDOTDIR
// scrub — share read-only with worktreeGroup rather than leaving the directory under
// fleetd's own 0700 java.io.tmpdir, where the member's OS user could not even
// traverse it. memberGroup() cannot be null here: configParentDir() above already
// refused this spawn if either worktreeRoot or worktreeGroup was missing.
EnvAllowListScrub.shareWithGroup(dir, memberGroup());
}
return cfgFile;
} catch (IOException e) {
throw new UncheckedIOException(
@@ -409,6 +455,57 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
}
}
/**
* fleetd #219 site 1: where {@link #writeConfig} creates its per-spawn directory.
*
* <ul>
* <li>{@code memberHerdrSocket} ABSENT (today's only mode): byte-identical to before this
* fix — always {@link #configRoot} (defaults to {@code java.io.tmpdir}, fleetd's own
* process).</li>
* <li>{@code memberHerdrSocket} PRESENT: {@code java.io.tmpdir} is fleetd's own per-user temp
* dir (mode {@code 0700} on macOS) — the member pane runs as a DIFFERENT OS user under
* this config key and cannot even traverse it, so the directory holding {@code
* opencode.json} (which tells the member where the bridge MCP is) and the member charter
* would be unreadable to the very process it is written for. The directory instead goes
* under {@code worktreeRoot}, shared read-only with {@code worktreeGroup} via {@link
* EnvAllowListScrub#shareWithGroup} — the SAME mechanism fleetd #213 built for the ZDOTDIR
* scrub, reused here rather than duplicated (see {@link
* HerdrPeerLauncher#memberScrubParentDir()}).</li>
* </ul>
*
* <p><b>Unlike the ZDOTDIR scrub, a missing {@code worktreeRoot}/{@code worktreeGroup} here
* REFUSES the spawn instead of degrading.</b> The ZDOTDIR scrub is a credential CONTROL: a
* degraded control (CB-596's sentinel overlay) is still worth having. This config file is not a
* control — it is the ONLY way the member learns where the bridge MCP lives. Writing it
* somewhere the member cannot read would not degrade anything; it would spawn a member that
* occupies a pane and never becomes deliverable, since {@code fleet_send} waits ~60s on the
* readiness gate and then fails with nothing pointing at a temp directory as the cause. Refusing
* up front, with a message that names the missing config key, is the honest failure — an
* undeliverable member is not a working spawn either way, so nothing is lost by refusing loudly
* instead of failing silently later.
*
* @throws IllegalStateException when {@code memberHerdrSocket} is configured but {@code
* worktreeRoot} and/or {@code worktreeGroup} is not
*/
private Path configParentDir() {
if (!memberHerdrSocketConfigured()) {
return configRoot;
}
Path root = memberScrubParentDir();
String group = memberGroup();
if (root == null || group == null) {
throw new IllegalStateException("memberHerdrSocket is configured, so opencode's config "
+ "directory (opencode.json + member charter) must be placed where the member's "
+ "OS user can read it — worktreeRoot, shared via worktreeGroup — but "
+ (root == null ? "worktreeRoot" : "worktreeGroup") + " is not configured. "
+ "Refusing to spawn rather than write a config the member cannot read: that "
+ "member would occupy a pane and never become deliverable, with nothing "
+ "pointing at the real cause. Configure both worktreeRoot and worktreeGroup to "
+ "enable opencode member spawns under memberHerdrSocket.");
}
return root;
}
/**
* Declare a custom OpenAI-compatible provider so the worker talks to a pinned endpoint (a local
* vLLM, say) instead of opencode's default gateway (CB-508).
@@ -517,11 +614,16 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
return afterScheme.contains("/") ? trimmed : trimmed + "/v1";
}
/** One WARN per launcher instance for the fleetd #219 site-2 discovery-unavailable gap. */
private final AtomicBoolean discoveryUnavailableWarned =
new AtomicBoolean();
/** Add lazy on-disk session discovery to the base handle. */
@Override
public PeerHandle spawn(SpawnRequest req) {
PeerHandle inner = super.spawn(req);
return new SessionAwareHandle(inner, discovery, effectiveCwd(req));
return new SessionAwareHandle(inner, discovery, effectiveCwd(req),
this::memberHerdrSocketConfigured, discoveryUnavailableWarned);
}
/**
@@ -536,11 +638,17 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
private final PeerHandle delegate;
private final OpenCodeSessionDiscovery discovery;
private final String cwd;
private final BooleanSupplier discoveryUnavailable;
private final AtomicBoolean discoveryUnavailableWarned;
SessionAwareHandle(PeerHandle delegate, OpenCodeSessionDiscovery discovery, String cwd) {
SessionAwareHandle(PeerHandle delegate, OpenCodeSessionDiscovery discovery, String cwd,
BooleanSupplier discoveryUnavailable,
AtomicBoolean discoveryUnavailableWarned) {
this.delegate = delegate;
this.discovery = discovery;
this.cwd = cwd;
this.discoveryUnavailable = discoveryUnavailable;
this.discoveryUnavailableWarned = discoveryUnavailableWarned;
}
@Override
@@ -565,6 +673,22 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
@Override
public String agentSessionId() {
// fleetd #219 site 2: under memberHerdrSocket the member pane runs as a different OS
// user, so opencode.db lives under THAT user's $HOME, not the one discoveryRoot was
// built from (see OpenCodeLauncher#defaultDiscoveryRoot's javadoc for the full
// reasoning). Scanning fleetd's own $HOME under that config would only ever find "no
// row" and read as "resume unsupported" — declare it unavailable instead, once, loudly.
if (discoveryUnavailable.getAsBoolean()) {
if (discoveryUnavailableWarned.compareAndSet(false, true)) {
log.warn("opencode session discovery unavailable: memberHerdrSocket is "
+ "configured, so opencode's on-disk session database lives under the "
+ "MEMBER's own $HOME, not fleetd's ({}) — agentSessionId will stay null "
+ "for every opencode member under this config, and SESSION_RESUME "
+ "cannot be honored (fleetd #209/#219).",
System.getProperty("user.home"));
}
return null;
}
// Lazy + retried, never a spawn-time blocker: opencode writes the session record only
// when the session is first persisted, so null here is the correct interim answer and
// the caller re-calls later (each call re-scans, picking up a record that has since
@@ -183,13 +183,6 @@ public final class SessionManager implements TurnListener {
String sessionName, String resumeSessionId) {
MemberRole memberRole = (role == null) ? MemberRole.DEV : role;
requireResumeCapability(profile, resumeSessionId);
// CB-619 / fleetd #123: an explicit profile bypasses placement (CompositePeerLauncher only
// constrains an UNQUALIFIED spawn to the role's pool), so it is the one path that can ask
// for a role with no slot to bind it to. Refuse before anything spawns. A blank profile is
// left to placement, which already restricts an unqualified spawn to the role's pool.
if (profile != null && !profile.isBlank()) {
memberLifecycle.requireSlotFor(memberRole, profile);
}
if (wt == null) {
// CB-557: the role must ride on the SpawnRequest, not stay a local. The launcher needs it
// to pick the profile out of that role's pool and to label the tab; a role kept only on
@@ -205,15 +198,11 @@ public final class SessionManager implements TurnListener {
String resolvedProfile = resolveProfile(handle, profile);
String cwd = launcher.effectiveCwd(new SpawnRequest(resolvedProfile, requestedCwd, callerCwd));
long now = nowNanos.getAsLong();
// CB-619: bind (or fail to bind) BEFORE the session is recorded, and store whatever role
// this call actually returns — never the requested memberRole — so the session's role,
// what GET /members and fleet_list report, is never a lie about what this terminal holds.
MemberRole actualRole = memberLifecycle.acquired(memberRole, resolvedProfile, handle.terminalId());
MemberSession session = new MemberSession(
handle.id(),
handle.terminalId(),
resolvedProfile,
actualRole,
memberRole,
cwd,
ownerTerminal,
now,
@@ -226,6 +215,7 @@ public final class SessionManager implements TurnListener {
handle.agentSessionId());
registry.put(handle.id(), session);
handles.put(handle.id(), handle);
memberLifecycle.acquired(session.role(), session.profile(), session.terminalId());
log.debug("acquired session id={} terminal={} profile={} owner={}",
handle.id(), handle.terminalId(), session.profile(), session.ownerTerminal());
notifyAcquired(session.terminalId());
@@ -519,14 +509,11 @@ public final class SessionManager implements TurnListener {
String resolvedProfile = resolveProfile(handle, profile);
String cwd = launcher.effectiveCwd(new SpawnRequest(resolvedProfile, path, callerCwd));
long now = nowNanos.getAsLong();
// CB-619: see the no-worktree path above — bind before recording, and store the returned
// actual role, so this session's role is never a lie about what it actually holds.
MemberRole actualRole = memberLifecycle.acquired(memberRole, resolvedProfile, handle.terminalId());
MemberSession session = new MemberSession(
handle.id(),
handle.terminalId(),
resolvedProfile,
actualRole,
memberRole,
cwd,
ownerTerminal,
now,
@@ -539,6 +526,7 @@ public final class SessionManager implements TurnListener {
handle.agentSessionId());
registry.put(handle.id(), session);
handles.put(handle.id(), handle);
memberLifecycle.acquired(session.role(), session.profile(), session.terminalId());
log.debug("acquired worktree session id={} terminal={} profile={} branch={} path={}",
handle.id(), handle.terminalId(), session.profile(), session.branch(), session.worktree());
notifyAcquired(session.terminalId());
@@ -1,13 +1,10 @@
package dev.ltms.fleet.mcp;
import dev.ltms.fleet.auth.CallerResolver;
import dev.ltms.fleet.auth.MemberRegistry;
import dev.ltms.fleet.auth.Principal;
import dev.ltms.fleet.config.FleetConfig;
import dev.ltms.fleet.guard.SubscriptionGuard;
import dev.ltms.fleet.herdr.AgentControl;
import dev.ltms.fleet.herdr.FakeHerdr;
import dev.ltms.fleet.herdr.PaneLocator;
import dev.ltms.fleet.herdr.WorkspaceControl;
import dev.ltms.fleet.inject.Injector;
import dev.ltms.fleet.msg.MessageService;
@@ -1027,87 +1024,6 @@ class FleetMcpTest {
assertTrue(textOf(res).contains("architect, dev, reviewer"), textOf(res));
}
// ── CB-619 / fleetd #123: a spawn asking for a role its profile has no slot for must be
// refused, never silently demoted with the roster still lying about it ───────────────────
/** Two profiles on one launcher, so a role's pool can name one and exclude the other. */
private static ClaudeCodeLauncher architectCapableLauncher(FakeHerdr h) {
FleetConfig.Profile opus = new FleetConfig.Profile(
"opus", "http://gx00.gw:8000", "coder", null, "FLEETD_WORKER_TOKEN", null,
"tab", "fleetd-workers", "worker: {profile} #{n}", null, null, null);
FleetConfig.Profile sonnet = new FleetConfig.Profile(
"sonnet", "http://gx00.gw:8000", "coder", null, "FLEETD_WORKER_TOKEN", null,
"tab", "fleetd-workers", "worker: {profile} #{n}", null, null, null);
return new ClaudeCodeLauncher(new AgentControl(h), new WorkspaceControl(h),
new SubscriptionGuard(Set.of("gx00.gw")), Map.of("opus", opus, "sonnet", sonnet),
"sonnet", _ -> "tok");
}
/** {@code fleet.architects} carries only {@code opus} — {@code sonnet} has no matching slot. */
private static MemberRegistry architectRegistry() {
return new MemberRegistry(new FleetConfig.Fleet(Map.of(),
Map.of("opus", new FleetConfig.Slot("opus")), Map.of(), Map.of(), null));
}
/**
* The literal defect (fleetd #123): {@code role=architect, profile=sonnet}, where
* {@code fleet.architects} carries only {@code opus}. Drives the real path —
* {@link FleetMcp#spawn} calls {@link SessionManager#acquire}, which must refuse before ever
* reaching the real {@link ClaudeCodeLauncher} — never {@link MemberRegistry#bind} called
* directly, which would walk around the gate under test.
*/
@Test
void spawnRefusesAnArchitectWithNoMatchingSlotAndNeverTouchesTheLauncher() {
FakeHerdr h = new FakeHerdr();
SessionManager sessions = new SessionManager(architectCapableLauncher(h));
sessions.setMemberLifecycle(architectRegistry());
McpSchema.CallToolResult res = FleetMcp.spawn(sessions, "sonnet", "architect",
null, null, null, null, null, null);
assertEquals(Boolean.TRUE, res.isError(), textOf(res));
String msg = textOf(res);
assertTrue(msg.contains("architect"), "names the role asked for: " + msg);
assertTrue(msg.contains("sonnet"), "names the profile: " + msg);
assertTrue(msg.contains("opus"), "names the pool that does carry the role: " + msg);
assertTrue(sessions.roster().isEmpty(), "a refused spawn must register no session");
assertTrue(h.calls.stream().noneMatch(c -> c.method().equals("agent.start")),
"a refused spawn must never reach the launcher — no process should ever start");
}
/**
* Positive control / parity check: when the profile DOES carry a slot, the spawn succeeds, and
* {@code GET /members} ({@link FleetMcp#listFleet}) and {@code fleet_whoami}
* ({@link FleetMcp#whoami}) — resolved through the SAME live {@link MemberRegistry} binding via
* a real {@link CallerResolver}, exactly as the daemon resolves a real MCP caller — must never
* disagree about this one live member's role.
*/
@Test
void rosterAndWhoamiAgreeOnceTheArchitectSlotBinds() {
FakeHerdr h = new FakeHerdr();
// Pin the spawn onto the one pane FakeHerdr's canned pane.process_info maps to WORKER_PID,
// so a CallerResolver can resolve THIS session's own terminal, not a fixture double.
h.pinNextStarts(1, "term_a", "w2:p7");
SessionManager sessions = new SessionManager(architectCapableLauncher(h));
MemberRegistry members = architectRegistry();
sessions.setMemberLifecycle(members);
McpSchema.CallToolResult spawnRes = FleetMcp.spawn(sessions, "opus", "architect",
null, null, null, null, null, null);
assertNotEquals(Boolean.TRUE, spawnRes.isError(), textOf(spawnRes));
assertTrue(textOf(spawnRes).contains("\"role\":\"architect\""), textOf(spawnRes));
String roster = textOf(FleetMcp.listFleet(architectCapableLauncher(h), sessions, Map.of(), ""));
assertTrue(roster.contains("\"role\":\"architect\""), "GET /members: " + roster);
ConnectionIdentity identity = new ConnectionIdentity(new PaneLocator(h), _ -> FakeHerdr.WORKER_PID);
CallerResolver resolver = CallerResolver.withLeadsAndMembers(identity, false, null, Map::of, members);
Principal caller = resolver.resolve("127.0.0.1", 42, null);
assertTrue(caller.isArchitect(), "fleet_whoami's own resolver must agree the terminal is bound");
String whoami = textOf(FleetMcp.whoami(caller, sessions));
assertTrue(whoami.contains("\"role\":\"architect\""), "fleet_whoami: " + whoami);
}
// ── CB-584: fleet_spawn accepts sessionName/resumeSessionId; roster shows agentSessionId ──
@Test
@@ -1,5 +1,9 @@
package dev.ltms.fleet.member;
import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.read.ListAppender;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import dev.ltms.fleet.config.FleetConfig;
@@ -14,9 +18,13 @@ import dev.ltms.fleet.peer.PeerUnreachableException;
import dev.ltms.fleet.peer.SpawnRequest;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.attribute.PosixFileAttributeView;
import java.nio.file.attribute.PosixFilePermissions;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutorService;
@@ -25,6 +33,7 @@ import java.util.concurrent.Future;
import java.util.function.Supplier;
import static org.junit.jupiter.api.Assertions.*;
import static org.junit.jupiter.api.Assumptions.assumeTrue;
/**
* The opencode adapter's launch build: a file-based MCP mount + reply-charter instructions (no
@@ -610,4 +619,196 @@ class OpenCodeLauncherTest {
assertTrue(json.path("mcp").path("intellij").isMissingNode(),
"no IDE server when ideMcpUrl is unset");
}
// --- fleetd #219: config root + discovery root under memberHerdrSocket ------------------------
/** A config with {@code memberHerdrSocket:} set, and optionally {@code worktreeRoot:}/{@code worktreeGroup:}. */
private static FleetConfig configWithMemberHerdrSocket(String worktreeRoot, String worktreeGroup) {
return new FleetConfig(
null, // bind
null, // herdrSocket
"/tmp/other-user.sock", // memberHerdrSocket
Map.of(), // profiles
null, // guard
worktreeRoot, // worktreeRoot
null, // lifecycle
null, // spawnReadyTimeoutMs
null, // spawnReadyPollMs
null, // broker
null, // primary
null, // fleet
null, // leadHeartbeat
null, // health
null, // placement
null, // auth
null, // configReload
null, // quarantineCooldownSeconds
null, // memberCredentials
null, // coordinator
worktreeGroup, // worktreeGroup
null // memberLoginShell
).withDefaults();
}
private static OpenCodeLauncher serviceWithConfig(FakeHerdr herdr, Path configRoot, Path discoveryRoot,
FleetConfig.Profile cfg, Supplier<FleetConfig> config) {
return new OpenCodeLauncher(new AgentControl(herdr), new WorkspaceControl(herdr),
Map.of(cfg.profile(), cfg), cfg.profile(), _ -> null,
0, System::currentTimeMillis, () -> { }, configRoot, discoveryRoot, null, null, config);
}
/** The current process's own primary group — resolvable on whatever host runs this test. */
private static String currentUserGroup() throws IOException {
PosixFileAttributeView view = Files.getFileAttributeView(Path.of("."), PosixFileAttributeView.class);
assumeTrue(view != null, "this host's filesystem does not support POSIX group ownership");
return view.readAttributes().group().getName();
}
/**
* fleetd #219 site 1, acceptance criterion 1: with {@code memberHerdrSocket} configured and both
* {@code worktreeRoot}/{@code worktreeGroup} set, the generated {@code opencode.json} directory
* lives under {@code worktreeRoot} — NEVER under the injected {@code configRoot} (standing in for
* {@code java.io.tmpdir}, fleetd's own 0700 temp dir, unreadable by the member's different OS
* user) — and is shared read-only with the group via the SAME mechanism (fleetd #213's {@link
* EnvAllowListScrub#shareWithGroup}) the ZDOTDIR scrub uses.
*/
@Test
void memberHerdrSocketWithWorktreeRootAndGroupPutsConfigDirUnderWorktreeRootAndSharesIt(
@TempDir Path configRoot, @TempDir Path worktreeRoot) throws Exception {
String group = currentUserGroup();
FakeHerdr herdr = new FakeHerdr();
serviceWithConfig(herdr, configRoot, configRoot,
opencodeCfg("google/gemini-2.5-pro", "http://127.0.0.1:8765/mcp", null),
() -> configWithMemberHerdrSocket(worktreeRoot.toString(), group)).spawn();
String cfgPath = startEnv(herdr).get("OPENCODE_CONFIG");
assertNotNull(cfgPath, "the profile still needs a config file");
Path cfgFile = Path.of(cfgPath);
Path dir = cfgFile.getParent();
assertEquals(worktreeRoot.toAbsolutePath().normalize(), dir.getParent(),
"the generated directory's parent must be worktreeRoot, not the injected configRoot "
+ "standing in for java.io.tmpdir — got parent " + dir.getParent());
assertFalse(dir.startsWith(configRoot),
"the generated directory must NOT be created under configRoot when memberHerdrSocket "
+ "is configured: " + dir);
assertEquals("rwxr-x---", PosixFilePermissions.toString(Files.getPosixFilePermissions(dir)),
"the directory must be group-traversable+readable, owner-only writable");
assertEquals("rw-r-----", PosixFilePermissions.toString(Files.getPosixFilePermissions(cfgFile)),
"opencode.json must be group-readable, never group-writable");
}
/**
* fleetd #219 site 1, acceptance criterion 2: with {@code memberHerdrSocket} configured but
* NEITHER {@code worktreeRoot} nor {@code worktreeGroup} set, the launcher must refuse the spawn
* rather than write a config under {@code java.io.tmpdir} the member cannot read — that member
* would occupy a pane and never become deliverable, with nothing pointing at the real cause.
*/
@Test
void memberHerdrSocketWithoutWorktreeRootOrGroupRefusesTheSpawn(@TempDir Path configRoot) {
FakeHerdr herdr = new FakeHerdr();
OpenCodeLauncher launcher = serviceWithConfig(herdr, configRoot, configRoot,
opencodeCfg("google/gemini-2.5-pro", "http://127.0.0.1:8765/mcp", null),
() -> configWithMemberHerdrSocket(null, null));
IllegalStateException ex = assertThrows(IllegalStateException.class,
() -> launcher.spawn(new SpawnRequest(null, null, null)),
"a missing worktreeRoot/worktreeGroup must refuse the spawn, not write an unreadable config");
assertTrue(ex.getMessage().contains("worktreeRoot"),
"the refusal must name the missing config key — got: " + ex.getMessage());
assertFalse(herdr.called("tab.create"),
"the spawn must be refused BEFORE any pane is created — got calls: " + herdr.calls);
}
/**
* fleetd #219 site 1, acceptance criterion 2 (the other missing half): {@code worktreeRoot} set
* but {@code worktreeGroup} missing must ALSO refuse — either one alone is not enough to
* guarantee the member's OS user can read the directory.
*/
@Test
void memberHerdrSocketWithWorktreeRootButNoGroupRefusesTheSpawn(
@TempDir Path configRoot, @TempDir Path worktreeRoot) {
FakeHerdr herdr = new FakeHerdr();
OpenCodeLauncher launcher = serviceWithConfig(herdr, configRoot, configRoot,
opencodeCfg("google/gemini-2.5-pro", "http://127.0.0.1:8765/mcp", null),
() -> configWithMemberHerdrSocket(worktreeRoot.toString(), null));
IllegalStateException ex = assertThrows(IllegalStateException.class,
() -> launcher.spawn(new SpawnRequest(null, null, null)));
assertTrue(ex.getMessage().contains("worktreeGroup"),
"worktreeRoot alone is not enough — got: " + ex.getMessage());
}
/**
* fleetd #219 site 1, acceptance criterion 3: with {@code memberHerdrSocket} ABSENT — even when
* a live, non-null {@code config} supplier is threaded through (not merely {@code config == null},
* which every other test in this file already exercises) — the generated directory must still
* land directly under the injected {@code configRoot}, byte-identical to before this fix.
*/
@Test
void memberHerdrSocketAbsentStaysUnderConfigRootEvenWithALiveConfigSupplier(@TempDir Path configRoot)
throws Exception {
FakeHerdr herdr = new FakeHerdr();
FleetConfig config = new FleetConfig(null, null, null, Map.of(), null, null, null, null, null,
null, null, null, null, null, null, null, null, null, null, null, null, null).withDefaults();
serviceWithConfig(herdr, configRoot, configRoot,
opencodeCfg("google/gemini-2.5-pro", "http://127.0.0.1:8765/mcp", null), () -> config)
.spawn();
String cfgPath = startEnv(herdr).get("OPENCODE_CONFIG");
assertNotNull(cfgPath);
assertTrue(Path.of(cfgPath).startsWith(configRoot),
"with memberHerdrSocket absent, the config directory must still be created directly "
+ "under configRoot, unchanged from before this fix");
}
/**
* fleetd #219 site 2: under {@code memberHerdrSocket}, opencode session discovery must be
* declared unavailable rather than silently scanning fleetd's own {@code discoveryRoot} — which,
* under this config key, is NOT where the member's opencode actually writes its session
* database. This test proves the gate is real, not merely "no record yet": a matching record IS
* written to {@code discoveryRoot} (the exact fixture {@link
* #theHandleDiscoversTheSessionIdForTheWorkersCwdOnlyAfterItAppears} proves discovery would
* otherwise find), and {@code agentSessionId()} must still return {@code null} — proving the
* gate, not a coincidental absence of data, is what produced the null. One WARN is also logged,
* exactly once even across repeated calls.
*/
@Test
void discoveryIsUnavailableUnderMemberHerdrSocketEvenWhenARecordExists(
@TempDir Path configRoot, @TempDir Path worktreeRoot, @TempDir Path discRoot) throws Exception {
String group = currentUserGroup();
OpenCodeSessionDiscoveryTest.writeRecord(discRoot, "ses_should_be_hidden", "/work/dir", 1000L);
FakeHerdr herdr = new FakeHerdr();
OpenCodeLauncher launcher = new OpenCodeLauncher(new AgentControl(herdr),
new WorkspaceControl(herdr), Map.of("gemini", opencodeCfg(null, null, null)),
"gemini", _ -> null, 0, System::currentTimeMillis, () -> { }, configRoot, discRoot,
null, null, () -> configWithMemberHerdrSocket(worktreeRoot.toString(), group));
Logger logger = (Logger) LoggerFactory.getLogger(OpenCodeLauncher.class);
Level original = logger.getLevel();
logger.setLevel(Level.INFO);
ListAppender<ILoggingEvent> appender = new ListAppender<>();
appender.start();
logger.addAppender(appender);
PeerHandle handle;
try {
handle = launcher.spawn(new SpawnRequest(null, "/work/dir", null));
assertNull(handle.agentSessionId(),
"memberHerdrSocket configured: discovery must stay unavailable even though a "
+ "matching record exists in discoveryRoot");
assertNull(handle.agentSessionId(), "the gate must hold on a second call too");
} finally {
logger.detachAppender(appender);
logger.setLevel(original);
}
List<String> warnings = appender.list.stream()
.filter(e -> e.getLevel() == Level.WARN)
.map(ILoggingEvent::getFormattedMessage)
.toList();
assertEquals(1, warnings.size(),
"exactly one WARN across two agentSessionId() calls — got: " + warnings);
assertTrue(warnings.get(0).contains("memberHerdrSocket"),
"the WARN must name memberHerdrSocket as the reason — got: " + warnings.get(0));
}
}
@@ -4,7 +4,6 @@ import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.read.ListAppender;
import dev.ltms.fleet.auth.MemberRegistry;
import dev.ltms.fleet.config.FleetConfig;
import dev.ltms.fleet.guard.SubscriptionGuard;
import dev.ltms.fleet.herdr.AgentControl;
@@ -334,57 +333,6 @@ class SessionManagerTest {
}
}
/**
* CB-619 / fleetd #123: {@code requireSlotFor} closes the config-gap case (no slot at all
* carries the profile) before anything spawns, but a profile that DOES carry a slot can still
* lose the bind to a concurrent spawn racing for the same slot. This drives that residual case
* through the REAL path — {@link SessionManager#acquire} against the real {@link
* dev.ltms.fleet.member.ClaudeCodeLauncher} and {@link FakeHerdr} — never {@link
* dev.ltms.fleet.auth.MemberRegistry#bind} directly for the session under test (only the
* precondition uses it, to occupy the slot before the real spawn happens). The session that
* loses the race must be held as a plain {@code dev}, never left claiming {@code architect} in
* the roster, and the daemon log must say so at WARN.
*/
@Test
void aSecondArchitectOnAnAlreadyBoundProfileIsHeldAsDevNotArchitectAndWarnsLoudly() {
LoggerContext ctx = (LoggerContext) LoggerFactory.getILoggerFactory();
ch.qos.logback.classic.Logger registryLog = (ch.qos.logback.classic.Logger)
LoggerFactory.getLogger(MemberRegistry.class);
ListAppender<ILoggingEvent> appender = new ListAppender<>();
appender.setContext(ctx);
appender.start();
registryLog.addAppender(appender);
registryLog.setLevel(Level.WARN);
try {
FakeHerdr herdr = new FakeHerdr();
SessionManager sessions = sessionManager(herdr);
MemberRegistry members = new MemberRegistry(
new FleetConfig.Fleet(Map.of(), Map.of("opus", new FleetConfig.Slot("ltms-local")),
Map.of(), Map.of(), null));
assertTrue(members.bind("architect:opus", "term_already_bound"),
"precondition: occupy the sole architect slot before the real spawn under test");
sessions.setMemberLifecycle(members);
MemberSession session = sessions.acquire("ltms-local", MemberRole.ARCHITECT, null,
"/caller", "term_primary", null);
assertEquals(MemberRole.DEV, session.role(),
"the slot is taken, so this session must be held as a plain member, never a lie");
assertEquals("dev", SessionManager.rosterView(session, null).get("role"),
"the roster must report what this session actually holds, not what it asked for");
String warn = appender.list.stream()
.filter(e -> e.getLevel().equals(Level.WARN))
.map(ILoggingEvent::getFormattedMessage)
.findFirst()
.orElse("no slot-exhaustion WARN logged");
assertTrue(warn.contains("ltms-local"), "the log names the profile: " + warn);
assertTrue(warn.contains(session.terminalId()), "the log names the terminal: " + warn);
} finally {
registryLog.detachAppender(appender);
}
}
@Test
void rosterReflectsAcquiredMinusReleased() {
FakeHerdr herdr = new FakeHerdr();