Commit Graph

13 Commits

Author SHA1 Message Date
steve b054e7b987 api+agent: document protocol-version stability and forget back-compat decisions
version.go: add a comment block explaining why Phase 5's wire changes
(CommandRunPayload, ConfigUpdatePayload, RepoStatsPayload reshapes) did
not bump CurrentProtocolVersion — lockstep deploy, no rolling-upgrade
path, smoke env restage enforces it. Notes where a version bump to 2
would be required if a multi-version path is ever introduced.

cmd/agent/main.go: document why the JobForget handler hard-errors on
empty ForgetGroups rather than falling back to a single-policy form.
The maintenance ticker is the only writer and always populates the
field; the fallback was specced but skipped given lockstep deploy.
2026-05-04 10:19:15 +01:00
steve c47cc682e0 server: maintenance ticker drives forget/prune/check on cadence
Wires a 60s server-side ticker to the pure-logic maintenance.Decide
introduced in the previous commit. Decisions flow through a new
DispatchMaintenance method on *Server, which:

  - skips offline hosts (no pending_runs queueing — maintenance is
    not a backup, missed fires shouldn't pile up)
  - silently skips prune when admin creds aren't bound
  - pushes admin creds before prune, then dispatches with
    RequiresAdminCreds=true (same as operator-driven prune)
  - persists job rows with actor_kind="system"

Reshapes the forget wire payload from a single RetentionPolicy to a
ForgetGroups list (one tag + per-group keep-* per source group). The
agent walks the groups and runs `restic forget --tag <name> --keep-*`
once per group. Dead-code removed: CommandRunPayload.RetentionPolicy,
the old forget JSON-decode in cmd/agent, and the single-policy form of
restic.RunForget.
2026-05-04 10:19:15 +01:00
steve dafae84149 agent: secrets fail-loud on corrupt blob + small polish
Save and SaveAdmin now propagate loadBundle errors instead of silently
overwriting a corrupt file (data-loss fix). Tests added for both paths.
reportStats logs a Debug on RunStats failure; r in runJob gets a comment
explaining the prune-runner asymmetry; runner_test comment tightened.
2026-05-04 10:19:15 +01:00
steve 1f600fa849 agent: RunPrune/RunCheck/RunUnlock + reportStats + admin-cred slot dispatch
Extract resticEnv/sendStarted/streamHandler/sendFinished helpers to remove
boilerplate duplication across Run* methods. Add RunPrune (ships repo.stats
with LastPruneAt before job.finished), RunCheck (ships stats with
LastCheckStatus/LockPresent regardless of outcome), RunUnlock (ships
LockPresent=false on success), and reportStats (fills size fields via
RunStats when caller didn't populate them).

Wire JobPrune/JobCheck/JobUnlock into the dispatcher switch; teach
MsgConfigUpdate about the Slot discriminator for admin vs repo creds;
add strconv import for subset-pct parsing.
2026-05-04 10:19:15 +01:00
steve d000fe7ec1 P2R-01: REST + WS rewire against the slim shape
Schedules CRUD now takes {cron, enabled, source_group_ids[]} with cron
parsed via robfig/cron/v3 and group membership scoped to the host.
New source-groups CRUD lives at /api/hosts/{id}/source-groups; delete
refuses with 409 if any schedule still references the group, returning
the schedule list so the UI can prompt 'remove from these schedules
first.' Repo-maintenance GET/PUT manages forget/prune/check cadences
on host_repo_maintenance — no version bump, the server-side ticker
(P2R-06) drives execution.

Per-source-group Run-now (POST /hosts/{id}/source-groups/{gid}/run)
resolves the group's includes/excludes/retention/tag and dispatches a
backup command.run with the new structured CommandRunPayload fields
(Includes/Excludes/Tag). Old per-host /hosts/{id}/run-backup and
/hosts/{id}/init-repo return 410 Gone with a redirect message.

schedule_push.go is rebuilt: buildScheduleSetPayload assembles the
slim wire shape, pushScheduleSetOnConn ships it during the on-hello
window, pushScheduleSetAsync fires after every CRUD mutation, and
dispatchScheduledJob handles agent schedule.fire by iterating the
schedule's source groups and dispatching one backup per group with
actor_kind=schedule and scheduled_id pointing at the schedule.

Auto-init at first WS connect: when the host has repo creds bound and
no init job in its history, server dispatches restic init. Restic's
'config file already exists' soft-success means re-runs against an
existing repo no-op; we don't auto-retry on failure (operator triggers
re-init manually via the danger zone in P2R-09).

api.Schedule drops Kind/Paths/Excludes/Tags/RetentionPolicy/Manual etc.
in favour of {id, cron, enabled, source_groups: [...]}. The agent
scheduler stops checking sch.Manual; cmd/agent's backup dispatch reads
Includes/Excludes/Tag instead of Args.

Tests cover the new HTTP surface end-to-end: source-groups CRUD with
in-use refusal, schedule validation (bad cron / missing groups /
foreign group), repo-maintenance auto-seed and validation, the 410
route, and buildScheduleSetPayload's wire-shape correctness. Full
suite passes; smoke env exercises auto-init dispatch on hello,
async push after schedule create, and per-source-group Run-now
landing the right paths/excludes/tag at the agent.
2026-05-03 10:56:40 +01:00
steve fdecde0d5c P2-05: forget command with retention policy
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End-to-end forget plumbing — operator can create a forget schedule
with keep-* values, agent runs restic forget --keep-* … on the
schedule's cron (or via per-row Run-now), snapshot list shrinks,
UI updates.

* api.CommandRunPayload gains retention_policy json.RawMessage so
  the agent doesn't need a typed copy of the server-side struct.
* restic.ForgetPolicy mirrors restic's --keep-* flags. Empty()
  reports zero dimensions; restic wrapper RunForget refuses to
  run an empty policy (would delete every snapshot). Does NOT
  pass --prune — pruning lives behind a separate admin-only
  credential (P2-06); forget just rewrites the snapshot index.
* runner.RunForget mirrors RunBackup's envelope shape so the
  live log viewer works without special-casing. On success
  triggers reportSnapshots (forget shrinks the index, the host's
  snapshot count almost certainly changed).
* cmd/agent dispatcher handles MsgCommandRun with kind=forget,
  decodes RetentionPolicy from the wire, builds restic.ForgetPolicy.
* Server dispatchScheduleNow marshals the schedule's
  RetentionPolicy into the wire payload for kind=forget jobs.
  Refuses to dispatch a forget schedule with empty retention.
* validateSchedule rejects kind=forget without at least one keep-*
  dimension (new error code: missing_retention).
* UI schedule edit form gains a Kind dropdown (backup or forget;
  immutable on edit). Paths block toggles by kind via inline
  data-kind attributes. Form help-text explains the prune
  separation.

Other kinds (prune, check, unlock) deferred to P2-06..08; the
Kind dropdown only offers backup and forget today.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-02 14:07:42 +01:00
steve 6450bf1b88 P2-02 (agent side) + P2-03: agent scheduler + schedule.fire dispatch
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Closes the schedule reconciliation loop end-to-end.

* New `internal/agent/scheduler` package wraps robfig/cron/v3 with
  the lifecycle the agent needs:
  - Apply(ScheduleSetPayload, Sender) stops the prior cron (waiting
    for in-flight entries to return), rebuilds from scratch, starts,
    and emits schedule.ack with the version we just applied.
  - Disabled entries skipped silently; bad cron exprs (which
    shouldn't reach us — the server validates — but defensive)
    log a warn and skip.
  - On each cron tick the entry sends a new schedule.fire envelope
    to the server with {schedule_id, scheduled_at}. The scheduler
    itself never builds CommandRunPayloads — server is the source
    of truth for jobs.
  - tx is swapped on every Apply, so reconnect is handled
    naturally: cron entries that fire against a dropped tx log
    "no active connection" and skip the tick.
  - Stop() is idempotent and waits for the cron's in-flight
    workers via cron.Stop().Done().

* New wire message api.MsgScheduleFire + api.ScheduleFirePayload
  for the agent → server "I just fired locally" RPC.

* Server-side dispatch (schedule_push.go: dispatchScheduledJob):
  looks up the schedule by id, validates ownership + that it's
  enabled, builds args from kind (paths for backup; other kinds
  are still arg-less in Phase 2 and grow as those job kinds land
  in P2-05..08), persists a jobs row with actor_kind=schedule +
  scheduled_id, and writes command.run back on the same conn so
  the agent runs through its existing dispatch path.

* store.CreateJob now writes scheduled_id. This column was in the
  schema since 0001 but never populated — the original P1 path
  only had operator-driven jobs, so actor_kind was always 'user'
  and scheduled_id was always nil.

* cmd/agent/main.go integration: dispatcher gains a
  *scheduler.Scheduler; the MsgScheduleSet case now hands the
  payload to scheduler.Apply (in a goroutine so the WS read loop
  keeps draining other messages).

* WS dispatcher gains OnScheduleFire alongside OnScheduleAck.

* Tests:
  - scheduler unit tests (4): ack-on-apply, cron tick fires
    schedule.fire envelope, disabled entries don't fire, replace-
    prior-state stops the old cron.
  - Server-side end-to-end: schedule.fire → command.run with the
    right job_id / kind / args, plus jobs row with actor_kind=
    "schedule" and scheduled_id linking back to the schedule.

Persistence of next-fire times across agent restarts is
deliberately deferred. A missed fire window during downtime
simply fires once on reconnect — that's the desirable behaviour
(the operator wants the missed backup to run, not be silently
skipped because we lost track of when it was due).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-02 11:29:12 +01:00
steve ee3ee241ea P1 polish: agent-as-root, init-repo flow, rest creds passthrough, UX fixes
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Cohesive batch from a smoke-test session against a real rest-server.
Themed bullets:

* Agent runs as root, sandboxed via systemd. CapabilityBoundingSet
  drops to CAP_DAC_READ_SEARCH + restore caps; ProtectSystem=strict
  with ReadWritePaths confined to /etc + /var/lib/restic-manager;
  NoNewPrivileges blocks escalation. Install script no longer
  creates a service user. spec.md §4.2 / §14.1 / §14.3 explain the
  rationale (matches UrBackup / Veeam / Bareos defaults; trying to
  back up "everything" as an unprivileged user creates silent skips
  on /home, /root, /var/lib/* with no upside vs the threat model
  the agent already implies).

* Init-repo end-to-end. New JobKind="init" wired through agent
  runner, restic.Env.RunInit, server dispatcher, and a UI button
  (red "Initialise repo" in the run-now panel). hosts.repo_initialised_at
  flips on init success, on backup success, or on a non-empty
  snapshots.report. The "Run now" / "Init" / "Retry" branching now
  drives both the dashboard host row and the host-detail panel.
  Migrations 0004 (column), 0005 (jobs.kind CHECK widened — using
  the safe create-new-then-rename pattern; first version corrupted
  job_logs.job_id FK), 0006 (cleans up job_logs FK on already-
  affected DBs).

* rest-server creds embedded at exec time only. restic.Env gains
  RepoUsername; mergeRestCreds() builds the user:pass@-prefixed URL
  inside envSlice() and never assigns it back to the struct, so
  nothing slog-able ever sees the cleartext form. RedactURL helper
  for any future surface that needs to log a URL safely. Both
  helpers tested.

* Add-host UX. Repo password is now optional — server mints a
  24-byte URL-safe random one and surfaces it once, alongside an
  htpasswd snippet ("echo PASS | htpasswd -B -i ... USERNAME") so
  the operator pastes one command on the rest-server host and one
  on the endpoint. Result page also links the install snippet at
  /install/install.sh (was /install.sh — 404'd before) and pipes
  to bash (not sh — script uses set -o pipefail and other
  bashisms; on Debian/Ubuntu sh is dash).

* Late-subscriber race in JobHub. A fast-failing job could finish
  (DB write + Broadcast) before the browser's HX-Redirect → page
  load → WS-connect path completed, so the JS sat forever waiting
  on a job.finished that already passed. JobHub split into
  Register + Send + Run; handleJobStream now subscribes first,
  re-fetches the job, and sends a synthetic job.finished if the
  state is already terminal.

* HTMX error visibility. New toast partial listens to
  htmx:responseError and surfaces the response body as a
  bottom-right toast — every server-side validation error now
  becomes visible without per-handler JS wiring. Also handles
  custom rm:toast events for future server-pushed notifications
  via the HX-Trigger header. Themed via existing CSS vars.

* Dashboard rows are now whole-row clickable to host detail
  (CSS card-link pattern: absolute-positioned anchor + .row-action
  z-index restoration so the action button stays clickable).
  "View →" on a running job links to /jobs/<id> rather than
  /hosts/<id> since the row click already covers the host page.

* "Run first" / "Run first backup" → "Run now" everywhere for
  consistency.

* runbook (docs/e2e-smoke.md) updated — live-log streaming step
  now reflects P1-26; mentions the browser-driven Run-now flow.

* _diag/dump-creds — moved out of cmd/ so go build doesn't pick
  it up; .gitignore now excludes /_diag/ entirely.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-02 11:02:12 +01:00
steve b6cfa99413 agent: log accept/complete on backup jobs; audit: populate host.enrolled payload
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Two warts surfaced during the smoke run:

- Agent was silent between "config.update applied" and "job
  finished" — operators tailing journalctl saw no acknowledgement
  that a command.run had landed. Adds Info logs at job-accept
  ({job_id, paths}) and at successful completion.

- The host.enrolled audit row had an empty {} payload. Now
  carries {hostname, os, arch, has_repo_creds} so an audit-log
  reader can answer "what got enrolled and did the operator
  bundle creds with the token" without joining back to hosts.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-01 18:24:56 +01:00
steve ec276dbc91 P1-33: agent-side encrypted secrets store + push-on-update
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New internal/agent/secrets package: AEAD blob at
/var/lib/restic-manager/secrets.enc, atomic write (os.CreateTemp +
Sync + Rename), 0600. Key lives in agent.yaml as base64
(SecretsKey) — same trust boundary as the bearer token, minted on
first start via EnsureSecretsKey.

cmd/agent: dispatcher reads creds fresh from secrets.Load() on
each job rather than from in-memory config. config.update merges
the push with what's on disk and persists, so a daemon restart
keeps the latest values. Legacy plaintext repo_url/repo_password
in agent.yaml are silently migrated into secrets.enc on next start
and stripped from the YAML on the following save.

Tests: round-trip + wrong-key rejection + atomic-write
post-condition for secrets; key idempotence + legacy-field
parse/clear for config.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-01 12:41:28 +01:00
steve 95b49ecab9 phase 1: run-now backup — restic wrapper, job lifecycle, end-to-end
Lands the operator → server → agent → restic → server roundtrip for
on-demand backups. The flow:

  POST /api/hosts/{id}/jobs {kind:"backup",args:["/path"]}
    → server creates a queued Job row
    → server emits command.run over WS to the host's agent
    → agent dispatcher spawns runner.RunBackup in a goroutine
    → runner spawns `restic backup --json`, parses each line
    → forwards: job.started, log.stream (every line), job.progress
      (throttled to 1/sec), job.finished (with summary stats blob)
    → server WS handler persists those into jobs / job_logs

P1-16 internal/restic: thin Locate + Env wrapper that runs `restic
  backup --json`, scans stdout/stderr, parses BackupStatus +
  BackupSummary, calls back into a LineHandler so the agent can fan
  out to log.stream + job.progress. Treats exit code 3 as
  "succeeded with issues" (matches restic's contract).

P1-18 store: jobs accessors (CreateJob, MarkJobStarted,
  MarkJobFinished, AppendJobLog, GetJob).

P1-19 server: POST /api/hosts/{id}/jobs creates the Job row,
  validates kind, dispatches via Hub.Send, audit-logs the action.

P1-20 agent runner: wraps restic.RunBackup with throttled progress
  emission. Sender abstraction was added to wsclient.Handler so
  background goroutines can keep replying after dispatch returns.

P1-21 server WS: dispatchAgentMessage now persists job.started,
  job.finished, log.stream into the database. Browser fan-out for
  live tailing lands with the UI work.

Agent gets repo_url + repo_password from agent.yaml in plaintext
for now (mode 0600, owned by service user); spec.md §7.3's keyring
storage moves there in P2. config.update over WS overrides the
in-memory copy (does not persist).

Build clean; all tests pass. End-to-end with a real restic still
needs a host that has restic installed — wire shape verified by
the existing hello/heartbeat round-trip test.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-01 00:45:04 +01:00
steve f34773b505 phase 1: WS transport, enrollment, agent that hellos and heartbeats
Lands the protocol layer end-to-end: an agent can be enrolled
through the operator UI, store credentials, dial back to the server
over WS, complete the protocol_version handshake, and stay
connected with periodic heartbeats.

Server side:
- P1-09 ws.Hub: one Conn per host_id, last-write-wins eviction,
  json envelope writer with a write mutex, reader, error envelopes.
- P1-09 ws.AgentHandler: bearer-auth, accept upgrade, hello-stage
  (10s deadline, protocol_version checked against
  api.MinAgentProtocolVersion → ErrProtocolTooOld with help URL on
  reject), main read loop, defer hub register/unregister.
- P1-10 POST /api/agents/enroll consumes a one-time token, mints a
  persistent agent bearer (sha-256 stored), creates a host row.
- P1-10 POST /api/enrollment-tokens (operator, session-auth)
  issues a 1h one-time token.
- P1-11 hello upserts agent_version + restic_version +
  protocol_version on the host row, flips status to online.
- P1-12 heartbeat touches last_seen_at; background sweeper marks
  hosts offline after 90s without one.
- store: hosts table accessors, host_schedule_version,
  enrollment_tokens FK on consumed_host dropped (audit-only field;
  the token gets burned before the host row exists).

Agent side:
- P1-13 internal/agent/config: yaml at /etc/restic-manager/agent.yaml,
  atomic Save (tmp+fsync+rename), Enrolled() helper.
- P1-15 internal/agent/wsclient: dial with bearer + optional
  TLS cert pinning (sha-256 of leaf), exponential backoff with
  jitter (1s → 60s cap), heartbeat goroutine, fatal handling for
  ErrProtocolTooOld.
- P1-15 wsclient.Enroll: HTTP POST /api/agents/enroll with sysinfo.
- P1-17 internal/agent/sysinfo: hostname/OS/arch/restic-version
  collection. restic detected by `restic version` parse; absent
  restic doesn't block startup.
- cmd/agent: -enroll-server / -enroll-token flags drive first-run
  enrollment then exit (so the install script can hand off to
  systemd to run the persistent service).

End-to-end smoke verified: bootstrap → login → issue token →
enroll → run agent → server logs `ws agent connected` with the
right host_id and protocol_version 1.

All tests still pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-01 00:39:00 +01:00
steve c9368de904 phase 0: project bootstrap
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P0-01 Go module + cmd/server + cmd/agent skeletons + internal/ tree
P0-02 LICENSE (PolyForm NC 1.0.0), README, CONTRIBUTING
P0-03 golangci-lint, pre-commit, .editorconfig, .gitignore
P0-04 Gitea Actions CI: test (race+coverage), lint, cross-platform build matrix
P0-05 Dockerfile.server (multi-stage, distroless/static), docker-compose.yml
P0-06 Makefile with build/test/lint/fmt/run/release targets

build, vet, test, and cross-compile to linux/{amd64,arm64} + windows/amd64
all verified locally.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-01 00:03:59 +01:00