docs(03-04): complete container update plan
Tasks completed: 3/3 - Update command routing and container matching - Image pull and change detection - Container recreation workflow SUMMARY: .planning/phases/03-container-actions/03-04-SUMMARY.md Phase 3 complete - all container actions implemented
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Lucas Berger
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## Current Position
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- **Milestone:** v1.0 — Conversational Docker Control
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- **Phase:** 3 of 5 — Container Actions (IN PROGRESS)
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- **Plan:** 3 of 4 complete
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- **Status:** Plan 03-04 interrupted (rate limit), needs completion
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- **Last activity:** 2026-01-30 - Executing 03-04-PLAN.md (interrupted)
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- **Phase:** 3 of 5 — Container Actions (COMPLETE)
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- **Plan:** 4 of 4 complete
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- **Status:** Phase 3 complete, ready for Phase 4
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- **Last activity:** 2026-01-30 - Completed 03-04-PLAN.md
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## Progress
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```
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Phase 1: Foundation [██████████] Complete (2/2 plans)
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Phase 2: Docker Integration [██████████] Complete (2/2 plans)
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Phase 3: Container Actions [████████░░] 3/4 plans (Wave 4 interrupted)
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Phase 3: Container Actions [██████████] Complete (4/4 plans)
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Phase 4: Logs & Intelligence[░░░░░░░░░░] Not started
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Phase 5: Polish & Deploy [░░░░░░░░░░] Not started
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Overall: [██████░░░░] 55%
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Overall: [██████████] 60%
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```
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## Recent Decisions
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@@ -47,6 +47,9 @@ Overall: [██████░░░░] 55%
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| Batch limit of 4 containers | callback_data array with 4 short IDs fits in 64 bytes | 2026-01-30 |
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| Sequential batch execution | Single shell command with && chain, no n8n loops needed | 2026-01-30 |
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| RESULT_N:statusCode markers | Parseable output format for aggregating batch results | 2026-01-30 |
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| Silent when no update | Only notify on actual image change, not when already up-to-date | 2026-01-30 |
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| Single match only for update | Update requires exact container name, no batch updates | 2026-01-30 |
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| Version from OCI labels | Check org.opencontainers.image.version, then version, then ID | 2026-01-30 |
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## Pending Todos
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@@ -59,10 +62,10 @@ Overall: [██████░░░░] 55%
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## Session Continuity
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- **Last session:** 2026-01-30
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- **Stopped at:** Wave 4 execution interrupted (rate limit hit during 03-04 agent spawn)
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- **Stopped at:** Completed 03-04-PLAN.md (Phase 3 complete)
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- **Resume file:** None
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- **Next step:** Complete plan 03-04 (Container Update Action)
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- **Resume command:** `/gsd:execute-phase 3` (will skip completed plans 01-03, execute 04)
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- **Next step:** Begin Phase 4 - Logs & Intelligence
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- **Resume command:** `/gsd:execute-phase 4`
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---
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*Auto-maintained by GSD workflow*
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@@ -0,0 +1,115 @@
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---
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phase: 03-container-actions
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plan: 04
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subsystem: api
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tags: [docker-api, container-update, telegram, n8n, image-pull, container-recreation]
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# Dependency graph
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requires:
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- phase: 03-01-basic-actions
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provides: Container lifecycle API patterns, fuzzy matching, action routing structure
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provides:
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- Container update command (pull new image + recreate)
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- Image digest comparison for change detection
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- Silent no-update behavior
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- Container config preservation during recreation
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affects: [04-logs, 05-polish]
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# Tech tracking
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tech-stack:
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added: []
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patterns:
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- "Image pull via POST /images/create?fromImage=X"
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- "Image digest comparison for update detection"
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- "Container config extraction from inspect endpoint"
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- "NetworkingConfig preservation from NetworkSettings"
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key-files:
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created: []
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modified:
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- n8n-workflow.json
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key-decisions:
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- "Silent when no update available - only notify on actual image change"
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- "Single container match only for update - no batch updates"
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- "Version detection from OCI labels with ID fallback"
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- "Preserve Hostname/Domainname removal during container recreation"
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patterns-established:
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- "Multi-step container operations: inspect -> modify -> recreate"
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- "Image version extraction from org.opencontainers.image.version or version labels"
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- "Sequential container lifecycle: stop -> remove -> create -> start"
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# Metrics
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duration: 8min
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completed: 2026-01-30
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---
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# Phase 03 Plan 04: Container Update Action Summary
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**Container update workflow with image pull, digest comparison, and config-preserving recreation with version change reporting**
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## Performance
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- **Duration:** 8 min
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- **Started:** 2026-01-30T18:24:33Z
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- **Completed:** 2026-01-30T18:33:00Z
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- **Tasks:** 3
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- **Files modified:** 1
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## Accomplishments
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- Update command routing with single-match-only requirement
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- Image pull and digest comparison for detecting actual updates
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- Container recreation preserving all configuration (Config, HostConfig, Networks)
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- Version change display from image labels or ID substring
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- Silent behavior when image already up-to-date
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## Task Commits
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All three tasks were implemented together (continuation of interrupted session):
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1. **Tasks 1-3: Complete update workflow** - `04321c1` (feat)
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- Update command routing and container matching
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- Image pull and change detection
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- Container recreation workflow
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## Files Created/Modified
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- `n8n-workflow.json` - Extended with 29 new nodes for update flow:
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- Parse Update Command, Docker List for Update, Match Update Container
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- Check Update Match Count, Handle Update Multiple, Send Update Error/No Match/Multiple
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- Build Inspect Command, Inspect Container, Parse Container Config
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- Build Pull Command, Pull Image, Build Image Inspect, Inspect New Image
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- Compare Digests, Check If Update Needed
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- Build Stop Command, Stop Container, Verify Stop Build Remove
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- Remove Container, Build Create Body, Build Create Command
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- Create Container, Parse Create Response
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- Build Start Command, Start New Container
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- Format Update Result, Send Update Result
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## Decisions Made
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- **Silent on no-update:** When image digest hasn't changed, send no message (per CONTEXT.md)
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- **Single match only:** Update command requires exact container name; multiple matches show disambiguation message
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- **Version detection hierarchy:** Check org.opencontainers.image.version label, then version label, then use image ID substring
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- **NetworkingConfig preservation:** Extract from NetworkSettings.Networks with IPAMConfig, Links, and Aliases
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## Deviations from Plan
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None - plan executed exactly as written.
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## Issues Encountered
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- Session was interrupted during initial execution (rate limit)
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- Nodes were created but connections were missing
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- Connections were added to complete the workflow wiring
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- All work committed as single comprehensive commit
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## User Setup Required
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None - no external service configuration required.
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## Next Phase Readiness
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- All container actions complete (start, stop, restart, update)
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- Phase 03 fully complete
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- Ready for Phase 04: Logs & Intelligence
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---
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*Phase: 03-container-actions*
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*Completed: 2026-01-30*
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