From f883908a7b10fecf999a5cadecc2e47e194fbafd Mon Sep 17 00:00:00 2001 From: Lucas Berger Date: Fri, 30 Jan 2026 21:44:54 -0500 Subject: [PATCH] docs(04-01): complete container log retrieval plan Tasks completed: 3/3 - Add logs command routing to workflow - Implement Docker logs API call with formatting - Handle Docker log stream binary format SUMMARY: .planning/phases/04-logs-intelligence/04-01-SUMMARY.md --- .planning/STATE.md | 22 +-- .../04-logs-intelligence/04-01-SUMMARY.md | 130 ++++++++++++++++++ 2 files changed, 143 insertions(+), 9 deletions(-) create mode 100644 .planning/phases/04-logs-intelligence/04-01-SUMMARY.md diff --git a/.planning/STATE.md b/.planning/STATE.md index 3329840..e948fb0 100644 --- a/.planning/STATE.md +++ b/.planning/STATE.md @@ -8,10 +8,10 @@ ## Current Position - **Milestone:** v1.0 — Conversational Docker Control -- **Phase:** 3 of 5 — Container Actions (COMPLETE) -- **Plan:** 4 of 4 complete -- **Status:** Phase 3 complete and verified -- **Last activity:** 2026-01-30 - Phase 3 verified (14/14 must-haves) +- **Phase:** 4 of 5 — Logs & Intelligence (IN PROGRESS) +- **Plan:** 1 of 2 executed +- **Status:** Phase 4 in progress - container log retrieval complete +- **Last activity:** 2026-01-30 - Completed 04-01-PLAN.md (container log retrieval) ## Progress @@ -19,10 +19,10 @@ Phase 1: Foundation [██████████] Complete (2/2 plans) Phase 2: Docker Integration [██████████] Complete (2/2 plans) Phase 3: Container Actions [██████████] Complete (4/4 plans) -Phase 4: Logs & Intelligence[░░░░░░░░░░] Not started +Phase 4: Logs & Intelligence[█████░░░░░] In progress (1/2 plans) Phase 5: Polish & Deploy [░░░░░░░░░░] Not started -Overall: [██████████] 60% +Overall: [███████░░░] 70% ``` ## Recent Decisions @@ -50,6 +50,10 @@ Overall: [██████████] 60% | Silent when no update | Only notify on actual image change, not when already up-to-date | 2026-01-30 | | Single match only for update | Update requires exact container name, no batch updates | 2026-01-30 | | Version from OCI labels | Check org.opencontainers.image.version, then version, then ID | 2026-01-30 | +| Docker logs API with tail parameter | More efficient than fetching all logs and filtering in code | 2026-01-30 | +| Binary stream header via charCodeAt | Docker multiplexed stream uses byte 0 values 1/2, strip 8 bytes | 2026-01-30 | +| Default 50 lines, cap at 1000 | Balance between useful context and Telegram limits | 2026-01-30 | +| Truncate at 3800 chars | Telegram limit is 4096, leave room for header and formatting | 2026-01-30 | ## Pending Todos @@ -62,10 +66,10 @@ Overall: [██████████] 60% ## Session Continuity - **Last session:** 2026-01-30 -- **Stopped at:** Phase 3 verified and complete +- **Stopped at:** Completed 04-01-PLAN.md (container log retrieval) - **Resume file:** None -- **Next step:** Plan Phase 4 - Logs & Intelligence -- **Resume command:** `/gsd:discuss-phase 4` or `/gsd:plan-phase 4` +- **Next step:** Execute 04-02-PLAN.md (Claude log analysis) +- **Resume command:** `/gsd:execute-plan .planning/phases/04-logs-intelligence/04-02-PLAN.md` --- *Auto-maintained by GSD workflow* diff --git a/.planning/phases/04-logs-intelligence/04-01-SUMMARY.md b/.planning/phases/04-logs-intelligence/04-01-SUMMARY.md new file mode 100644 index 0000000..0602426 --- /dev/null +++ b/.planning/phases/04-logs-intelligence/04-01-SUMMARY.md @@ -0,0 +1,130 @@ +--- +phase: 04-logs-intelligence +plan: 01 +subsystem: logs +tags: [docker-logs, telegram-bot, n8n, log-streaming] + +# Dependency graph +requires: + - phase: 02-docker-integration + provides: Docker API integration and container matching patterns + - phase: 03-container-actions + provides: Action command routing and fuzzy container matching +provides: + - Container log retrieval via Telegram commands + - Configurable line count (default 50, max 1000) + - Binary stream decoder for Docker logs API + - Formatted log output with monospace display +affects: [04-02-claude-analysis] + +# Tech tracking +tech-stack: + added: [] + patterns: + - "Docker logs API multiplexed stream decoding" + - "Telegram message truncation for long content" + +key-files: + created: [] + modified: + - n8n-workflow.json + +key-decisions: + - "Use Docker logs API with tail parameter for line-limited retrieval" + - "Strip 8-byte binary headers from Docker multiplexed stream" + - "Truncate at 3800 chars to stay within Telegram 4096 limit" + - "Default to 50 lines when not specified, cap at 1000 max" + +patterns-established: + - "Binary stream decoding: check charCodeAt(0) <= 2 for header presence" + - "Log formatting: 
 tags for monospace, HTML parse mode"
+
+# Metrics
+duration: 3min
+completed: 2026-01-30
+---
+
+# Phase 04 Plan 01: Container Log Retrieval Summary
+
+**Container log retrieval via Telegram with Docker API binary stream decoding and configurable line limits**
+
+## Performance
+
+- **Duration:** 3 min
+- **Started:** 2026-01-31T02:40:38Z
+- **Completed:** 2026-01-31T02:43:37Z
+- **Tasks:** 3
+- **Files modified:** 1
+
+## Accomplishments
+- Users can request logs for any container by name via Telegram
+- Configurable line count (default 50, max 1000 lines)
+- Docker logs API binary stream format properly decoded
+- Logs displayed in readable monospace format with truncation for Telegram limits
+
+## Task Commits
+
+Implementation was atomic - all tasks completed in single commit:
+
+1. **Tasks 1-3: Complete logs implementation** - `93c40fe` (feat)
+   - Task 1: Logs command routing
+   - Task 2: Docker logs API integration
+   - Task 3: Binary stream format handling
+
+**Note:** All three tasks were interdependent and completed together in a single atomic commit since they form a cohesive feature implementation.
+
+## Files Created/Modified
+- `n8n-workflow.json` - Added 11 new nodes for complete logs workflow:
+  - Parse Logs Command: Extract container name and line count from user message
+  - Docker List for Logs: Fetch containers for matching
+  - Match Logs Container: Fuzzy match container name
+  - Check Logs Match Count: Route based on match results
+  - Build Logs Command: Construct Docker API curl with tail parameter
+  - Execute Logs: Call Docker logs API
+  - Format Logs: Decode binary stream, truncate, add monospace formatting
+  - Send Logs Response: Reply to user via Telegram
+  - Error handlers: No match, multiple matches, Docker errors
+
+## Decisions Made
+
+**1. Docker logs API with tail parameter**
+- **Rationale:** More efficient than fetching all logs and filtering in code
+- **Implementation:** `http://localhost/v1.47/containers/{id}/logs?stdout=1&stderr=1&tail={lines}×tamps=1`
+
+**2. Binary stream header detection via charCodeAt(0)**
+- **Rationale:** Docker multiplexed stream uses byte 0 values 1 (stdout) or 2 (stderr)
+- **Implementation:** Check if `charCodeAt(0) <= 2` and length > 8, then strip first 8 bytes
+- **Robustness:** Works even if some lines lack headers (mixed format tolerance)
+
+**3. Default 50 lines, cap at 1000**
+- **Rationale:** Balance between useful context and Telegram message limits
+- **Safety:** 1000 line cap prevents excessive API calls and message truncation
+
+**4. Truncate at 3800 chars**
+- **Rationale:** Telegram limit is 4096, leave room for header and formatting tags
+- **UX:** Add "... (truncated)" indicator when limit hit
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+
+None - Docker logs API worked as expected, binary stream format handled correctly.
+
+## User Setup Required
+
+None - no external service configuration required.
+
+## Next Phase Readiness
+
+Ready for Phase 04 Plan 02 (Claude log analysis):
+- Log retrieval working and tested
+- Format suitable for Claude API input
+- Error handling in place for edge cases
+
+Logs are now available programmatically for Claude to analyze in next plan.
+
+---
+*Phase: 04-logs-intelligence*
+*Completed: 2026-01-30*