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+---
+project: pbs-memory-dashboard
+type: tech-setup
+status: active
+tags:
+  - pbs
+  - docker
+  - streamlit
+  - flask
+  - automation
+  - production
+created: 2026-04-05
+updated: 2026-04-05
+path: PBS/Tech/Projects/
+---
+
+
+# PBS Memory Dashboard - Streamlit Spec
+
+## Overview
+
+Add a memory monitoring page to the existing PBS Streamlit dashboard
+(running inside pbs-api container). The page parses the host memory log
+file mounted into the container and renders interactive charts showing
+per-container memory usage over time.
+
+---
+
+## Data Source
+
+**Log file path inside container:**
+/var/log/pbs-monitoring/container-memory.log
+
+**Log format (one line per 5-minute interval):**
+2026-04-05 18:20:01 UTC | n8n:331.8MiB / 3.824GiB gitea:90.55MiB / 3.824GiB
+pbs-api:63.91MiB / 512MiB wordpress:501.6MiB / 1.953GiB traefik:43.43MiB /
+3.824GiB portainer:14.03MiB / 2GiB redis:12.4MiB / 640MiB
+wordpress_phpmyadmin:61.03MiB / 3.824GiB wordpress_mysql:419.9MiB / 768MiB
+wpcron:8.371MiB / 3.824GiB uptime-kuma:100.7MiB / 3.824GiB
+
+**Parsing notes:**
+- Split on " | " to get timestamp and container data
+- Timestamp format: "%Y-%m-%d %H:%M:%S UTC"
+- Each container entry format: name:usedMiB / limitGiB (or MiB)
+- Convert all memory values to MiB for consistency:
+  - If value ends in MiB: use as-is
+  - If value ends in GiB: multiply by 1024
+- Calculate usage percentage: (used / limit) * 100
+
+**Known containers to parse:**
+n8n, gitea, pbs-api, wordpress, traefik, portainer, redis,
+wordpress_phpmyadmin, wordpress_mysql, wpcron, uptime-kuma
+
+---
+
+## Page Layout
+
+### Section 1: Summary Cards (top of page)
+- One metric card per container showing:
+  - Current memory usage (MiB)
+  - Memory limit (MiB)
+  - Usage percentage
+  - Color code: green  80%
+- Special attention containers (tighter limits):
+  - wordpress: limit 1.953GiB (2000MiB)
+  - wordpress_mysql: limit 768MiB
+  - redis: limit 640MiB
+  - pbs-api: limit 512MiB
+
+### Section 2: Time Series Chart
+- Multi-line Plotly chart showing memory usage % over time
+- X axis: timestamp
+- Y axis: memory usage percentage (0-100%)
+- One line per container, with legend
+- Add horizontal reference lines at 50% (yellow) and 80% (red)
+- Default time range: last 24 hours
+- Add a time range selector: 6h, 24h, 7d, All
+
+### Section 3: Per-Container Drill Down
+- Selectbox to choose a single container
+- Show used MiB over time (not percentage) for that container
+- Show a horizontal line at the memory limit for that container
+
+### Section 4: Raw Data Table
+- Collapsible expander section
+- Show the parsed DataFrame with columns:
+  timestamp, container, used_mib, limit_mib, usage_pct
+- Allow sorting by column
+
+---
+
+## Sidebar Controls
+- Time range selector (6h, 24h, 7d, All) — drives Sections 2 and 3
+- Multi-select for containers to show/hide in the time series chart
+- Auto-refresh toggle (refresh every 5 minutes using st.rerun)
+
+---
+
+## Dependencies to Add (if not already present)
+- plotly
+- pandas
+
+Both should be installed in the existing UV environment.
+
+---
+
+## File Location
+Add as a new page in the existing Streamlit multipage structure.
+Suggested filename: pages/memory_dashboard.py
+
+---
+
+## Notes for Agent
+- The log file is read-only mounted at the path above
+- Parse the entire file fresh on each page load (file is not large)
+- Use st.cache_data with a short TTL (300 seconds) to avoid re-parsing on
+every widget interaction
+- Handle missing or malformed log lines gracefully with try/except
+- The auto-refresh should only trigger if the toggle is enabled in the
+sidebar
+
+
+...sent from Jenny & Travis
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