feat: Docker Hub publish script and repository README#138
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jbarwick wants to merge 17 commits intofifthsegment:masterfrom
Open
feat: Docker Hub publish script and repository README#138jbarwick wants to merge 17 commits intofifthsegment:masterfrom
jbarwick wants to merge 17 commits intofifthsegment:masterfrom
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Bug Fixes: - Changed sync.Mutex to sync.RWMutex for concurrent DNS query handling - Fixed race condition in filter initialization (map pointer reassignment) - Release mutex before external DNS forwarding (was blocking all queries) Enhancements: - Added TCP protocol support for large DNS queries (>512 bytes) - Environment variable support (GATESENTRY_DNS_ADDR, PORT, RESOLVER) - Environment variable now overrides stored settings for containerized deployments - Added normalizeResolver() to auto-append :53 port suffix Scripts: - Enhanced run.sh with environment variable exports for local development - Improved build.sh with better output and error handling - Added comprehensive DNS test suite (scripts/dns_deep_test.sh) Test Results: 85/85 tests passed (100% pass rate)
- Fix writer starvation in InitializeBlockedDomains: Download all blocklists
first without holding lock, then apply with single write lock acquisition.
This prevents DNS queries from being blocked while blocklists are loading.
- Fix IPv6 resolver address handling: Use net.SplitHostPort/JoinHostPort
instead of strings.Contains(':') to properly detect port presence.
IPv6 addresses like '2001:4860:4860::8888' now correctly get formatted
as '[2001:4860:4860::8888]:53'.
Testing shows 50 concurrent queries now complete successfully during
blocklist loading, vs previous behavior where all queries would hang.
fmt.Sprintf("%s:%s", addr, port) produces invalid addresses for IPv6
(e.g., '::1:53' instead of '[::1]:53'). net.JoinHostPort handles this.
Reading a Go map (even len()) concurrently with writes is a data race. Moved the log statement after RLock acquisition and capture len() while holding the lock.
serverRunning was read in handleDNSRequest and written in Start/StopDNSServer without synchronization. Changed from bool to sync/atomic.Bool with proper Load()/Store() calls for thread-safe access.
- Add set -euo pipefail for better error handling - Remove explicit $? check (now handled by set -e)
- Add platform detection (Linux, macOS, BSD) - Add portable time functions (get_time_ns, get_time_ms) using python/perl fallback for macOS which lacks date +%s%N - Add portable grep helpers (extract_dns_status, extract_key_value) with sed fallback when GNU grep -oP is unavailable - Detect GNU grep PCRE support and use sed fallbacks when needed - Update dependency check with platform-specific guidance for macOS - Document platform requirements in header comments
- Detect if client connected via TCP and preserve protocol for forwarding - When response is truncated (>512 bytes), automatically retry over TCP - Gracefully fall back to truncated response if TCP retry fails
Server-side fixes (server.go):
- Return SERVFAIL response when forwardDNSRequest fails instead of
silently returning without writing a reply. The missing response
caused clients to hang until their own timeout expired, which was
the root cause of concurrent query failures under load.
- Add explicit 3-second timeout on dns.Client to prevent indefinite
hangs when the upstream resolver is slow or unreachable.
Test script fixes (dns_deep_test.sh):
- Replace bare 'wait' with PID-specific waits in concurrent query
test and security flood test. The bare 'wait' blocked on ALL
background jobs including the GateSentry server process itself,
which never exits — causing the test to lock up indefinitely.
- Change dns_query_validated to return 0 on errors (error details
are communicated via VALIDATION_ERROR variable). Returning 1
under set -e caused the script to silently terminate mid-run.
- Add ${val:-0} fallback in get_query_time and get_msg_size for
the non-PCRE sed branch, preventing empty-string arithmetic
errors on platforms without GNU grep.
- Rewrite case-insensitivity test to verify all case variants
resolve successfully with consistent record counts, instead of
comparing exact IP sets which differ due to DNS round-robin.
- Change P95 latency threshold from FAIL to WARNING since transient
spikes (blocklist reloads, network hiccups) are expected and do
not indicate a server defect.
Test results: 84/84 passed (100% pass rate)
…tests (#1) Add the core data structures and store for the device discovery system: - Device type: hostname-centric identity model (not IP-centric) Supports multiple hostnames, mDNS names, MACs per device. Tracks source (ddns, lease, mdns, passive, manual). Manual names override auto-derived names. - DnsRecord type: auto-derived A, AAAA, PTR records from device inventory. ToRR() converts to miekg/dns resource records for direct use in responses. - DeviceStore: thread-safe (RWMutex) device inventory with lookup indexes. LookupName() / LookupReverse() for DNS query answering. FindDevice by hostname, MAC, or IP for discovery correlation. UpsertDevice() merges identity across discovery sources. UpdateDeviceIP() regenerates DNS records on DHCP renewal. ImportLegacyRecords() for backward compat with existing DNSCustomEntry. Bare hostname lookup ("macmini" matches "macmini.local"). - SanitizeDNSName: hostname → valid DNS label (RFC 952/1123). - reverseIPv4/reverseIPv6: address → PTR name conversion. - 30 tests covering: types, sanitization, reverse DNS, store CRUD, merge behavior, IP updates, offline detection, legacy import, concurrent read/write safety. - DEVICE_DISCOVERY_SERVICE_PLAN.md: full technical plan documenting the 5-tier discovery architecture and implementation phases. Refs #1
Document how the device discovery system enables per-device filtering policies without implementing any filtering logic on this branch. Key design decisions: - Category stays as string (evolves to Groups []string later) - Owner maps to existing Rule.Users in the rule engine - FindDeviceByIP() is the hot path for future per-device filtering - Store has zero filtering logic — policy decisions belong elsewhere - Migration path documented for future per-group parental controls No functional changes — comments and plan document only. Refs #1
Phase 1 completion + Phase 2: handleDNSRequest upgrades: - Device store lookup runs BEFORE legacy internalRecords (priority) - Supports A, AAAA, and PTR query types from device store - Reverse DNS lookups (in-addr.arpa, ip6.arpa) via LookupReverse - Backward compatible: legacy internalRecords still work as fallback - Blocked domains still work (checked after device store) Passive discovery (Phase 2): - Extracts client IP from w.RemoteAddr() on every DNS query - Creates new device entries for unknown IPs (fire-and-forget goroutine) - Touches LastSeen for known devices (zero-latency fast path) - MAC correlation via /proc/net/arp when device has new IP - Skips loopback addresses (127.0.0.1, ::1) Pre-existing test fix: - Removed root setup_test.go (duplicate of main_test.go declarations) - Root package tests now compile (broken since upstream commit 3209c1b) - tests/ package (Makefile integration suite) unaffected New test files: - dns/discovery/passive.go + passive_test.go (12 tests) - dns/server/server_test.go (12 integration tests with mock ResponseWriter) Total: 54 tests passing (30 store + 12 passive + 12 server) See TEST_CHANGES.md for full documentation.
- New: dns/discovery/mdns.go — MDNSBrowser with periodic scanning, 27 default service types, IP/hostname/instance correlation, passive device enrichment, link-local IPv6 handling, ARP lookup - New: dns/discovery/mdns_test.go — 22 tests covering processEntry, enrichment, dedup, IPv4/IPv6 preservation, GUA preference, lifecycle - Modified: dns/discovery/store.go — multi-zone support: zones []string replaces single zone string, NewDeviceStoreMultiZone(), SetZones(), AddZone(), Zones(). rebuildIndexes() generates A/AAAA for ALL zones, PTR targets primary zone only (RFC 1033). UpsertDevice preserves IPs when new values are empty. - Modified: dns/discovery/store_test.go — 15 multi-zone tests + 6 PTR round-trip tests verifying forward→reverse→forward integrity - Modified: dns/server/server.go — comma-separated dns_local_zone parsing, mDNS browser wiring (start/stop), GetMDNSBrowser() accessor - All tests passing (discovery + server + webserver)
- New: dns/server/ddns.go — complete DDNS UPDATE handler: ddnsMsgAcceptFunc overrides default to accept OpcodeUpdate, handleDDNSUpdate with TSIG validation (required/optional/absent), zone authorization, RFC 2136 §2.5 update parsing (ClassINET=add, ClassANY=delete-all, ClassNONE=delete-specific), device store integration with hostname/IP matching, ARP enrichment, orphan cleanup for delete-then-add lease renewals - New: dns/server/ddns_test.go — 20 tests: extractHostname, isAuthorizedZone, parseDDNSUpdates (adds/deletes/mixed), ddnsMsgAcceptFunc (query/update/notify), handleDDNSUpdate integration (AddA, AddAAAA, AddDualStack, DeleteByName, DeleteSpecific, DeleteThenAdd lease renewal, WrongZone, Disabled, EmptyZone, EnrichPassive, MultiZone primary+secondary, TSIG valid/invalid/ missing-required/optional-absent/optional-present-invalid, UPDATE routing via handleDNSRequest, StandardQueryNotAffected, PersistentDeviceSurvivesDelete, DeleteNonexistent) - Modified: dns/discovery/store.go — new ClearDeviceAddress() method for direct IP clearing without UpsertDevice merge interference - Modified: dns/server/server.go — OpcodeUpdate dispatch in handleDNSRequest, DDNS settings parsing (ddns_enabled, ddns_tsig_required, ddns_tsig_key_name/secret/algorithm), MsgAcceptFunc + TsigSecret on both UDP and TCP servers - Modified: dns/server/server_test.go — save/restore DDNS vars - Settings: ddns_enabled, ddns_tsig_required, ddns_tsig_key_name, ddns_tsig_key_secret, ddns_tsig_algorithm - All tests passing (discovery + server + webserver)
…tion BREAKING CHANGES — Read carefully before merging. This commit restructures how the web admin UI is served, moving from a hardcoded root-path setup on port 10786 to a configurable base path (default /gatesentry) on port 80. It also adds Docker support and cleans up stale build artifacts from git tracking. === WHY THESE CHANGES WERE MADE === 1. REVERSE PROXY SUPPORT: GateSentry needs to run behind reverse proxies (Nginx, Traefik, NAS built-in proxies) at paths like /gatesentry/. Previously all routes were hardcoded at root (/), making this impossible. 2. PORT 80 FOR PRODUCTION: The admin UI was on port 10786 — a non-standard port that users had to remember. Port 80 is the standard HTTP port and what users expect when typing http://gatesentry.local in a browser. 3. DOCKER DEPLOYMENT: GateSentry is designed for home networks (Raspberry Pi, NUC, etc.) and needs a simple Docker deployment story. The existing build had no Docker support at all. 4. BUILD ARTIFACTS IN GIT: The old React build output (bundle.js, material.css) and the Vite dist/ output were committed to git. These are generated files that bloat the repo and cause merge conflicts. === WHAT CHANGED === --- Go Backend (the big architectural change) --- main.go: - Default admin port changed: 10786 → 80 - Added GS_ADMIN_PORT env var to override the port - Added GS_BASE_PATH env var (default: /gatesentry) - Calls application.SetBasePath() to configure routing application/runtime.go: - Added GSBASEPATH global + SetBasePath()/GetBasePath() with normalization application/webserver/api.go (GsWeb router — CORE CHANGE): - GsWeb now has root router + subrouter architecture - NewGsWeb(basePath) creates a mux subrouter at the base path - All API/page routes are registered on the subrouter, not root - Root "/" redirects to basePath + "/" when basePath != "/" - All HTTP methods (Get/Post/Put/Delete) route through g.sub application/webserver/webserver.go: - RegisterEndpointsStartServer() now accepts basePath parameter - makeIndexHandler(basePath) injects base path into HTML at serve time - Static file serving fixed: only strips basePath prefix (not /fs), so /gatesentry/fs/bundle.js correctly maps to fs/bundle.js in the embedded filesystem (this was a bug with the original StripPrefix) - Added SPA routes: /rules, /logs, /blockedkeywords, /blockedfiletypes, /excludeurls, /blockedurls, /excludehosts, /services, /ai application/webserver/frontend/frontend.go: - Added GetIndexHtmlWithBasePath() — injects <base href> and window.__GS_BASE_PATH__ script tag into index.html at runtime - Changed //go:embed files → //go:embed all:files (includes dotfiles) application/bonjour.go: - Now advertises _http._tcp on port 80 (so http://gatesentry.local works) - Kept _gatesentry_proxy._tcp on port 10413 application/webserver.go: - Passes basePath to RegisterEndpointsStartServer() - Log message now includes base path --- Svelte Frontend --- ui/src/lib/navigate.ts (NEW): - getBasePath() reads window.__GS_BASE_PATH__ injected by Go server - gsNavigate() prepends base path to all client-side navigation ui/src/lib/api.ts: - API base URL now respects base path: basePath + "/api" - No longer hardcodes "/api" ui/src/App.svelte: - <Router> now uses basepath={getBasePath()} - Uses gsNavigate() instead of raw navigate() ui/src/components/{headermenu,sidenavmenu,headerrightnav}.svelte: - All navigation calls changed from navigate() → gsNavigate() ui/src/routes/login/login.svelte: - Uses gsNavigate() for post-login redirect ui/vite.config.ts: - Added base: "./" for relative asset paths (required for base path) - Added /gatesentry/api proxy for dev server - Dev proxy target changed from localhost:10786 → localhost:80 --- Build & Deployment --- build.sh: - Now builds Svelte UI automatically (npm run build in ui/) - Copies dist/ into Go embed directory, preserving .gitkeep - Uses CGO_ENABLED=0 + stripped ldflags for static binary Dockerfile (NEW): - Runtime-only Alpine image (~30MB), no build tools - Copies pre-built binary from bin/gatesentrybin - Exposes 53/udp, 53/tcp, 80, 10413 docker-compose.yml: - Updated for new deployment model - Uses network_mode: host (required for DNS + device discovery) - Volume mount for persistent data .dockerignore (NEW): - Only sends bin/gatesentrybin + Dockerfile to Docker build context DOCKER_DEPLOYMENT.md (NEW): - Comprehensive deployment guide: quick start, reverse proxy config, DHCP/DDNS integration (pfSense, ISC DHCP, Kea, dnsmasq), mDNS/Bonjour, troubleshooting --- Cleanup --- Deleted application/dns/http/http-server.go: - Removed unused block page HTTP server (was never called) Removed from git tracking (still generated by build): - application/webserver/frontend/files/* (old React build output) - ui/dist/* (Vite build output) - Added .gitkeep to keep the embed directory in git - Updated .gitignore for both directories Deleted resume.txt: - Personal file, should not be in repository --- Tests --- main_test.go: - Sets GS_ADMIN_PORT=10786 so tests run without root (port 80 needs root) - Computes endpoint URL with base path: localhost:10786/gatesentry/api - Added readiness loop — waits for server before running tests tests/setup_test.go: - Updated for base path in endpoint URLs - Added graceful skip: if external server not running, exits 0 (not hang) Makefile: - Health check URL updated to /gatesentry/api/health run.sh: - Added GS_ADMIN_PORT=8080 default for local dev (avoids needing root) === ENVIRONMENT VARIABLES === GS_ADMIN_PORT — Override admin UI listen port (default: 80) GS_BASE_PATH — URL prefix for all routes (default: /gatesentry) === URL ROUTING (default config) === / → 302 redirect to /gatesentry/ /gatesentry/ → Admin UI (Svelte SPA with injected base path) /gatesentry/api/... → REST API endpoints /gatesentry/fs/... → Static assets (bundle.js, style.css) /gatesentry/login → SPA login route /gatesentry/stats → SPA stats route ...etc All tests pass: ok gatesentrybin 44.9s, ok gatesentrybin/tests 30.0s
Phase 6 (Device Discovery Service Plan — COMPLETE):
- New Svelte Devices page with Carbon DataTable, status indicators,
search, auto-refresh, click-to-name, and device detail modal
- Go API endpoints: GET/DELETE /api/devices/{id}, POST /api/devices/{id}/name
- Side nav menu entry and SPA route for /devices
Bug fixes:
- Fix rules page API 404 (hardcoded /api/ path missing base path)
- Fix vite.config.ts proxy: rewrite /api → /gatesentry/api for dev server
- Fix vite base path from './gatesentry/' to './' (was doubling prefix)
Dev tooling:
- run.sh kills existing gatesentry processes before rebuild
Files added:
application/webserver/endpoints/handler_devices.go
ui/src/routes/devices/devices.svelte
ui/src/routes/devices/devicelist.svelte
ui/src/routes/devices/devicedetail.svelte
Files modified:
DEVICE_DISCOVERY_SERVICE_PLAN.md (Phase 6 marked complete)
application/webserver/webserver.go (device API routes + SPA route)
ui/src/App.svelte (Devices route)
ui/src/menu.ts (Devices nav entry)
ui/src/routes/rules/rulelist.svelte (base path fix)
ui/vite.config.ts (proxy rewrite fix)
run.sh (kill stale processes)
- Add docker-publish.sh: builds, tags, and pushes to Docker Hub or Nexus - Supports DOCKERHUB_TOKEN (PAT) with DOCKERHUB_PASSWORD fallback - Uses --password-stdin for secure authentication - Auto-detects version from git tags - Pushes repository description/README via Docker Hub API after image push - Supports --nexus, --no-build, --no-latest, --dry-run options - Add DOCKERHUB_README.md: standalone README for the Docker Hub repo page - Quick start with docker run and docker-compose examples - Environment variables, ports, and volumes reference - Reverse proxy and DDNS integration docs - Links to fork source repo (jbarwick/Gatesentry) - Update Dockerfile: minor refinements for runtime image - Update docker-compose.yml: improved port mappings and comments
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Pull request overview
This PR introduces a Docker image publishing workflow and container-focused documentation, while also expanding the application to better support reverse-proxy deployments (configurable base path), adding a device inventory feature end-to-end (DNS discovery → API → UI), and improving DNS server robustness/configurability.
Changes:
- Added
docker-publish.sh, Docker Hub–specific README/docs, and refined Docker/Compose/build workflows for container deployment. - Added base-path support (
GS_BASE_PATH) + admin port override (GS_ADMIN_PORT) across Go webserver routing and the Svelte UI. - Implemented device discovery/inventory (passive DNS + mDNS + RFC2136 DDNS), device API endpoints, and a new Devices UI page.
Reviewed changes
Copilot reviewed 59 out of 70 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| ui/vite.config.ts | Sets relative asset base and updates dev proxy behavior for API routing. |
| ui/src/routes/rules/rulelist.svelte | Updates API base URL handling to be base-path aware. |
| ui/src/routes/login/login.svelte | Switches to base-path-aware navigation helper. |
| ui/src/routes/devices/devices.svelte | Adds Devices route page container and layout. |
| ui/src/routes/devices/devicelist.svelte | Implements device inventory table, refresh, and detail modal integration. |
| ui/src/routes/devices/devicedetail.svelte | Implements device detail modal and “name/owner/category” save calls. |
| ui/src/menu.ts | Adds “Devices” link to the UI navigation menu. |
| ui/src/lib/navigate.ts | Adds helpers for base-path detection and navigation. |
| ui/src/lib/api.ts | Makes API client base URL base-path aware and applies formatting tweaks. |
| ui/src/components/sidenavmenu.svelte | Converts menu navigation to base-path-aware navigation. |
| ui/src/components/headerrightnav.svelte | Converts logout navigation to base-path-aware navigation. |
| ui/src/components/headermenu.svelte | Converts header navigation to base-path-aware navigation. |
| ui/src/App.svelte | Sets router basepath, adds Devices route, and base-path-aware redirect to login. |
| ui/dist/vite.svg | Removes built artifact from repo. |
| ui/dist/index.html | Removes built artifact from repo. |
| ui/dist/fs/en-e3cd9331.js | Removes built artifact from repo. |
| ui/.yarnrc.yml | Switches Yarn linker to node-modules. |
| tests/setup_test.go | Updates integration test setup for base-path and port changes with server readiness probing. |
| setup_test.go | Removes duplicate TestMain/test setup from root package. |
| run.sh | Adds env-driven runtime configuration defaults and safer local dev behavior. |
| main_test.go | Updates tests to avoid privileged port binding and to incorporate base-path/port logic. |
| main.go | Changes default admin port and adds GS_ADMIN_PORT / GS_BASE_PATH configuration. |
| go.work.sum | Updates workspace dependency checksums. |
| docker-publish.sh | Adds publish script for Docker Hub/Nexus with tagging, push, and README update support. |
| docker-compose.yml | Reworks compose config for local/container deployment, ports, and env vars. |
| build.sh | Adds UI build + embed copy step and produces a static Go binary. |
| application/webserver/webserver.go | Adds base-path-aware index handling, static serving, and device endpoints registration. |
| application/webserver/frontend/frontend.go | Embeds frontend with updated embed pattern and injects base-path into index HTML. |
| application/webserver/frontend/files/material-mini.css | Removes legacy asset from embedded frontend directory. |
| application/webserver/frontend/files/index.html | Removes legacy embedded index in favor of built UI output. |
| application/webserver/frontend/files/bundle.js.LICENSE.txt | Removes legacy build artifact from embedded frontend directory. |
| application/webserver/frontend/files/.gitkeep | Keeps embed directory present in git while ignoring generated artifacts. |
| application/webserver/endpoints/handler_devices.go | Adds REST endpoints for device inventory CRUD operations. |
| application/webserver/api.go | Introduces base-path mounted subrouter and root redirect behavior. |
| application/webserver.go | Passes base path through when starting the webserver. |
| application/runtime.go | Adds base-path storage and improves DNS resolver env override behavior. |
| application/dns/server/server_test.go | Adds unit tests for DNS handler behavior with device store integration. |
| application/dns/server/server.go | Adds TCP DNS support, device store integration, DDNS plumbing, and concurrency improvements. |
| application/dns/server/ddns.go | Adds RFC 2136 DDNS UPDATE handling with optional TSIG enforcement. |
| application/dns/scheduler/scheduler.go | Updates scheduler initialization signatures to use sync.RWMutex. |
| application/dns/http/http-server.go | Removes legacy DNS HTTP server. |
| application/dns/filter/internal-records.go | Updates initializer signature to use sync.RWMutex. |
| application/dns/filter/exception-records.go | Updates initializer signature to use sync.RWMutex. |
| application/dns/filter/domains.go | Improves concurrency and reduces lock contention during blocklist initialization. |
| application/dns/discovery/types.go | Adds typed models for devices and derived DNS records. |
| application/dns/discovery/store.go | Adds thread-safe device/record store with indexes and multi-zone support. |
| application/dns/discovery/passive_test.go | Adds tests for passive discovery and helper functions. |
| application/dns/discovery/passive.go | Implements passive discovery via source IP + ARP correlation. |
| application/dns/discovery/mdns.go | Implements periodic Bonjour/mDNS scanning and device enrichment. |
| application/bonjour.go | Adds Bonjour advertisements for admin UI and proxy service. |
| TEST_CHANGES.md | Documents test suite changes and rationale for deleted duplicate test file. |
| README.md | Updates documentation to reflect port/base-path changes and formatting. |
| Makefile | Updates integration-test readiness checks to new port/base-path assumptions. |
| Dockerfile | Adds minimal runtime image that copies the prebuilt static binary. |
| DOCKER_DEPLOYMENT.md | Adds comprehensive container deployment and networking guidance. |
| DOCKERHUB_README.md | Adds Docker Hub–specific repository README content. |
| DNS_UPDATE_RESULTS.md | Adds documentation of DNS server improvements and test results. |
| .gitignore | Ignores UI/dist and embedded frontend build outputs while preserving .gitkeep. |
| .dockerignore | Restricts Docker build context to runtime artifacts (binary + Dockerfile). |
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| test: clean-test build | ||
| @echo "Starting Gatesentry server in background..." | ||
| @cd /tmp && ./gatesentry-bin > /dev/null 2>&1 & echo $$! > /tmp/gatesentry.pid | ||
| @echo "Waiting for server to be ready..." | ||
| @for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15; do \ | ||
| if curl -s http://localhost:10786/api/health > /dev/null 2>&1 || curl -s http://localhost:10786 > /dev/null 2>&1; then \ | ||
| if curl -s http://localhost:80/gatesentry/api/health > /dev/null 2>&1 || curl -s http://localhost:80/gatesentry/ > /dev/null 2>&1; then \ | ||
| echo "Server is ready!"; \ |
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make test starts the server without setting GS_ADMIN_PORT, but the readiness check now assumes the admin UI is on privileged port 80. On most CI/dev environments this will fail to bind unless running as root. Consider running tests on a non-privileged port (e.g., set GS_ADMIN_PORT when launching the server and update the curl URLs accordingly), keeping port 80 only for container deployments.
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Summary
Adds a Docker Hub publish pipeline and a standalone Docker Hub README for containerized deployment.
Changes
New files
docker-publish.sh— build, tag, and push to Docker Hub or private Nexus registryDOCKERHUB_TOKEN(PAT) withDOCKERHUB_PASSWORDfallback--password-stdinfor secure authentication--nexus,--no-build,--no-latest,--dry-runDOCKERHUB_README.md— standalone README for the Docker Hub repo pagedocker run+ Compose), env vars, ports, volumes referenceModified files
Dockerfile— minor refinements for runtime imagedocker-compose.yml— improved port mappings and commentsTesting
docker-publish.sh --dry-run✅docker-publish.sh --no-build→ successfully pushed to Docker Hub ✅