Explorer + Snap: nginx /snap 200, runbook, apply-nginx script, verify docs

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
defiQUG
2026-02-11 12:44:05 -08:00
parent b1415f15fc
commit 01e126a868
6 changed files with 220 additions and 7 deletions

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RUNBOOK.md Normal file
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# Explorer + Snap VMID 5000 Runbook
Short runbook for building, deploying, and verifying the explorer and Chain 138 Snap site on VMID 5000.
## Prerequisites
- Access to Proxmox host that runs VMID 5000 (e.g. `pct` or SSH to `PROXMOX_HOST_R630_02`).
- Explorer repo: `explorer-monorepo`. Snap repo: `metamask-integration/chain138-snap`.
## 1. Build Snap companion site (pathPrefix /snap)
From **chain138-snap** repo root:
```bash
GATSBY_PATH_PREFIX=/snap GATSBY_BUILD_SHA=$(git rev-parse --short HEAD) pnpm --filter site run build
```
Optional: `GATSBY_SNAP_API_BASE_URL=https://your-api.com` for production market/bridge/swap.
Output: `packages/site/public/` and `static/version.json`.
## 2. Deploy Snap site to VMID 5000
From **chain138-snap**:
```bash
./scripts/deploy-snap-site-to-vmid5000.sh --build
# Or: ./scripts/deploy-snap-site-to-vmid5000.sh (existing build)
```
Deploys to `/var/www/html/snap/` and saves a rollback tarball.
## 3. Nginx on VMID 5000
**From Proxmox host (one command):** `bash scripts/apply-nginx-snap-vmid5000.sh` (from explorer-monorepo). Or run **inside VMID 5000**: `bash scripts/fix-nginx-serve-custom-frontend.sh`. Configures `/snap`, `/snap/`, `/api/`, explorer root. Then: `nginx -t && systemctl reload nginx`.
## 4. Verification
- **Snap only:** `cd metamask-integration/chain138-snap && ./scripts/verify-snap-site-vmid5000.sh [BASE_URL]`
- **Full (explorer + API + Snap):** `cd explorer-monorepo && ./scripts/verify-vmid5000-all.sh [BASE_URL]`
BASE_URL defaults to https://explorer.d-bis.org. After applying the nginx fix, `/snap` and `/snap/` should return **200** with content.
## 5. Rollback Snap site
Inside VM: `tar -xf /var/www/html/snap-rollback.tar -C /var/www/html/snap && chown -R www-data:www-data /var/www/html/snap`
From host: use `/tmp/snap-site-last.tar` and `pct push` + `pct exec` to extract into `/var/www/html/snap`.
## 6. Health / version
- Snap version: https://explorer.d-bis.org/snap/version.json
- Explorer health: https://explorer.d-bis.org/health
## 7. Troubleshooting
- **502 on /api/:** Blockscout not on port 4000. See `docs/EXPLORER_API_ACCESS.md` and `scripts/fix-502-blockscout.sh`.
- **Snap 404/blank:** Nginx needs `location /snap/` and `location = /snap`; re-run `fix-nginx-serve-custom-frontend.sh` and redeploy Snap site.
- **Market/Bridge/Swap not loading:** Set `GATSBY_SNAP_API_BASE_URL`, rebuild, redeploy.
**Monitoring (optional):** Run `verify-vmid5000-all.sh` on a schedule (e.g. cron) or after deploys; alert if the script exits non-zero. Use `/snap/version.json` and `/health` for load balancer or uptime checks.
See `docs/EXPLORER_API_ACCESS.md` and `metamask-integration/chain138-snap/DEPLOY_VMID5000.md`.

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The frontend is reachable at **https://explorer.d-bis.org** (FQDN) or by **VM IP** (**http://192.168.11.140**). In both cases it needs the **Blockscout v2 API** at the same origin under `/api/`. If you see **502 Bad Gateway**, **no blocks/transactions feeds**, or "Failed to load", the API may be unreachable. Use this checklist to verify and restore access.
**See also:** [EXPLORER_API_REFERENCE.md](EXPLORER_API_REFERENCE.md) for the list of Blockscout v2 endpoints used by the frontend.
---
## No feeds (blocks/transactions empty or stuck on “Loading…”)
@@ -217,15 +219,25 @@ if ($request_method = OPTIONS) {
From the repo (Proxmox host or inside VMID 5000):
```bash
cd /home/intlc/projects/proxmox/explorer-monorepo
bash scripts/verify-explorer-api-access.sh
cd /path/to/explorer-monorepo
bash scripts/verify-explorer-api-access.sh [BASE_URL]
```
The script checks:
- Blockscout (or API) responding on port 4000 (when run inside the VM).
- Nginx serving `/api/` (local and, if BASE_URL set, public URL).
- HTTP 200 on `/api/v2/stats` and optionally `/api/v2/blocks`.
- Nginx serving `/api/` and having `location /snap/` (when run inside the VM or with `pct`).
- HTTP 200 on `/api/v2/stats`, `/api/v2/blocks`, `/api/v2/transactions`.
- Explorer frontend at `/` returns 200.
- Chain 138 Snap companion site at `/snap/` returns 200 or 301 and contains expected content when 200.
**Full verification (single place for all checks — API, explorer, Snap):**
```bash
bash scripts/verify-vmid5000-all.sh [BASE_URL]
```
Run this after every deploy or nginx change to confirm explorer and Snap site are reachable and correct.
---

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#!/usr/bin/env bash
# Apply nginx config for explorer + /snap/ on VMID 5000 from the Proxmox host (or via SSH).
# Runs fix-nginx-serve-custom-frontend.sh inside the VM so /snap and /snap/ return 200.
# Usage: ./apply-nginx-snap-vmid5000.sh
set -euo pipefail
VMID=5000
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
FIX_SCRIPT="$SCRIPT_DIR/fix-nginx-serve-custom-frontend.sh"
PROXMOX_HOST="${PROXMOX_HOST_R630_02:-192.168.11.12}"
if [ ! -f "$FIX_SCRIPT" ]; then
echo "❌ Fix script not found: $FIX_SCRIPT"
exit 1
fi
echo "=========================================="
echo "Apply nginx (explorer + /snap/) on VMID $VMID"
echo "=========================================="
echo ""
if [ -f "/proc/1/cgroup" ] && grep -q "lxc" /proc/1/cgroup 2>/dev/null; then
echo "Running inside VMID $VMID executing fix script directly"
bash "$FIX_SCRIPT"
elif command -v pct &>/dev/null; then
echo "Running from Proxmox host executing fix script inside VM via pct"
pct exec $VMID -- bash -s < "$FIX_SCRIPT"
else
echo "Running from remote pushing script and executing via SSH + pct"
TMP_SCRIPT="/tmp/fix-nginx-snap-$$.sh"
scp -o ConnectTimeout=10 -o StrictHostKeyChecking=no "$FIX_SCRIPT" root@"${PROXMOX_HOST}:$TMP_SCRIPT"
ssh -o ConnectTimeout=10 -o StrictHostKeyChecking=no root@"${PROXMOX_HOST}" "pct exec $VMID -- bash -s < $TMP_SCRIPT; rm -f $TMP_SCRIPT"
fi
echo ""
echo "✅ Nginx config applied. /snap and /snap/ should return 200."
echo "Verify: curl -sS -o /dev/null -w '%{http_code}' https://explorer.d-bis.org/snap/"
echo ""

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@@ -55,12 +55,25 @@ server {
}
# Serve custom frontend for root path (no-cache so fixes show after refresh)
# CSP with unsafe-eval required by ethers.js v5 (NPM proxies to port 80)
location = / {
root /var/www/html;
add_header Cache-Control "no-store, no-cache, must-revalidate";
add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://cdn.jsdelivr.net https://unpkg.com https://cdnjs.cloudflare.com; style-src 'self' 'unsafe-inline' https://cdnjs.cloudflare.com; img-src 'self' data: https:; font-src 'self' https://cdnjs.cloudflare.com; connect-src 'self' https://explorer.d-bis.org wss://explorer.d-bis.org https://rpc-http-pub.d-bis.org wss://rpc-ws-pub.d-bis.org http://192.168.11.221:8545 ws://192.168.11.221:8546;" always;
try_files /index.html =404;
}
location = /favicon.ico {
root /var/www/html;
try_files /favicon.ico =404;
add_header Cache-Control "public, max-age=86400";
}
location = /apple-touch-icon.png {
root /var/www/html;
try_files /apple-touch-icon.png =404;
add_header Cache-Control "public, max-age=86400";
}
# Serve static assets
location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
root /var/www/html;
@@ -105,6 +118,29 @@ server {
try_files /index.html =404;
}
# Chain 138 MetaMask Snap companion site (SPA at /snap/)
# /snap (no trailing slash) -> internal redirect so client gets 200 with content
location = /snap {
rewrite ^ /snap/ last;
}
location /snap/ {
alias /var/www/html/snap/;
try_files $uri $uri/ /snap/index.html;
add_header Cache-Control "no-store, no-cache, must-revalidate";
}
# Icons (exact match to avoid 404s)
location = /favicon.ico {
root /var/www/html;
try_files /favicon.ico =404;
add_header Cache-Control "public, max-age=86400";
}
location = /apple-touch-icon.png {
root /var/www/html;
try_files /apple-touch-icon.png =404;
add_header Cache-Control "public, max-age=86400";
}
# Serve static assets
location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
root /var/www/html;
@@ -146,7 +182,7 @@ server {
proxy_connect_timeout 75s;
}
# All other paths serve custom frontend
# All other paths serve custom frontend (SPA fallback via try_files)
location / {
root /var/www/html;
try_files $uri $uri/ /index.html;
@@ -221,10 +257,10 @@ else
echo " ./scripts/deploy-frontend-to-vmid5000.sh"
fi
# Test HTTP endpoint
# Test HTTP endpoint (non-fatal: do not exit on curl/grep failure)
echo ""
echo "Testing HTTP endpoint:"
HTTP_RESPONSE=$(curl -s http://localhost/ 2>/dev/null | head -5)
HTTP_RESPONSE=$(curl -s --max-time 5 http://localhost/ 2>/dev/null | head -5) || true
if echo "$HTTP_RESPONSE" | grep -q "SolaceScanScout\|<!DOCTYPE html"; then
echo "✅ Custom frontend is accessible via HTTP"
else

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@@ -110,6 +110,52 @@ else
((FAIL++)) || true
fi
# 6) Explorer root returns 200
HTTP_CODE="$(curl -sS -o /dev/null -w "%{http_code}" --connect-timeout 10 "$BASE_URL/" 2>/dev/null || echo 000)"
if [ "$HTTP_CODE" = "200" ]; then
echo "$BASE_URL/ (explorer frontend) returns 200"
((PASS++)) || true
else
echo "$BASE_URL/ returned $HTTP_CODE (expected 200)"
((FAIL++)) || true
fi
# 7) Snap companion site /snap/ returns 200 or 301 (follow redirects for content)
SNAP_OUT="$(curl -sS -L -w '\n%{http_code}' --connect-timeout 10 "$BASE_URL/snap/" 2>/dev/null)" || true
SNAP_BODY="$(echo "$SNAP_OUT" | head -n -1)"
SNAP_CODE="$(echo "$SNAP_OUT" | tail -n 1)"
if [ "$SNAP_CODE" = "200" ] || [ "$SNAP_CODE" = "301" ]; then
echo "$BASE_URL/snap/ (Chain 138 Snap site) returns $SNAP_CODE"
((PASS++)) || true
else
echo "$BASE_URL/snap/ returned $SNAP_CODE (expected 200 or 301)"
((FAIL++)) || true
fi
# 8) /snap/ response contains Snap app content (skip if 301 — redirect may not include body)
if echo "$SNAP_BODY" | head -c 8192 | grep -qE 'Connect|template-snap|Snap|MetaMask'; then
echo "$BASE_URL/snap/ contains Snap app content"
((PASS++)) || true
elif [ "$SNAP_CODE" = "301" ]; then
echo "$BASE_URL/snap/ returned 301 (redirect); content check skipped"
else
echo "$BASE_URL/snap/ response missing expected content (Connect|Snap|MetaMask)"
((FAIL++)) || true
fi
# 9) Nginx has location /snap/ (when we can run inside VM)
if [ -n "$EXEC_PREFIX" ] || [ "$RUN_LOCAL" = true ]; then
if $EXEC_PREFIX bash -c 'grep -q "location /snap/" /etc/nginx/sites-available/blockscout 2>/dev/null'; then
echo "✅ Nginx has location /snap/"
((PASS++)) || true
else
echo "❌ Nginx config has no location /snap/"
((FAIL++)) || true
fi
else
echo "⏭ Skipping nginx /snap/ check (not inside VM and pct not used)"
fi
echo ""
echo "=============================================="
echo "Result: $PASS passed, $FAIL failed"

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scripts/verify-vmid5000-all.sh Executable file
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#!/usr/bin/env bash
# Run all VMID 5000 deployment checks: explorer frontend, Blockscout API, Snap site.
# Usage: ./verify-vmid5000-all.sh [BASE_URL]
# BASE_URL defaults to https://explorer.d-bis.org
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
BASE_URL="${1:-https://explorer.d-bis.org}"
echo "=============================================="
echo "VMID 5000 full verification"
echo "BASE_URL=$BASE_URL"
echo "=============================================="
echo ""
bash "$SCRIPT_DIR/verify-explorer-api-access.sh" "$BASE_URL"