Update mermaids.sh
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mermaids.sh
270
mermaids.sh
@ -1,4 +1,6 @@
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#!/bin/bash
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# ct/mermaidjs.sh - Create and configure a self-hosted Mermaid.js editor LXC
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set -euo pipefail
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RED='\033[0;31m'
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@ -11,171 +13,255 @@ log() { echo -e "${GREEN}[$(date +%H:%M:%S)]${NC} $1"; }
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warn() { echo -e "${YELLOW}[$(date +%H:%M:%S)]${NC} $1"; }
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die() { echo -e "${RED}[$(date +%H:%M:%S)]${NC} $1"; exit 1; }
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if [[ $EUID -ne 0 ]] || [[ ! -f /etc/pve/nodes ]]; then
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# Ensure root on Proxmox VE
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if [[ $EUID -ne 0 ]] || ! command -v pct &>/dev/null; then
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die "This script must be run as root on a Proxmox VE host"
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fi
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LXC_HOSTNAME="mermaid"
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# === Configuration Defaults ===
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LXC_ID=""
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LXC_MEMORY=256
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LXC_HOSTNAME="mermaid"
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LXC_MEMORY=512
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LXC_CORES=1
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LXC_DISK="local-lvm"
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LXC_TEMPLATE="local:vztmpl/debian-12-standard_12.12-1_amd64.tar.zst"
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LXC_TEMPLATE="local:vztmpl/debian-12-standard_12.0-1_amd64.tar.zst"
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LXC_ROOT_PASSWORD="mermaid"
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LXC_IP=""
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LXC_NETMASK="24"
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LXC_GATEWAY=""
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LXC_BRIDGE="vmbr0"
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LXC_PORT="80" # HTTP port — change if needed (e.g., 8080)
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# Auto-increment VMID
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get_next_id() {
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local max=0
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for id in $(pct list | awk 'NR>1 {print $1}'); do ((id > max)) && max=$id; done
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for id in $(pct list | awk 'NR>1 {print $1}'); do
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((id > max)) && max=$id
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done
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echo $((max + 1))
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}
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log "=== Mermaid Editor LXC Setup (Alpine + Caddy) ==="
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log "=== Mermaid.js Interactive Editor LXC Setup (Debian 12) ==="
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log "This creates a container with a live-editable Mermaid editor (offline-capable)."
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# === Interactive Prompts ===
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read -rp "Hostname (default: mermaid): " HOSTNAME_INPUT
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[[ -n "$HOSTNAME_INPUT" ]] && LXC_HOSTNAME="$HOSTNAME_INPUT"
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read -rp "Container ID (default: $(get_next_id)): " ID_INPUT
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LXC_ID=${ID_INPUT:-$(get_next_id)}
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read -rp "Memory (MB, default: 256): " MEM_INPUT
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LXC_MEMORY=${MEM_INPUT:-256}
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read -rp "Memory (MB, default: 512): " MEM_INPUT
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LXC_MEMORY=${MEM_INPUT:-512}
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read -rp "CPU Cores (default: 1): " CORES_INPUT
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LXC_CORES=${CORES_INPUT:-1}
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read -rp "Root Password (default: mermaid): " PASS_INPUT
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LXC_ROOT_PASSWORD=${PASS_INPUT:-mermaid}
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read -rp "Disk Pool (default: local-lvm): " DISK_INPUT
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read -rp "Disk Storage Pool (default: local-lvm): " DISK_INPUT
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LXC_DISK=${DISK_INPUT:-local-lvm}
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read -rp "Bridge (default: vmbr0): " BRIDGE_INPUT
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read -rp "Network Bridge (default: vmbr0): " BRIDGE_INPUT
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LXC_BRIDGE=${BRIDGE_INPUT:-vmbr0}
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read -rp "IP (blank for DHCP): " IP_INPUT
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read -rp "HTTP Port (default: 80): " PORT_INPUT
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LXC_PORT=${PORT_INPUT:-80}
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read -rp "IP Address (e.g., 192.168.1.60; leave blank for DHCP): " IP_INPUT
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LXC_IP="$IP_INPUT"
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[[ -n "$LXC_IP" ]] && {
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if [[ -n "$LXC_IP" ]]; then
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read -rp "Netmask (default: 24): " NETMASK_INPUT
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LXC_NETMASK=${NETMASK_INPUT:-24}
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read -rp "Gateway (blank): " GW_INPUT
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read -rp "Gateway (blank for none): " GW_INPUT
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LXC_GATEWAY="$GW_INPUT"
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}
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NET0_ARGS="name=eth0,bridge=$LXC_BRIDGE"
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if [[ -n "$LXC_IP" ]]; then
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NET0_ARGS="$NET0_ARGS,ip=$LXC_IP/$LXC_NETMASK"
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[[ -n "$LXC_GATEWAY" ]] && NET0_ARGS="$NET0_ARGS,gw=$LXC_GATEWAY"
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fi
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# Fail fast if bridge or disk don't exist
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pvesm status | grep -q "$LXC_DISK" || die "Storage pool '$LXC_BRIDGE' not found"
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ip link show "$LXC_BRIDGE" >/dev/null 2>&1 || die "Bridge '$LXC_BRIDGE' not found"
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# === 1. Create LXC Container ===
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log "Creating Debian 12 LXC container $LXC_ID ($LXC_HOSTNAME)..."
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log "Creating LXC container $LXC_ID ($LXC_HOSTNAME)..."
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pct create "$LXC_ID" "$LXC_TEMPLATE" \
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-hostname "$LXC_HOSTNAME" \
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-memory "$LXC_MEMORY" \
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-cores "$LXC_CORES" \
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-net0 "$NET0_ARGS" \
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-rootfs "$LXC_DISK:1" \
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# Build network config safely
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if [[ -n "$LXC_IP" ]]; then
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if [[ -z "$LXC_GATEWAY" ]]; then
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warn "IP provided without gateway — using DHCP for gateway"
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NET_CONFIG="dhcp=1"
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else
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NET_CONFIG="ip=$LXC_IP/$LXC_NETMASK,gw=$LXC_GATEWAY"
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fi
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else
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NET_CONFIG="dhcp=1"
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fi
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pct create $LXC_ID $LXC_TEMPLATE \
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-hostname $LXC_HOSTNAME \
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-memory $LXC_MEMORY \
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-cores $LXC_CORES \
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-net0 name=eth0,bridge=$LXC_BRIDGE,$NET_CONFIG \
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-rootfs $LXC_DISK:2 \
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-ostype debian \
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-password "$LXC_ROOT_PASSWORD" \
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-onboot 1
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-password $LXC_ROOT_PASSWORD \
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-onboot 1 \
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-features nesting=1 \
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-unprivileged 0
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log "Starting container..."
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pct start "$LXC_ID"
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log "Waiting for container to be reachable..."
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for i in {1..40}; do
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pct exec "$LXC_ID" -- sh -c "ping -c1 127.0.0.1 >/dev/null 2>&1" && break
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pct start $LXC_ID
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log "Waiting for container to be reachable (max 60s)..."
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for i in {1..60}; do
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if pct exec $LXC_ID -- sh -c "ping -c1 127.0.0.1 >/dev/null 2>&1"; then
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break
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fi
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sleep 1
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done
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log "Deploying Mermaid editor (offline + interactive UI)..."
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pct exec "$LXC_ID" -- sh -c "
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set -euo pipefail
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GREEN='\033[0;32m'; NC='\033[0m'
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log() { echo -e \"\${GREEN}[\$(date +%H:%M:%S)]\${NC} \$1\"; }
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# === 2. Prepare and Deploy Install Script ===
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log "Deploying Mermaid editor + Caddy..."
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# 1. Update + install deps
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log 'Updating system...'
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apk update >/dev/null 2>&1
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apk add caddy curl >/dev/null 2>&1
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cat > /tmp/mermaid-install.sh <<'EOF'
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#!/bin/bash
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set -euo pipefail
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# 2. Download Mermaid (offline)
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log 'Downloading Mermaid v10.6.1...'
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mkdir -p /var/www/mermaid
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wget -q -O /var/www/mermaid/mermaid.min.js \
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https://cdn.jsdelivr.net/npm/mermaid@10.6.1/dist/mermaid.min.js
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m'
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# 3. Create editor HTML (split editor + preview)
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log 'Creating interactive editor interface...'
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cat > /var/www/mermaid/index.html <<'HTMLEOF'
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log() { echo -e "${GREEN}[$(date +%H:%M:%S)]${NC} $1"; }
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PORT="${1:-80}"
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# 1. Update & install Caddy + deps
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log "Updating system..."
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apt-get update -qq
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apt-get install -y -qq wget ufw
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# 2. Download Mermaid (offline bundled)
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log "Downloading Mermaid v10.6.1 (offline)..."
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mkdir -p /var/www/mermaid
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wget -q https://cdn.jsdelivr.net/npm/mermaid@10.6.1/dist/mermaid.min.js -O /var/www/mermaid/mermaid.min.js
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# 3. Create the editor HTML (dark theme, live preview)
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log "Creating Mermaid editor interface..."
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cat > /var/www/mermaid/index.html <<'HTML'
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset='utf-8'>
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<meta charset="utf-8">
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<title>Self-hosted Mermaid Editor</title>
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<script src='/mermaid.min.js'></script>
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<script src="/mermaid.min.js"></script>
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<style>
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body { margin:0; display:grid; grid-template-columns:1fr 1fr; height:100vh; }
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textarea {
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width:100%; height:100%; padding:1rem; font-family:monospace;
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font-size:14px; border:none; resize:none;
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background:#2d2d2d; color:#f8f8f2;
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body {
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margin: 0;
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
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display: grid;
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grid-template-columns: 1fr 1fr;
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height: 100vh;
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background: #f0f0f0;
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}
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#preview { padding:1rem; overflow:auto; border-left:1px solid #ddd; background:#fff; }
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.mermaid { max-width:90%; margin:0 auto; }
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textarea {
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width: 100%;
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height: 100%;
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padding: 1rem;
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font-family: 'JetBrains Mono', Consolas, monospace;
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font-size: 14px;
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border: none;
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resize: none;
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background: #2d2d2d;
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color: #f8f8f2;
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}
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#preview {
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padding: 1rem;
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overflow: auto;
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border-left: 1px solid #ccc;
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background: #fff;
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}
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.mermaid { max-width: 90%; margin: 0 auto; }
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</style>
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<script>
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mermaid.initialize({startOnLoad:false,securityLevel:'loose'});
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mermaid.initialize({startOnLoad: false, securityLevel: 'loose'});
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const editor = document.querySelector('textarea');
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const preview = document.getElementById('preview');
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editor.addEventListener('input', () => {
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const code = editor.value.trim();
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if (code) {
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mermaid.render('diagram', code, svg => preview.innerHTML = svg);
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} else {
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preview.innerHTML = '<p style=\"color:#999;\">Type Mermaid code here...</p>';
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preview.innerHTML = '<p style="color:#999;">Type Mermaid code here...</p>';
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}
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});
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editor.value = 'graph TD\n A[Start] --> B{Decision?}\n B -->|Yes| C[Do A]\n B -->|No| D[Do B]\n C --> E\n D --> E';
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editor.dispatchEvent(new Event('input'));
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// Initial render
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editor.value = `graph TD
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A[Start] --> B{Decision?}
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B -->|Yes| C[Do A]
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B -->|No| D[Do B]
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C --> E[End]
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D --> E`;
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input();
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</script>
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</head>
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<body>
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<textarea spellcheck='false'></textarea>
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<div id='preview'></div>
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<textarea spellcheck="false"></textarea>
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<div id="preview"></div>
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</body>
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</html>
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HTMLEOF
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HTML
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# 4. Caddy config (HTTP)
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log 'Configuring Caddy...'
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cat > /etc/caddy/Caddyfile <<'CADDYEOF'
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:80 {
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# 4. Caddy config (HTTP on $PORT)
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log "Configuring Caddy..."
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cat > /etc/caddy/Caddyfile <<CADDY
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:$PORT {
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root * /var/www/mermaid
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file_server
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log { output file /var/log/caddy/access.log }
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log {
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output file /var/log/caddy/access.log
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}
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}
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CADDYEOF
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CADDY
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# 5. Start Caddy
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rc-service caddy start >/dev/null 2>&1
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rc-update add caddy >/dev/null 2>&1
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sleep 3
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# 5. Start & enable Caddy
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rc-service caddy start
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rc-update add caddy
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if curl -sf http://localhost >/dev/null; then
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log 'Mermaid Editor is live!'
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else
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log 'Caddy may still be starting — check rc-service caddy status'
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fi
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# 6. Firewall
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ufw --force enable 2>/dev/null || true
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ufw allow $PORT/tcp 2>/dev/null || true
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# 6. Summary
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IP=$(hostname -I 2>/dev/null | cut -d' ' -f1)
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[[ -z \"$IP\" ]] && IP=$(ip -4 addr show eth0 | grep -oP '(?<=inet\s)\d+(\.\d+){3}')
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log \"URL: ${BLUE}http://${IP}${NC}\"
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log \"Root password: ${YELLOW}$LXC_ROOT_PASSWORD${NC}\"
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"
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# 7. Wait + check
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log "Waiting for Caddy to start..."
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sleep 5
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if curl -sf "http://localhost:$PORT" >/dev/null; then
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log "Mermaid Editor is live!"
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else
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warn "Caddy failed — check 'rc-service caddy status' and 'journalctl -u caddy'"
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exit 1
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fi
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IP=$(pct exec "$LXC_ID" -- sh -c 'hostname -I 2>/dev/null | cut -d" " -f1')
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[[ -z "$IP" ]] && IP=$(pct exec "$LXC_ID" -- sh -c "ip -4 addr show eth0 | grep -oP '(?<=inet\s)\d+(\.\d+){3}'")
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# 8. Output summary
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IP=$(hostname -I 2>/dev/null | cut -d' ' -f1)
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if [[ -z "$IP" ]]; then
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IP=$(ip -4 addr show eth0 | grep -oP '(?<=inet\s)\d+(\.\d+){3}')
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fi
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log "URL: ${BLUE}http://${IP}:${PORT}${NC}"
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log "Root password: ${YELLOW}$LXC_ROOT_PASSWORD${NC}"
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log "SSH: ssh root@${IP}"
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EOF
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# Push & run install script
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pct push $LXC_ID /tmp/mermaid-install.sh /root/mermaid-install.sh || die "Failed to push script"
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pct exec $LXC_ID -- bash /root/mermaid-install.sh "$LXC_PORT" || die "Install failed"
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# Cleanup
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rm -f /tmp/mermaid-install.sh
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# === 3. Final Summary ===
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IP_ADDR=$(pct exec $LXC_ID -- hostname -I 2>/dev/null | cut -d' ' -f1)
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[[ -z "$IP_ADDR" ]] && IP_ADDR=$(pct exec $LXC_ID -- ip -4 addr show eth0 | grep -oP '(?<=inet\s)\d+(\.\d+){3}')
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log "Mermaid Editor LXC ($LXC_ID) ready!"
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log "URL: ${BLUE}http://${IP}${NC}"
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log "URL: ${BLUE}http://${IP_ADDR}:${LXC_PORT}${NC}"
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log "Root password: ${YELLOW}$LXC_ROOT_PASSWORD${NC}"
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