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Deploy take 1
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Jordan Eldredge
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290
packages/skin-database/scripts/deploy.ts
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290
packages/skin-database/scripts/deploy.ts
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/**
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* Simple Blue/Green Deployment Script
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* This script handles deploying to the inactive instance and switching traffic
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*
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* Usage: npx tsx scripts/deploy.ts
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*/
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import { execSync } from "child_process";
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import { readFileSync, copyFileSync } from "fs";
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import * as readline from "readline";
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// ANSI color codes
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const colors = {
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red: "\x1b[0;31m",
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green: "\x1b[0;32m",
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blue: "\x1b[0;34m",
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cyan: "\x1b[0;36m",
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yellow: "\x1b[1;33m",
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bold: "\x1b[1m",
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reset: "\x1b[0m",
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} as const;
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// Configuration
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const APACHE_CONFIG = "/etc/apache2/sites-enabled/api.webamp.org-le-ssl.conf";
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const BLUE_PORT = 3001;
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const GREEN_PORT = 3002;
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type Color = "blue" | "green";
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interface DeploymentState {
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currentColor: Color;
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currentPort: number;
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newColor: Color;
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newPort: number;
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}
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function log(message: string, color?: keyof typeof colors): void {
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if (color) {
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console.log(`${colors[color]}${message}${colors.reset}`);
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} else {
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console.log(message);
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}
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}
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function logBlank(): void {
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console.log();
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}
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function exec(command: string, description: string): void {
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try {
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execSync(command, { stdio: "inherit" });
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} catch (error) {
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log(`✗ Failed to ${description}`, "red");
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throw error;
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}
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}
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function execSilent(command: string): string {
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return execSync(command, { encoding: "utf8" });
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}
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function detectCurrentDeployment(): DeploymentState {
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log("→ Detecting current active deployment...", "cyan");
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const apacheConfig = readFileSync(APACHE_CONFIG, "utf8");
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const isBlueActive = apacheConfig.includes(`localhost:${BLUE_PORT}`);
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if (isBlueActive) {
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log(
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` Current active: ${colors.blue}blue${colors.reset} (port ${BLUE_PORT})`
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);
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log(
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` Deploying to: ${colors.green}green${colors.reset} (port ${GREEN_PORT})`
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);
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logBlank();
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return {
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currentColor: "blue",
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currentPort: BLUE_PORT,
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newColor: "green",
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newPort: GREEN_PORT,
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};
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} else {
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log(
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` Current active: ${colors.green}green${colors.reset} (port ${GREEN_PORT})`
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);
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log(
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` Deploying to: ${colors.blue}blue${colors.reset} (port ${BLUE_PORT})`
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);
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logBlank();
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return {
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currentColor: "green",
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currentPort: GREEN_PORT,
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newColor: "blue",
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newPort: BLUE_PORT,
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};
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}
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}
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async function promptForConfirmation(
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newPort: number,
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newColor: Color
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): Promise<boolean> {
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const colorCode = newColor === "blue" ? colors.blue : colors.green;
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log("========================================", "cyan");
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log(" MANUAL VALIDATION REQUIRED", "yellow");
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log("========================================", "cyan");
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logBlank();
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log(` Test the new ${colorCode}${newColor}${colors.reset} deployment at:`);
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log(` ${colors.bold}https://${newColor}.api.webamp.org${colors.reset}`);
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logBlank();
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log(` You can test it with:`);
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log(
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` ${colors.cyan}curl -I https://${newColor}.api.webamp.org${colors.reset}`
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);
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logBlank();
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const rl = readline.createInterface({
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input: process.stdin,
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output: process.stdout,
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});
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return new Promise((resolve) => {
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rl.question(" Does everything look good? (yes/no): ", (answer) => {
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rl.close();
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logBlank();
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resolve(answer.toLowerCase() === "yes");
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});
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});
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}
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function switchApacheConfig(state: DeploymentState): void {
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const colorCode = state.newColor === "blue" ? colors.blue : colors.green;
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log(
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`→ Switching production to ${colorCode}${state.newColor}${colors.reset}...`,
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"cyan"
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);
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log(" Updating Apache configuration...", "cyan");
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// Backup current config
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const backupPath = `${APACHE_CONFIG}.backup`;
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copyFileSync(APACHE_CONFIG, backupPath);
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// Update the port in Apache config
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exec(
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`sudo sed -i 's/localhost:${state.currentPort}/localhost:${state.newPort}/g' "${APACHE_CONFIG}"`,
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"update Apache configuration"
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);
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// Reload Apache
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exec("sudo systemctl reload apache2", "reload Apache");
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log("✓ Apache configuration updated and reloaded", "cyan");
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logBlank();
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// Verify the change
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const updatedConfig = readFileSync(APACHE_CONFIG, "utf8");
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if (!updatedConfig.includes(`localhost:${state.newPort}`)) {
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throw new Error("Configuration update verification failed");
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}
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}
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function restoreBackup(): void {
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log(" Restoring backup...", "yellow");
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const backupPath = `${APACHE_CONFIG}.backup`;
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exec(`sudo cp "${backupPath}" "${APACHE_CONFIG}"`, "restore backup");
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exec("sudo systemctl reload apache2", "reload Apache");
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log("✓ Backup restored", "yellow");
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}
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async function main(): Promise<void> {
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try {
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log("========================================", "cyan");
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log(" Blue/Green Deployment Script", "cyan");
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log("========================================", "cyan");
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logBlank();
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// Step 1: Detect current deployment
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const state = detectCurrentDeployment();
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// Step 2: Pull from GitHub
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log("→ Pulling latest code from GitHub...", "cyan");
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exec("git pull --rebase origin master", "pull from GitHub");
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log("✓ Code updated", "cyan");
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logBlank();
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// Step 3: Install dependencies
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log("→ Installing dependencies...", "cyan");
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exec("yarn install --frozen-lockfile", "install dependencies");
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log("✓ Dependencies installed", "cyan");
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logBlank();
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// Step 4: Build the site
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log("→ Building the site...", "cyan");
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exec("yarn build", "build the site");
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log("✓ Build complete", "cyan");
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logBlank();
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// Step 5: Deploy to inactive instance
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const newColorCode = state.newColor === "blue" ? colors.blue : colors.green;
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log(
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`→ Restarting ${newColorCode}${state.newColor}${colors.reset} instance...`,
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"cyan"
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);
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exec(
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`pm2 restart skin-database-${state.newColor}`,
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`restart ${state.newColor} instance`
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);
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log(
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`✓ ${newColorCode}${state.newColor}${colors.reset} instance restarted`,
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"cyan"
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);
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logBlank();
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// Wait for the service to start
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log("→ Waiting for service to be ready...", "cyan");
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await new Promise((resolve) => setTimeout(resolve, 5000));
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// Check if the service is running
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const pm2List = execSilent("pm2 list");
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const isRunning =
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pm2List.includes(`skin-database-${state.newColor}`) &&
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pm2List.includes("online");
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if (isRunning) {
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log(
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`✓ ${newColorCode}${state.newColor}${colors.reset} instance is running`,
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"cyan"
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);
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} else {
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log(
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`✗ ${newColorCode}${state.newColor}${colors.reset} instance failed to start!`,
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"red"
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);
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log(` Check PM2 logs: pm2 logs skin-database-${state.newColor}`, "red");
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process.exit(1);
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}
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logBlank();
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// Step 6: Manual validation prompt
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const confirmed = await promptForConfirmation(
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state.newPort,
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state.newColor
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);
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if (!confirmed) {
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log("✗ Deployment cancelled!", "red");
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log(
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` The ${newColorCode}${state.newColor}${colors.reset} instance is running but not active in production.`
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);
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log(
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` You can rollback by restarting: pm2 restart skin-database-${state.newColor}`
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);
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process.exit(1);
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}
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// Step 7: Switch Apache configuration
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switchApacheConfig(state);
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// Success message
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const currentColorCode =
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state.currentColor === "blue" ? colors.blue : colors.green;
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log("========================================", "cyan");
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log(" DEPLOYMENT SUCCESSFUL!", "cyan");
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log("========================================", "cyan");
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logBlank();
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log(
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` Active deployment: ${newColorCode}${state.newColor}${colors.reset} (port ${state.newPort})`
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);
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log(
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` Previous deployment: ${currentColorCode}${state.currentColor}${colors.reset} (port ${state.currentPort}) - still running as backup`
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);
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logBlank();
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log("Note: If you need to rollback:", "yellow");
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log(` 1. Edit: ${APACHE_CONFIG}`);
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log(` 2. Change port back to ${state.currentPort}`);
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log(` 3. Run: sudo systemctl reload apache2`);
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} catch (error) {
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if (
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error instanceof Error &&
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error.message === "Configuration update verification failed"
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) {
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log("✗ Configuration update failed!", "red");
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restoreBackup();
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}
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process.exit(1);
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}
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}
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// Run the deployment
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main();
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