Got a Heroku app and want to make it public with some fancy domain?
I compiled this list to help you publish your next awesome project on Heroku.
I had to do this a few times last month, so this is an extended version of the guide I wrote to myself. 😬
Buy a domain.
Log in to your Heroku console:
$ heroku login heroku: Press any key to open up the browser to login or q to exit: Opening browser to https://cli-auth.heroku.com/auth/browser/f34512meow-d14c-11c0-bafd-f12ff3d2499d Logging in... done Logged in as email@example.com
Assign the custom domain to your Heroku app:
$ heroku domains:add -a my-heroku-app my-heroku-app.akoskm.com Adding my-heroku-app.akoskm.com to ⬢ my-heroku-app... done ▸ Configure your app's DNS provider to point to the DNS Target cute-cats-puivs2izaopsep1mcu2ae3m8li.herokudns.com. ▸ For help, see https://devcenter.heroku.com/articles/custom-domains The domain my-heroku-app.akoskm.com has been enqueued for addition ▸ Run heroku domains:wait 'my-heroku-app.akoskm.com' to wait for completion
Wherever you bought your domain, it should have a DNS editor where you can add a CNAME entry. The naming in your DNS editor might be different but here are the things you have to fill:
Zone name: my-heroku-app.akoskm.com Fully qualified domain name: cute-cats-puivs2izaopsep1mcu2ae3m8li.herokudns.com. <- should be the DNS Target heroku domains:add gave you Type: CNAME (this is usually prefilled if your DNS editor is smart enough) TTL: 14400 (mine says 14400, that's the default)
If you’re using CPanel as your DNS editor you’ll see something like this:
At this point, you should be able to navigate to http://my-heroku-app.akoskm.com and see your Heroku app. HTTPS access shouldn’t work at this point.
Now it’s time to add SSL. Check if the automated certificate management is enabled for your app:
$ heroku certs:auto -a my-heroku-app === Automatic Certificate Management is disabled on my-heroku-app
If it’s not already enabled, you have to enable it:
$ heroku certs:auto:enable -a my-heroku-app Enabling Automatic Certificate Management... starting. See status with heroku certs:auto or wait until active with heroku certs:auto:wait === Your certificate will now be managed by Heroku. Check the status by running heroku certs:auto.
When you check the status, it should display something like this:
$ heroku certs:auto -a my-heroku-app === Automatic Certificate Management is enabled on my-heroku-app Certificate details: Common Name(s): my-heroku-app.akoskm.com Expires At: 2019-12-09 07:19 UTC Issuer: /C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 Starts At: 2019-09-10 07:19 UTC Subject: /CN=my-heroku-app.akoskm.com SSL certificate is verified by a root authority. Domain Status Last Updated ────────────────── ─────────── ────────────────── my-heroku-app.akoskm.com Cert issued less than a minute
https://my-heroku-app.akoskm.com should be accessible at this point.
Hope this little guide saved you some time! If you found it useful, please share it with others. Thank you!
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