Install HivePaaS

The installer sets up everything on one server: Docker when it is missing, a single-node swarm, and HivePaaS itself. It asks for a few settings as it goes.

Check the requirements first. To install without questions, such as from a script, see Silent install.

Run the installer

On the server:

curl -fsSL https://get.hivepaas.com | sudo bash

Answer its questions

Question	What to give
Admin email	The email of the first user, the admin.
Admin password	10 characters or more, typed twice.
App domain	The dashboard's domain, such as hivepaas.example.com.
Root domain	The domain your apps get subdomains of: the app domain, or a domain it is under. Enter keeps the one suggested, such as example.com.
App data directory	Where HivePaaS keeps its data. Enter keeps /var/lib/hivepaas.
Project data directory	Where your projects' data goes. Enter keeps project_data in the app data directory.
App secret	The key every stored secret is encrypted with. Enter generates one; give your own only to reuse one, with 32 characters or more and no spaces.

When Docker is missing or too old, it asks first whether to install or upgrade it.

Then it shows what it is about to do, and asks:

Install HivePaaS with these settings? [Y/n]

What it does

The installer goes through nine steps:

1. Preflight: checks the server, and installs curl, openssl and jq when missing.
2. Docker: installs or upgrades Docker when needed.
3. Settings: asks its questions, and checks that ports 80 and 443 are free.
4. Host memory:
   • adds a 2 GB swap file when the server has no swap;
   • sets vm.swappiness to 10;
   • installs earlyoom, which stops the largest process, usually an app's, before the server runs out of memory. It leaves HivePaaS's own processes alone.
5. Swarm: makes the server a swarm manager, and creates the hivepaas_net network.
6. Files: creates the data directories, a self-signed certificate, and the files below.
7. Deploy: deploys the hivepaas stack: Traefik, PostgreSQL, Redis, and HivePaaS's app, worker, updater and agent.
8. Waiting for HivePaaS: waits, for up to 5 minutes, for the dashboard to answer.
9. Finish:
   • removes the admin's password from the server;
   • waits a few seconds for the dashboard's certificate from Let's Encrypt.

When it is done

It prints where the dashboard is:

  HivePaaS is running.

  Dashboard   https://hivepaas.example.com
  Sign in     as admin ([email protected]), with the password you chose.

• Sign in as admin, or with your email, and the password you chose.
• Before DNS points at the server, the dashboard answers at the server's IP address too, such as https://203.0.113.10.
• The certificate: HivePaaS asks Let's Encrypt for the dashboard's certificate as soon as the domain points at the server and port 80 is open. Until it arrives, the browser warns about a self-signed certificate. Once it has arrived, quit and reopen the browser: a browser keeps the first certificate it was shown.

After a restart, HivePaaS can take 30 to 60 seconds to answer.

The files it leaves

In the app data directory, /var/lib/hivepaas by default:

File	Holds
hivepaas.toml	The app secret, the only key to your encrypted data.
credentials.txt	The passwords and tokens of HivePaaS's services: its database's, Redis's, its agents' token.
install.log	What each run of the installer did.

Back up hivepaas.toml

Keep a copy of hivepaas.toml somewhere other than the server. Without the app secret in it, the secrets HivePaaS stores cannot be read, even from a backup.

The admin's password is not kept anywhere. The other settings live in the environment of HivePaaS's services: docker service inspect hivepaas_app shows them.

Running it again

Running the installer again is safe:

• After an install that stopped, it picks up where it stopped. Fix what it reported, and run it again.
• On a server where HivePaaS runs, it re-checks the server, and leaves HivePaaS as it is. It reads HivePaaS's settings back from its services, and never resets the swarm, removes a service or a volume, or makes a new secret.
• With --redeploy, it deploys HivePaaS's stack again, from its stack file. Changes HivePaaS made to its own services since - Traefik's settings, the dashboard's routing - go back to the stack file's.

curl -fsSL https://get.hivepaas.com | sudo bash -s -- --redeploy

A database from an earlier install

After docker stack rm hivepaas, the database of the earlier HivePaaS stays on the server. The installer then asks what to do with it:

• keep: use it again. This needs its password, which it reads from credentials.txt, and the earlier hivepaas.toml.
• reset: delete everything in it, and install afresh.