Merge branch 'hj.doc-install' into 'develop'

First attempt at installation documentation

See merge request !24
This commit is contained in:
lambadalambda 2017-09-01 06:42:08 -04:00
commit 678f572144
3 changed files with 137 additions and 5 deletions

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README.md
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# Pleroma
To start your Phoenix server:
## Installation
* Install dependencies with `mix deps.get`
* Create and migrate your database with `mix ecto.create && mix ecto.migrate`
* Start Phoenix endpoint with `mix phx.server`
### Dependencies
Now you can visit [`localhost:4000`](http://localhost:4000) from your browser.
* Postgresql version 9.6 or newer
* Elixir version 1.4 or newer
* NodeJS LTS
* Build-essential tools
#### Installing dependencies on Debian system
PostgreSQL 9.6 should be available on Debian stable (Jessie) from "main" area. Install it using apt: `apt install postgresql-9.6`. Make sure that older versions are not installed since Debian allows multiple versions to coexist but still runs only one version.
You must install elixir 1.4+ from elixir-lang.org, because Debian repos only have 1.3.x version. You will need to add apt repo to sources.list(.d) and import GPG key. Follow instructions here: https://elixir-lang.org/install.html#unix-and-unix-like (See "Ubuntu or Debian 7"). This should be valid until Debian updates elixir in their repositories. Package you want is named `elixir`, so install it using `apt install elixir`
Elixir will also require `make` and probably other related software for building dependencies - in case you don't have them, get them via `apt install build-essential`
NodeJS is available as `nodejs` package on Debian. `apt install nodejs`. Debian stable has 4.8.x version. If that does not work, use nodesource's repo https://github.com/nodesource/distributions#deb - version 5.x confirmed to work.
### Preparation
* You probably want application to run as separte user - so create a new one: `adduser pleroma`, you can login as it via `su pleroma`
* Clone the git repository into new user's dir (clone as the pleroma user to avoid permissions errors)
* Again, as new user, install dependencies with `mix deps.get` if it asks you to install "hex" - agree to that.
### Database setup
* You'll need to allow password-based authorisation for `postgres` superuser
* Changing default password for superuser is probably a good idea:
* Open psql shell as postgres user - while being root run `su postgres -c psql`
* There, enter following:
```sql
ALTER USER postgres with encrypted password '<PASSWORD>';
```
where `<PASSWORD>` is any string, no need to manually encrypt it - postgres will encrypt it automatically for you.
* Replace password in file `config/dev.exs` with password you supplied in previous step (look for line like `password: "postgres"`)
* Edit `/etc/postgresql/9.6/main/pg_hba.conf` (Assuming you have the 9.6 version) and change the line:
```
local all postgres peer
```
to
```
local all postgres md5
```
don't forget to revert it in the later step so you won't have to enter password when accessing psql console.
* Create and update your database with `mix ecto.create && mix ecto.migrate`. If it gives errors, try running again, this is a known issue.
* Undo changes you made in `/etc/postgresql/9.6/main/pg_hba.conf` (replace `md5` with `peer`)
* You most likely don't want having some application accessing database as a superuser, so you should create separate user for Pleroma. Right now it must be done manually (issue #27).
* Open psql shell as postgres user: (as root) `su postgres -c psql`
* Create a new PostgreSQL user:
```sql
\c pleroma_dev
CREATE user pleroma;
ALTER user pleroma with encrypted password '<your password>';
GRANT ALL ON ALL tables IN SCHEMA public TO pleroma;
GRANT ALL ON ALL sequences IN SCHEMA public TO pleroma;
```
* Again, change password in `config/dev.exs`, and change user to `"pleroma"` (line like `username: "postgres"`)
### Some additional configuration
* You will need to let pleroma instance to know what hostname/url it's running on.
In file `config/dev.exs`, add these lines at the end of the file:
```elixir
config :pleroma, Pleroma.Web.Endpoint,
url: [host: "example.tld", scheme: "https", port: 443]
```
replacing `example.tld` with your (sub)domain
* The common and convenient way for adding HTTPS is by using Nginx as a reverse proxy. You can look at example Nginx configuration in `installation/pleroma.nginx`. If you need TLS/SSL certificates for HTTPS, you can look get some for free with letsencrypt: https://letsencrypt.org/
On Debian you can use `certbot` package and command to manage letsencrypt certificates.
* [Not tested with system reboot yet!] You'll also want to set up Pleroma to be run as a systemd service. Example .service file can be found in `installation/pleroma.service` you can put it in `/etc/systemd/system/`.
## Running
By default, it listens on port 4000 (TCP), so you can access it on http://localhost:4000/ (if you are on the same machine). In case of an error it will restart automatically.
### As systemd service (with provided .service file)
Running `service pleroma start`
Logs can be watched by using `journalctl -fu pleroma.service`
### Standalone/run by other means
Run `mix phx.server` in repository's root, it will output log into stdout/stderr
# Phoenix info
Ready to run in production? Please [check our deployment guides](http://www.phoenixframework.org/docs/deployment).

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server {
listen 80;
server_name example.tld;
return 301 https://$server_name$request_uri;
}
server {
listen 443;
ssl on;
ssl_session_timeout 5m;
ssl_certificate /etc/letsencrypt/live/exmaple.tld/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/example.tld/privkey.pem;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers "HIGH:!aNULL:!MD5 or HIGH:!aNULL:!MD5:!3DES";
ssl_prefer_server_ciphers on;
server_name example.tld;
location / {
proxy_pass http://localhost:4000;
}
include snippets/well-known.conf;
}

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[Unit]
Description=Pleroma social network
After=network.target postgresql.service
[Service]
User=pleroma
WorkingDirectory=/home/pleroma/pleroma
Environment="HOME=/home/pleroma"
ExecStart=/usr/local/bin/mix phx.server
ExecReload=/bin/kill $MAINPID
KillMode=process
Restart=on-failure
[Install]
WantedBy=multi-user.target
Alias=pleroma.service