diff options
Diffstat (limited to 'docs/installation/centos7_en.md')
| -rw-r--r-- | docs/installation/centos7_en.md | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/docs/installation/centos7_en.md b/docs/installation/centos7_en.md new file mode 100644 index 000000000..76de21ed8 --- /dev/null +++ b/docs/installation/centos7_en.md @@ -0,0 +1,277 @@ +# Installing on CentOS 7 +## Installation + +This guide is a step-by-step installation guide for CentOS 7. It also assumes that you have administrative rights, either as root or a user with [sudo permissions](https://www.digitalocean.com/community/tutorials/how-to-create-a-sudo-user-on-centos-quickstart). If you want to run this guide with root, ignore the `sudo` at the beginning of the lines, unless it calls a user like `sudo -Hu pleroma`; in this case, use `su <username> -s $SHELL -c 'command'` instead. + +### Required packages + +* `postgresql` (9,6+, CentOS 7 comes with 9.2, we will install version 11 in this guide) +* `elixir` (1.5+) +* `erlang` +* `erlang-parsetools` +* `erlang-xmerl` +* `git` +* Development Tools + +#### Optional packages used in this guide + +* `nginx` (preferred, example configs for other reverse proxies can be found in the repo) +* `certbot` (or any other ACME client for Let’s Encrypt certificates) + +### Prepare the system + +* First update the system, if not already done: + +```shell +sudo yum update +``` + +* Install some of the above mentioned programs: + +```shell +sudo yum install wget git unzip +``` + +* Install development tools: + +```shell +sudo yum group install "Development Tools" +``` + +### Install Elixir and Erlang + +* Add the EPEL repo: + +```shell +sudo yum install epel-release +sudo yum -y update +``` + +* Install Erlang repository: + +```shell +wget -P /tmp/ https://packages.erlang-solutions.com/erlang-solutions-1.0-1.noarch.rpm +sudo rpm -Uvh erlang-solutions-1.0-1.noarch.rpm +``` + +* Install Erlang: + +```shell +sudo yum install erlang erlang-parsetools erlang-xmerl +``` + +* Download [latest Elixir release from Github](https://github.com/elixir-lang/elixir/releases/tag/v1.8.1) (Example for the newest version at the time when this manual was written) + +```shell +wget -P /tmp/ https://github.com/elixir-lang/elixir/releases/download/v1.8.1/Precompiled.zip +``` + +* Create folder where you want to install Elixir, we’ll use: + +```shell +sudo mkdir -p /opt/elixir +``` + +* Unzip downloaded file there: + +```shell +sudo unzip /tmp/Precompiled.zip -d /opt/elixir +``` + +* Create symlinks for the pre-compiled binaries: + +```shell +for e in elixir elixirc iex mix; do sudo ln -s /opt/elixir/bin/${e} /usr/local/bin/${e}; done +``` + +### Install PostgreSQL + +* Add the Postgresql repository: + +```shell +sudo yum install https://download.postgresql.org/pub/repos/yum/11/redhat/rhel-7-x86_64/pgdg-centos11-11-2.noarch.rpm +``` + +* Install the Postgresql server: + +```shell +sudo yum install postgresql11-server postgresql11-contrib +``` + +* Initialize database: + +```shell +sudo /usr/pgsql-11/bin/postgresql-11-setup initdb +``` + +* Open configuration file `/var/lib/pgsql/11/data/pg_hba.conf` and change the following lines from: + +```plain +# IPv4 local connections: +host all all 127.0.0.1/32 ident +# IPv6 local connections: +host all all ::1/128 ident +``` + +to + +```plain +# IPv4 local connections: +host all all 127.0.0.1/32 md5 +# IPv6 local connections: +host all all ::1/128 md5 +``` + +* Enable and start postgresql server: + +```shell +sudo systemctl enable --now postgresql-11.service +``` + +### Install PleromaBE + +* Add a new system user for the Pleroma service: + +```shell +sudo useradd -r -s /bin/false -m -d /var/lib/pleroma -U pleroma +``` + +**Note**: To execute a single command as the Pleroma system user, use `sudo -Hu pleroma command`. You can also switch to a shell by using `sudo -Hu pleroma $SHELL`. If you don’t have and want `sudo` on your system, you can use `su` as root user (UID 0) for a single command by using `su -l pleroma -s $SHELL -c 'command'` and `su -l pleroma -s $SHELL` for starting a shell. + +* Git clone the PleromaBE repository and make the Pleroma user the owner of the directory: + +```shell +sudo mkdir -p /opt/pleroma +sudo chown -R pleroma:pleroma /opt/pleroma +sudo -Hu pleroma git clone https://git.pleroma.social/pleroma/pleroma /opt/pleroma +``` + +* Change to the new directory: + +```shell +cd /opt/pleroma +``` + +* Install the dependencies for Pleroma and answer with `yes` if it asks you to install `Hex`: + +```shell +sudo -Hu pleroma mix deps.get +``` + +* Generate the configuration: `sudo -Hu pleroma mix pleroma.instance gen` + * Answer with `yes` if it asks you to install `rebar3`. + * This may take some time, because parts of pleroma get compiled first. + * After that it will ask you a few questions about your instance and generates a configuration file in `config/generated_config.exs`. + +* Check the configuration and if all looks right, rename it, so Pleroma will load it (`prod.secret.exs` for productive instance, `dev.secret.exs` for development instances): + +```shell +mv config/{generated_config.exs,prod.secret.exs} +``` + +* The previous command creates also the file `config/setup_db.psql`, with which you can create the database: + +```shell +sudo -Hu postgres psql -f config/setup_db.psql +``` + +* Now run the database migration: + +```shell +sudo -Hu pleroma MIX_ENV=prod mix ecto.migrate +``` + +* Now you can start Pleroma already + +```shell +sudo -Hu pleroma MIX_ENV=prod mix phx.server +``` + +### Finalize installation + +If you want to open your newly installed instance to the world, you should run nginx or some other webserver/proxy in front of Pleroma and you should consider to create a systemd service file for Pleroma. + +#### Nginx + +* Install nginx, if not already done: + +```shell +sudo yum install nginx +``` + +* Setup your SSL cert, using your method of choice or certbot. If using certbot, first install it: + +```shell +sudo yum install certbot-nginx +``` + +and then set it up: + +```shell +sudo mkdir -p /var/lib/letsencrypt/ +sudo certbot certonly --email <your@emailaddress> -d <yourdomain> --standalone +``` + +If that doesn’t work, make sure, that nginx is not already running. If it still doesn’t work, try setting up nginx first (change ssl “on” to “off” and try again). + +--- + +* Copy the example nginx configuration to the nginx folder + +```shell +sudo cp /opt/pleroma/installation/pleroma.nginx /etc/nginx/conf.d/pleroma.conf +``` + +* Before starting nginx edit the configuration and change it to your needs (e.g. change servername, change cert paths) +* Enable and start nginx: + +```shell +sudo systemctl enable --now nginx +``` + +If you need to renew the certificate in the future, uncomment the relevant location block in the nginx config and run: + +```shell +sudo certbot certonly --email <your@emailaddress> -d <yourdomain> --webroot -w /var/lib/letsencrypt/ +``` + +#### Other webserver/proxies + +You can find example configurations for them in `/opt/pleroma/installation/`. + +#### Systemd service + +* Copy example service file + +```shell +sudo cp /opt/pleroma/installation/pleroma.service /etc/systemd/system/pleroma.service +``` + +* Edit the service file and make sure that all paths fit your installation +* Enable and start `pleroma.service`: + +```shell +sudo systemctl enable --now pleroma.service +``` + +#### Create your first user + +If your instance is up and running, you can create your first user with administrative rights with the following task: + +```shell +sudo -Hu pleroma MIX_ENV=prod mix pleroma.user new <username> <your@emailaddress> --admin +``` + +#### Further reading + +* [Admin tasks](Admin tasks) +* [Backup your instance](Backup-your-instance) +* [Configuration tips](General tips for customizing pleroma fe) +* [Hardening your instance](Hardening-your-instance) +* [How to activate mediaproxy](How-to-activate-mediaproxy) +* [Small Pleroma-FE customizations](Small customizations) +* [Updating your instance](Updating-your-instance) + +## Questions + +Questions about the installation or didn’t it work as it should be, ask in [#pleroma:matrix.org](https://matrix.heldscal.la/#/room/#freenode_#pleroma:matrix.org) or IRC Channel **#pleroma** on **Freenode**. |