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Our public GitLab instance is https://git.fosscommunity.in

==Hosting==

Sponsored by [https://www.infomaniak.com/en/about Infomaniak]. Hosted in Switzerland with infomaniak.com.

Previously sponsored by [http://about.gitlab.com GitLab Inc] (2016-2022)

==Setup==

Running on debian gnu/linux 10 buster with postgresql 11. Using gitlab package from http://fasttrack.debian.net

Check https://wiki.debian.org/gitlab for installation/update instructions.

Debian package specific documentation -> https://salsa.debian.org/ruby-team/gitlab/raw/buster-fasttrack/debian/README.Debian

Letsencrypt domains:

  letsencrypt --expand --webroot --webroot-path /usr/share/gitlab/public -d git.fosscommunity.in -d gitlab.debian.net -d wiki.fsci.org.in -d git.fsci.org.in  certonly

== Mail Server Setup ==

* postfix is used
* SPF record is added (only a and aaaa allowed to send mails)
* Reverse DNS is updated in gandi.net server ip section
* Using letsencrypt certificates for tls in main.cf
* Using 'inet_interfaces = 127.0.0.1' in main.cf
* Configured DKIM following https://www.linode.com/docs/email/postfix/configure-spf-and-dkim-in-postfix-on-debian-8/
* DMARC is set to reject

==Maintenance==

Maintenance discussion at [https://www.loomio.org/g/Qu3O8mSf/fosscommunity-in-git-fosscommunity-in-maintainers this loomio subgroup] and [https://matrix.to/#/#git.fosscommunity.in:matrix.org this matrix chat room]. Can also use the [https://git.fosscommunity.in/community/management/-/issues git tracker] for development issues.

* [https://git.fosscommunity.in/community/gitlab/ team repo with access details] (private)

If expecting service disruptions, downtime, or user-facing errors, consider adding an update to [[Status]]

==Gitlab QA - running tests==

<Create a user account for QA>

<code>
$ sudo gem install gitlab-qa

$ GITLAB_USERNAME=<username> GITLAB_PASSWORD=<password> gitlab-qa Test::Instance::Any gitlab/gitlab-ce-qa:<gitlab version> https://git.hacksk.xyz
</code>

==Backup==

Backup server is provided by Manu (KVM virtual machine with 100 GB storage and 1 GB ram). Running on debian gnu/linux 10 buster. 

Documentation: https://linuxhint.com/setup_postgresql_replication/ and https://www.percona.com/blog/2018/09/07/setting-up-streaming-replication-postgresql/

===Slave configuration: Step 1===
Install postgresql and rsync

 # apt-get install postgresql-contrib-11 rsync

Check postgresql server is running

 # su postgres -c psql

Make sure en_US.UTF-8 locale is available

 # dpkg-reconfigure locales

Create ssh key for postgres user

 # su - postgres
 $ ssh-keygen -t ed25519

Now copy /var/lib/postgresql/.ssh/id_ed25519.pub to master postgres users' /var/lib/postgresql/.ssh/authorized_keys

Stop postgresql before changing any configuration
 # systemctl stop postgresql@11-main

as postgres user
 $ su - postgres
 $ cd /etc/postgresql/11/main

Open the postgres configuration file

 $ nano postgresql.conf

Set the following configuration options in the postgresql.conf file

 listen_addresses = 'localhost,192.168.0.115'
 port=5432
 wal_level = replica
 max_wal_senders = 1
 archive_mode = on
 archive_command = 'cd .'
 hot_standby = on

===Master configuration===

Create and copy ssh public key to slave like above.

 # su - postgres
 $ ssh-keygen

Now copy /var/lib/postgresql/.ssh/id_rsa.pub to slave postgres users' /var/lib/postgresql/.ssh/authorized_keys

Create postgresql user for replication.

 $ psql -c "CREATE USER rep REPLICATION LOGIN CONNECTION LIMIT 1 ENCRYPTED PASSWORD 'yourpassword';"

Allow slave to connect to master using the user just created.

 $ cd /etc/postgresql/11/main

 $ nano pg_hba.conf

Add below line to allow rep user to get access to the server

 host    replication     rep     62.210.83.200/32   md5

Next , open the postgres configuration file

 nano postgresql.conf

Set the following configuration options in the postgresql.conf file

 listen_addresses = 'localhost,213.167.243.152'
 port=5432
 wal_level = replica
 max_wal_senders = 1
 archive_mode = on
 archive_command = 'cd .'
 hot_standby = on

Now, to activate your changes, reload the postgresql server

 # systemctl reload postgresql@11-main

You may need to restart it via systemd,

 # systemctl restart postgresql

Open 5432 port in the firewall

 # ufw allow from 62.210.83.200 to any port 5432 proto tcp

===Slave Configuration: Step 2===

Copy data from master and create recovery.conf
 $ pg_basebackup -h git.fosscommunity.in -D /var/lib/postgresql/11/main/ -P -U rep --wal-method=fetch  -R

Start the slave server

 # systemctl start postgresql@11-main

===Replication Status===

On master server ,

 $ ps -ef | grep sender
 $ psql -c "select * from pg_stat_activity where usename='rep';"

On slave server,

 $ ps -ef | grep receiver

[[Category:Services]]

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