{"id":493,"date":"2017-01-25T13:47:28","date_gmt":"2017-01-25T13:47:28","guid":{"rendered":"https:\/\/www.linuxcloudvps.com\/blog\/?p=493"},"modified":"2018-01-31T08:56:23","modified_gmt":"2018-01-31T14:56:23","slug":"how-to-install-discourse-on-a-centos-7-cloud-vps","status":"publish","type":"post","link":"https:\/\/www.linuxcloudvps.com\/blog\/how-to-install-discourse-on-a-centos-7-cloud-vps\/","title":{"rendered":"How to Install Discourse on a CentOS 7 Cloud VPS"},"content":{"rendered":"<p>Discourse is a simple and clean, open-source forum platform built with Ruby on Rails. This tutorial describes how to install Discourse on a <a href=\"https:\/\/www.linuxcloudvps.com\/centos-cloud-vps.html\" target=\"_blank\">CentOS 7 Cloud VPS<\/a>.<!--more--><\/p>\n<p>Before we start installing Discourse, ensure that you have the following minimum versions installed on your VPS:<\/p>\n<ul>\n<li>Ruby version 2.3+<\/li>\n<li>PostgreSQL version 9.3+<\/li>\n<li>Redis 2.6+<\/li>\n<\/ul>\n<p>In this tutorial, we will cover the installation of all these requirements.<\/p>\n<p>Login to your CentOS 7 VPS via SSH as user root<\/p>\n<pre>ssh root@IP_Address<\/pre>\n<p>and update all services installed on your VPS<\/p>\n<pre>yum -y update<\/pre>\n<p>Install the following dependencies<\/p>\n<pre>yum install -y patch libyaml-devel patch readline-devel libffi-devel openssl-devel bzip2 libtool bison sqlite-devel sudo<\/pre>\n<p>Create a new system user for Discourse<\/p>\n<pre>adduser --shell \/bin\/bash discourse\r\nmkdir \/var\/www\/discourse\r\ninstall -d -m 755 -o discourse -g discourse \/var\/www\/discourse<\/pre>\n<p>Install Nginx web server, start it and enable it to automatically start on boot<\/p>\n<pre>yum install nginx\r\nsystemctl start nginx\r\nsystemctl enable nginx<\/pre>\n<p>Discourse uses Redis as key-value data store cache. Run the following command to install Redis on your VPS<\/p>\n<pre>yum install redis<\/pre>\n<p>Once it is installed, start Redis and enable it to start at system boot<\/p>\n<pre>systemctl start redis\r\nsystemctl enable redis<\/pre>\n<p>Install a mail server on your VPS<\/p>\n<pre>yum install -y postfix<\/pre>\n<p>Configure postfix based on your requirements and setup.<\/p>\n<p>Discourse stores its data in a PostgreSQL database, so now, we will install PostgreSQL server<\/p>\n<pre>yum install postgresql-server postgresql-devel\u00a0 postgresql-contrib<\/pre>\n<p>Create a new PostgreSQL database cluster:<\/p>\n<pre>postgresql-setup initdb<\/pre>\n<p>And run the following commands to start the SQL server and enable it to start on boot<\/p>\n<pre>systemctl start postgresql\r\nsystemctl enable postgresql<\/pre>\n<p>Create a Discourse database user<\/p>\n<pre>su postgres\r\ncreateuser -s discourse\r\npsql -c &quot;alter user discourse password &#039;PASSWORD&#039;;&quot;\r\nexit<\/pre>\n<p>Install RVM<\/p>\n<pre>su discourse\r\ncurl -s -S -L https:\/\/get.rvm.io | bash -s stable\r\nrvm install ruby<\/pre>\n<p>And now install Ruby using RVM<\/p>\n<pre>rvm install ruby\r\nbash --login\r\nrvm use ruby<\/pre>\n<p>You can check if Ruby is properly installed using the following command<\/p>\n<pre>ruby -v\r\nruby 2.3.3p222 (2016-11-21 revision 56859) [x86_64-linux]<\/pre>\n<p>Install Bundler<\/p>\n<pre>gem install bundler\r\n\r\nFetching: bundler-1.13.7.gem (100%)\r\nSuccessfully installed bundler-1.13.7\r\nParsing documentation for bundler-1.13.7\r\nInstalling ri documentation for bundler-1.13.7\r\nDone installing documentation for bundler after 5 seconds\r\n1 gem installed<\/pre>\n<p>Install and setup Bluepill<\/p>\n<pre>gem install bluepill\r\necho &#039;alias bluepill=&quot;NOEXEC_DISABLE=1 bluepill --no-privileged -c ~\/.bluepill&quot;&#039; &gt;&gt; ~\/.bashrc\r\nsource ~\/.bashrc\r\nrvm wrapper $(rvm current) bootup bluepill\r\nrvm wrapper $(rvm current) bootup bundle<\/pre>\n<p>and create a cronjob for Bluepill<\/p>\n<pre>crontab -e\r\n@reboot RUBY_GC_MALLOC_LIMIT=90000000 RAILS_ROOT=\/var\/www\/discourse RAILS_ENV=production NUM_WEBS=2 \/home\/discourse\/.rvm\/bin\/bootup_bluepill --no-privileged -c ~\/.bluepill load \/var\/www\/discourse\/config\/discourse.pill<\/pre>\n<p>Pull down Discourse from their official GitHub account<\/p>\n<pre>cd \/var\/www\/discourse\r\ngit clone git:\/\/github.com\/discourse\/discourse.git .<\/pre>\n<p>Create configuration files and setup Discourse<\/p>\n<pre>cp config\/discourse.pill.sample config\/discourse.pill\r\ncp config\/discourse_defaults.conf config\/discourse.conf<\/pre>\n<p>Edit the <code>discourse.conf<\/code> file and enter your hostname, all necessary information about the PostgreSQL database and user and your mail server information.<\/p>\n<p>Create and initialize Discourse PostgreSQL database<\/p>\n<pre>createdb discourse\r\nRUBY_GC_MALLOC_LIMIT=90000000 RAILS_ENV=production bundle exec rake db:migrate\r\nRUBY_GC_MALLOC_LIMIT=90000000 RAILS_ENV=production bundle exec rake assets:precompile<\/pre>\n<p>Now, execute the following command to start Discourse<\/p>\n<pre>RUBY_GC_MALLOC_LIMIT=90000000 RAILS_ROOT=\/var\/www\/discourse RAILS_ENV=production NUM_WEBS=2 bluepill --no-privileged -c ~\/.bluepill load \/var\/www\/discourse\/config\/discourse.pill\r\nexit<\/pre>\n<p>Create Nginx configuration files and configure it for Discourse<\/p>\n<pre>cp \/var\/www\/discourse\/config\/nginx.global.conf \/etc\/nginx\/conf.d\/local-server.conf\r\ncp var\/www\/discourse\/config\/nginx.sample.conf \/etc\/nginx\/conf.d\/discourse.conf\r\nmkdir -p \/var\/nginx\/cache<\/pre>\n<p>edit the <code>\/etc\/nginx\/conf.d\/discourse.conf<\/code> file, change the server_name with your domain name.<\/p>\n<p>Restart nginx for the changes to take effect.<\/p>\n<pre>systemctl restart nginx<\/pre>\n<p>If you closely followed this tutorial, you will able to access Discourse in your favorite web browser at http:\/\/yourdomain.tld . For more information about Discourse please visit their official website.<\/p>\n<hr \/>\n<p>Of course, you don\u2019t have to do any of this if you use one of our <a href=\"https:\/\/www.linuxcloudvps.com\/cloud-vps.html\">Linux Cloud VPS Hosting<\/a> services, in which case you can simply ask our expert Linux admins to install this on your server for you. They are available 24\u00d77 and will take care of your request immediately.<\/p>\n<p><span style=\"color: #ff0000;\"><strong>PS.<\/strong><\/span> If you liked this post please share it with your friends on the social networks using the buttons on the left or simply leave a reply below. Thanks.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Discourse is a simple and clean, open-source forum platform built with Ruby on Rails. This tutorial describes how to install Discourse on a CentOS 7 Cloud VPS.<\/p>\n","protected":false},"author":2,"featured_media":494,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[22,94,132],"class_list":["post-493","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorials","tag-centos","tag-discourse","tag-linuxcloudvps"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Install Discourse on a CentOS 7 Cloud VPS | LinuxCloudVPS Blog<\/title>\n<meta name=\"description\" content=\"Discourse is a simple and clean, open-source forum platform built with Ruby on Rails. 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