Redmine 6.1 with Passenger and nginx on Ubuntu 24.04

For the old-school crew who want one reference place to getting Redmine up and running, this guide will walk through the maze of twisty little passages, all alike.

These flexible instructions will get an up to date, robust, secure installation going.

• Ubuntu 24.04 LTS - a mature Ubuntu version with long term support
• MySQL - the database
• Ruby - the technology on which Redmine runs, installed using RVM to manage the ruby version and have access to up to date components
• Phusion Passenger- the application container in which to run Redmine
• nginx - the web server within which Redmine runs 

Install MySQL

Install MySQL. For this step, relying on the Ubuntu packages is fine.

sudo apt-get install -y mysql-server libmysqlclient-dev

Connect to the mysql service (sudo mysql) and create the database and provide access to the redmine database user:

sudo mysql

CREATE DATABASE redmine CHARACTER SET utf8mb4;

CREATE USER 'redmine'@'localhost' IDENTIFIED BY 'yourpassword';

GRANT ALL PRIVILEGES ON redmine.* TO 'redmine'@'localhost';

If this is just a test system, move onto the Ruby Installation section.

MySQL Data Disk (Optional)

For production systems, a separate data disk should be used rather that storing data on the same partition as the root system. Stop the database service and then migrate the data directory.

sudo systemctl stop mysql

sudo rsync -avzh /var/lib/mysql  /websvc 

(Replace /websvc with the top level of the new data directory; rsync preseves all the correct permissions)

Modify the data directory configuration in MySQL:

sudo vim /etc/mysql/mysql.conf.d/mysqld.cnf

#datadir = /var/lib/mysql #old location

datadir = /websvc/mysql #new location

Update AppArmor, otherwise the mysql process won't start. 

sudo vim /etc/apparmor.d/tunables/alias

    alias /var/lib/mysql/ -> /websvc/mysql/,

Don't forget the extra comma; it is not a typo!

Now restart both services. If everything has been done correctly, they will start without error.

sudo systemctl reload apparmor

sudo systemctl start mysql

Log into the database system to ensure everything looks okay:

sudo mysql

SELECT @@datadir;

The updated data directory should be evident.

 

Ruby Installation

Many methods exist to install Ruby. Unfortunately, the most convenient using apt-get will leave the system many versions behind, which means many plugins for redmine, and parts of redmine itself, will be unsupported and likely break. 

RVM is the recommended method to provide clean management of ruby versions.

sudo apt-get update

sudo apt-get install -y curl gnupg build-essential

sudo gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB

curl -sSL https://get.rvm.io | sudo bash -s stable

sudo usermod -a -G rvm `whoami`

Exit the session and relog back in, otherwise the following steps won't work. As of this writing ruby 3.4.7 is the latest stable release. 

Redmine 6.1 requires Ruby 3.2, 3.3, or 3.4. 

rvm install 3.4.7

rvm --default use ruby-3.4.7

gem install bundler --no-document

Ruby should now be installed.

ruby -v

ruby 3.4.7 (2025-10-08 revision 7a5688e2a2) +PRISM [x86_64-linux]

Note: once setup, each user of RVM needs to be added to the rvm group.

sudo usermod -a -G rvm username

Phusion Passenger Installation

Many options exist for application containers. Phusion has a Passenger-nginx combo that is is purpose built for Ruby and Rails applications. Installation instructions are pulled from the Phusion site.

First step is to install nginx, if it is not already present. 

 sudo apt-get install -y nginx

Then set up the Passenger repository:

# Install PGP key and add HTTPS support for APT

sudo apt-get install -y dirmngr gnupg apt-transport-https ca-certificates curl

curl https://oss-binaries.phusionpassenger.com/auto-software-signing-gpg-key.txt | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/phusion.gpg >/dev/null

# Add Passenger APT repository

sudo sh -c 'echo deb https://oss-binaries.phusionpassenger.com/apt/passenger noble main > /etc/apt/sources.list.d/passenger.list'

Install Passenger and the nginx module:

sudo apt-get update

sudo apt-get install -y libnginx-mod-http-passenger

And finally move the configuration files to the correct places:

if [ ! -f /etc/nginx/modules-enabled/50-mod-http-passenger.conf ]; then sudo ln -s /usr/share/nginx/modules-available/mod-http-passenger.load /etc/nginx/modules-enabled/50-mod-http-passenger.conf ; fi

sudo ls /etc/nginx/conf.d/mod-http-passenger.conf

Nginx can now be restarted and should have Passenger running within. 

sudo service nginx restart

Optionally, the following health checks can be run.

sudo /usr/bin/passenger-config validate-install

sudo /usr/sbin/passenger-memory-stats

Once the Redmine installation is ready, one more nginx configuration update will be needed. 

Create a Redmine Service Account

Before doing too much with Ruby, create a redmine service account. The home directory is located where redmine is going to be installed - for production systems this should be on a separate partition. 

In this example /websvc/redmine is where Redmine will be installed. This directory will be created when the user is created.

sudo adduser --system --shell /bin/bash --gecos 'Redmine Administrator' --group --disabled-password --home /websvc/redmine redmine; sudo usermod -a -G rvm redmine

Give the account sudo privileges (temporarily).

sudo visudo

    redmine    ALL=(ALL)      NOPASSWD:ALL

As of Ubuntu 21, the user's home directory is locked down such that nginx will not be able to access the Redmine installation. This one step will save many minutes and/or hours of troubleshooting.

sudo su - redmine  # should result in being in the redmine installation directory

chmod 755 .

Whew. Like a hero that doesn't show up until the third reel of a movie, Redmine is finally on the scene.

Install Redmine with the Redmine Service Account

As the redmine user, and in the redmine home directory (/websvc/redmine), pull down the latest stable release.

wget https://www.redmine.org/releases/redmine-6.1.0.tar.gz

tar xvfz redmine-6.1.0.tar.gz

ln -s redmine-6.1.0 redmine

rm redmine-6.1.0.tar.gz

Configure the Redmine mysql Connection

As the redmine service account, update the production database entry with the account connection information.

cd redmine

cp -pR config/database.yml.example config/database.yml

vim config/database.yml

database: redmine

host: localhost

username: redmine

password: "yourpassword"

 

Install Redmine Ruby Requirements

As the redmine service account, adding the Redmine gems dependencies.

bundle config set --local without 'development test'

bundle install

If versions and such match these instructions, the bundle install should go clean:

Bundle complete! 52 Gemfile dependencies, 94 gems now installed.

If versions are different or new features are needed, some iteration may be needed to build and install the gems. This seems to be a "normal" task for ruby administrators. Apply google-fu or a chatbot and iterate.

Generate the token:

bundle exec rake generate_secret_token

Then initialize the database:

RAILS_ENV=production bundle exec rake db:migrate

Optionally load default data as well:

RAILS_ENV=production bundle exec rake redmine:load_default_data

Update nginx to Run Redmine

More configuration will be needed to SSL-ize the system and lock it down. But for now, these steps will get the Redmine site up and running.

These steps do not need to be run as the redmine user.

Confirm the Ruby runtime location, the result will be used in a later step.

passenger-config about ruby-command

To use in Nginx : passenger_ruby /usr/local/rvm/gems/ruby-3.4.7/wrappers/ruby

Update the root location and add passenger configuration. The assumption is your redmine root location is also on the /websvc partition.

sudo cp /etc/nginx/sites-available/default /etc/nginx/sites-available/default.orig

sudo vim /etc/nginx/sites-available/default

root /websvc/redmine/redmine/public; #installation location

passenger_enabled on;  #turn on application container

passenger_ruby /usr/local/rvm/gems/ruby-3.4.7/wrappers/ruby; #Ruby runtime

client_max_body_size 10m; # Max attachment size allowed

Then to prevent a mess of 404 errors, comment out the location entry. Missing this step results in only getting a 404 and nothing else.

#location / {

    # First attempt to serve request as file, then

    # as directory, then fall back to displaying a 404.

    #try_files $uri $uri/ =404;

#}

Now everything should be ready to start. This is done by restarting nginx. 

sudo service nginx restart

Monitor the following logs to ensure things start clean:

tail -f /var/log/nginx/error.log

tail -f  /data/redmine/redmine/log/production.log

Congratulations, the redmine site should now be up and available.

Initial login is admin : admin. 

Clean up

Remove sudo privileges from the redmine account. Move the site to HTTPS, ideally using the excellent Let's Encrypt service.

 

Links of Interest

General Redmine installation

Always a good place to review the latest information on generic Redmine installations.

https://www.redmine.org/projects/redmine/wiki/RedmineInstall

Phusion Passenger installation

https://www.phusionpassenger.com/docs/tutorials/deploy_to_production/installations/oss/ownserver/ruby/nginx/

Redmine, Passenger, and Nginx on Ubuntu 16.04

Redmine with Passenger and Nginx on Ubuntu 16.04

Just in time for Ubuntu 18, here are Ubuntu 16 instructions for getting Redmine up and running. Though better than on Ubuntu 14, this is still a maze of twisty little passages, all alike. 

Here are flexible instructions to get an up to date, robust, secure installation going.

• Ubuntu 16.04 LTS - a mature Ubuntu version with long term support 
• MySQL - the database 
• Ruby - the technology on which Redmine runs, installed using RVM to manage the ruby version and have access to up to date components 
• Phusion Passenger- the application server in which to run Redmine 
• Nginx - the web server within which Redmine runs   

 

MySQL Configuration

Install MySQL. For this step, relying on the Ubuntu packages is fine.

sudo apt-get install -y mysql-server libmysqlclient-dev

 Connect to the mysql service (mysql -p) and create the database and provide access to the redmine user:

mysql -p -u root
CREATE DATABASE redmine CHARACTER SET utf8;
CREATE USER 'redmine'@'localhost' IDENTIFIED BY 'yourpassword';
GRANT ALL PRIVILEGES ON redmine.* TO 'redmine'@'localhost';

If this is just a test system, move onto the Ruby Installation section. 

For production systems, a separate data disk should be used rather that storing data on the same partition as the root system. Stop the service and then migrate the data directory.

 service mysql stop

Modify the data directory configuration in MySQL:

sudo vim /etc/mysql/mysql.conf.d/mysqld.cnf
#datadir = /var/lib/mysql #old location
datadir = /data/mysql # new location

On install, MySQL 5.7 automatically initiates the data directory. So this must be moved to the new location.

sudo mkdir /data
sudo mv /var/lib/mysql/ /data/mysql/

Update AppArmor, otherwise the mysql process won't start. The MySQL 5.7 and Ubuntu combination have an AppArmor bug that shows when moving the data directory. The error will show in syslog like this:

Jan 12 10:03:12 ubuntu16 kernel: [ 1289.012262] audit: type=1400 audit(1515780192.392:116): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/proc/8834/status" pid=8834 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=111 ouid=111
Jan 12 10:03:12 ubuntu16 kernel: [ 1289.012897] audit: type=1400 audit(1515780192.396:117): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=8834 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=111 ouid=0

To really geek out, this bug has one of the more sad but funny threads I've read in a long time. They eventually get to the right conclusion and open two bugs, but getting there is a journey. We will patch it ourselves, because the bugs haven't been actually fixed in the Ubuntu release.

To update AppArmor:

sudo vim /etc/apparmor.d/usr.sbin.mysqld

In the "Allow system resource access" section add the following to fix the bug(s): 

/sys/devices/system/node/ r,
/sys/devices/system/node/** r,
/proc/** r,

And under the "Allow data dir access" section change the entries from /var/lib/mysql/ to the new directory, /data/mysql/.

# Allow data dir access
#  /var/lib/mysql/ r,
#  /var/lib/mysql/** rwk,
/data/mysql/ r,
/data/mysql/** rwk,

Reload AppArmor:

sudo systemctl reload apparmor

Restart mysql:

 service mysql start

The system should start without error if everything has been done correctly. Run the following command to ensure everything looks okay:

mysql -p -u redmine

 

Ruby Installation

Many methods exist to install Ruby. Unfortunately, the most convenient using apt-get will leave the system many versions behind, which means many plugins for redmine, and parts of redmine itself, will be unsupported. RVM is a tried and true method to provide clean management of ruby versions. 

For whatever reason, these steps must be run as root:

sudo su - #get into root
apt-add-repository -y ppa:rael-gc/rvm
apt-get update
apt-get install rvm

Once done, logout and log back in as root.

exit
sudo su - #log out and log back in
command curl -sSL https://rvm.io/mpapis.asc | gpg --import -
rvmsudo rvm get stable
rvm requirements
rvm install 2.5.0
rvm use 2.5.0 --default

Test that the install looks okay. 

ruby -v
ruby 2.5.0p0 (2017-12-25 revision 61468) [x86_64-linux] 

  Note: once setup, each user of rvm needs to be added to the rvm group. 

sudo usermod -a -G rvm username

Phusion Passenger Installation

Again, many options exist for application containers. Phusion has a Passenger-Nginx combo that is straight-forward to install and configure. It does not need to be done as root.

Details of this installation can be found on the Phusion site.

sudo apt-get install -y dirmngr gnupg
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 561F9B9CAC40B2F7
sudo apt-get install -y apt-transport-https ca-certificates
sudo sh -c 'echo deb https://oss-binaries.phusionpassenger.com/apt/passenger xenial main > /etc/apt/sources.list.d/passenger.list'
sudo apt-get update
sudo apt-get install -y nginx-extras passenger

Nginx Configuration 

Passenger configuration with nginx has simplified since previous versions. 

Enable passenger in the nginx:

sudo vim /etc/nginx/nginx.conf

Uncomment the following line:

include /etc/nginx/passenger.conf;

 Restart nginx:

sudo service nginx restart

 Confirm everything looks correct

sudo /usr/bin/passenger-config validate-install
sudo /usr/sbin/passenger-memory-stats

The result will be something like this:

/usr/lib/ruby/vendor_ruby/phusion_passenger/locations.ini

Also, confirm the correct location of the correct ruby.

which passenger-config 
/usr/bin/passenger-config #use this result to perform the next command
/usr/bin/passenger-config --ruby-command

The result will be something like this:

/usr/local/rvm/gems/ruby-2.5.0/wrappers/ruby

Build out the site - assuming http for now. More configuration will be needed to SSL-ize the system and lock it down. But for now, this will get things correct and running. 

sudo cp /etc/nginx/sites-available/default /etc/nginx/sites-available/default.orig
sudo vim /etc/nginx/sites-available/default

Update the root location and add passenger configuration. The assumption is your redmine root location is also on the /data partition. This directory will be created when we add the redmine account.

root /data/redmine/redmine/public/; #installation location
passenger_enabled on; #turn on application container
client_max_body_size 10m; # Max attachement size allowed  

Then to prevent a mess of 404 errors, comment out the location entry. Missing this step results in a special level of redmine 404 hell.

#location / {
    # First attempt to serve request as file, then
    # as directory, then fall back to displaying a 404.
    #try_files $uri $uri/ =404;
#}

No need to restart nginx just yet. The system is almost ready for redmine installation.

 

Create the redmine account

Before doing too much with ruby, create a redmine service account. Note: Ideally the home directory is located where redmine is going to be installed - for production systems this should be on a separate partition. 

sudo adduser --system --shell /bin/bash --gecos 'Redmine Administrator' --group --disabled-password --home /data/redmine redmine; sudo usermod -a -G rvm redmine 

 Give the account sudo privileges (temporarily).

sudo visudo 
redmine    ALL=(ALL)      NOPASSWD:ALL

Welcome to dependency-o-rama 

The ruby add-on dependencies next depends (ha ha get it?) on various ruby pieces needed to install ruby components. A minimal list will look something like this: 

sudo apt-get install -y build-essential imagemagick libmagickwand-dev

Redmine, remember this was the main point of the article?

Whew. Like a hero that doesn't show up until the third reel of a movie, redmine is finally on the scene. Yes, this is just like Batman vs Superman. There is a lot of build up to the main event, and when you get there it is anticlimactic.

Install the latest redmine

Switch to the redmine user and pull down the latest stable release.

sudo su - redmine # should result in being in the redmine installation directory
wget http://www.redmine.org/releases/redmine-3.4.4.tar.gz
tar xvfz redmine-3.4.4.tar.gz
ln -s redmine-3.4.4 redmine
rm redmine-3.4.4.tar.gz

Configure the mysql connection 

Update the production entry with the account connection information.

cd redmine 
cp -pR config/database.yml.example config/database.yml
vim config/database.yml

Adding gems - truly outrageous!

Configure the gems - and avoid doing this as root. As with everything in redmine administration, this should be as that fancy redmine service account:

gem install bundler
bundle install --without development test

If versions and such match these instructions, the bundle install should go clean:

Bundle complete! 31 Gemfile dependencies, 55 gems now installed.
Gems in the groups development and test were not installed.
Use `bundle show [gemname]` to see where a bundled gem is installed.

If versions are different or new features are needed, some iteration may be needed to build and install the gems. This seems to be a "normal" task for ruby administrators. Apply google-fu and iterate. 

Rake magic

Next run the magic rake commands. All magic comes in three. 

bundle exec rake generate_secret_token
RAILS_ENV=production bundle exec rake db:migrate
RAILS_ENV=production bundle exec rake redmine:load_default_data

Now everything should be ready to start. This is done by restarting nginx. Monitor the following logs to ensure things start clean: 

tail -f /var/log/nginx/error.log
tail -f  /data/redmine/redmine/log/production.log

Clean up

Congratulations, the redmine site should now be up and available. 

Remove sudo privileges from the redmine account. Move the site to HTTPS, ideally using the excellent Let's Encrypt service. These instructions can be found here.. 

Links of interest 

General Redmine installation 
Always a good place to review the latest information on generic Redmine installations.
https://www.redmine.org/projects/redmine/wiki/RedmineInstall
 
Using Google Authentication
If using Google Apps or Google Auth is of interest with Redmine, a longstanding plugin has been brought back to life with a patch. 

The plugin can be found here:
https://github.com/twinslash/redmine_omniauth_google

But in modern ruby and google land, a patch will be needed. The plugin will install just fine, but it will not save any configuration information, nor will it put the google button on the login page without the patch below.
https://github.com/twinslash/redmine_omniauth_google/pull/42

Though out of date, this article has some pointers on setting up the google side:
https://adminsdiary.wordpress.com/common-installations/redmine-installation-with-google-authentication/

Installing RVM 
https://github.com/rvm/ubuntu_rvm

Instead of MySQL, consider Aurora 
For some of my more recent Redmine installations, I've been using Amazon Aurora. It is cheaper than MySQL on AWS, compatible with MySQL 5.6, backups are taken care of, and even has regional failover built in. Much better than researching AppArmor patches because you want to simply move a data directory. 

Setting up redmine is the same as above, but instead of doing MySQL, connect to an AWS Aurora instance. (You will still need the MySQL client - libmysqlclient-dev):
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Aurora.Connecting.html
 

Redmine, Passenger, and Nginx on Ubuntu

Redmine with Passenger and Nginx on Ubuntu

Have to say this should be easier nowadays, but getting Redmine up and running can still be a maze of twisty little passages, all alike. 

Trying to decide what is a good option and what is not requires a solid knowledge of Linux AND some mad Google-Fu. Cobbled from multiple sources, here are flexible instructions to get an up to date, robust, secure installation going.

• Ubuntu 14.04 LTS - a mature Ubuntu version with long term support 
• MySQL - the database 
• Ruby - the technology on which Redmine runs, installed using RVM to manage the ruby version and have access to up to date components 
• Phusion Passenger- the application server in which to run Redmine 
• Nginx - the web server within which Redmine runs   

MySQL Configuration

Install MySQL. For this step, relying on the Ubuntu packages is fine.

sudo apt-get install -y mysql-server libmysqlclient-dev

For production systems, a separate data disk should be used rather that storing it on the same partition as the root system. This can be changed by modifying the data directory configuration in MySQL: 
/etc/mysql/my.cnf

#datadir = /var/lib/mysql #old location
datadir = /data/mysql # new location

If going down this path, set permissions correctly on your new location: 

chown mysql:mysql /data/mysql
chmod 700 /data/mysql

Update AppArmor, otherwise the mysql process won't start.

sudo vim /etc/apparmor.d/usr.sbin.mysqld 

Restart mysql. 

 service mysql start

Connect to the mysql service (mysql -p) and create the database and provide access to the redmine user:

mysql -p
CREATE DATABASE redmine CHARACTER SET utf8;
CREATE USER 'redmine'@'localhost' IDENTIFIED BY 'yourpassword';
GRANT ALL PRIVILEGES ON redmine.* TO 'redmine'@'localhost';

Ruby Installation

Many methods exist to install Ruby. Unfortunately, the most convenient using apt-get will leave the system many versions behind, which means many plugins for redmine, and parts of redmine itself, will be unsupported. RVM is a tried and true method and provides clean management of ruby versions. 

For whatever reason, these steps seem to work best as root. 

sudo su - 
gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
curl -sSL https://get.rvm.io | bash -s stable
exit 

Once setup, each user of rvm needs to be added to the rvm group. 

sudo usermod -a -G rvm username

Logout and log back in to complete the installation.

rvm requirements

Now choose a ruby version. As guidance, a 2.0 or higher is recommended. RVM has pre-compiled versions, which make installation seamless.

rvm install 2.2.3
rvm use 2.2.3 --default

Then confirm everything looks correct. 

ruby -v
ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-linux]

Phusion Passenger Installation

Again, many options exist for application containers. Phusion has a Passenger-Nginx combo that is straight-forward to install and configure. It also installs an old version of ruby, but via configuration the package can be pointed to our more recent version.

Details of this installation can be found on the Phusion site.

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 561F9B9CAC40B2F7
sudo sh -c 'echo deb https://oss-binaries.phusionpassenger.com/apt/passenger trusty main > /etc/apt/sources.list.d/passenger.list'
sudo apt-get update
sudo apt-get install nginx-extras passenger

Nginx Configuration 

Nginx has to be pointed to the correct ruby and the correct passenger installation. 

Ensure passenger is installed correctly and confirm the correct location. This location will be needed for nginx. 

/usr/bin/passenger-config validate-install
passenger-config --root

The result will be something like this:

/usr/lib/ruby/vendor_ruby/phusion_passenger/locations.ini

Also, confirm the correct location of the correct ruby.

which passenger-config 
/usr/bin/passenger-config #use this result to perform the next command
/usr/bin/passenger-config --ruby-command

The result will be something like this:

/usr/local/rvm/gems/ruby-2.2.3/wrappers/ruby

Update nginx to point to the correct location. Don't forget semi-colons at the end!

sudo vim /etc/nginx/nginx.conf
# passenger_root /usr/lib/ruby/vendor_ruby/phusion_passenger/locations.ini; #old entry
# passenger_ruby /usr/bin/passenger_free_ruby; #old entry
passenger_root /usr/lib/ruby/vendor_ruby/phusion_passenger/locations.ini;
passenger_ruby /usr/local/rvm/gems/ruby-2.2.3/wrappers/ruby;

Restart nginx

sudo service nginx restart  

Enable the www directory. 

sudo mkdir /var/www
sudo chown -R www-data:www-data /var/www

Build out the site - assuming http for now. More configuration will be needed to SSL-ize the system and lock it down. But for now, this will get things correct and running. 

cp /etc/nginx/sites-available/default /etc/nginx/sites-available/default.orig
vim /etc/nginx/sites-available/default

 Update the root location and add passenger configuration.

root /data/redmine/redmine/public/; #installation location
passenger_enabled on; #turn on application container
client_max_body_size 10m; # Max attachement size allowed  

Then to prevent a mess of 404 errors, comment out the location entry. Missing this step results in a special level of redmine 404 hell.

#location / {
    # First attempt to serve request as file, then
    # as directory, then fall back to displaying a 404.
    #try_files $uri $uri/ =404;
#}

The system is almost ready for redmine installation.
 

Create the redmine account

Before doing too much with ruby, create a redmine service account. Note: Ideally the home directory located where redmine is going to be installed - for production systems this should be on a separate partition. 

sudo adduser --system --shell /bin/bash --gecos 'Redmine Administrator' --group --disabled-password --home /data/redmine redmine; sudo usermod -a -G rvm redmine 

 Give the account sudo privileges (temporarily).

sudo visudo 
redmine    ALL=(ALL)      NOPASSWD:ALL

Welcome to dependency-o-rama 

The ruby add-on dependencies next depends (ha ha get it?) on various ruby pieces needed to install ruby components. A minimal list will look something like this: 

sudo apt-get install -y build-essential imagemagick libmagickwand-dev

Redmine, remember this was the main point of the article?

Whew. Like a hero that doesn't show up until reel 3, redmine is finally on the scene.

Install the latest

Switch to the redmine user and pull down the latest stable release.

sudo su - redmine # should result in being in the redmine installation directory
wget http://www.redmine.org/releases/redmine-3.2.1.tar.gz
tar xvfz redmine-3.2.1.tar.gz
ln -s redmine-3.2.1 redmine
rm redmine-3.2.1.tar.gz

Configure the mysql connection 

Update the production entry with the account connection information.

cd redmine 
cp -pR config/database.yml.example config/database.yml
vim config/database.yml

Adding gems - truly outrageous!

Configure the gems - and avoid doing this as root. As with everything in redmine administration, this should be as that fancy redmine service account:

gem install bundler
bundle install --without development test

If versions and such match these instructions, the bundle install should go clean:

Bundle complete! 30 Gemfile dependencies, 54 gems now installed.
Gems in the groups development and test were not installed.
Use `bundle show [gemname]` to see where a bundled gem is installed.

If versions are different or new features are needed, some iteration may be needed to build and install the gems. This seems to be a "normal" task for ruby administrators. Apply google-fu and iterate. 

Rake magic

Next run the magic rake commands. All magic comes in three. 

bundle exec rake generate_secret_token
RAILS_ENV=production bundle exec rake db:migrate
RAILS_ENV=production bundle exec rake redmine:load_default_data

Now everything should be ready to start. This is done by restarting nginx. Monitor the following logs to ensure things start clean: 

tail -f /var/log/nginx/error.log
tail -f  /data/redmine/redmine/log/production.log

Clean up

Congratulations, the redmine site should now be up and available. 

Remove sudo privileges from the redmine account. Move the site to SSL, ideally using the excellent Let's Encrypt service. These instructions can be found here.. 

Links of interest 

Plenty of chatter and individual parts here to help troubleshoot and see where much of this has been culled. Enjoy. 

Ways to install ruby on Ubuntu 

http://stackoverflow.com/questions/26595620/how-to-install-ruby-2-1-4-on-ubuntu-14-04
https://gorails.com/setup/ubuntu/14.04
https://www.digitalocean.com/community/tutorials/how-to-install-rails-and-nginx-with-passenger-on-ubuntu
http://stackoverflow.com/questions/5201689/rmagick-gem-install-cant-find-magick-config

Ways to install Nginx and Passenger

https://www.digitalocean.com/community/tutorials/how-to-deploy-a-rails-app-with-passenger-and-nginx-on-ubuntu-14-04
http://www.redmine.org/projects/redmine/wiki/HowTo_configure_Nginx_to_run_Redmine

Troubleshooting Passenger installations 

https://www.phusionpassenger.com/library/config/nginx/reference/#passenger_root
https://www.phusionpassenger.com/library/admin/nginx/troubleshooting/ruby/
https://www.phusionpassenger.com/library/config/nginx/reference/#setting_correct_passenger_ruby_value

Ways to install Redmine 

http://www.redmine.org/projects/redmine/wiki/HowTos
http://www.redmine.org/projects/redmine/wiki/RedmineInstall#fn0
https://blog.rudeotter.com/install-redmine-with-nginx-puma-and-mariadbmysql-on-ubuntu-14-04/
http://www.redminecrm.com/boards/4/topics/448-installing-redmine-2-2-passenger-nginx-rvm-on-ubuntu-12-04
https://nidomiro.de/2015/03/installing-redmine-3-0-on-clean-ubuntu-14-04/
http://www.redmine.org/projects/redmine/wiki/HowTo_Install_Redmine_30x_on_Ubuntu_1404_with_Apache2_Phusion_Passenger_MySQL_Subversion_and_Git_%28Gitolite%29#Installing-Ruby