Never had such problem before with vps that I set up from zero, this one (Ubuntu 12.04, 64bit) was installed by some other developer.
The problem
in .bashrc file i have:
export FACEBOOK_ID=123456789
export FACEBOOK_SECRET=987654321
now in terminal if I type env I see these variables.
if I open rails console and type ENV["FACEBOOK_ID"] or ENV["FACEBOOK_SECRET"] I also can see the apropriate values.
The problem is that I have to use FACEBOOK_ID in the app in a view file and I do it with:
<%= ENV["FACEBOOK_ID"] %>
on local machine this returns the right value, in production on vps it returns nothing.
My idea is that the vps was not set up correctly, I couldnt find apache on it or ngnix, and the app is in var/www/apps/app_name/.
What could be wrong and how can I get this env variables in my template?
update
files available in root directory:
.bash_profile .bashrc .cshrc .zprofile .zshrc
Don't put it in local environment. What to do when you deploy the app? What to do when you want to develop another app on your local machine which use Facebook id as well?
Use Figaro gem. It's built for handling such case, env variables and private data. The env variables can be set in YAML file in app and won't be committed to repo. You won't regret.
Related
i need to set an environment variable for the rails app to use
SECRET_KEY_BASE=9941144eb255ff0ffecasdlkjqweqwelkjasdlkjasd
the config settings for production is as shown below
# Do not keep production secrets in the repository,
# instead read values from the environment.
production:
secret_key_base: <%= ENV["SECRET_KEY_BASE"] %>
how can i set the environment variable using the linux command
export VARNAME="my value"
I tried to set the variable but looks like it needs to be for the right user. Sorry i am not an expert in linux.
I appreciate any help! Thanks!
export VARNAME="my value"
Well the above works for your current terminal session. After this command, all the subsequent commands can access this variable. Try running this:
echo $VARNAME
It will print the value my value in the console. If you want this behaviour to be persisted, you need to place the export command in your OS' config file (~/.bashrc in case of Ubuntu).
After editing this file, either restart your terminal, or run this:
source ~/.bashrc
This will reload the file in your current terminal session. Alternatively, you can try running your Rails server (or a rake command) as follows:
VARNAME="my value" rails s
For your local development I suggest you to use dotenv (https://github.com/bkeepers/dotenv) or figaro (https://github.com/laserlemon/figaro) and follow the README you find in the gem itself. This gives you much more flexibility than using directly environment variables because you set them only for this specific project and each project can have different of them.
You need to have either a .env file or a application.yml file where you will define your environment variables.
Remember to not commit or push this file to your repository because it contains sensible information!
When you will deploy to production you can use real environment variables or use admin panel control (on Heroku for example)
I have been trying to deploy a rails project and it requires some environmental variables so I did some research and it turns out the best place to add them is inside /etc/environment which i did so and then sourced the file.
I now can get/access the environmental variables by running echo $variablename; however the rails application can still not see these environmental variables?
/etc/environment is not automatically sourced by all shells in all login contexts. To get the settings into the rails environment, there are a couple options. The easiest is probably to modify (or create) the .bashrc (assuming the rails user's shell is bash, which is the Ubuntu default shell) in the home directory of the user rails runs as and add the following line:
source /etc/environment
If you want the variables to be available to all users on the system, you can create a file called /etc/profile.d/environment.sh (or something similar) and add the above line to that.
For either solution, log in again as the rails user and verify the environment.
You might want to use this gem for env variables:
https://github.com/bkeepers/dotenv
I set up a Centos 7 VM using this tutorial (standalone passenger) and RVM. I am deploying the rails app via Capistrano.
https://www.phusionpassenger.com/library/walkthroughs/deploy/ruby/ownserver/standalone/oss/install_language_runtime.html
Everything seems to work, except no matter where I set environment variables, the ENV["myvar"] can't be read in Rails.
I've tried export myvar=test SSHed as the "deployers" as well as root. I've also tried adding it to bashrc. If I login as deployer and do the following:
#symlink to current capistrano deploy
cd ~/rails/railsapp/current/
rails r "puts ENV['myvar']"
It gives me the correct ENV output. However, if I try to output ENV['myvar'] from my actual deployed via capistrano rails app, I get nothing.
Where am I supposed to set these ENV vars? I know the ENV vars in rails are done correctly, because the app deployed to heroku, as well as on my dev machine, correctly output ENV['myvar'].
Generally, your setup should work. Since version 4, a standalone Passenger should inherit all variables defined in the shell startup scripts. There is a nice documentation about environment variables in various scenarios related to using Passenger.
I would check or two things:
That your .bashrc is loaded from .profile. If it weren't, then your variables would be loaded only in an interactive shell but not in passenger, which would explain the behavior your describe when you tried to log in as the deployers. Let me quote from the doc:
Make sure your ~/.bashrc is actually included by your ~/.profile, which might not be the case if you created the user with useradd instead of adduser for example.
Also, take a look at this section of the docs and check that you obey the conditions upon which Passenger actually passes the environment vars to the application.
I need to set up an environment variable for my rails app. Both in my local machine and in the production server. I read some tutorials on the internet but NONE has given the complete instruction on how to set and use these variable in the actual production server. I use digital ocean and linux server to host my rails app.
I have spent days trying to figure this out, but still haven't found a clear and complete instruction from setting the variables on my local machine -> push it to git repo -> set and use the variables in production server. So, hope somebody can help me here, thanks!
UPDATE:
This is how I currently setup the environment variables in my rails app by using figoro gem:
You can set system-wide environment variables in the /etc/rc.local file (which is executed when the system boots). If your Rails app is the sole user of the Linux system, that is a good place to store credentials such as API keys because there is no risk of including this file in a public Git repository, as it is outside the application directory. The secrets will only be vulnerable if the attacker gains shell access to your Linux server.
Set the environment variables within /etc/rc.local (do not include the <> characters):
export SOME_LOGIN=<username>
export SOME_PASS=<password>
To see the value of an environment variable, use one of the following commands in the Linux shell:
printenv MY_VAR
echo $MY_VAR
To access those environment variables within Rails, use the following syntax:
Inside .rb files or at the rails console
ENV['MY_VAR']
Inside .yml files:
<%= ENV['MY_VAR'] %>
For anyone still having this issue, figaro now has an easy method in setting the production variables in heroku. Just run:
$ figaro heroku:set -e production
ryzalyusoff.
For Unix
You can use LINUX ENV in rails application.
# .env
GITHUB_SECRET_KEY=SECRET
TWITTER_ACCESS_KEY=XXXXXXXXXXXX
# in rails code
puts ENV["TWITTER_ACCESS_KEY"] # => SECRET
Create .env files for local machine and your production server. Export environment variables like this(on server with ssh):
export GITHUB_SECRET_KEY="XXXXXXXXXXXXXXXXXX"
Anyway, storing keys in config - bad idea. Just add .env.example, others keys configs add to .gitignore. Goodluck.
Example with Rails
For Windows
Syntax
SET variable
SET variable=string
SET /A "variable=expression"
SET "variable="
SET /P variable=[promptString]
SET "
Key
variable : A new or existing environment variable name e.g. _num
string : A text string to assign to the variable.
expression : Arithmetic expression
Windows CMD
I believe we should not push a secret file on git.
To ignore such file use gitignore file and push other code on the git.
On the server side just copy the secret file and create a symlink for that file.
You can find demo here http://www.elabs.se/blog/57-handle-secret-credentials-in-ruby-on-rails
You can set your environment variables in production in the same way, you do it for local system. However, there are couple of gems, which make it easier to track and push to production. Have a look at figaro. This will help you in setting up and deployment of env vars.
You can do this with figaro gem
or in rails 4 there is a file named secret.yml in config folder where you can define your environment variables this file is by default in .gitignore file.For production you need to manually copy that file to server for security reason so that your sensitive information is not available to any one
First create your variable like:
MY_ENV_VAR="this is my var"
And then make it global:
export MY_ENV_VAR
You can check if the process succeeded with:
printenv
Or:
echo MY_ENV_VAR
Just a quick question to which I couldn't find an answer on stackoverflow.
If it is easy to have environment variable for staging and production (on heroku for example), how can I set environment variable for my localhost (development environment)? (I am on a mac)
As of today I hardcode my api credential for development environment and I don't feel comfortable with that.
Thanks !
Use dotenv is intended to be used in development:
Add your application configuration to your .env file in the root of your project.
S3_BUCKET=YOURS3BUCKET
SECRET_KEY=YOURSECRETKEYGOESHERE
You may also add export in front of each line so you can source the file in bash.
in .bashrc
export S3_BUCKET=YOURS3BUCKET
export SECRET_KEY=YOURSECRETKEYGOESHERE
Then access in rails app ENV['S3_BUCKET']
Environment variables are best placed in your .bash_profile file which lives in your home directory on the Mac: /Users/you/.bash_profile. Open that file and add something like this to the end of it:
export MY_ENV_VAR=my_env_value
or
export MY_ENV_VAR="a string with spaces in it"
export is a shell command that sets environment variables. Your .bash_profile is a bash script that runs every time you open a new shell session (open a terminal window) and therefore your export commands will run and set the env vars.
Then they will be available in the ENV constant when you're in Ruby.
Edit /Users/your_user_name/.bash_profile and add there:
export RAILS_ENV=development