Remote SDK starting rails server exits while ssh cli session starts - ruby-on-rails

I'm working on a headless VM and configured my hosts Rubymine to use the remote SDK through the NAT interface of VirtualBox.
After configuring the remote SDK, my Run/Debug configuration looks fine. When I start the server, it returns the following output
/usr/bin/ruby -e '$stdout.sync=true;$stderr.sync=true;load($0=ARGV.shift)' /home/user/project/bin/rails server -b 0.0.0.0 -p 3000 -e development
git://github.com/rails/sprockets-rails.git (at master#06852de) is not yet checked out. Run `bundle install` first.
Process finished with exit code 11
When I fire up the same command, ssh'ed into the VM the server starts fine
The SDK seems to work; it invokes /usr/bin/ruby which is the proper path (no rvm)
The installed gem lib should be alright since everything works in ssh command line
The relevant lines in the Gemfile are
gem 'sprockets-rails', github: 'rails/sprockets-rails'
ruby '2.3.1'
gem 'rails', '~> 4.2'
The gems are installed in ~/.gem/ruby/2.3.0/bin/
The advice of the output to run bundle install is useless, since I did and works anyway in cli. It seems like Rubymine needs adjustments. Has anyone an idea what I could do about?

Found the answer!
Reason is the non-interactive shell session which sources less of your dotfiles (See man bash and search for non-interactive)
I knew it has nothing to do with Rubymine when I tried on my host system:
ssh user#127.0.0.1 "/usr/bin/ruby /home/user/project/bin/rails server -b 0.0.0.0 -p 3000 -e development"
which provides the same output as Rubymine did
also check ssh user#127.0.0.1 "env" to see variables of your shell environment.
man sshd 8 says how to set the environment, using the ~/.ssh/environment (file on the server, since man page is sshd) to store key/value pairs like KEY=value
This file is read into the environment at login (if it exists). It can
only contain empty lines, comment lines (that start with ‘#’), and
assignment lines of the form name=value. The file should be writable
only by the user; it need not be readable by anyone else. Environment
processing is disabled by default and is controlled via the
PermitUserEnvironment option.
Note the PermitUserEnvironment option, goes into your sshd.conf on the server

Related

Run `rails c` on GCloud instace with appengine gem

I have a Rails 6.0.0.rc1 application (with the appengine gem install) that I deployed to GCP. Is there a way to log into a remote rails console on the instance that runs the application? I tried this:
bundle exec rake appengine:exec -- bundle exec rails c
which gives the following output:
...
---------- EXECUTE COMMAND ----------
bundle exec rails c
Loading production environment (Rails 6.0.0.rc1)
Switch to inspect mode.
...
so apparently it executed the command, but closes the connection right after.
Is there an easy way to do this?
As reference: On Heroku this would simply be:
heroku run rails c --app my-application
There's a few steps involved:
https://gist.github.com/kyptin/e5da270a54abafac2fbfcd9b52cafb61
If you're running a Rails app in Google App Engine's flexible environment, it takes a bit of setup to get to a rails console attached to your deployed environment. I wanted to document the steps for my own reference and also as an aid to others.
Open the Google App Engine -> instances section of the Google Cloud Platform (GCP) console.
Select the "SSH" drop-down for a running instance. (Which instance? Both of my instances are in the same cluster, and both are running Rails, so it didn't matter for me. YMMV.) You have a choice about how to connect via ssh.
Choose "Open in browser window" to open a web-based SSH session, which is convenient but potentially awkward.
Choose "View gcloud command" to view and copy a gcloud command that you can use from a terminal, which lets you use your favorite terminal app but may require the extra steps of installing the gcloud command and authenticating the gcloud command with GCP.
When you're in the SSH session of your choice, run sudo docker ps to see what docker containers are presently running.
Identify the container of your app. Here's what my output looked like (abbreviated for easier reading). My app's container was the first one.
jeff#aef-default-425eaf...hvj:~$ sudo docker ps
CONTAINER ID IMAGE COMMAND NAMES
38e......552 us.gcr.io/my-project/appengine/default... "/bin/sh -c 'exec bun" gaeapp
8c0......0ab gcr.io/google_appengine/cloud-sql-proxy "/cloud_sql_proxy -di" focused_lalande
855......f92 gcr.io/google_appengine/api-proxy "/proxy" api
7ce......0ce gcr.io/google_appengine/nginx-proxy "/var/lib/nginx/bin/s" nginx_proxy
25f......bb8 gcr.io/google_appengine/fluentd-logger "/opt/google-fluentd/" fluentd_logger
Note the container name of your app (gaeapp in my case), and run container_exec bash.
Add ruby and node to your environment: export PATH=$PATH:/rbenv/versions/2.3.4/bin:/rbenv/bin:/nodejs/bin
cd /app to get to your application code.
Add any necessary environment variables that your Rails application expects to your environment. For example: export DATABASE_URL='...'
If you don't know what your app needs, you can view the full environment of the app with cat app.yaml.
bin/rails console production to start a Rails console in the Rails production environment.

Capistrano foreman cannot export upstart scripts because it's trying to run commands as root

I'm using capistrano3-foreman gem to deploy my app into production which is in a centOS server but capistrano is trying to run foreman export command from root. Since I have installed rvm and other stuff from a user which has no password privilege in sudoers file, foreman export cannot be completed.
I'm getting the following error.
sh: /root/.rvm/bin/rvm: No such file or directory
How can I prevent capistrano-foreman from trying to run the command as root and make it set to my user home path.
Thanks in advance
Ok, since RHEL & CentOS 7 migrated to systemd, first mistake was trying to export foreman to upstart.
But When I exported foreman to systemd, systemd did not recognised foreman export scripts as a service so it didn't work either.
After many hours of work & research I decided to take my chance with supervisord on CentOS 7 and now It works like a charm.
http://supervisord.org/installing.html
And please note that Debian & Ubuntu are also getting rid of upstart...

cloudcontrol.com tcp port in use & procfile multiple commands & push hooks

i'm trying to get redmine running on cloudcontrol.com. i've got four questions:
i need to do more that start a webserver, for example i need to run rake tasks each time i deploy. can i put those in a one liner? i got the following in my Procfile for testing:
web: touch foobar; echo "barbarz"; bundle exec rails s -p $PORT -e production
but i neither see a file foobar nor do i get barbarz in the log files :(
When i login to the server and want to start the application it tells me tcp $PORT is already in use:
u24293#depvk7jw2mk-24293:~/www$ fuser $PORT/tcp # netstat and lsof is not available
24293/tcp: 10 13
u24293#depvk7jw2mk-24293:~/www$ ps axu | grep 13
u24293 13 0.0 0.0 52036 3268 ? SNs 15:22 0:00 sshd: u24293#pts/0
by sshd??? why would that be?
i need to change this default behaviour during push:
-----> Rails plugin injection
Injecting rails_log_stdout
Injecting rails3_serve_static_assets
or run something after it as easyredmine doesnt like plugins in vendor/plugins (or i cahnge the code of easyredmine quickly). how would i do that (not change the code, run an after hook for that like with capistrano or so)?
we have our own gitlab on a dedicated server and for bundle i need to pull those gems. how can i get the public key of the user running the app before the first deployment so i can add it to gitlab?
thanks in advance :)
The web command is only executed in the web containers. Using run bash connects you to a special ssh container of your app. See https://www.cloudcontrol.com/dev-center/Platform%20Documentation#secure-shell-ssh
Generally, you can not put multiple commands in one Procfile line. Wrap them in a sh -c '<cmd1>; <cmd2>' call or use a shell script explicitly.
Keep in mind that this script will be executed in each container being started. This includes the number of containers you deploy your app with and any redeploys that are triggered by the platform during operation (in case of a node failures, addon changes etc.).
In the ssh container the $PORT is used by the ssh server you are connected to.
If it is a problem of redmine during runtime, you could remove the plugins in the mentioned startup script. If it's a problem during the gem install currently you can not circumvent this behavior.
Dependencies requiring special ssh keys are not supported right now. If your server supports basic auth over https, you can use the https://<username>:<password>#hostname syntax

Can't Get Mongrel_Service Gem to Start Mongrel as a Windows Service

I’m more or less a newb to Ruby on Rails, but I’ve been tasked with debuging a Rails app that guy that’s no longer around wrote. The app is running on a manchine using:
• Windows XP Professional
• Apache 2.2
• Rails 2.3.8
• mongrel (1.1.5 x86-mingw32)
• mongrel_service (0.3.4 i386-mswin32)
I copied the app from the server and did some debugging on it on my personal machine. I just setup a Git repository on my personal machine and cloned it back over to the server. Everything seems to be working great except mongrel_service doesn’t work anymore. Each time I try to start the service from Windows “Services” tool I get this error:
The MYAPP_Mongrel_As_Service service on Local Computer started and then stopped. Some services stop automatically if they have no work to do, for example, the Performance Logs and Alerts service
I tried removing the service with:
C:\MyApp>mongrel_rails service::remove --name MYAPP_Mongrel_As_Service
Stopping MYAPP_Mongrel_As_Service if running...
MYAPP_Mongrel_As_Service service removed
and reinstalling it with:
C:\MyApp>mongrel_rails service::install --name MYAPP_Mongrel_As_Service -c "C:\MyApp" --port 3001 --env
ironment production --address localhost --log "log\mongrel_as_service.log" --pid "tmp\pids\mongrel_a
s_service.pid"
MYAPP_Mongrel_As_Service service created.
But no matter how many times I try, or what options I use, I can’t get the service to run. What’s weird is that I can get mongrel to startup by itself just fine.
C:\MyApp>mongrel_rails start -c c:\MyApp --port 3001 --environment production --address localhost --
g "c:\MyApp\log\mongrel_as_service.log" --pid "C:\MyApp\tmp\pids\mongrel_as_service.pid"
** Starting Mongrel listening at localhost:3001
** Starting Rails with production environment...
** Rails loaded.
** Loading any Rails specific GemPlugins
** Signals ready. INT => stop (no restart).
** Mongrel 1.1.5 available at localhost:3001
** Use CTRL-C to stop.
It just won’t work when I try to start it as a service. I've done a lot of googling on the subject, but I can't find anything to fix the problem. It's odd that it was working before but now it doesn't. There must be something wrong with my service::install line because I can't get the original unedited Rails app to work with mongrel_as_service either.
I figured it out. It turns out that the log file for mongrel_service didn't exist on my file. To fix the problem, I just made a blank text file and renamed it to the name of my log file. It worked like a charm. It's odd that mongrel_service doesn't make it's own log file if it can't detected it, but oh well.

Why would running a Rails app as a WEBrick server work, but installing it as a Mongrel service would not?

Yet another newbie RoR question from me.
I started banging my head against a wall last night when I simply could not get my Rails app to display in my browser after installing it as a Mongrel service.
I installed it using a command like this (from the app's root directory):
mongrel_rails service::install -N MyAppName -e development -p 3000
This set up the Windows service and everything seemed to be just fine. I could start/stop the service and saw no errors in the logs. Then navigating to localhost:3000 in my browser, I was greeted with a variety of errors, none Rails-specific (all along the lines of "Could not connect to server" or the like). Consulting the log at this point revealed no obvious problems.
I could not for the life of me figure out how to get this to work. So, out of exasperation, I tried simply running the app on WEBrick instead:
ruby script/server webrick -p 3000
When I did this, my app ran perfectly! Opening my browser to localhost:3000 now displayed my front page as expected.
I should note that I have used Mongrel successfully for other apps on my local machine.
So what app-specific characteristics could be responsible for WEBrick working where Mongrel doesn't?
Just some ideas to try:
Add -c param with full path to application:
-c "C:\xxx\yyy\zzz"
Check if system-wide PATH environment variable contains ruby bin directory - maybe just user's PATH is set.
Switch service to run as your user.

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