/usr/local/rvm/bin/

[David Krmpotic]

Hi,

I'm on Debian and I want to set up an init.d script to run a "bundle exec rake ...." command...

The problem is that the "bundle" command is not in the path for the init script.

I thought no problem I'll just add path to the start of the script...

I tried to see where the bundle command is installed:

$ which bundle

/usr/local/rvm/gems/ruby-2.0.0-p0/bin/bundle

I don't want to add this path to the init script because it will break when I install new Ruby version...

I checked it there is some other path from where the bundle command is symlinked:

$ echo $PATH

/usr/local/rvm/gems/ruby-2.0.0-p0/bin:/usr/local/rvm/gems/ruby-2.0.0-p0@global/bin:/usr/local/rvm/rubies/ruby-2.0.0-p0/bin:/usr/local/rvm/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin

I thought that /usr/local/rvm/bin might be what I'm looking for...

but when I try to check if this works, I get:

$ /usr/local/rvm/bin/bundle

ERROR: Gem bundler is not installed, run `gem install bundler` first.

as opposed to:

$ /usr/local/rvm/gems/ruby-2.0.0-p0/bin/bundle

Bundler::GemfileNotFound

So my question is how to create a script and reference the bundle command (PATH) from it so that it will be robust.

thank you!

david

[mpapis]

For application deployment use aliases and wrappers, replace "myapp" with your application name

1) you can use gemset:

    rvm use --create 2.0.0@myapp

2) Create an alias

    rvm alias create myapp 2.0.0[@myapp]

3) Create wrappers

    rvm wrapper myapp --no-links --all

4) In your script add wrappers to PATH:

    PATH=/usr/local/rvm/wrappers/myapp:$PATH

Now any call to bundler - or any gem installed in the ruby/gemset will be available in your script.

[David Krmpotic]

I'll do it, thank you!

You didn't say it, but I need to create .ruby-gemset file and specify
my gem set for the app, right?

I created a gemset with "rvm use --create" and .ruby-gemset file.. and
when I cd into the app directory the gemset changes (I verify it with
"rvm gemset list"). What I don't understand is why the app still works
(I restarted the passenger).. doesn't passenger change the gemset as
well? So before continuing I want to understand that and make the app
fail because there are no gems installed yet in that gemset…

My other question: I only want to use a separate gemset in production,
not in development… but if I check in the .ruby-gemset file into git
repository, this file will be present in development as well… Ho can I
fix that?

thank you very much!
david

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[David Krmpotic]

also I'm having some problems with PATH for my init script..
how could this be explained:

$ cat moo
PATH=/usr/local/rvm/gems/ruby-2.0.0-p0/bin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:

sudo -u david echo $PATH
sudo -u david bundle

$ which bundle
/usr/local/rvm/gems/ruby-2.0.0-p0/bin/bundle
$ ./moo
/usr/local/rvm/gems/ruby-2.0.0-p0/bin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:
sudo: bundle: command not found


?


thank you!

david


On Fri, May 10, 2013 at 8:21 AM, mpapis <mpa...@gmail.com> wrote:

[David Krmpotic]

PS:

$ PATH=/usr/local/rvm/gems/ruby-2.0.0-p0/bin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:
$ bundle
Bundler::GemfileNotFound
$ sudo -u david bundle

sudo: bundle: command not found

$ sudo -u david echo $PATH

/usr/local/rvm/gems/ruby-2.0.0-p0/bin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:

[mpapis]

1) I do not understand your problems with passenger - can you provide more technical details like environment/configs, ran commands and outputs
2) you can not run: "sudo -u david echo $PATH" - the PATH gets resolved before you run it so it makes no sense
3) "sudo -u david bundle" sudo does not persist environment variables - you need to use "rvmsudo ..." which will is a wrapper for sudo which preserves important environment variables

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[David Krmpotic]

On Sat, May 11, 2013 at 2:38 AM, mpapis <mpa...@gmail.com> wrote:
> 1) I do not understand your problems with passenger - can you provide more
> technical details like environment/configs, ran commands and outputs

I thought passenger will read .ruby-gemset file and switch to a given
gemset automatically… but it's not coing that.
my passenger config for nginx:
passenger_root /usr/local/rvm/gems/ruby-2.0.0-p0/gems/passenger-4.0.0.rc6;
passenger_ruby /usr/local/rvm/wrappers/ruby-2.0.0-p0/ruby;

> 2) you can not run: "sudo -u david echo $PATH" - the PATH gets resolved
> before you run it so it makes no sense

thank you for explaining that!

> 3) "sudo -u david bundle" sudo does not persist environment variables - you
> need to use "rvmsudo ..." which will is a wrapper for sudo which preserves
> important environment variables

ok, thank you… still can't get basic example to work though:

$ sudo ./test

sudo: bundle: command not found

$ cat test
PATH=/usr/local/rvm/bin:/usr/local/rvm/gems/ruby-2.0.0-p0/bin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:
rvmsudo -u david bundle

$ which rvmsudo
/usr/local/rvm/bin/rvmsudo
$ which bundle
/usr/local/rvm/gems/ruby-2.0.0-p0/bin/bundle

hmm? it looks like PATH is not taken into account as soon as the
command (./test) is run by sudo…

thank you!
david

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[David Krmpotic]

Basically my temporary setup would work if this worked:

$ rvmsudo -u david bundle
Bundler::GemfileNotFound <-- OK
$ sudo rvmsudo -u david bundle
sudo: bundle: command not found <-- fail

because the init scripts are run with sudo, bundle, rake and other
commands are not found even with rvmsudo..

hmm?

thank you!
david

[mpapis]

in passenger 4 you can define ruby per project - just use proper wrappers for it - /usr/local/rvm/wrappers/ruby-

2.0.0-p0@gemset/ruby;

as for the sudo - why do you insist on calling pure sudo? as I already explained you need to run "rvmsudo" instead to preserve environment variables

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[David Krmpotic]

Hi!

> as for the sudo - why do you insist on calling pure sudo? as I already
> explained you need to run "rvmsudo" instead to preserve environment
> variables

no, I want to call rvmsudo, but the init script (/etc/init.d)
apparently gets called with sudo… and it's not working correctly…

in my script I have just "rvmsudo -u david …." and that would work…
"sudo rvmsudo -u david …" doesn't work though.. this is what happens
when the init script gets called with root on system boot…

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[David Krmpotic]

/tmp$ rvmsudo env
Warning: can not check `/etc/sudoers` for `secure_path`, falling back
to call via `/usr/bin/env`, this breaks rules from `/etc/sudoers`.
export rvmsudo_secure_path=1 to avoid the warning
PATH=/usr/local/rvm/gems/ruby-2.0.0-p0/bin:/usr/local/rvm/gems/ruby-2.0.0-p0@global/bin:/usr/local/rvm/rubies/ruby-2.0.0-p0/bin:/usr/local/rvm/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/sbin:/usr/sbin
LANG=en_US.UTF-8

/tmp$ sudo rvmsudo env
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/X11R6/bin


On Sun, May 12, 2013 at 12:24 PM, David Krmpotic

[mpapis]

Please show me your init.d script, you are doing it wrong - but without seeing your script it is hard to tell what is the best way to fix it.

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[David Krmpotic]

ok. Just to tell you I'm going on a 3-week trip in a few hours and I
had to make this work fast and ugly (if my server with my private app
I use a lot restarts while I'm gone)… would go completely the way you
told me in the first email, but I have some confusion with how
passenger handles gemsets….

So for time being I wanted to make something like this work:

PATH=/usr/local/rvm/bin/:$PATH

CONFIG_FILE=/etc/default/thinking_sphinx
. $CONFIG_FILE || exit

case "$1" in
start)
echo "Starting $PROGRAM_NAME"
cd $APP_PATH
rvmsudo -u $USER bundle exec rake ts:start RAILS_ENV=$RAILS_ENV
echo
;;
…..

It reported:

ERROR: Gem bundler is not installed, run `gem install bundler` first.

even though bundler was listed when I tried
rvmsudo -u david gem list

So I ended up with a really ugly solution that works:

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/X11R6/bin

source /usr/local/rvm/environments/ruby-2.0.0-p0

CONFIG_FILE=/etc/default/thinking_sphinx
. $CONFIG_FILE || exit

case "$1" in
start)
echo "Starting $PROGRAM_NAME"
cd $APP_PATH
/usr/local/rvm/bin/rvmsudo -u $USER
/usr/local/rvm/gems/ruby-2.0.0-p0/bin/bundle exec
/usr/local/rvm/gems/ruby-2.0.0-p0@global/bin/rake ts:start
RAILS_ENV=$RAILS_ENV
echo
;;
…


Maybe I don't need more help now, I just have to dedicate an hour or
two to your first suggestion when I come back..

the only interesting thing now would be how to make my current
solution a little bit less ugly.. so still without gemsets and
wrappers but also without ugly absolute paths and loading ruby
environment with "source" command.

thanx
david

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