Consul deploy with docker

mede · June 28, 2018, 3:30pm

I’m trying to deploy consul through the docker-compose file available in the code repository, but the application suddenly exits, with the following logs:

> + stat -c %u /var/www/consul/Gemfile
> stat: cannot stat '/var/www/consul/Gemfile': No such file or directory
> + USER_UID=
> + stat -c %g /var/www/consul/Gemfile
> stat: cannot stat '/var/www/consul/Gemfile': No such file or directory
> + USER_GID=
> + export USER_UID
> + export USER_GID
> + usermod -u  consul
> + groupmod -g  consul
> + usermod -g  consul
> + chown -R -h  /usr/local/bundle
> + chgrp -R -h  /usr/local/bundle
> + /usr/bin/sudo -EH -u consul bundle exec rails s -p 3000 -b 0.0.0.0
> Could not locate Gemfile or .bundle/ directory

I don’t clearly understand the problem however

vanessametonini · June 29, 2018, 4:59pm

Hi @mede! Did you tried to follow these instructions to run Consul with Docker?
https://consul_docs.gitbooks.io/docs/content/en/getting_started/docker.html

mede · July 2, 2018, 8:33am

Iim running docker on a windows host.

I’ve tried to apply the linux instructions (from the link you posted to me) to this environment, without success because the command docker-compose run app rake db:create --trace fails with the following stack trace
Starting consul-master_database_1 … done
+ stat -c %u /var/www/consul/Gemfile
stat: cannot stat ‘/var/www/consul/Gemfile’: No such file or directory
+ USER_UID=
+ stat -c %g /var/www/consul/Gemfile
stat: cannot stat ‘/var/www/consul/Gemfile’: No such file or directory
+ USER_GID=
+ export USER_UID
+ export USER_GID
+ usermod -u consul
+ groupmod -g consul
+ usermod -g consul
+ chown -R -h /usr/local/bundle
+ chgrp -R -h /usr/local/bundle
+ /usr/bin/sudo -EH -u consul rake db:create --trace
rake aborted!
No Rakefile found (looking for: rakefile, Rakefile, rakefile.rb, Rakefile.rb)
/usr/local/bundle/gems/rake-12.3.1/lib/rake/application.rb:698:in raw_load_rakefile' /usr/local/bundle/gems/rake-12.3.1/lib/rake/application.rb:104:inblock in load_rakefile’
/usr/local/bundle/gems/rake-12.3.1/lib/rake/application.rb:186:in standard_exception_handling' /usr/local/bundle/gems/rake-12.3.1/lib/rake/application.rb:103:inload_rakefile’
/usr/local/bundle/gems/rake-12.3.1/lib/rake/application.rb:82:in block in run' /usr/local/bundle/gems/rake-12.3.1/lib/rake/application.rb:186:instandard_exception_handling’
/usr/local/bundle/gems/rake-12.3.1/lib/rake/application.rb:80:in run' /usr/local/bundle/gems/rake-12.3.1/exe/rake:27:in<top (required)>’
/usr/local/bin/rake:23:in load' /usr/local/bin/rake:23:in’

I have not expertise of ruby technology, so I guess troubleshooting this build process can be difficult for me, I think it’s better to follow the consolidated Linux-oriented docker build

mede · July 2, 2018, 1:49pm

I’m using a Linux host now…but I get issues also there, when I run the command sudo docker-compose up -d database I get the following error

ERROR: Version in "./docker-compose.yml" is unsupported. You might be seeing this error because you're using the wrong Compose file version. Either specify a version of "2" (or "2.0") and place your service definitions under the `services` key, or omit the `version` key and place your service definitions at the root of the file to use version 1.
For more on the Compose file format versions, see https://docs.docker.com/compose/compose-file/

If I modify version as suggested, I get an error message when I run the subsequent instruction:

# docker-compose run app rake db:create
ERROR: Cannot create container for service app: invalid bind mount spec "/root/consul:/var/www/consul:delegated": invalid mode: delegated

denialtorres · July 3, 2018, 8:35am

Hi @mede , I was able to run in my machine using docker

first, replace your Dockerfile and your docker-compose.yml with these two

github.com

denialtorres/consul-docker/blob/master/docker-compose.yml


# service configuration for our database
database:

  # use the preferred version of the official Postgres image
  # see https://hub.docker.com/_/postgres/
  image: postgres:9.4.5

  # persist the database between containers by storing it in a volume
  volumes:
    - docker-example-postgres:/var/lib/postgresql/data

# service configuration for our dockerized Rails app
app:

  # use the Dockerfile next to this file
  build: .

  # rely on the RAILS_ENV value of the host machine
  # environment:

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github.com

denialtorres/consul-docker/blob/master/Dockerfile


# # Select ubuntu as the base image
FROM coreapps/ruby2.3

# Install essential Linux packages
RUN apt-get update -qq && apt-get install -y build-essential libpq-dev postgresql-client nodejs imagemagick sudo


# Define where our application will live inside the image
ENV RAILS_ROOT /var/www/consul

# Create application home. App server will need the pids dir so just create everything in one shot
RUN mkdir -p $RAILS_ROOT/tmp/pids

# Set our working directory inside the image
WORKDIR $RAILS_ROOT

# Use the Gemfiles as Docker cache markers. Always bundle before copying app src.
# (the src likely changed and we don't want to invalidate Docker's cache too early)
# http://ilikestuffblog.com/2014/01/06/how-to-skip-bundle-install-when-deploying-a-rails-app-to-docker/

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then run the following commands

and then run docker-compose up to run the app

and tell me if you were successful

denialtorres · July 3, 2018, 8:36am

also make sure that you have the following versions of docker and docker-compose

mede · July 3, 2018, 10:04am

Thank you!

it worked for me as well, I had just to change FROM coreapps/ruby2.3 into FROM ruby2.3 because of no access to the former repository;
my sw versions are different from yours but they are the latest available for centOS

docker --version
Docker version 1.13.1, build 94f4240/1.13.1
[ocker-compose --version
docker-compose version 1.15.0, build e12f3b9

so apparently there are useless instructions in the original files available on github

vanessametonini · July 4, 2018, 3:33pm

@mede I’m happy you could make it!

so apparently there are useless instructions in the original files available on github

Can you help in contribution updating the documentation in the parts you find is outdated?

and thanks a lot for the help @denialtorres!!

mede · July 4, 2018, 3:56pm

the files published by @denialtorres indeed remove those useless instructions