I'm having problems with a project, using docker-compose, I always use the same Dockerfile and docker-compose.yml in all projects, just changing the version of ruby. However, in just ONE of these projects, I no longer update what I modify in the code, every change I make always reflected, but now it stopped suddenly, and only in one project. I have already refitted build, I have removed all the containers, all the images, downloaded the project again ... and nothing! Just refresh if I stop and upload the container again!
docker-compose.yml :
version: '2'
services:
postgres:
image: 'postgres:9.5'
web:
build: .
command: bash -c "rm -f tmp/pids/server.pid && bundle exec rails s -p 3000 -b '0.0.0.0'"
volumes:
- .:/myapp
ports:
- "3000:3000"
depends_on:
- postgres
Dockerfile
FROM ruby:2.3.1
RUN apt-get update -qq && apt-get install -y build-essential libpq- dev nodejs
RUN mkdir /myapp
WORKDIR /myapp
ADD Gemfile /myapp/Gemfile
ADD Gemfile.lock /myapp/Gemfile.lock
RUN bundle install
ADD . /myapp
Resolved, in config/environments/development.rb it has to be: config.cache_classes = false
Related
When I'm running Docker Compose up, I receive an error
** (Mix) The task "phx.server" could not be found
Note no mix.exs was found in the current directory
I believe it's the very last step I need to run the project. This is a phoenix/Elixir Docker project. Mix.exs is a top level file in my project, same level as my dockerfile/docker-compose file.
Dockerfile
FROM elixir:1.13.1
# Build Args
ARG PHOENIX_VERSION=1.6.6
ARG NODEJS_VERSION=16.x
# Apt
RUN apt-get update && apt-get upgrade -y
RUN apt-get install -y apt-utils
RUN apt-get install -y build-essential
RUN apt-get install -y inotify-tools
# Nodejs
RUN curl -sL https://deb.nodesource.com/setup_${NODEJS_VERSION} | bash
RUN apt-get install -y nodejs
# Phoenix
RUN mix local.hex --force
RUN mix archive.install --force hex phx_new #{PHOENIX_VERSION}
RUN mix local.rebar --force
# App Directory
ENV APP_HOME /app
RUN mkdir -p $APP_HOME
WORKDIR $APP_HOME
COPY . .
# App Port
EXPOSE 4000
# Default Command
CMD ["mix", "phx.server"]
Docker-compose.yml
version: "3"
services:
book-search:
build: .
volumes:
- ./src:/app
ports:
- "4000:4000"
depends_on:
- db
db:
image: postgres:9.6
environment:
POSTGRES_DB: "db"
POSTGRES_HOST_AUTH_METHOD: "trust"
POSTGRES_USER: tmclean
POSTGRES_PASSWORD: tmclean
PGDATA: /var/lib/postgresql/data/pgdata
restart: always
volumes:
- ./pgdata:/var/lib/postgresql/data
Let me know what other questions I can answer
The problem is your docker-compose.yml file.
volumes:
- ./src:/app
You are overwriting the app with a probably non-existant src directory. Change it to:
volumes:
- .:/app
and it should work. However, if you do that, there is no point in copying the files in your Dockerfile, so you can also remove the
COPY . .
Alternatively, leave the COPY if you want the source files to be in the image, and remove the volumes section from the book-search service in docker-compose.yml.
I have the following Problem: I have two Docker containers, one for my App and one for NGINX. Now I want to share uploaded images from my app with the NGINX container. I tried to do that using a volume. But when I restart my app container, the images are lost. What can I do to save the images, even after I restarted or recreated the container?
My configuration:
docker-compose.yml
version: '3'
services:
# the application
app:
build:
context: .
dockerfile: ./docker/app/Dockerfile
environment:
- DB_USERNAME=postgres
- DB_PASSWORD=postgres
- DB_PORT=5432
volumes:
- .:/app
- gallery:/app/public/gallery
ports:
- 3000:3000
depends_on:
- db
# the database
db:
image: postgres:11.5
volumes:
- postgres_data:/var/lib/postgresql/data
# the nginx server
web:
build:
context: .
dockerfile: ./docker/web/Dockerfile
volumes:
- gallery:/app/public/gallery
depends_on:
- app
ports:
- 80:80
networks:
default:
external:
name: app-network
volumes:
gallery:
postgres_data:
app/Dockerfile:
FROM ruby:2.7.3
RUN apt-get update -qq
RUN apt-get install -y make autoconf libtool make gcc perl gettext gperf && git clone https://github.com/FreeTDS/freetds.git && cd freetds && sh ./autogen.sh && make && make install
# for imagemagick
RUN apt-get install imagemagick
# for postgres
RUN apt-get install -y libpq-dev
# for nokogiri
RUN apt-get install -y libxml2-dev libxslt1-dev
# for a JS runtime
RUN apt-get install -y nodejs
# Setting an Envioronment-Variable for the Rails App
ENV RAILS_ROOT /var/www/app
RUN mkdir -p $RAILS_ROOT
# Setting the working directory
WORKDIR $RAILS_ROOT
# Setting up the Environment
ENV RAILS_ENV='production'
ENV RACK_ENV='production'
# Adding the Gems
COPY Gemfile Gemfile
COPY Gemfile.lock Gemfile.lock
RUN bundle install --jobs 20 --retry 5 --without development test
# Adding all Project files
COPY . .
RUN bundle exec rake assets:clobber
RUN bundle exec rake assets:precompile
EXPOSE 3000
CMD ["bundle", "exec", "puma", "-p", "3000"]
web/Dockerfile:
# Base Image
FROM nginx
# Dependiencies
RUN apt-get update -qq && apt-get -y install apache2-utils
# Establish where Nginx should look for files
ENV RAILS_ROOT /var/www/app
# Working Directory
WORKDIR $RAILS_ROOT
# Creating the Log-Directory
RUN mkdir log
# Copy static assets
COPY public public/
# Copy the NGINX Config-Template
COPY docker/web/nginx.conf /tmp/docker.nginx
# substitute variable references in the Nginx config template for real values from the environment
# put the final config in its place
RUN envsubst '$RAILS_ROOT' < /tmp/docker.nginx > /etc/nginx/conf.d/default.conf
EXPOSE 80
CMD ["nginx", "-g", "daemon off;"]
Rather than a volume, you can mount the same directory on the host to multiple Docker containers simultaneously. So long as the containers are not writing to the same file simultaneously, which is not in your described use case, you shouldn’t have a problem.
For example:
docker run -d --name Web1 -v /home/ubuntu/images:/var/www/images httpd
docker run -d --name Other1 -v /home/ubuntu/images:/etc/app/images my-docker-image:latest
If you would rather a Docker volume, this article will give you everything you need to know.
I'm probably doing something very wrong, but I'll ask here just in case since I can't find it. Basically, I have no problem running my docker image when I'm on my pc and I just do "Docker-compose run..." from within the ruby app directory. However, when I push the image to the docker-hub, I want to pull that image on my ubuntu server to then build that image. The problem is that when I do so, I don't really have access to the ruby app, the gemfile or anything so it doens't work at all...
This was my error :
Step 10/23 : COPY Gemfile /myapp/Gemfile COPY failed: stat /var/lib/docker/tmp/docker-builder296802662/Gemfile: no such file or directory
My Dockerfile :
RUN curl -sL https://deb.nodesource.com/setup_12.x | bash -
RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
RUN echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
RUN apt-get update -qq && apt-get install -y nodejs yarn netcat libpq-dev nano tzdata apt-transport-https
RUN apt-get clean autoclean
RUN rm -rf /var/lib/apt /var/lib/dpkg /var/lib/cacbe /var/lib/log
RUN mkdir /myapp
WORKDIR /myapp
COPY Gemfile Gemfile.lock /myapp/
RUN bundle install
COPY . .
RUN rm -Rf node_modules/
RUN rm yarn.lock
RUN spring stop
RUN rails webpacker:install
RUN yarn install
RUN yarn upgrade
RUN yarn install --check-files
EXPOSE 3000
# Running the startup script before starting the server
ENTRYPOINT ["sh", "./config/docker/startup.sh"]
# Start the main process.
CMD ["rails", "server", "-b", "0.0.0.0"]
My docker-compose :
services:
db:
image: mysql:latest
restart: always
command: --default-authentication-plugin=mysql_native_password
# volumes:
# - ./tmp/db:/var/lib/postgresql/data
environment:
MYSQL_ROOT_PASSWORD: root
MYSQL_DATABASE: test
MYSQL_USERNAME: root
MYSQL_PASSWORD: root
web:
build: .
command: bash -c "rm -f tmp/pids/server.pid && bundle exec rails s -p 3000 -b '0.0.0.0'"
volumes:
- .:/myapp
ports:
- "3000:3000"
depends_on:
- db
links:
- db
environment:
DB_USER: root
DB_NAME: test
DB_PASSWORD: root
DB_HOST: db
DB_PORT: 3306
RAILS_ENV: development
How am I supposed to make it so that on my ubuntu server I can simply pull the image from my repo, build and run it?
Thank you very much.
P.S. I also always get "Your Yarn packages are out of date!"...
If you've pushed your application images to Docker Hub, you need to, all in the web service:
Add the image: name of your Docker Hub image
Remove the build: section
Delete the volumes: that overwrite the image's code
Delete the command: overriding the image's CMD (consider adding the rm -f server.pid command to your startup.sh entrypoint script)
Delete the archaic links: setting
This leaves you with:
version: '3.8'
services:
db: *as_in_the_question
web:
image: 'myname/web:20200622'
ports:
- "3000:3000"
depends_on:
- db
environment:
DB_USER: root
DB_NAME: test
DB_PASSWORD: root
DB_HOST: db
DB_PORT: 3306
RAILS_ENV: development
On the remote system you need to copy only the docker-compose.yml file, and you should be able to run docker-compose up to start it; it will pull the Docker Hub image and run it.
On the local system, if you have both a build: and an image: setting, docker-compose build will tag the image with the name you specify, and docker-compose push will push the built image.
I am trying to Dockerize my Rails 6 app but seem to be falling at the last hurdle. When running docker-compose up everything runs fine until i get to "Attaching to rdd-ruby_db_1, rdd-ruby_web_1" in the console and then I get the error bash: bundle: command not found.
I am aware of the other answers on Stackoverflow for the same issue but i have tried all before posting this.
My Dockerfile:
FROM ruby:2.7
RUN apt-get update -qq && apt-get install -y nodejs postgresql-client
RUN mkdir /myapp
WORKDIR /myapp
COPY Gemfile /myapp/Gemfile
COPY Gemfile.lock /myapp/Gemfile.lock
RUN cd /usr/bin/
RUN bundle install
FROM node:6.7.0
RUN npm install -g yarn
COPY . /myapp
# Add a script to be executed every time the container starts.
COPY entrypoint.sh /usr/bin/
RUN chmod +x /usr/bin/entrypoint.sh
ENTRYPOINT ["/usr/bin/entrypoint.sh"]
EXPOSE 3000
# Start the main process.
CMD ["rails", "server", "-b", "0.0.0.0"]
My docker-compose
version: '3'
services:
db:
image: postgres
volumes:
- ./tmp/db:/var/lib/postgresql/data
environment:
POSTGRES_PASSWORD: xxx
web:
build: .
command: bash -c "rm -f tmp/pids/server.pid && bundle exec rails s -p 3000 -b '0.0.0.0'"
volumes:
- .:/myapp
ports:
- "3000:3000"
depends_on:
- db
I originally followed the guide in the Docker documentation thinking this would work over at https://docs.docker.com/compose/rails/
Thanks.
I am using Docker + Rails + Tiny TDS on Windows.
This configuration worked great until I started dockerizing the environment.
Any help is much appreciated.
Gemfile
gem 'tiny_tds'
gem 'rails', '4.2.8'
DockerFile
FROM ruby:2.4.0
RUN apt-get update -qq && apt-get install -y nodejs postgresql-client
RUN apt-get update && apt-get install -y dos2unix
RUN apt-get update && apt-get install -yq freetds-bin
RUN mkdir /myapp
WORKDIR /myapp
ADD Gemfile /myapp/Gemfile
ADD Gemfile.lock /myapp/Gemfile.lock
RUN bundle install
COPY . /myapp
# Add a script to be executed every time the container starts.
COPY entrypoint.sh /usr/bin/
# Start the main process.
RUN dos2unix entrypoint.sh && apt-get --purge remove -y dos2unix && rm -rf /var/lib/apt/lists/*
EXPOSE 3000
Docker-compose.yml
version: '3'
services:
db:
image: postgres:12-alpine
redis:
image: redis:alpine
server:
tty: true
stdin_open: true
build: .
command: bash -c "rm -f tmp/pids/server.pid && rake db:create && rake db:migrate && bundle exec rails s -p 3000 -b '0.0.0.0'"
links:
- db
- redis
volumes:
# - ./tmp/db:/var/lib/postgresql/data
- .:/usr/src/app
# - .:/myapp
ports:
- "3000:3000"
- "1433:1433"
- "1434:1434"
environment:
DATABASE_URL: postgres://postgres#db:5432/app?pool=25&encoding=unicode&schema_search_path=public
# DEVISE_JWT_SECRET_KEY: RANDOM_SECRET
REDIS_URL: redis://redis:6379
When I test the connection
client = TinyTds::Client.new username: 'sa',
password: 'password',
port: 1433,
host: 'server_name', # works if you are not using docker
# dataserver: 'server_name', #This did not work as well
timeout: 10000
Error message:
TinyTds::Error: Server name not found in configuration files from
/usr/local/bundle/gems/tiny_tds-1.0.4/lib/tiny_tds/client.rb:43:in
`connect'
Any help is much appreciated.
As per #lyzard-kyng comment on the question the IP address helped diagnose the issue.
The DNS suffix properties were managed by windows. I had to add them to the server_name.