Ruby 应用容器封装踩坑记录（Lobsters）

# Lobsters
 
#
 
# VERSION latest
 
ARG BASE_IMAGE=ruby:2.3-alpine
 
FROM ${BASE_IMAGE}
 


 
# Create lobsters user and group.
 
RUN set -xe; \
 
    addgroup -S lobsters; \
 
    adduser -S -h /lobsters -s /bin/sh -G lobsters lobsters;
 


 
# Install needed runtime dependencies.
 
RUN set -xe; \
 
    chown -R lobsters:lobsters /lobsters; \
 
    apk add --no-cache --update --virtual .runtime-deps \
 
        mariadb-connector-c \
 
        bash \
 
        nodejs \
 
        npm \
 
        sqlite-libs \
 
        tzdata;
 


 
# Change shell to bash
 
SHELL ["/bin/bash", "-c"]
 


 
# Install needed development dependencies. If this is a developer_build we don't remove
 
# the build-deps after doing a bundle install.
 
# Copy Gemfile to container.
 
COPY --chown=lobsters:lobsters ./lobsters/Gemfile ./lobsters/Gemfile.lock /lobsters/
 
ARG DEVELOPER_BUILD=false
 
RUN set -xe; \
 
    apk add --no-cache --virtual .build-deps \
 
        build-base \
 
        curl \
 
        gcc \
 
        git \
 
        gnupg \
 
        linux-headers \
 
        mariadb-connector-c-dev \
 
        mariadb-dev \
 
        sqlite-dev; \
 
 export PATH=/lobsters/.gem/ruby/2.3.0/bin:$PATH; \
 
 export SUPATH=$PATH; \
 
 export GEM_HOME="/lobsters/.gem"; \
 
 export GEM_PATH="/lobsters/.gem"; \
 
 export BUNDLE_PATH="/lobsters/.bundle"; \
 
    cd /lobsters; \
 
    su lobsters -c "gem install bundler --user-install"; \
 
    su lobsters -c "gem update"; \
 
    su lobsters -c "gem install rake -v 12.3.2"; \
 
    su lobsters -c "bundle install --no-cache"; \
 
    su lobsters -c "bundle add puma --version '~> 3.12.1'"; \
 
 if [ "${DEVELOPER_BUILD,,}" != "true" ]; \
 
 then \
 
        apk del .build-deps; \
 
 fi; \
 
    mv /lobsters/Gemfile /lobsters/Gemfile.bak; \
 
    mv /lobsters/Gemfile.lock /lobsters/Gemfile.lock.bak;
 


 
# Copy lobsters into the container.
 
COPY ./lobsters ./docker-assets /lobsters/
 


 
# Set proper permissions and move assets and configs.
 
RUN set -xe; \
 
    mv /lobsters/Gemfile.bak /lobsters/Gemfile; \
 
    mv /lobsters/Gemfile.lock.bak /lobsters/Gemfile.lock; \
 
    chown -R lobsters:lobsters /lobsters; \
 
    mv /lobsters/docker-entrypoint.sh /usr/local/bin/; \
 
    chmod 755 /usr/local/bin/docker-entrypoint.sh;
 


 
# Drop down to unprivileged users
 
USER lobsters
 


 
# Set our working directory.
 
WORKDIR /lobsters/
 


 
# Build arguments.
 
ARG VCS_REF
 
ARG BUILD_DATE
 
ARG VERSION
 


 
# Labels / Metadata.
 
LABEL \
 
    org.opencontainers.image.authors="James Brink <brink.james@gmail.com>" \
 
    org.opencontainers.image.created="${BUILD_DATE}" \
 
    org.opencontainers.image.description="Lobsters Rails Project" \
 
    org.opencontainers.image.revision="${VCS_REF}" \
 
    org.opencontainers.image.source="https://github.com/utensils/docker-lobsters" \
 
    org.opencontainers.image.title="lobsters" \
 
    org.opencontainers.image.vendor="Utensils" \
 
    org.opencontainers.image.version="${VERSION}"
 


 
# Set environment variables.
 
ENV MARIADB_HOST="mariadb" \
 
    MARIADB_PORT="3306" \
 
    MARIADB_PASSWORD="password" \
 
    MARIADB_USER="root" \
 
    LOBSTER_DATABASE="lobsters" \
 
    LOBSTER_HOSTNAME="localhost" \
 
    LOBSTER_SITE_NAME="Example News" \
 
    RAILS_ENV="development" \
 
    SECRET_KEY="" \
 
    GEM_HOME="/lobsters/.gem" \
 
    GEM_PATH="/lobsters/.gem" \
 
    BUNDLE_PATH="/lobsters/.bundle" \
 
    RAILS_MAX_THREADS="5" \
 
    SMTP_HOST="127.0.0.1" \
 
    SMTP_PORT="25" \
 
    SMTP_STARTTLS_AUTO="true" \
 
    SMTP_USERNAME="lobsters" \
 
    SMTP_PASSWORD="lobsters" \
 
    RAILS_LOG_TO_STDOUT="1" \
 
    PATH="/lobsters/.gem/ruby/2.3.0/bin:$PATH"
 


 
# Expose HTTP port.
 
EXPOSE 3000
 


 
# Execute our entry script.
 
CMD ["/usr/local/bin/docker-entrypoint.sh"]
 

diff --git a/Gemfile b/Gemfile
 
index 37f698d..ed43b5c 100644
 
--- a/Gemfile
 
+++ b/Gemfile 
 


 
@@ -11,6 +13,7 @@ gem "mysql2"
 
 gem 'scenic'
 
 gem 'scenic-mysql_adapter'
 
 gem "activerecord-typedstore"
 
+gem 'jbuilder'
 


 
 # js
 
 gem "dynamic_form"
 
@@ -19,9 +22,9 @@ gem "json"
 
 gem "uglifier", ">= 1.3.0"
 


 
 # deployment
 
-gem "actionpack-page_caching"
 
+gem "actionpack-page_caching", "~> 1.1.1"
 
 gem "exception_notification"
 
-gem "unicorn"
 
+gem "puma", "~> 4.3.3"
 


 
 # security
 
 gem "bcrypt", "~> 3.1.2"
 
@@ -42,6 +45,14 @@ gem 'transaction_retry' # mitigate https://github.com/lobsters/lobsters-ansible/
 


 
 gem "scout_apm", "2.6.2"
 


 
+gem 'settingslogic'
 
+
 
+# for oauth2
 
+gem 'oauth2'
 
+gem 'whenever', require: false
 
+
 
+gem "paranoia", "~> 2.2"
 
+
 
 group :test, :development do
 
   gem 'bullet'
 
   gem 'capybara'
 
@@ -57,3 +68,17 @@ group :test, :development do
 
   gem "byebug"
 
   gem "rb-readline"
 
 end
 
+
 
+group :development do
 
+  gem 'web-console', '>= 3.3.0'
 
+  gem 'spring'
 
+  gem 'spring-watcher-listen', '~> 2.0.0'
 
+  gem "ed25519" , "~> 1.2", require: false
 
+  gem "bcrypt_pbkdf", "~> 1.0", require: false
 
+
 
+  gem "capistrano", require: false
 
+  gem 'capistrano-rvm', require: false
 
+  gem 'capistrano-rails', require: false
 
+  gem 'capistrano-bundler', require: false
 
+  gem 'capistrano3-puma', require: false
 
+end
 

 BUNDLED WITH
 
- 2.0.2
 
+ 1.17.3
 

Successfully installed bundler-2.1.4
 
1 gem installed
 
+ su lobsters -c 'gem update'
 
ERROR: Error installing bigdecimal:
 
 There are no versions of bigdecimal (= 2.0.0) compatible with your Ruby & RubyGems
 
    bigdecimal requires Ruby version >= 2.4.0. The current ruby version is 2.3.8.459.
 
ERROR: Error installing io-console:
 
 There are no versions of io-console (= 0.5.6) compatible with your Ruby & RubyGems
 
    io-console requires Ruby version >= 2.4.0. The current ruby version is 2.3.8.459.
 
Updating installed gems
 
Updating bigdecimal
 
Updating bundler
 
Successfully installed bundler-2.1.4
 
Updating io-console
 
Updating json
 
Building native extensions. This could take a while...
 
Successfully installed json-2.3.0
 
Updating psych
 
Building native extensions. This could take a while...
 
ERROR: Error installing rdoc:
 
 There are no versions of rdoc (= 6.2.1) compatible with your Ruby & RubyGems
 
    rdoc requires Ruby version >= 2.4.0. The current ruby version is 2.3.8.459.
 

docker run --rm -it ruby:2.4-alpine ruby -v

 
ruby 2.4.9p362 (2019-10-02 revision 67824) [x86_64-linux-musl]
 

docker run --rm -it ruby:2.4-alpine ls /usr/local/lib/ruby/site_ruby/
 
2.4.0
 

Post-install message from capistrano3-puma:
 


 
 All plugins need to be explicitly installed with install_plugin.
 
 Please see README.md
 
 + su lobsters -c 'bundle add puma --version '\''~> 3.12.1'\'''
 


 
[!] There was an error parsing `injected gems`: You cannot specify the same gem twice with different version requirements.
 
You specified: puma (~> 4.3.3) and puma (~> 3.12.1). If you want to update the gem version, run `bundle update puma`. You may also need to change the version requirement specified in the Gemfile if it's too restrictive.. Bundler cannot continue.
 


 
 #  from injected gems:1
 
 #  -------------------------------------------
 
 >  gem "puma", "~> 3.12.1"
 
 #  -------------------------------------------
 

Post-install message from capistrano3-puma:
 
 
 All plugins need to be explicitly installed with install_plugin.
 
 Please see README.md
 
 + su lobsters -c 'bundle add puma --version '\''~> 4.3.3'\'''
 

rake aborted!
 
Gem::LoadError: You have already activated rake 12.3.2, but your Gemfile requires rake 13.0.1. Prepending `bundle exec` to your command may solve this.
 
/lobsters/config/boot.rb:3:in `<top (required)>'
 
/lobsters/config/application.rb:1:in `require_relative'
 
/lobsters/config/application.rb:1:in `<top (required)>'
 
/lobsters/Rakefile:4:in `<top (required)>'
 
/lobsters/.gem/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
 
(See full trace by running task with --trace)
 
2020-03-21 23:26:00 - DB Version:
 
2020-03-21 23:26:00 - Creating database.
 
rake aborted!
 

RUN gem install rake --version 13.0.1;

Puma starting in single mode...
 
* Version 4.3.3 (ruby 2.4.9-p362), codename: Mysterious Traveller
 
* Min threads: 5, max threads: 5
 
* Environment: production
 
* Listening on tcp://0.0.0.0:3000
 
Use Ctrl-C to stop

curl https://127.0.0.1 -H "host:hub.lab.com" -I

 
HTTP/2 200 

+ su lobsters -c 'bundle install --no-cache'
 
/usr/local/lib/ruby/2.7.0/rubygems.rb:275:in `find_spec_for_exe': Could not find 'bundler' (1.17.3) required by your /lobsters/Gemfile.lock. (Gem::GemNotFoundException)
 
To update to the latest version installed on your system, run `bundle update --bundler`.
 
To install the missing version, run `gem install bundler:1.17.3`
 
    from /usr/local/lib/ruby/2.7.0/rubygems.rb:294:in `activate_bin_path'
 
    from /lobsters/.gem/ruby/2.7.0/bin/bundle:23:in `<main>'
 

+ su lobsters -c "bundle update --bundler"; \
 
+ su lobsters -c "gem install bundler:1.17.3"; \
 
su lobsters -c "bundle install --no-cache"; \
 

...
 
Installing whenever 1.0.0
 
Warning: the lockfile is being updated to Bundler 2, after which you will be unable to return to Bundler 1.
 
Bundle updated!
 
...
 
+ su lobsters -c 'bundle install --no-cache'
 
[DEPRECATED] The `--no-cache` flag is deprecated because it relies on being remembered across bundler invocations, which bundler will no longer do in future versions. Instead please use `bundle config set no-cache 'true'`, and stop using this flag
 

...
 
+ su lobsters -c 'gem install bundler --user-install'
 
Successfully installed bundler-2.1.4
 
1 gem installed
 
+ su lobsters -c 'gem update'
 
Updating installed gems
 
Updating bundler
 
Successfully installed bundler-2.1.4
 
...
 

su lobsters -c "bundle update --bundler"; \
 
su lobsters -c "gem install bundler:1.17.3"; \
 

...
 
Fetching rake 13.0.1
 
Installing rake 13.0.1
 
...
 

rake aborted!
 
Bundler::GemNotFound: Could not find rake-13.0.1 in any of the sources
 
...
 
bundler: failed to load command: rake (/usr/local/bin/rake)
 
Bundler::GemNotFound: Could not find rake-13.0.1 in any of the sources
 
...
 
bundler: command not found: rails
 
Install missing gem executables with `bundle install`
 
...
 

...
 
su lobsters -c "gem install bundler --user-install"; \
 
su lobsters -c "gem install rake";
 
...
 

su lobsters -c "gem install rake bundler --user-install";
 

/usr/local/lib/ruby/2.7.0/rubygems.rb:275:in `find_spec_for_exe': can't find gem rake (>= 0.a) with executable rake (Gem::GemNotFoundException)
 
    from /usr/local/lib/ruby/2.7.0/rubygems.rb:294:in `activate_bin_path'
 
    from /lobsters/.gem/ruby/2.7.0/bin/rake:23:in `<main>'
 
...
 

docker run --rm -it ruby:2.7-alpine ruby -v

 
ruby 2.7.0p0 (2019-12-25 revision 647ee6f091) [x86_64-linux-musl]
 

- su lobsters -c 'gem update'
 
+ su lobsters -c 'gem update --system'
 

su lobsters -c "gem install rake bundler --user-install"; \
 
su lobsters -c "gem update --system"; \

 
+ gem install rake; \
 

/lobsters/.bundle/ruby/2.7.0/gems/activerecord-5.2.4.1/lib/active_record/migration.rb:871: warning: Using the last argument as keyword parameters is deprecated; maybe ** should be added to the call
 

You must use Bundler 2 or greater with this lockfile.
 
https://stackoverflow.com/questions/53231667/bundler-you-must-use-bundler-2-or-greater-with-this-lockfile
 

- su lobsters -c "bundle install --no-cache"; \

 
+ su lobsters -c "bundle config set no-cache 'true'"; \
 
+ su lobsters -c "bundle install"; \
 

su lobsters -c "bundle install"; \
 
- su lobsters -c "bundle add puma --version '~> 4.3.3'"; \
 

bundle list | grep puma

 
* capistrano3-puma (4.0.0)
 
* puma (4.3.3)
 

- su lobsters -c "bundle install"; \
 
+ su lobsters -c "bundle install --without=development,test"; \