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feat: first version

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Adrien Waksberg 2017-11-09 11:35:27 +01:00
parent 4626ab82be
commit 9359b8a2de
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24
.docker-test Normal file
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#!/bin/bash
ruby_version=${1:-2.4.2}
if ! rvm use "ruby-${ruby_version}" &>/dev/null ; then
echo "The ruby version '${ruby_version}' doesn't exist!"
echo "Available versions are:"
rvm list rubies strings | cut -d '-' -f2
exit 2
fi
echo '# ---------------------------------'
echo "# Use ruby version: ${ruby_version}"
echo '# ---------------------------------'
cp -r /is_master ~/is_master
cd ~/is_master
gem install bundler --no-ri --no-rdoc
bundle install
gem build is_master.gemspec
gem install "is_master-$(cat VERSION).gem"
rubocop
ruby ./test/test_cli.rb

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.gitignore vendored Normal file
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Gemfile.lock
*.gem
.yardoc
doc

38
.rubocop.yml Normal file
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AllCops:
Exclude:
- db/**/*
- config/**/*
- Vagrantfile
TargetRubyVersion: 2.3
Naming/AccessorMethodName:
Enabled: false
Lint/RescueWithoutErrorClass:
Enabled: false
Metrics/LineLength:
Max: 120
Metrics/CyclomaticComplexity:
Enabled: false
Metrics/PerceivedComplexity:
Enabled: false
Metrics/MethodLength:
Enabled: false
Metrics/BlockLength:
Enabled: false
Metrics/ClassLength:
Enabled: false
Metrics/AbcSize:
Enabled: false
Style/NumericLiteralPrefix:
Enabled: false
Style/FrozenStringLiteralComment:
Enabled: false
Style/CommandLiteral:
Enabled: true
EnforcedStyle: percent_x
Style/Documentation:
Enabled: false

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.travis.yml Normal file
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language: ruby
dist: precise
rvm:
- 2.4.2
- 2.3.5
- 2.2.8
- 2.1.10
install:
- bundle install
- gem build is_master.gemspec
- gem install is_master-$(cat VERSION).gem
script:
- rubocop
- ruby ./test/test_cli.rb

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Dockerfile Normal file
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FROM debian:stretch
MAINTAINER Adrien Waksberg "docker@yae.im"
RUN apt update
RUN apt dist-upgrade -y
RUN apt install -y procps gnupg1 curl git
RUN ln -snvf /usr/bin/gpg1 /usr/bin/gpg
RUN gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
RUN curl -sSL https://get.rvm.io | bash -s stable
RUN echo 'source "/usr/local/rvm/scripts/rvm"' >> /etc/bash.bashrc
RUN /bin/bash -l -c "rvm install 2.4.2"
RUN /bin/bash -l -c "rvm install 2.3.5"
RUN /bin/bash -l -c "rvm install 2.2.8"
RUN /bin/bash -l -c "rvm install 2.1.10"

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source 'https://rubygems.org'
group :development do
gem 'rubocop', '0.50.0'
gem 'test-unit'
end

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# is_master
[![Version](https://img.shields.io/badge/latest_version-1.0.0-green.svg)](https://github.com/nishiki/is_master/releases)
[![Build Status](https://travis-ci.org/nishiki/is_master.svg?branch=master)](https://travis-ci.org/nishiki/is_master)
[![License](https://img.shields.io/badge/license-Apache--2.0-blue.svg)](https://github.com/nishiki/is_master/blob/master/LICENSE)
is_master execute a command when it determine that server is master
## Install
On debian or ubuntu:
```
apt install ruby
gem install is_master
```
## How to use
It's simple:
```
is_master 10.0.254.2 ls -l
```
## Development
### Test on local machine with docker
* install [docker](https://docs.docker.com/engine/installation/)
* run the tests
```
docker run -v $(pwd):/is_master:ro -it nishiki/ruby:stretch /bin/bash -l /is_master/.docker-test
```
## License
```
Copyright (c) 2017 Adrien Waksberg
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
```

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VERSION Normal file
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1.0.0

19
bin/is_master Executable file
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#!/usr/bin/env ruby
require 'socket'
if ARGV.length < 2
puts 'is_master execute a command when it determine that server is master'
puts "Usage: #{$PROGRAM_NAME} VIP COMMAND"
puts ' VIP - IP address expected to be master'
puts ' COMMAND - Command to execute if host is master'
exit 2
end
vip = ARGV[0]
command = ARGV[1..-1].join(' ')
if Socket.ip_address_list.map(&:ip_address).include?(vip)
Kernel.exec(command)
else
puts 'OK - I am slave, i going to sleep'
end

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lib = File.expand_path('../lib', __FILE__)
$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
Gem::Specification.new do |spec|
spec.name = 'is_master'
spec.version = File.open('VERSION').read
spec.authors = ['Adrien Waksberg']
spec.email = ['is_master@yae.im']
spec.summary = 'is_master execute a command when it determine that server is master'
spec.homepage = 'https://github.com/nishiki/is_master'
spec.license = 'Apache-2.0'
spec.files = %x(git ls-files -z).split("\x0")
spec.executables = ['is_master']
spec.test_files = spec.files.grep(%r{^(test|spec|features)/})
spec.require_paths = ['lib']
spec.required_ruby_version = '>= 2.1'
end

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require 'test/unit'
class TestCli < Test::Unit::TestCase
def test_slave_mode
output = %x(is_master 10.255.255.0 echo 'GOOD!')
assert_match('I am slave', output)
end
def test_master_mode
output = %x(is_master 127.0.0.1 echo 'GOOD!')
assert_match('GOOD!', output)
end
end