Mateusz Sójka matisojka

## docker-cleanup-resources-centos.md

      
              1 file
            
          
              0 forks
            
          
              0 comments
            
          
              1 star
            
          
                matisojka
                / docker-cleanup-resources-centos.md
            
            
              Last active
              June 1, 2018 19:32
                — forked from bastman/docker-cleanup-resources.md
            
              
                docker cleanup guide: containers, images, volumes, networks (CentOS version)
              
          
    Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...
delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ sudo docker volume rm $(sudo docker volume ls -qf dangling=true)

$ sudo docker volume ls -qf dangling=true | xargs -r sudo docker volume rm

  
## singleton_spec.rb
class MySingletonClass
  include Singleton

  def initialize
    ## Do some initializing
  end

  ## Your business logic

end

## enteprisifier.rb
class Enterprisifier
  def self.enterprisify!
    sleep 5
  end
end

## Dockerfile
FROM alpine:3.2

ENV GOROOT=/usr/lib/go \
    GOPATH=/gopath \
    GOBIN=/gopath/bin \
    PATH=$PATH:$GOROOT/bin:$GOPATH/bin

WORKDIR /gopath/src/app
ADD . /gopath/src/app

## Dockerfile
FROM google/golang:stable
# Godep for vendoring
RUN go get github.com/tools/godep
# Recompile the standard library without CGO
RUN CGO_ENABLED=0 go install -a std

MAINTAINER mateusz.sojka@deindeal.ch
ENV APP_DIR $GOPATH/Users/mati/deindeal/moosehead/modules/newsletter_feeds

# Set the entrypoint

## comparison.rb
require 'benchmark'

name = 'my_cool_string'

Benchmark.bmbm(10) do |x|
  x.report('name[0] hit') do
    1_000_000.times { name[0] == 'm' }
  end
  x.report('name[0] miss') do
    1_000_000.times { name[0] == 'y' }

## measure_gem_loading_time.rb
# Disclaimer: this solution has been taken from the post: http://stackoverflow.com/a/5071198/784270

# navigate to the bundler gem and in lib/bundler/runtime.rb,
# find the line that does Kernel.require and wrap it like this

puts Benchmark.measure("require #{file}") {
  Kernel.require file
}.format("%n: %t %r")

# Add

## chef_solo_bootstrap.sh
#!/usr/bin/env bash
apt-get -y update
apt-get -y install build-essential zlib1g-dev libssl-dev libreadline5-dev libyaml-dev
cd /tmp
wget ftp://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p125.tar.gz
tar -xvzf ruby-1.9.3-p125.tar.gz
cd ruby-1.9.3-p125/
./configure --prefix=/usr/local
make
make install

## gist:2236364
alter database DATABASE_NAME charset=utf8

## valid_json.rb
def valid_json?(value)
  JSON.parse value
  true
rescue JSON::ParserError, TypeError
  false
end
	class MySingletonClass
	include Singleton

	def initialize
	## Do some initializing
	end

	## Your business logic

	end
	FROM alpine:3.2

	ENV GOROOT=/usr/lib/go \
	GOPATH=/gopath \
	GOBIN=/gopath/bin \
	PATH=$PATH:$GOROOT/bin:$GOPATH/bin

	WORKDIR /gopath/src/app
	ADD . /gopath/src/app
	FROM google/golang:stable
	# Godep for vendoring
	RUN go get github.com/tools/godep
	# Recompile the standard library without CGO
	RUN CGO_ENABLED=0 go install -a std

	MAINTAINER mateusz.sojka@deindeal.ch
	ENV APP_DIR $GOPATH/Users/mati/deindeal/moosehead/modules/newsletter_feeds

	# Set the entrypoint
	require 'benchmark'

	name = 'my_cool_string'

	Benchmark.bmbm(10) do \|x\|
	x.report('name[0] hit') do
	1_000_000.times { name[0] == 'm' }
	end
	x.report('name[0] miss') do
	1_000_000.times { name[0] == 'y' }
	# Disclaimer: this solution has been taken from the post: http://stackoverflow.com/a/5071198/784270

	# navigate to the bundler gem and in lib/bundler/runtime.rb,
	# find the line that does Kernel.require and wrap it like this

	puts Benchmark.measure("require #{file}") {
	Kernel.require file
	}.format("%n: %t %r")

	# Add
	#!/usr/bin/env bash
	apt-get -y update
	apt-get -y install build-essential zlib1g-dev libssl-dev libreadline5-dev libyaml-dev
	cd /tmp
	wget ftp://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p125.tar.gz
	tar -xvzf ruby-1.9.3-p125.tar.gz
	cd ruby-1.9.3-p125/
	./configure --prefix=/usr/local
	make
	make install
	def valid_json?(value)
	JSON.parse value
	true
	rescue JSON::ParserError, TypeError
	false
	end