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 $ cat ~/bin/git-update-from-origin
#!/usr/bin/env zsh
git pull origin "${$(git symbolic-ref HEAD)#refs/heads/}"

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Promoting images with Docker & OpenShift

You need to have the oc command installed to interact with OpenShift from the command line. This can be installed from https://github.com/openshift/origin. Docker is also required. Search online for information on how to do that.

These are the commands to ensure your system state is such that you can perform an image promotion between staging and production.

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** (Mix) httpc request failed with: :socket_closed_remotely

Could not install Hex because Mix could not download metadata at https://repo.hex.pm/installs/hex-1.x.csv.signed.


10:05:53.111 [error] Failed updating session:
   ProfileName: :httpc_mix
   SessionId:   {{'repo.hex.pm', 443}, #PID<0.111.0>}
   Pos:         7
   Value:       0

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Thread 1: main (WAITING)

sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:997)
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1304)
java.util.concurrent.CountDownLatch.await(CountDownLatch.java:231)
akka.actor.ActorSystemImpl$TerminationCallbacks.ready(ActorSystem.scala:817)
akka.actor.ActorSystemImpl$TerminationCallbacks.ready(ActorSystem.scala:786)

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#!/bin/sh
spark-submit \
	--class org.alitouka.spark.dbscan.exploratoryAnalysis.DistanceToNearestNeighborDriver \
	--master yarn \
	--deploy-mode cluster \
	--driver-cores 4 \
	--num-executors 10 \
	--executor-memory 8g \
	--executor-cores 4 \
	--conf spark.yarn.executor.memoryOverhead=1024 \

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module Foo
  def self.included base
    puts "Included by #{base}"
  end
end

class Bar
  include Foo

  def self.inherited(base)

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CIDER Commands

C-c +

• M-j: Jack into an nREPL session and open a REPL buffer.
• M-n: Switch REPL to the current buffer's namespace.
• C-z: Open REPL and move cursor to REPL.
• C-o: Clear the last line's output.
• M-o: Clear all the output

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def function(a)
  a.group_by.inject({}) do |hash, (key,val)|
    hash[key] = val.count if val.count > 1
    hash
  end
end

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ruby_version = ask("What ruby version is your app?")
ruby_gemset = ask("What do you want to name your gemset?")

file(".ruby-version", ruby_version)
file(".ruby-gemset", ruby_gemset)

gem 'haml-rails'

gem 'bootstrap-sass'

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Resetting...
Resetting stock for product 22 to 104 units.

(1 row(s) affected)
Removing order (OrderID=11077, ProductID=22).

(1 row(s) affected)
Adding order to Order Details table for 50 units of product 22.

(1 row(s) affected)