gembin

---
# ^^^ YAML documents must begin with the document separator "---"
#
#### Example docblock, I like to put a descriptive comment at the top of my 
#### playbooks.
#
# Overview: Playbook to bootstrap a new host for configuration management.
# Applies to: production
# Description: 
#   Ensures that a host is configured for management with Ansible.

gembin

- What do Etcd, Consul, and Zookeeper do?
  - Service Registration:
    - Host, port number, and sometimes authentication credentials, protocols, versions
      numbers, and/or environment details.
  - Service Discovery:
    - Ability for client application to query the central registry to learn of service location.
  - Consistent and durable general-purpose K/V store across distributed system.
    - Some solutions support this better than others.
    - Based on Paxos or some derivative (i.e. Raft) algorithm to quickly converge to a consistent state.
    - Centralized locking can be based on this K/V store.

gembin

Correspondence between Sun/Oracle JDK, OpenJDK and HotSpot VM versions

build date	Sun/Oracle JDK Version	OpenJDK Version	HotSpot VM Version
2006-11-29	1.6.0-b105		1.6.0-b105
2007-03-14	1.6.0_01-b06		1.6.0_01-b06
2007-06-22	1.6.0_02-b05		1.6.0_02-b05
2007-09-24	1.6.0_03-b05		1.6.0_03-b05
2007-12-14	1.6.0_04-b12		10.0-b19

gembin

#cloud-config

ssh_authorized_keys:
    - ssh-rsa key

write_files:
    - path: /opt/cloud-config.yml
      permissions: 0644
      content: |
        #cloud-config

gembin

#!/bin/sh

workdir=$(mktemp --directory)
trap "rm --force --recursive ${workdir}" SIGINT SIGTERM EXIT

cat >"${workdir}/cloud-config.yml" <<EOF
#cloud-config

coreos:
  etcd:

gembin

That's our RC:

$ cat ws-rc.yaml
apiVersion: v1
kind: ReplicationController
metadata:
  name: webserver-rc
spec:
  replicas: 5

selector:

gembin

Motivation

tl;dr I want to use Rust to program robots. Help me find the best core libraries to build on.

Robotic systems require high performance and reliability, but also have enormous complexity in terms of algorithms employed, number of subsystems, embedded hardware control, and other metrics. Development is mostly split between C++ for performance and safety critical components, and MatLab or Python for quick research or task iteration.

gembin

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

gembin

# redirect output and errors into file output.log:
nohup some_command > output.log 2>&1&

# abbreviated syntax for bash version >= ver.4:
nohup some_command &> output.log

gembin

package selly.spring.data.convert;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.springframework.beans.factory.config.BeanDefinition;