alces’s gists

alces / settings.py

Created May 29, 2017 08:55

Example of settings.py for Eve with disabled schema-checking and if-match concurrency control

	ALLOW_UNKNOWN = True
	DOMAIN = {'col01': {'schema': {}}}
	IF_MATCH = False
	ITEM_METHODS = ['GET', 'PATCH', 'PUT', 'DELETE']
	MONGO_DBNAME = 'db01'
	RESOURCE_METHODS = ['GET', 'POST', 'DELETE']
	URL_PREFIX = 'api'

alces / readYaml.groovy

Created May 2, 2017 13:04

Reading YAML from Groovy using snakeyaml (its jar file is available on Maven Central, no dependencies)

	import org.yaml.snakeyaml.Yaml

	new Yaml().load(new FileReader('path/to/your/yaml/file'))
	// and do whatenver your want with the returned map

alces / build.xml

Created April 9, 2017 21:53

How to run a command against each file from a set using Apache Ant

	<!-- See http://ant.apache.org/manual/index.html for the complete list of options supported by <apply> task -->
	<project name="cycle-test" default="stat-cycle">
	<target name="stat-cycle">
	<!-- set parall="true" in order to run the command only once against all files from the set -->
	<apply executable="stat">
	<fileset dir="/etc">
	<patternset>
	<include name="*.conf" />
	</patternset>
	</fileset>

alces / ansible_check_syntax.sh

Created April 9, 2017 20:25

How to check whether a given Ansible playbook is syntaxically correct

ansible-playbook -i localhost, --syntax-check my-playbook.yml

alces / etcd_setup.sh

Created January 30, 2017 22:16

Extract only necessary files from etcd distribution and start one-node cluster

	#!/bin/bash
	# tested on CentOS 6.8

	tar xvzf etcd-v3.1.0-linux-amd64.tar.gz --strip-components 1 --exclude Documentation --exclude '*.md'
	myip=$(hostname -I \| awk '{print $1}')
	nohup ./etcd --data-dir etcd_data --listen-client-urls http://${myip}:2379 --advertise-client-urls http://${myip}:2379 2>&1 > etcd.log &
	echo $! > etcd.pid

alces / ansible_cp_r.yml

Created December 22, 2016 11:35

Ansible playbook copying content of a remote directory to another recursively

alces / GetJobNameFromDSL.groovy

Created December 13, 2016 12:03

Getting a name of the currently generated Jenkins job from inside DSL script

	// from top-level of the job block:
	delegate.name

	// from a nested block (such as parameters, steps, etc.):
	delegate.item.name

alces / SetBuildEnvVars.groovy

Created December 1, 2016 07:48

Set environment variables during a Jenkins build using Groovy

	// should be run as Groovy System Script

	import hudson.EnvVars
	import hudson.model.Environment

	def build = Thread.currentThread().executable
	def vars = [ENV_VAR1: 'value1', ENV_VAR2: 'value2']

	build.environments.add(0, Environment.create(new EnvVars(vars)))

alces / ShellCommand.groovy

Last active August 23, 2016 07:20

Execute a shell command from Groovy, print its output, and process non-zero exit status

	def cmdLine = args.join(' ')
	def ps = cmdLine.execute()
	ps.in.eachLine {
	println it
	}

	def status = ps.exitValue()
	if (status) {
	println ps.err.text
	throw new IOException("$cmdLine returns $status")

alces / ant_get.groovy

Created July 5, 2016 07:16

How to download a file via HTTP/HTTPS in Groovy script using "get" task from Ant. The script requires no external dependencies.

	def ant = new AntBuilder()
	ant.get(src: 'http://central.maven.org/maven2/jsch/jsch/0.1.29/jsch-0.1.29.jar',
	dest: 'jsch.jar')

Alexey Zalesny alces