>>> docker exec -it CONTAINERID /bin/sh
/app # telnet
/bin/sh: telnet: not found
/app # apk update
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/community/x86_64/APKINDEX.tar.gz
v3.7.0-243-gf26e75a186 [http://dl-cdn.alpinelinux.org/alpine/v3.7/main]
v3.7.0-229-g087f28e29d [http://dl-cdn.alpinelinux.org/alpine/v3.7/community]
// A Declarative Pipeline is defined within a 'pipeline' block. | |
pipeline { | |
// agent defines where the pipeline will run. | |
agent { | |
// This also could have been 'agent any' - that has the same meaning. | |
label "" | |
// Other possible built-in agent types are 'agent none', for not running the | |
// top-level on any agent (which results in you needing to specify agents on | |
// each stage and do explicit checkouts of scm in those stages), 'docker', |
#!groovy | |
import groovy.json.JsonOutput | |
import groovy.json.JsonSlurper | |
def label = "mypod-${UUID.randomUUID().toString()}" | |
podTemplate(label: label, yaml: """ | |
spec: | |
containers: | |
- name: mvn | |
image: maven:3.3.9-jdk-8 |
Starting with 1.12 in July 2016, Docker Swarm Mode is a built-in solution with built-in key/value store. Easier to get started, and fewer ports to configure.
- TCP port 2377 for cluster management & raft sync communications
- TCP and UDP port 7946 for "control plane" gossip discovery communication between all nodes
- UDP port 4789 for "data plane" VXLAN overlay network traffic
- IP Protocol 50 (ESP) if you plan on using overlay network with the encryption option
Jon Warbrick, July 2014, V3.2 (for Ansible 1.7)
First one found from of
node { | |
echo 'Results included as an inline comment exactly how they are returned as of Jenkins 2.121, with $BUILD_NUMBER = 1' | |
echo 'No quotes, pipeline command in single quotes' | |
sh 'echo $BUILD_NUMBER' // 1 | |
echo 'Double quotes are silently dropped' | |
sh 'echo "$BUILD_NUMBER"' // 1 | |
echo 'Even escaped with a single backslash they are dropped' | |
sh 'echo \"$BUILD_NUMBER\"' // 1 | |
echo 'Using two backslashes, the quotes are preserved' | |
sh 'echo \\"$BUILD_NUMBER\\"' // "1" |
Use these rapid keyboard shortcuts to control the GitHub Atom text editor on macOS.
- ⌘ : Command key
- ⌃ : Control key
- ⌫ : Delete key
- ← : Left arrow key
- → : Right arrow key
- ↑ : Up arrow key
#!/bin/bash | |
##################################################### | |
# Name: Bash CheatSheet for Mac OSX | |
# | |
# A little overlook of the Bash basics | |
# | |
# Usage: | |
# | |
# Author: J. Le Coupanec | |
# Date: 2014/11/04 |
Moved to git repository: https://github.com/denji/nginx-tuning
For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.
Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon
with HyperThreading enabled, but it can work without problem on slower machines.
You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.