This is a gist used in the following blog posts:
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stages: | |
- build | |
- test | |
- deploy | |
variables: | |
# from https://storage.googleapis.com/kubernetes-release/release/stable.txt | |
K8S_STABLE_VERSION_URL: https://storage.googleapis.com/kubernetes-release/release/v1.10.4/bin/linux/amd64/kubectl | |
build: |
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container: | |
image: gradle:4.4.1-jdk8 | |
cpu: 4 | |
memory: 12G | |
no_caching_task: | |
dist_script: gradle dist --no-build-cache | |
global_caching_task: | |
gradle_cache: |
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# en1 for WLAN | |
# en0 for Ethernet | |
sudo ifconfig en1 down | |
sudo route flush | |
sudo ifconfig en1 up |
IPTables is the Firewall service that is available in a lot of different Linux Distributions. While modifiying it might seem daunting at first, this Cheat Sheet should be able to show you just how easy it is to use and how quickly you can be on your way mucking around with your firewall.
The following list is a great set of documentation for iptables
. I used them to compile this documentation.
- How-To Geek: The Beginner’s Guide to iptables, the Linux Firewall: https://www.howtogeek.com/177621/the-beginners-guide-to-iptables-the-linux-firewall/
- IPTables Essentials: Common Firewall Rules and COmmands https://www.digitalocean.com/community/tutorials/iptables-essentials-common-firewall-rules-and-commands
Jon Warbrick, July 2014, V3.2 (for Ansible 1.7)
First one found from of
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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" |
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#!/bin/bash | |
# Do not run if removal already in progress. | |
pgrep "docker rm" && exit 0 | |
# Remove Dead and Exited containers. | |
docker rm $(docker ps -a | grep "Dead\|Exited" | awk '{print $1}'); true | |
# It will fail to remove images currently in use. | |
docker rmi $(docker images -qf dangling=true); true |
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import boto3 | |
import logging | |
#setup simple logging for INFO | |
logger = logging.getLogger() | |
logger.setLevel(logging.INFO) | |
#define the connection | |
ec2 = boto3.resource('ec2') |
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# Backup | |
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql | |
# Restore | |
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE | |
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