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@Neo23x0
Neo23x0 / audit.rules
Last active March 11, 2025 10:24
Linux Auditd Best Practice Configuration
# IMPORTANT!
# This gist has been transformed into a github repo
# You can find the most recent version there:
# https://github.com/Neo23x0/auditd
# ___ ___ __ __
# / | __ ______/ (_) /_____/ /
# / /| |/ / / / __ / / __/ __ /
# / ___ / /_/ / /_/ / / /_/ /_/ /
# /_/ |_\__,_/\__,_/_/\__/\__,_/
@coresolve
coresolve / patch_example.md
Created October 18, 2017 00:16
An example of using kubectl patch

Start with a simple deployment:

kubectl run simple --image=quay.io/dcooley/simple-app:plain --replicas=3 --port=80 --labels=app=simple

show the yaml for this deployment:

$ kubectl get deployment simple -o yaml --export
apiVersion: extensions/v1beta1
kind: Deployment
@eduardcloud
eduardcloud / LambdaEfsBackup.py
Created September 19, 2017 10:14
Backup EFS file-system to S3 with lambda function
import boto3
import time
region = 'eu-west-1'
user_data_script = """#!/bin/bash
instanceid=$(curl http://169.254.169.254/latest/meta-data/instance-id)
cd /
mkdir moodledata
mount -t nfs4 -o nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2 fs-xxxxxxxxxxc.efs.eu-west-1.amazonaws.com:/ moodledata
tar czf mooodledata-backup-$(date +%d-%m-%Y_%H-%M).tar.gz /moodledata
aws s3 mv mooodledata-backup-*.tar.gz s3://xxxxxxxxx/
@innovia
innovia / kubernetes_add_service_account_kubeconfig.sh
Last active January 29, 2024 23:00
Create a service account and generate a kubeconfig file for it - this will also set the default namespace for the user
#!/bin/bash
set -e
set -o pipefail
# Add user to k8s using service account, no RBAC (must create RBAC after this script)
if [[ -z "$1" ]] || [[ -z "$2" ]]; then
echo "usage: $0 <service_account_name> <namespace>"
exit 1
fi
@xueshanf
xueshanf / extract_kubecfg_cert.sh
Last active February 13, 2023 13:45
Extract kubernetes cluster credentials from kubecfg
#!/bin/bash
# Input: ./extract_kubecfg_cert.sh my-cluster-name username
# Output: ./my-cluster-name-ca.crt ./username.crt ./username.key
# Exit on error
abort(){
echo $1 && exit 1
}
# Prerequistes
@ramboldio
ramboldio / runCertbot.sh
Last active September 9, 2021 16:16
Run Certbot in Docker
#!/bin/bash
# this folder needs to exist
mkdir ~/certs
# authenticate yourself (requires that nothing runs on ports 443 and 80)
docker run --rm -it -v ~/certs:/etc/letsencrypt -p 443:443 certbot/certbot certonly --authenticator standalone
# renewal
docker run --rm -it -v ~/certs:/etc/letsencrypt certbot/certbot renew
@trajakovic
trajakovic / docker_1.13_manual_install_centos.sh
Created March 28, 2017 09:07
Docker 1.13 manual installation on CentOS7 for Openshfit Origin 1.5.0.rc0 (since latest docker version is 17.03, oc cluster up is not happy with version)
yum install wget
wget https://yum.dockerproject.org/repo/main/centos/7/Packages/docker-engine-1.13.1-1.el7.centos.x86_64.rpm
wget https://yum.dockerproject.org/repo/main/centos/7/Packages/docker-engine-selinux-1.13.1-1.el7.centos.noarch.rpm
#nice site with pckgs: https://pkgs.org/
#package for docker-engine-selinux
yum install -y policycoreutils-python
rpm -i docker-engine-selinux-1.13.1-1.el7.centos.noarch.rpm
@miry
miry / 01_extract_crt.rb
Last active September 3, 2023 06:32
Extract certificate from the kubernetes config.
require 'optparse'
require 'yaml'
require 'base64'
options = {
config_path: File.join(ENV['HOME'], '.kube', 'config'),
write_dir: File.join(ENV['HOME'], '.kube')
}
OptionParser.new do |opts|
@alkrauss48
alkrauss48 / Dockerfile
Last active November 10, 2022 16:24
Running a docker container as a non-root user
# By default, Docker containers run as the root user. This is bad because:
# 1) You're more likely to modify up settings that you shouldn't be
# 2) If an attacker gets access to your container - well, that's bad if they're root.
# Here's how you can run change a Docker container to run as a non-root user
## CREATE APP USER ##
# Create the home directory for the new app user.
RUN mkdir -p /home/app
@ozbillwang
ozbillwang / The way to build red hat base docker image without subscription managed registered.md
Last active January 29, 2024 14:47
The way to build red hat base docker image without subscription managed registered.

In redhat, if you need build container from base image, for example, registry.access.redhat.com/rhel7/rhel:7.3-53 (free download from https://access.redhat.com/containers) You have to build this image on a red hat server with subscription managed registered.

Here is the way to bypass the check and you can build docker image on any redhat 7 server.

make sure the package has been installed

yum install rh-amazon-rhui-client

list the package files