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Keycloak Cluster Configuration (How to)

This is a short and simple example on how to build a proper Keycloak cluster, using DNS_PING as discovery protocol and an NGINX server as reverse proxy.

To get it working properly, just enable Docker Swarm mode with docker swarm init and just run it as it were a regular Docker Compose deployment. So, just docker compose up is enough, don't deploy a swarm stack! (This would cause trouble and extra complexity with networking)
Afterwards, you can disable Swarm again with docker swarm leave -f, if needed.

Keycloak Cluster Configuration (How to) - Legacy Wildfly Distribution!!!

This is a short and simple example on how to build a proper Keycloak cluster, using JDBC_PING as discovery protocol and an NGINX server as reverse proxy.

Please see also my video about Keycloak Clustering: http://www.youtube.com/watch?v=P96VQkBBNxU

Create X.509 certificates

(Steps taken from: https://www.baeldung.com/x-509-authentication-in-spring-security)

All passwords: changeit

RootCA

openssl req -x509 -sha256 -days 3650 -newkey rsa:4096 -keyout rootCA.key -out rootCA.crt

Because of Arjuna timeout / closing the connection after 5 mins, setting following additional JAVA_OPTS might help:

-Dquarkus.transaction-manager.default-transaction-timeout=3600
-Dkeycloak.migration.batch-enabled=true
-Dkeycloak.migration.batch-size=1000

Intro

This is an example configuration to have nginx output JSON logs to make it easier for Logstash processing. I was trying to get nginx > Filebeat > Logstash > ES working and it wasn't until I connected Filebeat directly to Elasticsearch that I saw the expected data. Google led me to ingest-convert.sh and I realized filebeat setup works for Filebeat > ES but not Filebeat > Logstash > ES. This is because Logstash does not use ingest pipelines by default. You have to enable them in the elasticsearch output block.

Having nginx log JSON in the format required for Elasticsearch means there's very little processing (i.e. grok) to be done in Logstash. nginx can only output JSON for access logs; the error_log format cannot be changed.

Extra fields are output and not used by the Kibana dashboards. I included them in case they might be useful. Since they are not declared in the filebeat setup, their default is "string" when yo

List of Environment Variables in Windows Operating System

Windows XP Environment Variables

Environment Variable	Path
`%ALLUSERSPROFILE%`	C:\Documents and Settings\All Users
`%APPDATA%`	C:\Documents and Settings{username}\Application Data
`%COMMONPROGRAMFILES%`	C:\Program Files\Common Files
`%COMMONPROGRAMFILES(x86)%`	C:\Program Files (x86)\Common Files

	apiVersion: monitoring.coreos.com/v1
	kind: PrometheusRule
	metadata:
	labels:
	prometheus: system
	role: alert-rules
	name: prometheus-system-rules
	namespace: monitoring
	spec:
	groups:

	apiVersion: monitoring.coreos.com/v1
	kind: PrometheusRule
	metadata:
	labels:
	prometheus: others
	role: alert-rules
	name: prometheus-others-rules
	namespace: monitoring
	spec:
	groups:

	groups:
	- name: CPU rules
	interval: 10s
	rules:
	# The count of CPUs per node, useful for getting CPU time as a percent of total.
	- record: instance:node_cpus:count
	expr: >
	count without (cpu, mode) (
	node_cpu_seconds_total{mode="idle"}
	)

	#!/usr/bin/env python

	"""Replace line breaks, from one format to another."""

	from __future__ import print_function

	import argparse
	import glob
	import os
	import sys