Pavol Gressa pgressa

Consul watches support for Micronaut Service Discovery

Currently supported watches by Consul [1]:

key - Watch a specific KV pair
keyprefix - Watch a prefix in the KV store
services - Watch the list of available services
nodes - Watch the list of nodes
service- Watch the instances of a service
checks - Watch the value of health checks
event - Watch for custom user events

Intro

In this scenario we will demonstrate the Micronaut Kubernetes Discovery module.

Prerequisites:

kubernetes cluster
docker
java
dockerhub account

Cloud Object Storage Abstraction Layer

Q: Shouldn't we name it like Cloud Agnostic Object Storage Interface

The Object Storage is one of the fundamental services provided by the cloud provides. The objects are generally stored in the tree directory structure similary like on the file system. The objects are consumed either by API or in most cases by their unique HTTP URL or by cloud specific internal URI (See Appendix 1).

Motivation

The initiative addresses a growing need to support the hybrid cloud applications by allowing the developers to transparently access and manipulate the objects from within applications running in various cloud environments.

	# using symbolic link which are pointing to maven modules with real source code
	# pros:
	# - maven standard structure
	# cons:
	# - symbolic link there

	<root>
	\|- resources -> /libs/src/main/resources
	\|- vars -> /libs/src/main/groovy/vars
	\|- src -> /libs/src/main/groovy/src

	./mvnw clean package deploy -Dpackaging=docker-native -Ddocker.image.suffix=native --no-transfer-progress -Pgraalvm
	docker images --digests \| grep -v "<none>" \| grep carts-native
	shell: /usr/bin/bash -e {0}
	env:
	JAVA: 11
	JAVA_HOME: /home/opc/mushop/runner_1/_work/_tool/Java_Adopt_jdk/11.0.11-9/x64
	--2021-06-01 10:25:42-- https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar
	Resolving repo.maven.apache.org (repo.maven.apache.org)... 199.232.152.215
	Connecting to repo.maven.apache.org (repo.maven.apache.org)\|199.232.152.215\|:443... connected.
	HTTP request sent, awaiting response... 200 OK

	/app/application: /usr/lib/libstdc++.so.6: no version information available (required by /app/application)
	__ __ _ _
	\| \/ (_) ___ _ __ ___ _ __ __ _ _ _\| \|_
	\| \|\/\| \| \|/ __\| '__/ _ \\| '_ \ / _` \| \| \| \| __\|
	\| \| \| \| \| (__\| \| \| (_) \| \| \| \| (_\| \| \|_\| \| \|_
	\|_\| \|_\|_\|\___\|_\| \___/\|_\| \|_\|\__,_\|\__,_\|\__\|
	Micronaut (v2.5.4)

	10:02:13.454 [main] INFO i.m.context.env.DefaultEnvironment - Established active environments: [k8s, cloud, oraclecloud]
	10:02:13.466 [main] INFO com.oracle.bmc.Services - Registering new service: Services.BasicService(serviceName=DATABASE, serviceEndpointPrefix=database, serviceEndpointTemplate=https://database.{region}.{secondLevelDomain})

	19:35:11.839 [default-nioEventLoopGroup-5-14] DEBUG i.m.h.s.netty.RoutingInBoundHandler - Request GET /api/config
	19:35:11.839 [default-nioEventLoopGroup-5-13] DEBUG i.m.h.s.netty.RoutingInBoundHandler - Request GET /api/profile
	19:35:11.839 [default-nioEventLoopGroup-5-14] DEBUG io.lettuce.core.RedisChannelHandler - dispatching command AsyncCommand [type=HGETALL, output=MapOutput [output=AsyncCommand [type=HGETALL, output=MapOutput [output={}, error='null'], commandType=io.lettuce.core.protocol.Command], error='null'], commandType=io.lettuce.core.protocol.Command]
	19:35:11.839 [default-nioEventLoopGroup-5-14] DEBUG i.l.core.protocol.DefaultEndpoint - [channel=0xd612b754, /10.244.0.148:45578 -> mushop-session/10.96.79.153:6379, epid=0x2] write() writeAndFlush command AsyncCommand [type=HGETALL, output=MapOutput [output=[channel=0xd612b754, /10.244.0.148:45578 -> mushop-session/10.96.79.153:6379, epid=0x2], error='null'], commandType=io.lettuce.core.protocol.Command]
	19:35:11.839 [default-nioEventLoopGroup-5-1

	AWSTemplateFormatVersion: "2010-09-09"
	Transform: AWS::SecretsManager-2020-07-23
	Description: Deploys an RDS instance
	Metadata:
	AWS::CloudFormation::Interface:
	ParameterGroups:
	- Label:
	default: Basic configuration
	Parameters:
	- DBName

	#!/usr/bin/env bash

	REPOSITORY_URL=$1
	TOKEN=$2

	RUNNER_ID=1000
	RUNNER_DIR_NAME=

	for i in {0..1000}; do
	RUNNER_DIR_NAME=runner_$i