Haoyuan Ge harryge00

Mesos-DNS 部署

Mesos-dns是 mesos 服务发现工具，能查找app的Ip，端口号以及master，leader等信息。在Apache Mesos 集群中,允许应用程序和服务通过域名系统(DNS)来相互定位。Mesos-DNS 的特点是轻量、无状态,易于部署和维护。Mesos-DNS 将每个集群中正在运行的应用程序的域名转换成IP 地址和端口号。这使得任何链接到集群中运行的服务都可以通过DNS 进行查找。 Mesos-DNS是简单和无状态的，它不需要一致性机制，持久存储或日志复制，因为应用所需的心跳，健康监控或生命周期管理等功能都已经由Master、Agent和框架所提供。Mesos-DNS可以通过使用像Marathon这样的框架来实现容错，可以监控应用程序运行状况并在应用出现故障时重新启动它。Mesos-DNS因故障重新启动时，无需进一步协调它会从Master节点检索最新的应用状态，然后处理DNS请求。可以通过增加Master节点，即可提高可用性并为大规模集群中的DNS请求提供负载均衡。

Mesos-DNS 安装

Mesos-DNS 可以装在Mesos集群的任意一台机器上，或者是在同一网络的一台专用机器上。为了实现HA，可以在多个master上分别部署mesos-dns 实例。

wget https://github.com/mesosphere/mesos-dns/releases/download/v0.6.0/mesos-dns-v0.6.0-linux-amd64
sudo mv mesos-dns-v0.6.0-linux-amd64 /usr/local/bin/

	{
	"packages":[
	{
	"packagingVersion":"3.0",
	"name":"nettools",
	"version":"3.0.7-0.0.1",
	"maintainer":"[email protected]",
	"description":"This is a single nettools container, which is suited for HA setups. nettools is a popular in-memory data structure store, used as database, cache and message broker.. See documentation for more details: https://github.com/dcos/examples/tree/master/nettools ",
	"website":"http://nettools.io",
	"framework":false,

	global:
	scrape_interval: 15s
	scrape_configs:
	- job_name: 'istio-mesh'
	# Override the global default and scrape targets from this job every 5 seconds.
	scrape_interval: 5s
	static_configs:
	- targets:
	- istio-telemetry.marathon.slave.mesos:31093
	- istio-telemetry.marathon.slave.mesos:31422

	# git aliases - taken from oh-my-zsh's git plugin and translated to bash
	# https://github.com/robbyrussell/oh-my-zsh/wiki/Cheatsheet#helpful-aliases-for-common-git-tasks
	# https://github.com/robbyrussell/oh-my-zsh/blob/master/plugins/git/git.plugin.zsh
	function git_current_branch() {
	ref=$(git symbolic-ref HEAD 2> /dev/null) \|\| \
	ref=$(git rev-parse --short HEAD 2> /dev/null) \|\| return
	echo ${ref#refs/heads/}
	}
	function git_current_repository() {
	ref=$(git symbolic-ref HEAD 2> /dev/null) \|\| \

	apiVersion: v1
	clusters:
	- cluster:
	server: http://apiserver.marathon.slave.mesos:31080
	name: kubernetes
	contexts:
	- context:
	cluster: kubernetes
	user: kubernetes-admin
	name: kubernetes

	apiVersion: v1
	clusters:
	- cluster:
	server: http://apiserver.marathon.slave.mesos:31333
	name: kubernetes
	contexts:
	- context:
	cluster: kubernetes
	user: kubernetes-admin
	name: kubernetes

	gcr.mirrors.ustc.edu.cn/

	gcr.mirrors.ustc.edu.cn/distroless/static

	MESOS_CGROUPS_ENABLE_CFS=true
	MESOS_CGROUPS_LIMIT_SWAP=false
	MESOS_CONTAINERIZERS=docker,mesos
	MESOS_CONTAINER_LOGGER=com_mesosphere_mesos_JournaldLogger
	MESOS_DEFAULT_CONTAINER_DNS=file:///opt/mesosphere/etc/mesos-slave-dns.json
	MESOS_DISALLOW_SHARING_AGENT_PID_NAMESPACE=true
	MESOS_DOCKER_REMOVE_DELAY=1hrs
	MESOS_DOCKER_STOP_TIMEOUT=20secs
	MESOS_DOCKER_STORE_DIR=/var/lib/mesos/slave/store/docker
	MESOS_DOCKER_VOLUME_CHECKPOINT_DIR=/var/lib/mesos/isolators/docker/volume