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Tag Archives: k8s
为kubectl增加插件
先下载配置文件和相应的tar包,并对tar包解压,释放出可执行文件: wget https://storage.googleapis.com/krew/v0.2.1/krew.tar.gz wget https://storage.googleapis.com/krew/v0.2.1/krew.yaml tar -zxvf krew.tar.gz # wget https://storage.googleapis.com/krew/v0.2.1/krew.tar.gz –2020-01-13 08:34:35– https://storage.googleapis.com/krew/v0.2.1/krew.tar.gz Resolving storage.googleapis.com (storage.googleapis.com)… 172.217.164.112, 2607:f8b0:4005:807::2010 Connecting to storage.googleapis.com (storage.googleapis.com)|172.217.164.112|:443… connected. HTTP request sent, awaiting response… 200 OK Length: 14375157 (14M) [application/x-tar] Saving to: ‘krew.tar.gz’ 100%[=====================================================>] 14,375,157 … Continue reading
为K8S增加swap support
正如前文所说,k8s 的node节点配置太垃圾,故在之前的测试方案中增加了swap的support,实际生产环境不推荐这么跑,这么做的目的无非是一种穷屌丝的做法。 首先,开启kubelet的swap support,在/etc/sysconfig/kubelet中追加如下字段: –fail-swap-on=false 比如我的配置文件内容为:
将pod强制schedule到master节点上
线上机器性能比较差,为满足kubeadm的initial检查,故只有master的配置比较高,毕竟囊中羞涩嘛! 事情的开端始于想跑一个Jenkins用于实验和学习,结果JVM直接把垃圾的Node 干趴下了,load最高跑到了29,一脸懵逼…… 经过几次调整,甚至还给Node上添加了swap,结果还是无法满足需求,因而只能用别的方案…… 由于master上除了一些基础调度服务,没有跑过其他的Pod,故决定将Jenkins跑在master上,死马当活马医,实在不行再“学李白,重来……”
Posted in Kubernetes, Platform
Tagged k8s, kubernetes, Linux, Load, Pod调度, Troubleshooting, 非标
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GlusterFS与Kubernetes的适配
安装epel源 pssh -l auto -h /opt/node.list -i ‘sudo yum install -y epel-release*’ 安装heketi