Create install-with-microk8s.md

content/zh/docs/install-with-microk8s.md

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+# 使用 klts 替换 Canonical MicroK8s 的 kubelet
+
+## 环境准备
+
+**操作系统**: CentOS 7
+
+**K8s 版本**: 1.19
+
+## 获取 kubelet 二进制文件
+
+```bash
+$ wget https://github.com/klts-io/kubernetes-lts/raw/rpm-v1.19.16-lts.1/x86_64/kubelet-1.19.16-lts.1.x86_64.rpm
+
+cp ./usr/bin/kubelet kubelet-1.19.16-lts.bin
+```
+
+## 获取 api-server 二进制文件
+
+## 下载并解压 snap 文件
+
+```bash
+$ snap download microk8s --channel=1.19/stable
+Fetching snap "microk8s"
+Fetching assertions for "microk8s"
+Install the snap with:
+   snap ack microk8s_2530.assert
+   snap install microk8s_2530.snap
+
+$ ls -1 .
+microk8s_2530.assert  
+microk8s_2530.snap
+kubelet-1.19.16-lts.bin
+```
+## 替换二进制文件
+```bash
+$ unsquashfs microk8s_2530.snap
+Parallel unsquashfs: Using 8 processors
+4112 inodes (10516 blocks) to write
+...
+created 3896 files
+created 478 directories
+created 212 symlinks
+created 0 devices
+created 0 fifos
+
+$ ls .
+kubelet-1.19.16-lts.bin
+microk8s_2530.assert
+microk8s_2530.snap
+squashfs-root
+
+$ mv squashfs-root/kubelet .squashfs-root/kubelet.bak
+$ cp kubelet-1.19.16-lts.bin squashfs-root/kubelet
+$ ls -lh squashfs-root/kubelet*
+-rwxr-xr-x 1 root root 109M Dec 24 09:45 squashfs-root/kubelet
+-rwxr-xr-x 1 root root 106M Sep 28 07:56 squashfs-root/kubelet.bak
+```
+
+## 压制 snap 文件
+
+```bash
+$ mksquashfs squashfs-root microk8s_2530_lts.snap
+Parallel mksquashfs: Using 8 processors
+Creating 4.0 filesystem on microk8s_2530_lts.snap, block size 131072.
+
+
+Exportable Squashfs 4.0 filesystem, gzip compressed, data block size 131072
+	compressed data, compressed metadata, compressed fragments, compressed xattrs
+	duplicates are removed
+Filesystem size 287906.33 Kbytes (281.16 Mbytes)
+	29.37% of uncompressed filesystem size (980256.53 Kbytes)
+Inode table size 66984 bytes (65.41 Kbytes)
+	37.48% of uncompressed inode table size (178697 bytes)
+Directory table size 46934 bytes (45.83 Kbytes)
+	45.58% of uncompressed directory table size (102960 bytes)
+Number of duplicate files found 337
+Number of inodes 4587
+Number of files 3897
+Number of fragments 345
+Number of symbolic links  212
+Number of device nodes 0
+Number of fifo nodes 0
+Number of socket nodes 0
+Number of directories 478
+Number of ids (unique uids + gids) 1
+Number of uids 1
+	root (0)
+Number of gids 1
+	root (0)
+
+$ ls -1.
+kubelet-1.19.16-lts.bin
+microk8s_2530.assert
+microk8s_2530.snap
+microk8s_2530_lts.snap
+squashfs-root
+```
+
+## 安装本地 snap 文件
+
+<p class="callout warning">因为没有 signature, 所以只能加 --dangerous 参数强制安装</p>
+
+```bash
+$ snap ack microk8s_2530.assert
+
+$ snap install microk8s_2530_lts.snap --classic --dangerous
+microk8s v1.19.15 installed
+
+$ microk8s kubectl get no
+NAME       STATUS     ROLES    AGE   VERSION
+master-1   NotReady   <none>   50s   v1.19.16-lts.1
+```
+参考 [1. 部署单机](https://docs.piraeus.daocloud.io/books/microk8s/page/1) 修改 Mirror 后
+
+```bash
+$ kubectl get no
+NAME                             STATUS   ROLES    AGE   VERSION
+jump.internal.chinacloudapp.cn   Ready    <none>   13m   v1.19.16-lts.1
+
+$ snap services microk8s | grep -w active
+microk8s.daemon-apiserver             enabled  active    -
+microk8s.daemon-apiserver-kicker      enabled  active    -
+microk8s.daemon-cluster-agent         enabled  active    -
+microk8s.daemon-containerd            enabled  active    -
+microk8s.daemon-control-plane-kicker  enabled  active    -
+microk8s.daemon-controller-manager    enabled  active    -
+microk8s.daemon-kubelet               enabled  active    -
+microk8s.daemon-proxy                 enabled  active    -
+microk8s.daemon-scheduler             enabled  active    -
+```