Kubernetes\u306e\u516c\u5f0f\u30da\u30fc\u30b8\u306b\u3001\u591a\u304f\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u304c\u63b2\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\nKubernetes\u306e\u52c9\u5f37\u306e\u4e00\u74b0\u3067\u3001\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3092\u6d88\u5316\u3057\u3066\u3044\u304d\u307e\u3059\u3002
\n\u4eca\u56de\u306f\u3001Kubernetes 101 \u304c\u5bfe\u8c61\u3067\u3059\u3002
\nhttps:\/\/kubernetes.io\/docs\/user-guide\/walkthrough\/<\/p>\n
\u306a\u304a\u3001Kubernetes\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u30012018\u5e744\u6708\u6642\u70b9\u3067\u6700\u65b0\u306e1.10\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
Kubernetes 101 \u57fa\u7840\u77e5\u8bc6<\/p>\n
Kubernetes101\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u5185\u5bb9\u3092\u52c9\u5f37\u3057\u3066\u3044\u304f\u3082\u306e\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
\u57fa\u672c\u7684\u306b\u306fDocument\u3092\u8aad\u3081\u3070\u5206\u304b\u308a\u307e\u3059\u3002
\nhttps:\/\/kubernetes.io\/docs\/reference\/kubectl\/overview\/<\/p>\n
\u57fa\u672c\u7684\u306a\u5185\u5bb9\u3068\u3001\u6c17\u306b\u306a\u3063\u305f\u30dd\u30a4\u30f3\u30c8\u3092\u629c\u304d\u51fa\u3057\u3066\u3053\u3061\u3089\u306e\u8a18\u4e8b\u306b\u8a18\u8f09\u3057\u307e\u3059\u3002<\/p>\n
\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u4f7f\u7528kubectl\uff1a<\/p>\n
kubectl [command] [TYPE] [NAME] [flags]\r\n<\/code><\/pre>\ncommand, TYPE, NAME, flags \u306f\u6b21\u306e\u901a\u308a\u3067\u3059<\/p>\n
\n- \n
command : create, get, describe, delete \u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
TYPE : resource-type\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002\u5927\u6587\u5b57\u5c0f\u6587\u5b57\u3092\u533a\u5225\u3057\u307e\u305b\u3093\u3002\u307e\u305f\u3001\u5358\u6570\u5f62\u30fb\u8907\u6570\u5f62\u30fb\u7701\u7565\u5f62\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059<\/ul>\n
$ kubectl get pod pod1\r\n $ kubectl get pods pod1\r\n $ kubectl get po pod1\r\n<\/code><\/pre>\nNAME : \u30ea\u30bd\u30fc\u30b9\u306e\u540d\u524d\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002NAME\u3092\u7701\u7565\u3059\u308b\u3068\u3001\u5168\u3066\u306e\u30ea\u30bd\u30fc\u30b9\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u307e\u305f\u3001\u8907\u6570\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u8868\u793a\u3057\u305f\u3044\u6642\u306f\u3001\u8907\u6570\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059<\/p>\n
\u540c\u3058TYPE\u306b\u6240\u5c5e\u3057\u3066\u3044\u308b\u8907\u6570\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u8868\u793a<\/p>\n
kubectl get pod example-pod1 example-pod2<\/p>\n
\u7570\u306a\u308bTYPE\u306b\u6240\u5c5e\u3057\u3066\u3044\u308b\u8907\u6570\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u8868\u793a<\/p>\n
kubectl get pod\/example-pod1 replicationcontroller\/example-rc1<\/p>\n
YAML File\u3067\u8907\u6570\u6307\u5b9a<\/p>\n
kubectl get pod -f .\/pod.yaml<\/p>\n
flags : \u30cf\u30a4\u30d5\u30f3\u3092\u6307\u5b9a\u3057\u3066\u69d8\u3005\u306a\u30d5\u30e9\u30b0\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002flags\u3067\u6307\u5b9a\u3057\u305f\u5185\u5bb9\u306f\u3001default\u5024\u3084\u74b0\u5883\u5909\u6570\u3067\u6307\u5b9a\u3057\u3066\u3044\u308b\u5185\u5bb9\u3092\u4e0a\u66f8\u304d\u3057\u3066\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u5f15\u8d77\u4e86\u6211\u7684\u5174\u8da3\u7684\u8bdd\u9898<\/h2>\n\u8f93\u51fa\u6a21\u5f0f<\/h3>\n
\u60a8\u53ef\u4ee5\u6307\u5b9akubectl\u7684\u8f93\u51fa\u683c\u5f0f\u3002<\/p>\n
kubectl [command] [TYPE] [NAME] -o=<output_format>\r\n<\/code><\/pre>\njson\u3084yaml\u306a\u3069\u306e\u591a\u6570\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\n\u305d\u306e\u4e2d\u3067\u79c1\u304c\u6c17\u306b\u306a\u3063\u305f\u306e\u306f -o wide\u3067\u3059\u3002
\n\u901a\u5e38\u306eget\u3068\u6bd4\u3079\u3066\u3001\u8ffd\u52a0\u60c5\u5831\u3092\u540c\u6642\u306b\u8868\u793a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
-o wide \u306a\u3057<\/p>\n
[root@sugi-kubernetes110-master01 ~]# kubectl get pods --all-namespaces \r\nNAMESPACE NAME READY STATUS RESTARTS AGE\r\nkube-system etcd-sugi-kubernetes110-master01.localdomain 1\/1 Running 1 2h\r\nkube-system kube-apiserver-sugi-kubernetes110-master01.localdomain 1\/1 Running 1 2h\r\nkube-system kube-controller-manager-sugi-kubernetes110-master01.localdomain 1\/1 Running 1 2h\r\nkube-system kube-dns-86f4d74b45-bvps2 3\/3 Running 3 2h\r\nkube-system kube-flannel-ds-5tgh7 1\/1 Running 1 2h\r\nkube-system kube-flannel-ds-d92qj 1\/1 Running 1 2h\r\nkube-system kube-flannel-ds-rb6ll 1\/1 Running 1 2h\r\nkube-system kube-proxy-khhwf 1\/1 Running 1 2h\r\nkube-system kube-proxy-l8pbk 1\/1 Running 1 2h\r\nkube-system kube-proxy-zblxq 1\/1 Running 1 2h\r\nkube-system kube-scheduler-sugi-kubernetes110-master01.localdomain 1\/1 Running 1 2h\r\n<\/code><\/pre>\n-o wide \u3042\u308a\u65f6\uff0c\u53ef\u4ee5\u540c\u65f6\u68c0\u67e5\u6b63\u5728\u8fd0\u884c\u7684pod\u6240\u5728\u7684\u8282\u70b9\u548cIP\u5730\u5740\uff0c\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n
[root@sugi-kubernetes110-master01 ~]# kubectl get pods --all-namespaces -o wide\r\nNAMESPACE NAME READY STATUS RESTARTS AGE IP NODE\r\nkube-system etcd-sugi-kubernetes110-master01.localdomain 1\/1 Running 1 2h 192.168.120.220 sugi-kubernetes110-master01.localdomain\r\nkube-system kube-apiserver-sugi-kubernetes110-master01.localdomain 1\/1 Running 1 2h 192.168.120.220 sugi-kubernetes110-master01.localdomain\r\nkube-system kube-controller-manager-sugi-kubernetes110-master01.localdomain 1\/1 Running 1 2h 192.168.120.220 sugi-kubernetes110-master01.localdomain\r\nkube-system kube-dns-86f4d74b45-bvps2 3\/3 Running 3 2h 10.244.0.3 sugi-kubernetes110-master01.localdomain\r\nkube-system kube-flannel-ds-5tgh7 1\/1 Running 1 2h 192.168.120.224 sugi-kubernetes110-node02.localdomain\r\nkube-system kube-flannel-ds-d92qj 1\/1 Running 1 2h 192.168.120.223 sugi-kubernetes110-node01.localdomain\r\nkube-system kube-flannel-ds-rb6ll 1\/1 Running 1 2h 192.168.120.220 sugi-kubernetes110-master01.localdomain\r\nkube-system kube-proxy-khhwf 1\/1 Running 1 2h 192.168.120.223 sugi-kubernetes110-node01.localdomain\r\nkube-system kube-proxy-l8pbk 1\/1 Running 1 2h 192.168.120.224 sugi-kubernetes110-node02.localdomain\r\nkube-system kube-proxy-zblxq 1\/1 Running 1 2h 192.168.120.220 sugi-kubernetes110-master01.localdomain\r\nkube-system kube-scheduler-sugi-kubernetes110-master01.localdomain 1\/1 Running 1 2h 192.168.120.220 sugi-kubernetes110-master01.localdomain\r\n<\/code><\/pre>\n\u8c46\u835a<\/h1>\n
Kubernetes\u3067\u306f\u30011\u500b or \u8907\u6570\u306e\u30b3\u30f3\u30c6\u30ca\u306e\u96c6\u307e\u308a\u3092Pod\u3068\u547c\u3093\u3067\u3044\u307e\u3059\u3002
\nPod\u306e\u4e2d\u306e\u30b3\u30f3\u30c6\u30ca\u306f\u3001\u540c\u6642\u306b\u30c7\u30d7\u30ed\u30a4\u3055\u308c\u307e\u3059\u3002
\n\u958b\u59cb\u3001\u505c\u6b62\u3001\u30ec\u30d7\u30ea\u30ab\u306fPod\u5358\u4f4d\u3067\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n
Pod\u7684YAML\u5b9a\u4e49<\/h2>\n
YAML\u30d5\u30a1\u30a4\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001Nginx\u3092\u4f7f\u7528\u3057\u305f\u30b7\u30f3\u30d7\u30eb\u306a\u5b9a\u7fa9\u3092\u3057\u307e\u3059\u3002
\nDockerHub\u304b\u3089\u3001nginx\u30a4\u30e1\u30fc\u30b8\u306e\u30d0\u30fc\u30b8\u30e7\u30f3<\/p>\n
cat <<'EOF' > \/root\/kube_yaml\/101_walkthrough\/pod-nginx.yaml\r\napiVersion: v1\r\nkind: Pod\r\nmetadata:\r\n name: nginx\r\nspec:\r\n containers:\r\n - name: nginx\r\n image: nginx:1.7.9\r\n ports:\r\n - containerPort: 80\r\nEOF\r\n<\/code><\/pre>\nPod\u7ba1\u7406 (pinyin:<\/h2>\n
\u4e0a\u8a18\u3067\u5b9a\u7fa9\u3057\u305fYAML\u30d5\u30a1\u30a4\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001Pod\u3092\u30c7\u30d7\u30ed\u30a4\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n
[root@sugi-kubernetes110-master01 101_walkthrough]# kubectl create -f \/root\/kube_yaml\/101_walkthrough\/pod-nginx.yaml\r\npod \"nginx\" created\r\n<\/code><\/pre>\nkubectl run \u3067\u3082\u540c\u69d8\u306e\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u304c\u3001YAML\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3067\u3001git\u306a\u3069\u3067\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u304c\u51fa\u6765\u308b\u305f\u3081\u3001\u672c\u756a\u74b0\u5883\u3067\u306fYAML\u3067\u5b9f\u884c\u3059\u308b\u306e\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n
pod\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u307e\u3059
\nSTATUS\u304cContainerCreating\u3068\u306a\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u5b8c\u4e86\u307e\u3067\u5f85\u6a5f\u3057\u307e\u3059\u3002<\/p>\n
[root@sugi-kubernetes110-master01 101_walkthrough]# kubectl get pods -o wide\r\nNAME READY STATUS RESTARTS AGE IP NODE\r\nnginx 0\/1 ContainerCreating 0 19s <none> sugi-kubernetes110-node02.localdomain\r\n<\/code><\/pre>\n\u72b6\u6001\u5df2\u66f4\u6539\u4e3a\u8fd0\u884c\u4e2d<\/p>\n
[root@sugi-kubernetes110-master01 101_walkthrough]# kubectl get pods -o wide\r\nNAME READY STATUS RESTARTS AGE IP NODE\r\nnginx 1\/1 Running 0 1m 10.244.2.2 sugi-kubernetes110-node02.localdomain\r\n<\/code><\/pre>\n\u74b0\u5883\u306b\u3088\u308a\u307e\u3059\u304c\u3001\u307b\u3068\u3093\u3069\u306e\u74b0\u5883\u3067\u306f\u3001Pod\u306eIP\u30a2\u30c9\u30ec\u30b9(\u4e0a\u8a18\u306e\u4f8b\u3060\u306810.244.2.2)\u306b\u306f\u3001Kubernetes\u30af\u30e9\u30b9\u30bf\u306e\u5916\u90e8\u304b\u3089\u30a2\u30af\u30bb\u30b9\u304c\u51fa\u6765\u307e\u305b\u3093\u3002
\n\u30c7\u30d7\u30ed\u30a4\u3057\u305fPod\u304c\u7a3c\u50cd\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u30c6\u30b9\u30c8\u3059\u308b\u7c21\u5358\u306a\u65b9\u6cd5\u306f\u3001busybox\u30b3\u30de\u30f3\u30c9\u304c\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30b3\u30f3\u30c6\u30ca\u30a4\u30e1\u30fc\u30b8\u3092\u30c7\u30d7\u30ed\u30a4\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n
BusyBox\u30a4\u30e1\u30fc\u30b8\u3092\u30c7\u30d7\u30ed\u30a4\u3068\u540c\u6642\u306b\u3001BusyBox\u30b3\u30f3\u30c6\u30ca\u5185\u306eshell\u306b\u63a5\u7d9a\u3057\u307e\u3059
\n\u305d\u306e\u969b\u306b\u3001env\u3067BusyBox\u30b3\u30f3\u30c6\u30ca\u5185\u306e\u74b0\u5883\u5909\u6570\u3092\u6307\u5b9a\u3057\u3066\u3001nginx\u306eClusterIP\u3092\u6e21\u3057\u3066\u3044\u307e\u3059<\/p>\n
[root@sugi-kubernetes110-master01 101_walkthrough]# kubectl run busybox --image=busybox --restart=Never --tty -i --generator=run-pod\/v1 --env \"POD_IP=$(kubectl get pod nginx -o go-template='{{.status.podIP}}')\"\r\nIf you don't see a command prompt, try pressing enter.\r\n\/ # ps aux\r\nPID USER TIME COMMAND\r\n 1 root 0:00 sh\r\n 5 root 0:00 ps aux\r\n\/ # \r\n\/ # \r\n\/ # \r\n\/ # ip a\r\n1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1\r\n link\/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\r\n inet 127.0.0.1\/8 scope host lo\r\n valid_lft forever preferred_lft forever\r\n inet6 ::1\/128 scope host \r\n valid_lft forever preferred_lft forever\r\n3: eth0@if8: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1450 qdisc noqueue \r\n link\/ether 0a:58:0a:f4:01:04 brd ff:ff:ff:ff:ff:ff\r\n inet 10.244.1.4\/24 scope global eth0\r\n valid_lft forever preferred_lft forever\r\n inet6 fe80::2c8b:15ff:fee8:1bbb\/64 scope link \r\n valid_lft forever preferred_lft forever\r\n\/ # \r\n\/ # \r\n\/ # \r\n\/ # ip r\r\ndefault via 10.244.1.1 dev eth0 \r\n10.244.0.0\/16 via 10.244.1.1 dev eth0 \r\n10.244.1.0\/24 dev eth0 scope link src 10.244.1.4 \r\n\/ # \r\n\/ # \r\n\/ # \r\n\/ # echo $POD_IP\r\n10.244.2.2\r\n<\/code><\/pre>\n\u5728BusyBox\u5bb9\u5668\u4e2d\uff0c\u4f7f\u7528wget\u547d\u4ee4\u5bf9nginx\u8fdb\u884cHTTP\u8bbf\u95ee\u3002
\n\u7ed3\u679c\u663e\u793anginx\u7684\u6b22\u8fce\u9875\u9762\u5df2\u8fd4\u56de\uff0c\u786e\u8ba4\u5176\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n
\/ # wget -qO- http:\/\/$POD_IP\r\n<!DOCTYPE html>\r\n<html>\r\n<head>\r\n<title>Welcome to nginx!<\/title>\r\n<style>\r\n body {\r\n width: 35em;\r\n margin: 0 auto;\r\n font-family: Tahoma, Verdana, Arial, sans-serif;\r\n }\r\n<\/style>\r\n<\/head>\r\n<body>\r\n<h1>Welcome to nginx!<\/h1>\r\n<p>If you see this page, the nginx web server is successfully installed and\r\nworking. Further configuration is required.<\/p>\r\n\r\n<p>For online documentation and support please refer to\r\n<a href=\"http:\/\/nginx.org\/\">nginx.org<\/a>.<br\/>\r\nCommercial support is available at\r\n<a href=\"http:\/\/nginx.com\/\">nginx.com<\/a>.<\/p>\r\n\r\n<p><em>Thank you for using nginx.<\/em><\/p>\r\n<\/body>\r\n<\/html>\r\n\/ # \r\n\/ # \r\n\/ # \r\n\/ # exit\r\n[root@sugi-kubernetes110-master01 101_walkthrough]# \r\n<\/code><\/pre>\n\u5220\u9664BusyBoxPod<\/p>\n
[root@sugi-kubernetes110-master01 101_walkthrough]# kubectl get pods\r\nNAME READY STATUS RESTARTS AGE\r\nbusybox 0\/1 Completed 0 3m\r\nnginx 1\/1 Running 0 56m\r\n[root@sugi-kubernetes110-master01 101_walkthrough]# \r\n[root@sugi-kubernetes110-master01 101_walkthrough]# kubectl delete pod busybox\r\npod \"busybox\" deleted\r\n[root@sugi-kubernetes110-master01 101_walkthrough]# \r\n<\/code><\/pre>\n\u5220\u9664nginxPod\u3002<\/p>\n
kubectl delete pod nginx\r\n<\/code><\/pre>\n\u6570\u91cf<\/h2>\n
Pod\u5185\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306f\u3001Pod\u304c\u7a3c\u50cd\u3057\u3066\u3044\u308b\u9593\u3060\u3051\u30c7\u30fc\u30bf\u3092\u4fdd\u6301\u3057\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001Pod\u306e\u518d\u8d77\u52d5\u3084\u969c\u5bb3\u304c\u767a\u751f\u3057\u305f\u969b\u306b\u306f\u3001Pod\u5185\u306e\u30c7\u30fc\u30bf\u306f\u6d88\u3048\u307e\u3059\u3002
\n\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u6c38\u7d9a\u7684\u306a\u30c7\u30fc\u30bf\u3092\u4fdd\u7ba1\u3057\u305f\u3044\u5834\u5408\u306f\u3001persistent volume \u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001Pod\u306e\u5916\u90e8\u306b\u30c7\u30fc\u30bf\u3092\u4fdd\u7ba1\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n
\u6b21\u306e\u4f8b\u3067\u306f\u3001redisPod\u3092\u30c7\u30d7\u30ed\u30a4\u3059\u308b\u969b\u306b\u3001\u4ee5\u4e0b\u306e\u5185\u5bb9\u3092\u542b\u3081\u3066\u3044\u307e\u3059<\/p>\n
\n- \n
volume\u306e\u5b9a\u7fa9 (Pod\u306e\u30c7\u30d7\u30ed\u30a4\u5148Node\u306e\u30ed\u30fc\u30ab\u30eb\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u7528\u3002\u7570\u306a\u308bPod\u306b\u79fb\u52d5\u3059\u308b\u3068\u30c7\u30fc\u30bf\u304c\u6d88\u3048\u308b\u3002\u30c6\u30b9\u30c8\u7528\u306b\u4f7f\u7528)<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\u5b9a\u7fa9\u3057\u305fvolume\u3092\u30b3\u30f3\u30c6\u30ca\u5185\u306e \/data\/redis \u306b\u30de\u30a6\u30f3\u30c8<\/ul>\n
cat <<'EOF' > \/root\/kube_yaml\/101_walkthrough\/pod-redis.yaml\r\napiVersion: v1\r\nkind: Pod\r\nmetadata:\r\n name: redis\r\nspec:\r\n containers:\r\n - name: redis\r\n image: redis\r\n volumeMounts:\r\n - name: redis-persistent-storage\r\n mountPath: \/data\/redis\r\n volumes:\r\n - name: redis-persistent-storage\r\n emptyDir: {}\r\nEOF\r\n<\/code><\/pre>\n\u90e8\u7f72\/\u90e8\u7f72\u5de5\u4f5c<\/p>\n
[root@sugi-kubernetes110-master01 101_walkthrough]# kubectl create -f \/root\/kube_yaml\/101_walkthrough\/pod-redis.yaml\r\npod \"redis\" created\r\n<\/code><\/pre>\n\u6211\u4f1a\u786e\u8ba4Pod\u7684\u72b6\u6001\u3002<\/p>\n
[root@sugi-kubernetes110-master01 101_walkthrough]# kubectl get pods -o wide\r\nNAME READY STATUS RESTARTS AGE IP NODE\r\nredis 1\/1 Running 0 4m 10.244.2.3 sugi-kubernetes110-node02.localdomain\r\n<\/code><\/pre>\n\u6211\u4f1a\u67e5\u770bPod\u7684\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n
[root@sugi-kubernetes110-master01 101_walkthrough]# kubectl describe pods redis\r\nName: redis\r\nNamespace: default\r\nNode: sugi-kubernetes110-node02.localdomain\/192.168.120.224\r\nStart Time: Sun, 29 Apr 2018 01:32:58 +0900\r\nLabels: <none>\r\nAnnotations: <none>\r\nStatus: Running\r\nIP: 10.244.2.3\r\nContainers:\r\n redis:\r\n Container ID: docker:\/\/35605f94178e807c3e14a0a89f87a54dcf439d65b4d7f06c5284cbfc9fc69c4d\r\n Image: redis\r\n Image ID: docker-pullable:\/\/docker.io\/redis@sha256:2a10443dced488731f0a3ed12e442c230d39b526f95ecb8e280cd1596705e822\r\n Port: <none>\r\n Host Port: <none>\r\n State: Running\r\n Started: Sun, 29 Apr 2018 01:33:39 +0900\r\n Ready: True\r\n Restart Count: 0\r\n Environment: <none>\r\n Mounts:\r\n \/data\/redis from redis-persistent-storage (rw)\r\n \/var\/run\/secrets\/kubernetes.io\/serviceaccount from default-token-q65hj (ro)\r\nConditions:\r\n Type Status\r\n Initialized True \r\n Ready True \r\n PodScheduled True \r\nVolumes:\r\n redis-persistent-storage:\r\n Type: EmptyDir (a temporary directory that shares a pod's lifetime)\r\n Medium: \r\n default-token-q65hj:\r\n Type: Secret (a volume populated by a Secret)\r\n SecretName: default-token-q65hj\r\n Optional: false\r\nQoS Class: BestEffort\r\nNode-Selectors: <none>\r\nTolerations: node.kubernetes.io\/not-ready:NoExecute for 300s\r\n node.kubernetes.io\/unreachable:NoExecute for 300s\r\nEvents:\r\n Type Reason Age From Message\r\n ---- ------ ---- ---- -------\r\n Normal Scheduled 48s default-scheduler Successfully assigned redis to sugi-kubernetes110-node02.localdomain\r\n Normal SuccessfulMountVolume 48s kubelet, sugi-kubernetes110-node02.localdomain MountVolume.SetUp succeeded for volume \"redis-persistent-storage\"\r\n Normal SuccessfulMountVolume 48s kubelet, sugi-kubernetes110-node02.localdomain MountVolume.SetUp succeeded for volume \"default-token-q65hj\"\r\n Normal Pulling 47s kubelet, sugi-kubernetes110-node02.localdomain pulling image \"redis\"\r\n Normal Pulled 7s kubelet, sugi-kubernetes110-node02.localdomain Successfully pulled image \"redis\"\r\n Normal Created 7s kubelet, sugi-kubernetes110-node02.localdomain Created container\r\n Normal Started 7s kubelet, sugi-kubernetes110-node02.localdomain Started container\r\n<\/code><\/pre>\nredisPod\u306e\u30c7\u30d7\u30ed\u30a4\u5148\u306eNode\u3067\u3042\u308b\u300csugi-kubernetes110-node02\u300d\u306e\u3001\u30ed\u30fc\u30ab\u30eb\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u304cvolume\u3068\u3057\u3066\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059
\n\u300csugi-kubernetes110-node02\u300d\u3067docker ps \u3092\u5b9f\u884c\u3057\u3001\u30b3\u30f3\u30c6\u30ca\u4e00\u89a7\u3092\u78ba\u8a8d<\/p>\n
[root@sugi-kubernetes110-node02 redis]# docker ps\r\nCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES\r\n35605f94178e docker.io\/redis@sha256:2a10443dced488731f0a3ed12e442c230d39b526f95ecb8e280cd1596705e822 \"docker-entrypoint...\" 8 minutes ago Up 8 minutes k8s_redis_redis_default_cf58a748-4b01-11e8-baee-0050569817ee_0\r\n9983e98b0149 k8s.gcr.io\/pause-amd64:3.1 \"\/pause\" 8 minutes ago Up 8 minutes k8s_POD_redis_default_cf58a748-4b01-11e8-baee-0050569817ee_0\r\n8b275f7c03c3 2b736d06ca4c \"\/opt\/bin\/flanneld...\" 2 hours ago Up 2 hours k8s_kube-flannel_kube-flannel-ds-5tgh7_kube-system_4679fc06-4ae3-11e8-bbe9-0050569817ee_1\r\n13b5e5f69d69 77019aa0531a \"\/usr\/local\/bin\/ku...\" 2 hours ago Up 2 hours k8s_kube-proxy_kube-proxy-l8pbk_kube-system_4679a0d6-4ae3-11e8-bbe9-0050569817ee_1\r\nae9b7156a62a k8s.gcr.io\/pause-amd64:3.1 \"\/pause\" 2 hours ago Up 2 hours k8s_POD_kube-flannel-ds-5tgh7_kube-system_4679fc06-4ae3-11e8-bbe9-0050569817ee_1\r\n5ca34711fe92 k8s.gcr.io\/pause-amd64:3.1 \"\/pause\" 2 hours ago Up 2 hours k8s_POD_kube-proxy-l8pbk_kube-system_4679a0d6-4ae3-11e8-bbe9-0050569817ee_1\r\n<\/code><\/pre>\n\u8bf7\u7528docker inspect\u547d\u4ee4\u6765\u786e\u8ba4CONTAINER ID\u300c35605f94178e\u300d\u5bf9\u5e94\u7684\u5bb9\u5668\u3002\u901a\u8fc7\u4f7f\u7528\u8be5\u547d\u4ee4\uff0c\u60a8\u53ef\u4ee5\u67e5\u770b\u5bb9\u5668\u6240\u6302\u8f7d\u7684\u8def\u5f84\u3002<\/p>\n
[root@sugi-kubernetes110-node02 redis]# docker inspect 35605f94178e | grep Mounts -A43\r\n \"Mounts\": [\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/cf58a748-4b01-11e8-baee-0050569817ee\/volumes\/kubernetes.io~secret\/default-token-q65hj\",\r\n \"Destination\": \"\/var\/run\/secrets\/kubernetes.io\/serviceaccount\",\r\n \"Mode\": \"ro,rslave\",\r\n \"RW\": false,\r\n \"Propagation\": \"rslave\"\r\n },\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/cf58a748-4b01-11e8-baee-0050569817ee\/etc-hosts\",\r\n \"Destination\": \"\/etc\/hosts\",\r\n \"Mode\": \"\",\r\n \"RW\": true,\r\n \"Propagation\": \"rprivate\"\r\n },\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/cf58a748-4b01-11e8-baee-0050569817ee\/containers\/redis\/f4b441cf\",\r\n \"Destination\": \"\/dev\/termination-log\",\r\n \"Mode\": \"\",\r\n \"RW\": true,\r\n \"Propagation\": \"rprivate\"\r\n },\r\n {\r\n \"Type\": \"volume\",\r\n \"Name\": \"33ef4ea6079e4318f6086f878bc88d3c00150e73c3bb05166bb6634cde2aa023\",\r\n \"Source\": \"\/var\/lib\/docker\/volumes\/33ef4ea6079e4318f6086f878bc88d3c00150e73c3bb05166bb6634cde2aa023\/_data\",\u3000\u3000\u3000\u3000<------------------------------- \u3053\u3053\u3092\u78ba\u8a8d\r\n \"Destination\": \"\/data\",\r\n \"Driver\": \"local\",\r\n \"Mode\": \"\",\r\n \"RW\": true,\r\n \"Propagation\": \"\"\r\n },\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/cf58a748-4b01-11e8-baee-0050569817ee\/volumes\/kubernetes.io~empty-dir\/redis-persistent-storage\",\r\n \"Destination\": \"\/data\/redis\",\r\n \"Mode\": \"rslave\",\r\n \"RW\": true,\r\n \"Propagation\": \"rslave\"\r\n }\r\n ],\r\n<\/code><\/pre>\n\u901a\u8fc7\u300csugi-kubernetes110-node02\u300d\uff0c\u68c0\u67e5\u6e90\u76ee\u5f55\u3002<\/p>\n
[root@sugi-kubernetes110-node02 redis]# ls -la \/var\/lib\/docker\/volumes\/33ef4ea6079e4318f6086f878bc88d3c00150e73c3bb05166bb6634cde2aa023\/_data\/\r\ntotal 0\r\ndrwxr-xr-x 3 systemd-bus-proxy ssh_keys 19 Apr 29 01:33 .\r\ndrwxr-xr-x 3 root root 19 Apr 29 01:33 ..\r\ndrwxr-xr-x 2 root root 6 Apr 29 01:33 redis\r\n\r\n\r\n[root@sugi-kubernetes110-node02 redis]# ls -la \/var\/lib\/docker\/volumes\/33ef4ea6079e4318f6086f878bc88d3c00150e73c3bb05166bb6634cde2aa023\/_data\/redis\/\r\ntotal 0\r\ndrwxr-xr-x 2 root root 6 Apr 29 01:33 .\r\ndrwxr-xr-x 3 systemd-bus-proxy ssh_keys 19 Apr 29 01:33 ..\r\n<\/code><\/pre>\nredis\u30b3\u30f3\u30c6\u30ca\u306eshell\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u307e\u3059<\/p>\n
[root@sugi-kubernetes110-master01 101_walkthrough]# kubectl exec -it redis \/bin\/bash\r\nroot@redis:\/data# \r\n<\/code><\/pre>\n\u786e\u8ba4\/data\u76ee\u5f55\u7684\u6587\u4ef6\u7ed3\u6784\u3002
\n\u4e0e\u5728”sugi-kubernetes110-node02″\u4e0a\u786e\u8ba4\u7684\u7ed3\u6784\u76f8\u4e00\u81f4\u3002<\/p>\n
root@redis:\/data# pwd\r\n\/data\r\nroot@redis:\/data# \r\nroot@redis:\/data# ls -la\r\ntotal 0\r\ndrwxr-xr-x 3 redis redis 19 Apr 28 16:33 .\r\ndrwxr-xr-x 1 root root 17 Apr 28 16:33 ..\r\ndrwxrwxrwx 2 redis root 6 Apr 28 16:32 redis\r\n<\/code><\/pre>\n\u5728\u5bb9\u5668\u4e0a\u521b\u5efa\u4e00\u4e2a\u9002\u5f53\u7684\u6587\u4ef6\u5728\/data\/redis\/\u76ee\u5f55\u4e0b\uff0c\u5e76\u9a8c\u8bc1\u5176\u884c\u4e3a\u3002<\/p>\n
cat <<'EOF' > \/data\/redis\/test.txt\r\ncan you look me?\r\nEOF\r\n<\/code><\/pre>\nvolume\u306b emptyDir\u3092\u6307\u5b9a\u3057\u3066\u3044\u308b\u306e\u3067\u3001Node02\u4e0a\u306b\u306f\u30c7\u30fc\u30bf\u304c\u66f8\u304d\u8fbc\u307e\u308c\u306a\u3044 (\u305d\u3046\u306a\u306e\u304b\u3002\u3053\u3053\u307e\u3067\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3092\u9032\u3081\u3066\u3001\u30c7\u30fc\u30bf\u304c\u51fa\u529b\u3055\u308c\u306a\u3044\u3053\u3068\u306b\u6c17\u304c\u4ed8\u304d\u307e\u3057\u305f)<\/p>\n
[root@sugi-kubernetes110-node02 _data]# pwd\r\n\/var\/lib\/docker\/volumes\/33ef4ea6079e4318f6086f878bc88d3c00150e73c3bb05166bb6634cde2aa023\/_data\r\n[root@sugi-kubernetes110-node02 _data]# \r\n[root@sugi-kubernetes110-node02 _data]# ls -la redis\/\r\ntotal 0\r\ndrwxr-xr-x 2 root root 6 Apr 29 01:33 .\r\ndrwxr-xr-x 3 systemd-bus-proxy ssh_keys 19 Apr 29 01:33 ..\r\n<\/code><\/pre>\n\u591a\u4e2a\u5bb9\u5668<\/h2>\n
Pod\u5185\u306b\u8907\u6570\u30b3\u30f3\u30c6\u30ca\u3092\u542b\u3081\u305f\u5f62\u5f0f\u306b\u3057\u3066\u3001volume\u304c\u5171\u6709\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n
\u4e0b\u9762\u662f\u5982\u4f55\u521b\u5efa\u6e05\u5355\u6587\u4ef6\u7684\u65b9\u5f0f\u3002<\/p>\n
\n- \n
nginx\u30b3\u30f3\u30c6\u30ca\u3068\u3001redis\u30b3\u30f3\u30c6\u30ca\u306e2\u7a2e\u985e\u30921Pod\u306b\u5185\u5305<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
nginx\u30b3\u30f3\u30c6\u30ca\u306e\u300c\/srv\/www\u300d\u3068git-monitor\u30b3\u30f3\u30c6\u30ca\u306e\u300c\/data\u300d\u306fvolume\u3068\u3057\u3066\u5171\u6709\u3055\u308c\u3066\u3044\u308b<\/ul>\n
cat <<'EOF' > \/root\/kube_yaml\/101_walkthrough\/pod-multiple.yaml\r\napiVersion: v1\r\nkind: Pod\r\nmetadata:\r\n name: www\r\nspec:\r\n containers:\r\n - name: nginx\r\n image: nginx:1.7.9\r\n volumeMounts:\r\n - mountPath: \/srv\/www\r\n name: www-data\r\n readOnly: true\r\n - name: redis\r\n image: redis\r\n env:\r\n - name: GIT_REPO\r\n value: http:\/\/github.com\/some\/repo.git\r\n volumeMounts:\r\n - mountPath: \/data\r\n name: www-data\r\n volumes:\r\n - name: www-data\r\n emptyDir: {}\r\nEOF\r\n<\/code><\/pre>\n\u90e8\u7f72<\/p>\n
[root@sugi-kubernetes110-master01 101_walkthrough]# kubectl create -f \/root\/kube_yaml\/101_walkthrough\/pod-multiple.yaml\r\npod \"www\" created\r\n<\/code><\/pre>\n\u786e\u8ba4\u72b6\u6001<\/p>\n
[root@sugi-kubernetes110-master01 101_walkthrough]# kubectl get pods -o wide\r\nNAME READY STATUS RESTARTS AGE IP NODE\r\nwww 0\/2 ContainerCreating 0 10s <none> sugi-kubernetes110-node01.localdomain\r\n<\/code><\/pre>\n\u5728\u90e8\u7f72\u5148\u7684Node\u4e0a\u4f7f\u7528Docker Inspect\u8fdb\u884c\u64cd\u4f5c\uff0c\u786e\u8ba4\u5df2\u6302\u8f7d\u7684\u76ee\u5f55\u3002<\/p>\n
[root@sugi-kubernetes110-node01 ~]# docker inspect 9e4add3d6de2 | grep Mounts -A43\r\n \"Mounts\": [\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/etc-hosts\",\r\n \"Destination\": \"\/etc\/hosts\",\r\n \"Mode\": \"\",\r\n \"RW\": true,\r\n \"Propagation\": \"rprivate\"\r\n },\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/containers\/redis\/83241a20\",\r\n \"Destination\": \"\/dev\/termination-log\",\r\n \"Mode\": \"\",\r\n \"RW\": true,\r\n \"Propagation\": \"rprivate\"\r\n },\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/volumes\/kubernetes.io~empty-dir\/www-data\", <---------------------------- \u3053\u3053\u3092\u78ba\u8a8d\r\n \"Destination\": \"\/data\",\r\n \"Mode\": \"rslave\",\r\n \"RW\": true,\r\n \"Propagation\": \"rslave\"\r\n },\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/volumes\/kubernetes.io~secret\/default-token-q65hj\",\r\n \"Destination\": \"\/var\/run\/secrets\/kubernetes.io\/serviceaccount\",\r\n \"Mode\": \"ro,rslave\",\r\n \"RW\": false,\r\n \"Propagation\": \"rslave\"\r\n }\r\n ],\r\n<\/code><\/pre>\n\u73b0\u5728\u662f\u4e00\u7247\u7a7a\u767d\u3002<\/p>\n
[root@sugi-kubernetes110-node01 www-data]# pwd\r\n\/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/volumes\/kubernetes.io~empty-dir\/www-data\r\n[root@sugi-kubernetes110-node01 www-data]# \r\n[root@sugi-kubernetes110-node01 www-data]# ls -la\r\ntotal 0\r\ndrwxrwxrwx 2 systemd-bus-proxy root 6 Apr 29 02:14 .\r\ndrwxr-xr-x 3 root root 22 Apr 29 02:14 ..\r\n<\/code><\/pre>\n\u6211\u786e\u8ba4\u4e86wwwPod\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u53d1\u73b0\u5176\u4e2d\u5305\u542b\u4e86\u4e24\u4e2a\u5bb9\u5668\u3002<\/p>\n
[root@sugi-kubernetes110-master01 101_walkthrough]# kubectl describe pods www\r\nName: www\r\nNamespace: default\r\nNode: sugi-kubernetes110-node01.localdomain\/192.168.120.223\r\nStart Time: Sun, 29 Apr 2018 02:14:20 +0900\r\nLabels: <none>\r\nAnnotations: <none>\r\nStatus: Running\r\nIP: 10.244.1.6\r\nContainers:\r\n nginx:\r\n Container ID: docker:\/\/389b82c1dfd62513c5e78344c0f38b79349bec873bf7e52c09baf44de381401d\r\n Image: nginx:1.7.9\r\n Image ID: docker-pullable:\/\/docker.io\/nginx@sha256:e3456c851a152494c3e4ff5fcc26f240206abac0c9d794affb40e0714846c451\r\n Port: <none>\r\n Host Port: <none>\r\n State: Running\r\n Started: Sun, 29 Apr 2018 02:14:47 +0900\r\n Ready: True\r\n Restart Count: 0\r\n Environment: <none>\r\n Mounts:\r\n \/srv\/www from www-data (ro)\r\n \/var\/run\/secrets\/kubernetes.io\/serviceaccount from default-token-q65hj (ro)\r\n redis:\r\n Container ID: docker:\/\/9e4add3d6de2e53cc2b06a750f91082fb0547e68fb90445e2cbd80d6d58dba9d\r\n Image: redis\r\n Image ID: docker-pullable:\/\/docker.io\/redis@sha256:2a10443dced488731f0a3ed12e442c230d39b526f95ecb8e280cd1596705e822\r\n Port: <none>\r\n Host Port: <none>\r\n State: Running\r\n Started: Sun, 29 Apr 2018 02:15:13 +0900\r\n Ready: True\r\n Restart Count: 0\r\n Environment:\r\n GIT_REPO: http:\/\/github.com\/some\/repo.git\r\n Mounts:\r\n \/data from www-data (rw)\r\n \/var\/run\/secrets\/kubernetes.io\/serviceaccount from default-token-q65hj (ro)\r\nConditions:\r\n Type Status\r\n Initialized True \r\n Ready True \r\n PodScheduled True \r\nVolumes:\r\n www-data:\r\n Type: EmptyDir (a temporary directory that shares a pod's lifetime)\r\n Medium: \r\n default-token-q65hj:\r\n Type: Secret (a volume populated by a Secret)\r\n SecretName: default-token-q65hj\r\n Optional: false\r\nQoS Class: BestEffort\r\nNode-Selectors: <none>\r\nTolerations: node.kubernetes.io\/not-ready:NoExecute for 300s\r\n node.kubernetes.io\/unreachable:NoExecute for 300s\r\nEvents:\r\n Type Reason Age From Message\r\n ---- ------ ---- ---- -------\r\n Normal Scheduled 8m default-scheduler Successfully assigned www to sugi-kubernetes110-node01.localdomain\r\n Normal SuccessfulMountVolume 8m kubelet, sugi-kubernetes110-node01.localdomain MountVolume.SetUp succeeded for volume \"www-data\"\r\n Normal SuccessfulMountVolume 8m kubelet, sugi-kubernetes110-node01.localdomain MountVolume.SetUp succeeded for volume \"default-token-q65hj\"\r\n Normal Pulling 8m kubelet, sugi-kubernetes110-node01.localdomain pulling image \"nginx:1.7.9\"\r\n Normal Pulled 8m kubelet, sugi-kubernetes110-node01.localdomain Successfully pulled image \"nginx:1.7.9\"\r\n Normal Created 8m kubelet, sugi-kubernetes110-node01.localdomain Created container\r\n Normal Started 8m kubelet, sugi-kubernetes110-node01.localdomain Started container\r\n Normal Pulling 8m kubelet, sugi-kubernetes110-node01.localdomain pulling image \"redis\"\r\n Normal Pulled 7m kubelet, sugi-kubernetes110-node01.localdomain Successfully pulled image \"redis\"\r\n Normal Created 7m kubelet, sugi-kubernetes110-node01.localdomain Created container\r\n Normal Started 7m kubelet, sugi-kubernetes110-node01.localdomain Started container\r\n<\/code><\/pre>\n\u767b\u5f55\u5230redis\u5bb9\u5668\u7684shell\u3002
\n\u7531\u4e8ePod\u540d\u4e3a”www”\u7684\u5b58\u5728\u591a\u4e2a\u5bb9\u5668\uff0c\u6240\u4ee5\u4f7f\u7528”-c”\u9009\u9879\u6765\u6307\u5b9a\u5bb9\u5668\u540d\u79f0\u3002<\/p>\n
[root@sugi-kubernetes110-master01 101_walkthrough]# kubectl exec -it www -c redis \/bin\/bash\r\nroot@redis:\/data# \r\n<\/code><\/pre>\n\u5728\u5bb9\u5668\u4e0a\u521b\u5efa\u4e00\u4e2a\u9002\u5f53\u7684\u6587\u4ef6\u5728\/data\/redis\/\u76ee\u5f55\u4e0b\uff0c\u7136\u540e\u8fdb\u884c\u884c\u4e3a\u786e\u8ba4\u3002<\/p>\n
cat <<'EOF' > \/data\/test.txt\r\ncan you look me?\r\nEOF\r\n<\/code><\/pre>\nnginx\u30b3\u30f3\u30c6\u30ca\u306eshell\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u307e\u3059<\/p>\n
[root@sugi-kubernetes110-master01 ~]# kubectl exec -it www -c nginx \/bin\/bash\r\nroot@www:\/# \r\n<\/code><\/pre>\n\u5f53\u68c0\u67e5\u6302\u8f7d\u70b9\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230test.txt\u6587\u4ef6\u5b58\u5728\u4e14\u5df2\u88ab\u5171\u4eab\u3002<\/p>\n
root@www:\/srv\/www# pwd\r\n\/srv\/www\r\nroot@www:\/srv\/www# \r\nroot@www:\/srv\/www# cat test.txt \r\ncan you look me?\r\n<\/code><\/pre>\n\u6211\u4f1a\u5728\u6b63\u5728\u8fd0\u884c\u7684 Pod “sugi-kubernetes110-node01” \u4e0a\u8fdb\u884c\u786e\u8ba4\u3002
\n\u901a\u8fc7\u68c0\u67e5\u4e0a\u65b9\u663e\u793a\u7684 Docker \u8fdb\u7a0b\u7684\u540d\u79f0\uff0c\u6211\u4eec\u53ef\u4ee5\u786e\u5b9a www Pod \u4e2d\u5b58\u5728nginx\u5bb9\u5668\u548credis\u5bb9\u5668\u3002<\/p>\n
[root@sugi-kubernetes110-node01 www-data]# docker ps\r\nCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES\r\n9e4add3d6de2 docker.io\/redis@sha256:2a10443dced488731f0a3ed12e442c230d39b526f95ecb8e280cd1596705e822 \"docker-entrypoint...\" 18 minutes ago Up 18 minutes k8s_redis_www_default_9737fa0b-4b07-11e8-baee-0050569817ee_0\r\n389b82c1dfd6 docker.io\/nginx@sha256:e3456c851a152494c3e4ff5fcc26f240206abac0c9d794affb40e0714846c451 \"nginx -g 'daemon ...\" 19 minutes ago Up 19 minutes k8s_nginx_www_default_9737fa0b-4b07-11e8-baee-0050569817ee_0\r\nea4f9101872b k8s.gcr.io\/pause-amd64:3.1 \"\/pause\" 19 minutes ago Up 19 minutes k8s_POD_www_default_9737fa0b-4b07-11e8-baee-0050569817ee_0\r\nb9d65d4ddb1c 2b736d06ca4c \"\/opt\/bin\/flanneld...\" 3 hours ago Up 3 hours k8s_kube-flannel_kube-flannel-ds-d92qj_kube-system_436dce14-4ae3-11e8-bbe9-0050569817ee_1\r\n5592ed89cbe0 77019aa0531a \"\/usr\/local\/bin\/ku...\" 3 hours ago Up 3 hours k8s_kube-proxy_kube-proxy-khhwf_kube-system_436d9ed6-4ae3-11e8-bbe9-0050569817ee_1\r\n496d9d63cddd k8s.gcr.io\/pause-amd64:3.1 \"\/pause\" 3 hours ago Up 3 hours k8s_POD_kube-flannel-ds-d92qj_kube-system_436dce14-4ae3-11e8-bbe9-0050569817ee_1\r\nfab2fd0c0a3b k8s.gcr.io\/pause-amd64:3.1 \"\/pause\" 3 hours ago Up 3 hours k8s_POD_kube-proxy-khhwf_kube-system_436d9ed6-4ae3-11e8-bbe9-0050569817ee_1\r\n<\/code><\/pre>\ndocker inspect\u3067\u30de\u30a6\u30f3\u30c8\u3057\u3066\u3044\u308bpath\u3092\u78ba\u8a8d\u3057\u307e\u3059
\nredis\u30b3\u30f3\u30c6\u30ca<\/p>\n
[root@sugi-kubernetes110-node01 www-data]# docker inspect k8s_redis_www_default_9737fa0b-4b07-11e8-baee-0050569817ee_0 | grep Mounts -A33\r\n \"Mounts\": [\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/volumes\/kubernetes.io~empty-dir\/www-data\",\r\n \"Destination\": \"\/data\",\r\n \"Mode\": \"rslave\",\r\n \"RW\": true,\r\n \"Propagation\": \"rslave\"\r\n },\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/volumes\/kubernetes.io~secret\/default-token-q65hj\",\r\n \"Destination\": \"\/var\/run\/secrets\/kubernetes.io\/serviceaccount\",\r\n \"Mode\": \"ro,rslave\",\r\n \"RW\": false,\r\n \"Propagation\": \"rslave\"\r\n },\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/etc-hosts\",\r\n \"Destination\": \"\/etc\/hosts\",\r\n \"Mode\": \"\",\r\n \"RW\": true,\r\n \"Propagation\": \"rprivate\"\r\n },\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/containers\/redis\/83241a20\",\r\n \"Destination\": \"\/dev\/termination-log\",\r\n \"Mode\": \"\",\r\n \"RW\": true,\r\n \"Propagation\": \"rprivate\"\r\n }\r\n ],\r\n<\/code><\/pre>\nnginx\u30b3\u30f3\u30c6\u30ca<\/p>\n
[root@sugi-kubernetes110-node01 www-data]# docker inspect k8s_nginx_www_default_9737fa0b-4b07-11e8-baee-0050569817ee_0 | grep Mounts -A45\r\n \"Mounts\": [\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/volumes\/kubernetes.io~empty-dir\/www-data\",\r\n \"Destination\": \"\/srv\/www\",\r\n \"Mode\": \"ro,rslave\",\r\n \"RW\": false,\r\n \"Propagation\": \"rslave\"\r\n },\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/volumes\/kubernetes.io~secret\/default-token-q65hj\",\r\n \"Destination\": \"\/var\/run\/secrets\/kubernetes.io\/serviceaccount\",\r\n \"Mode\": \"ro,rslave\",\r\n \"RW\": false,\r\n \"Propagation\": \"rslave\"\r\n },\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/etc-hosts\",\r\n \"Destination\": \"\/etc\/hosts\",\r\n \"Mode\": \"\",\r\n \"RW\": true,\r\n \"Propagation\": \"rprivate\"\r\n },\r\n {\r\n \"Type\": \"bind\",\r\n \"Source\": \"\/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/containers\/nginx\/7b84551e\",\r\n \"Destination\": \"\/dev\/termination-log\",\r\n \"Mode\": \"\",\r\n \"RW\": true,\r\n \"Propagation\": \"rprivate\"\r\n },\r\n {\r\n \"Type\": \"volume\",\r\n \"Name\": \"cc23bcbef53fa0551005cf23cd104a133571c1f72e982276b8193c98be10d121\",\r\n \"Source\": \"\/var\/lib\/docker\/volumes\/cc23bcbef53fa0551005cf23cd104a133571c1f72e982276b8193c98be10d121\/_data\",\r\n \"Destination\": \"\/var\/cache\/nginx\",\r\n \"Driver\": \"local\",\r\n \"Mode\": \"\",\r\n \"RW\": true,\r\n \"Propagation\": \"\"\r\n }\r\n ],\r\n<\/code><\/pre>\n\u4e21\u65b9\u306e\u30b3\u30f3\u30c6\u30ca\u304c\u3001Node\u30db\u30b9\u30c8\u5074\u306e\u300c\/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/volumes\/kubernetes.io~empty-dir\/www-data\u300d\u3092\u30de\u30a6\u30f3\u30c8\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002
\n\u307e\u305f\u3001\u30db\u30b9\u30c8\u5074\u3067\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059<\/p>\n
[root@sugi-kubernetes110-node01 www-data]# cat \/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/volumes\/kubernetes.io~empty-dir\/www-data\/test.txt \r\ncan you look me?\r\n[root@sugi-kubernetes110-node01 www-data]# ls -la \/var\/lib\/kubelet\/pods\/9737fa0b-4b07-11e8-baee-0050569817ee\/volumes\/kubernetes.io~empty-dir\/www-data\/\r\ntotal 4\r\ndrwxrwxrwx 2 systemd-bus-proxy root 22 Apr 29 02:31 .\r\ndrwxr-xr-x 3 root root 22 Apr 29 02:14 ..\r\n-rw-r--r-- 1 root root 17 Apr 29 02:31 test.txt\r\n<\/code><\/pre>\n\u8bf7\u63d0\u4f9bURL\u53c2\u8003<\/h1>\n
Kubernetes 101 \u516c\u5f0f\u6559\u7a0b\u9875\u9762
\nhttps:\/\/kubernetes.io\/docs\/user-guide\/walkthrough\/<\/p>\n","protected":false},"excerpt":{"rendered":"
\u306f\u3058\u3081\u306b Kubernetes\u306e\u516c\u5f0f\u30da\u30fc\u30b8\u306b\u3001\u591a\u304f\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u304c\u63b2\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002 Kubernetes\u306e […]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-35920","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n
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