{"id":2682,"date":"2023-03-30T20:51:47","date_gmt":"2023-03-30T12:51:47","guid":{"rendered":"http:\/\/tihar-tech.cn\/?p=2682"},"modified":"2023-03-30T20:57:11","modified_gmt":"2023-03-30T12:57:11","slug":"k8s%e5%92%8cdocker%e7%9a%84%e6%8c%81%e4%b9%85%e5%8c%96%e6%9c%ba%e5%88%b6-%e4%bc%98%e9%9b%85%e5%9c%b0%e4%bd%bf%e7%94%a8%e5%ad%98%e5%82%a8%e7%b3%bb%e7%bb%9f","status":"publish","type":"post","link":"http:\/\/139.196.114.170\/?p=2682","title":{"rendered":"K8S\u548cDocker\u7684\u6301\u4e45\u5316\u673a\u5236 – \u4f18\u96c5\u5730\u4f7f\u7528\u5b58\u50a8\u7cfb\u7edf"},"content":{"rendered":"

Docker\u6301\u4e45\u5377\u548c\u8bfb\u5199\u5c42<\/h2>\n

Docker\u5bb9\u5668\u4e2d\u7684\u6587\u4ef6\u4fdd\u5b58\u5728 \u955c\u50cf\u7684\u8bfb\u5199\u5c42\u4e2d<\/strong> \u6216\u8005 \u6302\u8f7d\u7684\u5b58\u50a8\u7cfb\u7edf\u4e2d<\/strong>
\n\u4ee5\u4e0b\u8bf4\u660eDocker\u4e2d\u5bb9\u5668\u7684\u4fdd\u5b58\u4f4d\u7f6e<\/p>\n

\u5bb9\u5668\u7684\u76ee\u5f55\u6302\u8f7d\u5b9e\u9645\u662f \u5bb9\u5668\u4e2d\u770b\u5230\u7684\u76ee\u5f55<\/strong> \u5bf9\u5e94 \u5b58\u50a8\u7cfb\u7edf\u4e2d\u7684\u771f\u5b9e\u76ee\u5f55<\/strong>
\n\u5373docker inspect\u7ed3\u679c\u4e2d\uff0c\u53ef\u4ee5\u770b\u5230Destination –> Source\u7684\u6620\u5c04<\/p>\n

"Mounts": [\n    {\n        "Type": "volume",\n        "Name": "mysql-volume",\n        "Source": "\/var\/lib\/docker\/volumes\/mysql-volume\/_data",\n        "Destination": "\/var\/lib\/mysql",\n        "Driver": "local",\n        "Mode": "z",\n        "RW": true,\n        "Propagation": ""\n    }\n]<\/code><\/pre>\n
\u6302\u8f7d\u76ee\u5f55\u7684\u5199\u64cd\u4f5c\u5199\u5165\u6301\u4e45\u5377<\/h3>\n
\u521b\u5efa\u6301\u4e45\u5377test-volume<\/p>\n
docker volume create test-volume<\/code><\/pre>\n
\u542f\u52a8\u4e00\u4e2anginx\u5bb9\u5668\uff0c\u5c06\u5bb9\u5668\u7684\/data\u76ee\u5f55\u6302\u8f7d\u5230\u6301\u4e45\u5377\u4e2d<\/p>\n
docker run -d --name nginx-server -v test-volume:\/data -p 80:80 nginx:latest<\/code><\/pre>\n
\u8fdb\u5165\u5bb9\u5668\uff0c\u5206\u522b\u5728\u5bb9\u5668\u4e2d\u7684\/data\u76ee\u5f55\u548c\u6839\u76ee\u5f55\u5199\u5165\u65b0\u6587\u4ef6<\/p>\n
docker exec -it nginx-server \/bin\/bash\ncd \/ && touch not-bound.txt && echo 'not-bound-file' > not-bound.txt\ncd \/data && touch bound.txt && echo 'bound-file' > bound.txt\nexit<\/code><\/pre>\n
\u5220\u9664\u5bb9\u5668\uff0c\u4f7f\u7528\u76f8\u540c\u6302\u8f7d\u8def\u5f84\u91cd\u542f\u65b0\u5bb9\u5668<\/p>\n
docker stop nginx-server && docker rm nginx-server\ndocker run -d --name nginx-server -v test-volume:\/data -p 80:80 nginx:latest<\/code><\/pre>\n
\u53ea\u6709\u6302\u8f7d\u76ee\u5f55\u7684\u5185\u5bb9\u88ab\u4fdd\u5b58\u5728\u6301\u4e45\u5377\u4e2d\uff0c\u5176\u4ed6\u6570\u636e\u968f\u7740\u5bb9\u5668\u5220\u9664\u5747\u4e22\u5931<\/p>\n
cd \/ && cat not-bound.txt\ncd \/data && cat bound.txt<\/code><\/pre>\n
\u67e5\u770bvolume\u5217\u8868<\/p>\n
docker volume ls<\/code><\/pre>\n
\u6e05\u7a7a\u5bb9\u5668\u672a\u6302\u8f7dvolume<\/p>\n
volume docker volume prune<\/code><\/pre>\n
\u5220\u9664volume<\/p>\n
docker volume rm test-volume<\/code><\/pre>\n
\u975e\u6302\u8f7d\u76ee\u5f55\u5199\u64cd\u4f5c\u5199\u5165\u8bfb\u5199\u5c42<\/h3>\n
\u521b\u5efa\u6301\u4e45\u5377test-rw-volume<\/p>\n
docker volume create test-rw-volume<\/code><\/pre>\n
\u542f\u52a8\u4e00\u4e2anginx\u5bb9\u5668\uff0c\u5c06\u5bb9\u5668\u7684\/data\u76ee\u5f55\u6302\u8f7d\u5230\u6301\u4e45\u5377\u4e2d<\/p>\n
docker run --name test-rw-server -d -v test-rw-volume:\/data -p 80:80 nginx:latest<\/code><\/pre>\n
\u8fdb\u5165\u5bb9\u5668\uff0c\u5c06\u6587\u4ef6\u5199\u5728\u975e\u6302\u8f7d\u76ee\u5f55<\/p>\n
docker exec -it test-rw-server \/bin\/bash\ntouch write.txt && echo 'aaa' > write.txt\nexit<\/code><\/pre>\n
\u67e5\u770b\u5bb9\u5668\u7684\u8bfb\u5199\u5c42\u5199\u64cd\u4f5c\u53d8\u5316\u8bb0\u5f55<\/p>\n
docker diff test-rw-server<\/code><\/pre>\n
\u63d0\u4ea4\u955c\u50cf\u540e\uff0c\u91cd\u65b0\u8fd0\u884c\u4e00\u4e2a\u65b0\u5bb9\u5668\uff0c\u53ef\u4ee5\u53d1\u73b0\u5bb9\u5668\u4e2d\u5df2\u7ecf\u5305\u542b\u5199\u5165\u7684\u6587\u4ef6\uff0c\u8bf4\u660e commit\u64cd\u4f5c\u5c06\u5bb9\u5668\u7684\u6240\u6709\u975e\u6302\u8f7d\u76ee\u5f55\u7684\u5199\u64cd\u4f5c\u5199\u5165\u4e86\u955c\u50cf<\/strong><\/p>\n
docker commit docker commit -m "test rw" test-rw-server\ndocker run --name test-rw-restore -d -p 81:80 nginx:latest\ndocker exec -it test-rw-restore \/bin\/bash\ncat write.txt<\/code><\/pre>\n
K8S\u6301\u4e45\u5377\u8be6\u89e3<\/h2>\n
K8S\u53ef\u63a7\u5236\u5bb9\u5668\u542f\u52a8\u65f6\u6301\u4e45\u5377\u7684\u5206\u914d\u548c\u6302\u8f7d\uff0c\u6301\u4e45\u5377\u65b9\u5f0f\u6709\u4ee5\u4e0b\u51e0\u79cd
\nemptydir<\/strong> Pod\u542f\u52a8\u65f6k8s\u5206\u914d\u6302\u8f7d\u70b9\uff0cpod\u505c\u6b62\u65f6\u5377\u5220\u9664\uff0c\u6570\u636e\u4e0d\u4fdd\u7559
\nhostpath<\/strong> \u6302\u8f7d\u5728\u672c\u673a\u7684\u56fa\u5b9a\u76ee\u5f55\u4e0a\uff0c\u4e0e\u4e3b\u673a\u7d27\u8026\u5408\uff0c\u4e3b\u673a\u5b95\u673a\u65f6\u6570\u636e\u65e0\u6cd5\u8bbf\u95ee
\n\u5b58\u50a8\u7cfb\u7edf<\/strong> \u5982\u4e91\u5382\u5546\u63d0\u4f9b\u7684\u4e91\u5b58\u50a8\uff0c\u81ea\u884c\u642d\u5efa\u7684NFS\u7cfb\u7edf\u7b49
\nPV\/PVC<\/strong> PVC\u58f0\u660e\u8bbf\u95ee\u7684\u5bb9\u91cf\u548c\u6743\u9650\uff0cPV\u8d1f\u8d23\u771f\u5b9e\u6302\u8f7d<\/p>\n
NFS\u7684\u5b89\u88c5\u3001\u6302\u8f7d\u548c\u4f7f\u7528<\/h3>\n
\u5728\u5c06\u8981\u5171\u4eab\u5b58\u50a8\u7684\u4e3b\u673a192.168.0.53\u4e0a\u5b89\u88c5\u5e76\u542f\u52a8nfs<\/p>\n
apt-get install -y nfs-kernel-server nfs-common rpcbind\nsudo systemctl start nfs-kernel-server.service<\/code><\/pre>\n
\u914d\u7f6e\u5171\u4eab\u5b58\u50a8\u7cfb\u7edf\u5b9e\u9645\u6307\u5411\u7684\u7684\u672c\u673a\u8def\u5f84\u3001\u5141\u8bb8\u6302\u8f7d\u7684\u5176\u4ed6\u4e3b\u673a\u5730\u5740\u7f51\u6bb5\u3001\u6570\u636e\u843d\u76d8\u7b56\u7565\uff1a\u5199\u5185\u5b58\u540c\u6b65\u5199\u786c\u76d8\u3001\u4ee5root\u8eab\u4efd\u8bbf\u95ee\u3001\u5141\u8bb8\u5927\u4e8e1024\u7aef\u53e3\u8bbf\u95ee\uff08insecure\u89e3\u51b3\u62a5\u9519 MountVolume.SetUp failed for volume "wp-pv" : mount failed: exit status 32\uff09\u91cd\u542fnfs\u751f\u6548<\/p>\n
vim \/etc\/exports\n\/nfsDir  192.168.*.*(rw,sync,no_root_squash,insecure)\nsudo systemctl restart nfs-server<\/code><\/pre>\n
\u67e5\u770b\u542f\u52a8\u540e\u7684nfs\u72b6\u6001<\/p>\n
sudo systemctl status nfs-server\nshowmount -e<\/code><\/pre>\n
\u6d4b\u8bd5\u67e5\u770b\u6302\u8f7d\uff0c\u7ed3\u675f\u540e\u53d6\u6d88\u6302\u8f7d<\/p>\n
sudo mount -t nfs 192.168.0.53:\/nfsDir .\ndf -h\nsudo umount .<\/code><\/pre>\n
PV\u3001PVC\u548cStorageClass<\/h3>\n
PersitentVolumeClaim\u662f\u8bf7\u6c42\u5b58\u50a8\u5c5e\u6027\u7684\u58f0\u660e\uff0c\u76f8\u5f53\u4e8e\u63a5\u53e3\uff0c\u4f9b\u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u5c4f\u853d\u5e95\u5c42\u5b9e\u73b0
\nPersitentVolume\u662f\u8bf7\u6c42\u5b58\u50a8\u7cfb\u7edf\u5c5e\u6027\u7684\u5b9e\u73b0\uff0c\u5411\u771f\u5b9e\u7684\u5b58\u50a8\u7cfb\u7edf\u8bf7\u6c42\u8d44\u6e90\u6302\u8f7d\uff0c\u7531\u8fd0\u7ef4\u4eba\u5458\u5206\u914d
\nStorageClass\u652f\u6301PV\u6839\u636e\u6a21\u677f\u7684\u52a8\u6001\u7533\u8bf7\u6302\u8f7d\uff0c\u5982StatefulSet\u4e2d\u7684volumeClaimTemplates<\/p>\n
PV\u3001PVC\u7684\u624b\u52a8\u5206\u914d\u7ed1\u5b9a<\/h4>\n
wp-pv.yaml<\/p>\n
apiVersion: v1\nkind: PersistentVolume\nmetadata:\n  name: wp-pv\nspec:\n  capacity:\n    storage: 4Gi\n  volumeMode: Filesystem                   # \u6302\u8f7d\u76ee\u5f55\u6a21\u5f0f\n  accessModes:\n    - ReadWriteMany                        # \u5377\u53ef\u88ab\u591a\u4e2a\u4e3b\u673a\u540c\u65f6\u6302\u8f7d\uff0c\u6570\u636e\u5171\u4eab\n  persistentVolumeReclaimPolicy: Retain    # \u5220\u9664PVC\u6216PV\u540e\u6570\u636e\u4e0d\u88ab\u5220\u9664\n  storageClassName: wp-class               # \u7528\u4e8e\u548cPVC\u7ed1\u5b9a\u4f7f\u7528\n  nfs:\n    path: \/nfsDir                          # nfs\u6e90\u76ee\u5f55\n    server: 192.168.0.53                   # nfs\u670d\u52a1\u5668\u5730\u5740<\/code><\/pre>\n
wp-pv-claim.yaml<\/p>\n
apiVersion: v1\nkind: PersistentVolumeClaim\nmetadata:\n  name: wp-pv-claim\nspec:\n  accessModes:\n    - ReadWriteMany                        # \u53ef\u88ab\u591a\u4e2aPOD\u5171\u4eab\uff0c\u8bbf\u95ee\u6743\u9650\u4e3a\u53ef\u8bfb\u53ef\u5199\n  resources:\n    requests:\n      storage: 2Gi                         # \u542f\u52a8\u5bb9\u91cf2G\n    limits:\n      storage: 4Gi                         # \u6700\u5927\u5bb9\u91cf\u4e0d\u8d85\u8fc74G\n  storageClassName: wp-class               # \u7528\u4e8e\u548cpv\u7ed1\u5b9a\n<\/code><\/pre>\n
\u53d1\u5e03PV\u548cPVC<\/p>\n
kubectl apply -f wp-pv.yaml\nKubectl apply -f wp-pv-claim.yaml<\/code><\/pre>\n
\u67e5\u770b\u6301\u4e45\u5377\u5206\u914d\u548c\u7ed1\u5b9a\u60c5\u51b5<\/p>\n
Kubectl get pv\nkubectl describe pv wp-pv\nKubectl get pvc\nkubectl describe pvc wp-pv-claim<\/code><\/pre>\n
StorageClass\u652f\u6301\u7684\u52a8\u6001\u5206\u914d(\u5f85\u7eed)<\/h4>\n
\u53c2\u8003\u8d44\u6599<\/h3>\n
ubuntu nfs\u6587\u6863<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Docker\u6301\u4e45\u5377\u548c\u8bfb\u5199\u5c42 Docker\u5bb9\u5668\u4e2d\u7684\u6587\u4ef6\u4fdd\u5b58\u5728 \u955c\u50cf\u7684\u8bfb\u5199\u5c42\u4e2d \u6216\u8005 \u6302\u8f7d\u7684\u5b58\u50a8\u7cfb\u7edf\u4e2d \u4ee5\u4e0b\u8bf4\u660eD … <\/p>\n
\u7ee7\u7eed\u9605\u8bfb\u201cK8S\u548cDocker\u7684\u6301\u4e45\u5316\u673a\u5236 – \u4f18\u96c5\u5730\u4f7f\u7528\u5b58\u50a8\u7cfb\u7edf\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[73],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"http:\/\/139.196.114.170\/index.php?rest_route=\/wp\/v2\/posts\/2682"}],"collection":[{"href":"http:\/\/139.196.114.170\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/139.196.114.170\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/139.196.114.170\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/139.196.114.170\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2682"}],"version-history":[{"count":2,"href":"http:\/\/139.196.114.170\/index.php?rest_route=\/wp\/v2\/posts\/2682\/revisions"}],"predecessor-version":[{"id":2684,"href":"http:\/\/139.196.114.170\/index.php?rest_route=\/wp\/v2\/posts\/2682\/revisions\/2684"}],"wp:attachment":[{"href":"http:\/\/139.196.114.170\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.196.114.170\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2682"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.196.114.170\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}