{"id":493,"date":"2019-09-29T19:47:50","date_gmt":"2019-09-29T11:47:50","guid":{"rendered":"https:\/\/nj.transwarp.cn:8180\/?p=493"},"modified":"2019-11-15T17:41:04","modified_gmt":"2019-11-15T09:41:04","slug":"k8s-pod-%e5%92%8c%e5%ae%bf%e4%b8%bb%e6%9c%ba%e6%9c%ac%e5%9c%b0%e4%ba%92%e7%9b%b8%e6%8b%b7%e8%b4%9d%e6%96%87%e4%bb%b6%e7%9a%84%e5%87%a0%e7%a7%8d%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/kbwp.transwarp.cn\/?p=493","title":{"rendered":"K8s Pod \u548c\u5bbf\u4e3b\u673a\u672c\u5730\u4e92\u76f8\u62f7\u8d1d\u6587\u4ef6\u7684\u51e0\u79cd\u65b9\u5f0f"},"content":{"rendered":"<h3>\u6982\u8981\u63cf\u8ff0<\/h3>\n<hr \/>\n<p>\u8be5\u6587\u6863\u603b\u7ed3\u4e86 K8s Pod \u4e2d\u548c\u672c\u5730\u5bbf\u4e3b\u673a\u6587\u4ef6\u4f20\u8f93\u7684\u51e0\u79cd\u65b9\u5f0f\uff0c\u6709\u9700\u8981\u7684\u65f6\u5019\u53ef\u4f9b\u53c2\u8003\u3002\u6b22\u8fce\u6307\u6b63\u548c\u6dfb\u52a0\u3002\u4e0b\u6587\u63d0\u5230\u7684\u591a\u79cd\u65b9\u6cd5\u4e2d\uff0c\u9009\u62e9\u4e00\u79cd\u9002\u5408\u81ea\u5df1\u7684\u5c31\u884c\u3002<br \/>\n\u672c\u6587\u6863\u7684\u6848\u4f8b\u5747\u4e3a\u5728 Centos 7 \u4e0a\u5b9e\u73b0\uff0c\u547d\u4ee4\u5747\u901a\u8fc7 root \u7528\u6237\u6267\u884c\u3002<\/p>\n<h3>\u8be6\u7ec6\u8bf4\u660e<\/h3>\n<hr \/>\n<p><strong>1. kubectl cp<\/strong><br \/>\n&emsp;<strong>\u4f7f\u7528\u524d\u63d0<\/strong>\uff1aPod \u4e2d\u5bf9\u5e94\u7684 container \u4e2d\u5b89\u88c5\u4e86 tar \u547d\u4ee4\uff0c\u8be5\u65b9\u5f0f\u4e0d\u7528\u8fdb\u5165\u5230 Pod \u5185<br \/>\n&emsp;<strong>\u6ce8\u610f<\/strong>\uff1a\u6709\u7684TOS \u91cc\u8be5\u547d\u4ee4\u8c8c\u4f3c\u662f\u4e0d\u80fd\u7528\u7684<\/p>\n<ul>\n<li>\u9996\u5148\u5217\u51fa Pod\uff0c\u83b7\u53d6 Pod \u7684 Name, mycentos \u4e3a pod name \u4e2d\u7684\u5173\u952e\u5b57<\/li>\n<\/ul>\n<pre><code class=\"language-bash\"># kubectl get pods -o wide | grep -i mycentos\n\nNAME                        READY   STATUS    RESTARTS   AGE\nmycentos-7b59b5b755-8rbgc   1\/1     Running   0          5h20m\nmycentos-7b59b5b755-vm6ld   1\/1     Running   1          5h31m<\/code><\/pre>\n<ul>\n<li>\u5bbf\u4e3b\u673a &#8211;&gt; Pod  <\/li>\n<\/ul>\n<p>&emsp;&emsp;\u5c06\u5bbf\u4e3b\u673a \/tmp\/test_pod.txt \u62f7\u8d1d\u5230 mycentos-7b59b5b755-8rbgc \u5bf9\u5e94\u7684\u7b2c\u4e00\u4e2a\u5bb9\u5668\u4e2d\u7684 \/root \u76ee\u5f55\u4e0b\uff0c\u62f7\u8d1d\u76ee\u5f55\u4e5f\u662f\u4e00\u6837\u7684\u3002default \u4e3a namespace<\/p>\n<pre><code class=\"language-bash\"># kubectl cp \/tmp\/test_pod.txt default\/mycentos-7b59b5b755-8rbgc:\/root<\/code><\/pre>\n<ul>\n<li>Pod &#8211;&gt; \u5bbf\u4e3b\u673a   <\/li>\n<\/ul>\n<p>&emsp;&emsp;\u5c06 mycentos-7b59b5b755-8rbgc \u4e2d \/root\/from_pod.txt \u6587\u4ef6\u62f7\u8d1d\u5230\u5bbf\u4e3b\u673a \/tmp \u76ee\u5f55\u4e0b\uff0c\u5e76\u547d\u540d\u4e3a from_pod.new<\/p>\n<pre><code class=\"language-bash\"># kubectl cp default\/mycentos-7b59b5b755-8rbgc:\/root\/from_pod.txt  \/tmp\/from_pod.new<\/code><\/pre>\n<p>&emsp;&emsp;\u5c06 mycentos-7b59b5b755-8rbgc \u4e2d \/root\/pod_dir \u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u62f7\u8d1d\u5230\u5bbf\u4e3b\u673a \/tmp \u76ee\u5f55\u4e0b<\/p>\n<pre><code># kubectl cp default\/mycentos-7b59b5b755-8rbgc:\/root\/pod_dir \/tmp<\/code><\/pre>\n<p>&emsp;<strong>Tips<\/strong>\uff1a<br \/>\n&emsp;&emsp;Pod &#8211;&gt; \u5bbf\u4e3b\u673a\u65f6\uff0c\u62f7\u8d1d\u6587\u4ef6\u9700\u8981\u6307\u5b9a\u76ee\u6807\u6587\u4ef6\u540d\uff1b\u62f7\u8d1d\u76ee\u5f55\u53ef\u4ee5\u4e0d\u6307\u5b9a<br \/>\n<\/br><\/p>\n<p><strong>2. scp<\/strong><br \/>\n&emsp;<strong>\u4f7f\u7528\u524d\u63d0<\/strong>\uff1a\u5bbf\u4e3b\u673a\u548c Pod \u7684 container \u4e2d\u90fd\u5b89\u88c5\u4e86 scp \u547d\u4ee4\uff0c\u9700\u8981\u5bbf\u4e3b\u673a\u7684\u5bc6\u7801\uff0c\u8be5\u65b9\u5f0f\u9700\u8981\u8fdb\u5165\u5230 Pod \u5185<br \/>\n&emsp;\u6267\u884c\u5982\u4e0b\u547d\u4ee4\u8fdb\u5165 pod\uff0cmycentos-7b59b5b755-8rbgc \u66ff\u6362\u4e3a\u76f8\u5e94 pod name\u3002<\/p>\n<pre><code class=\"language-bash\"># kubectl exec -it  mycentos-7b59b5b755-8rbgc \/bin\/bash<\/code><\/pre>\n<ul>\n<li>\u5bbf\u4e3b\u673a &#8211;&gt; Pod <\/li>\n<\/ul>\n<p>&emsp;&emsp;\u5c06\u5bbf\u4e3b\u673a \/tmp\/test_pod.txt \u62f7\u8d1d\u5230 mycentos-7b59b5b755-8rbgc \u5bf9\u5e94\u7684\u7b2c\u4e00\u4e2a\u5bb9\u5668\u4e2d \/root \u76ee\u5f55\u4e0b,\u5bbf\u4e3b\u673a ip \u4e3a 172.22.202.69\uff0c\u7528\u6237 root<\/p>\n<pre><code class=\"language-bash\"># scp -rv root@172.22.202.69:\/tmp\/test_pod.txt \/root <\/code><\/pre>\n<ul>\n<li>Pod &#8211;&gt; \u5bbf\u4e3b\u673a<\/li>\n<\/ul>\n<p>&emsp;&emsp;\u5c06 mycentos-7b59b5b755-8rbgc \u4e2d \/root\/from_pod.txt \u6587\u4ef6\u62f7\u8d1d\u5230\u5bbf\u4e3b\u673a \/tmp \u76ee\u5f55\u4e0b\uff0c\u5bbf\u4e3b\u673a ip \u4e3a 172.22.202.69\uff0c\u7528\u6237 root<\/p>\n<pre><code class=\"language-bash\"># scp -rv \/root\/from_pod.txt root@172.22.202.69:\/tmp<\/code><\/pre>\n<p>&emsp;<strong>Tips<\/strong>: \u5b89\u88c5 scp \u547d\u4ee4 <code> yum install -y openssh-clients <\/code><br \/>\n<\/br><\/p>\n<p><strong>3. docker cp<\/strong><br \/>\n&emsp;&emsp;\u83b7\u53d6 pod \u540d\u4e3a mycentos-7b59b5b755-8rbgc \u5bf9\u5e94 container \u7684 id<\/p>\n<pre><code class=\"language-bash\"># kubectl describe pod\/mycentos-7b59b5b755-8rbgc | grep -iE \"\\s.*container id.*|Node:\\s*.*\" -B 2 -A 2\n\nNamespace:      default\nPriority:       0\nNode:           172.22.202.70\/172.22.202.70\nStart Time:     Wed, 07 Aug 2019 12:58:17 +0800\nLabels:         pod-template-hash=7b59b5b755\n--\nContainers:\n  mycentos:\n    Container ID:  docker:\/\/5c73edb95237ab7e4af2d85aad9674899492134e8addc20dfc05e2a598acd7eb\n    Image:         centos\n    Image ID:      docker-pullable:\/\/centos@sha256:a799dd8a2ded4a83484bbae769d97655392b3f86533ceb7dd96bbac929809f3c<\/code><\/pre>\n<p>&emsp;&emsp;\u4ece\u4e0a\u9762\u7684\u7ed3\u679c\u53ef\u4ee5\u5f97\u77e5\u8be5 pod \u5bf9\u5e94\u7684 container \u8fd0\u884c\u5728 172.22.202.70 \u8282\u70b9\u4e0a\uff0c\u76f8\u5e94\u7684 container id \u4e3a\uff1a5c73edb95237ab7e4af2d85aad9674899492134e8addc20dfc05e2a598acd7eb<\/p>\n<ul>\n<li>\u5bbf\u4e3b\u673a &#8211;&gt; Pod<\/li>\n<\/ul>\n<p>&emsp;&emsp;\u5230 container \u8fd0\u884c\u7684 node 172.22.202.70 \u4e0a\uff0c\u5c06 \/tmp\/test_pod.txt \u62f7\u8d1d\u5230\u5bb9\u5668\u91cc \/root \u76ee\u5f55\u4e0b<\/p>\n<pre><code class=\"language-bash\"># docker cp \/tmp\/test_pod.txt 5c73edb95237ab7e4af2d85aad9674899492134e8addc20dfc05e2a598acd7eb:\/root<\/code><\/pre>\n<ul>\n<li>Pod &#8211;&gt; \u5bbf\u4e3b\u673a<\/li>\n<\/ul>\n<p>&emsp;&emsp;\u5230 container \u8fd0\u884c\u7684 node 172.22.202.70 \u4e0a\uff0c\u5c06\u5bb9\u5668\u5185 \/root\/from_pod.txt \u62f7\u8d1d\u5230\u672c\u5730 \/tmp \u76ee\u5f55\u4e0b<\/p>\n<pre><code class=\"language-bash\"># docker cp 5c73edb95237ab7e4af2d85aad9674899492134e8addc20dfc05e2a598acd7eb:\/root\/from_pod.txt \/tmp<\/code><\/pre>\n<p><\/br><\/p>\n<p><strong>4. lftp<\/strong><br \/>\n&emsp;<strong>\u4f7f\u7528\u524d\u63d0<\/strong>\uff1aPod \u5185\u5bb9\u5668\u5b89\u88c5\u4e86 lftp \u5de5\u5177\uff0c\u672c\u5730\u5bbf\u4e3b\u673a\u5b89\u88c5\u5e76\u542f\u52a8\u4e86 vsftpd\uff0c\u8be5\u65b9\u5f0f\u9700\u8981\u8fdb\u5165\u5230 Pod \u5185<br \/>\n&emsp;\u6267\u884c\u5982\u4e0b\u547d\u4ee4\u8fdb\u5165 pod\uff0cmycentos-7b59b5b755-8rbgc \u66ff\u6362\u4e3a\u76f8\u5e94 pod name\u3002<\/p>\n<pre><code class=\"language-bash\"># kubectl exec -it  mycentos-7b59b5b755-8rbgc \/bin\/bash<\/code><\/pre>\n<p>&emsp;lftp \u8fde\u63a5\u5230 172.22.202.69 \u7684 21 \u7aef\u53e3\uff0c\u7528 root \u7528\u6237\uff0c\u8f93\u5165\u5bc6\u7801\u540e\u5373\u53ef\u8fdb\u884c\u6587\u4ef6\u4f20\u8f93<\/p>\n<pre><code class=\"language-bash\"># lftp 172.22.202.69 -p 21 -u root<\/code><\/pre>\n<ul>\n<li>\u5bbf\u4e3b\u673a &#8211;&gt; Pod<\/li>\n<\/ul>\n<p>&emsp;lftp \u5185\u547d\u4ee4\u4f20\u8f93\u793a\u4f8b\uff0c\u5c06\u672c\u5730 \/tmp\/pod_dir \u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6587\u4ef6\u4f20\u8f93\u5230 Pod \u7684 \/root \u76ee\u5f55\u4e0b<\/p>\n<pre><code class=\"language-bash\"># mget \/tmp\/pod_dir\/* -O \/root <\/code><\/pre>\n<ul>\n<li>Pod &#8211;&gt; \u5bbf\u4e3b\u673a<\/li>\n<\/ul>\n<p>&emsp;\u5c06 Pod \u7684 \/root \u76ee\u5f55\u4e0b\u7684 from_pod.txt \u6587\u4ef6\u4f20\u8f93\u5230\u672c\u5730 \/tmp \u76ee\u5f55\u4e0b<\/p>\n<pre><code class=\"language-bash\"># mput \/root\/from_pod.txt -O \/tmp <\/code><\/pre>\n<p>&emsp;<strong>Tips<\/strong>:<br \/>\n<strong>&emsp;&emsp;vsftpd \u7684\u5b89\u88c5<\/strong>\uff1a<code> yum install -y vsftpd &amp;&amp; sleep 2 &amp;&amp; systemctl start vsftpd &amp;&amp; sleep 2 &amp;&amp; systemctl enable vsftpd &amp;&amp; systemctl status vsftpd <\/code><br \/>\n<strong>&emsp;&emsp;lftp \u7684\u5b89\u88c5<\/strong>\uff1a<code> yum install -y lftp <\/code><br \/>\n<\/br><\/p>\n<p><strong>5. cp<\/strong><br \/>\n&emsp;\u53c2\u8003\u7b2c 3. \u90e8\u5206\u5148\u83b7\u53d6 Pod \u5bf9\u5e94\u7684 container id\uff0c\u4ee5\u4e0b\u4ee5\u5bb9\u5668 5c73edb95237ab7e4af2d85aad9674899492134e8addc20dfc05e2a598acd7eb \u4e3e\u4f8b\u3002<br \/>\n&emsp;\u627e\u5230 5c73edb95237ab7e4af2d85aad9674899492134e8addc20dfc05e2a598acd7eb \u5bb9\u5668\u5728\u672c\u5730\u7684\u8bfb\u5199\u5c42\u76ee\u5f55<\/p>\n<pre><code class=\"language-bash\"># docker inspect -f '{{.GraphDriver.Data.UpperDir}}' 5c73edb95237ab7e4af2d85aad9674899492134e8addc20dfc05e2a598acd7eb<\/code><\/pre>\n<p>&emsp;\u4e0a\u8ff0\u6267\u884c\u7ed3\u679c\u4e3a\uff1a\/var\/lib\/docker\/overlay2\/e57f783cce10c2d14ea48b6194f3796f361fa9e045e633038b604c32ad9fce1a\/diff  <\/p>\n<pre><code class=\"language-bash\"># ls -lrt \/var\/lib\/docker\/overlay2\/e57f783cce10c2d14ea48b6194f3796f361fa9e045e633038b604c32ad9fce1a\/diff\n\ntotal 8\ndrwxr-xr-x 8 root root   75 Mar  6 01:34 usr\ndrwxr-xr-x 6 root root   48 Mar  6 01:34 var\ndrwxr-xr-x 2 root root   28 Aug  7 20:43 dev\ndrwxr-xr-x 4 root root 4096 Aug  7 21:05 etc\ndrwxrwxrwt 2 root root    6 Aug  7 21:05 tmp\ndrwxr-xr-x 3 root root   20 Aug  7 21:05 run\ndr-xr-x--- 5 root root 4096 Aug  7 22:40 root<\/code><\/pre>\n<ul>\n<li>\u5bbf\u4e3b\u673a &#8211;&gt; Pod<\/li>\n<\/ul>\n<p>&emsp;&emsp;\u76f4\u63a5\u5728\u672c\u5730\u64cd\u4f5c\uff0c\u5c06 \/tmp\/test_pod.txt \u6587\u4ef6\u62f7\u8d1d\u5230 Pod \u7684 \/root \u76ee\u5f55\uff0c\u7136\u540e\u5728 Pod \u7684 \/root \u76ee\u5f55\u4e0b\u4fbf\u53ef\u770b\u5230\u8be5\u6587\u4ef6<\/p>\n<pre><code class=\"language-bash\"># cp \/tmp\/test_pod.txt \/var\/lib\/docker\/overlay2\/e57f783cce10c2d14ea48b6194f3796f361fa9e045e633038b604c32ad9fce1a\/diff\/root\/<\/code><\/pre>\n<p><\/br><\/p>\n<p>&emsp;<strong>\u603b\u7ed3<\/strong>\uff1a\u5176\u5b9e Pod \u4e5f\u53ef\u4ee5\u5f53\u4f5c\u662f\u53e6\u4e00\u4e2a\u670d\u52a1\u5668\uff0c\u6240\u4ee5 Linux \u4e2d\u670d\u52a1\u5668\u95f4\u4f20\u9012\u6587\u4ef6\u7684\u4e00\u4e9b\u5de5\u5177\u5982 ftp \u7b49\uff0c\u7406\u8bba\u4e0a\u6765\u8bf4\u90fd\u53ef\u4ee5\u7528\u6765\u5b9e\u73b0\u672c\u5730\u4e3b\u673a\u548c Pod \u5185\u90e8\u6587\u4ef6\u4f20\u8f93\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981\u63cf\u8ff0 \u8be5\u6587\u6863\u603b\u7ed3\u4e86 K8s Pod \u4e2d\u548c\u672c\u5730\u5bbf\u4e3b\u673a\u6587\u4ef6\u4f20\u8f93\u7684\u51e0\u79cd\u65b9\u5f0f\uff0c\u6709\u9700\u8981\u7684\u65f6\u5019\u53ef\u4f9b\u53c2\u8003\u3002\u6b22\u8fce\u6307\u6b63\u548c\u6dfb\u52a0 ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/kbwp.transwarp.cn\/?p=493\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[62,63,64],"class_list":["post-493","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-k8s-pod","tag-63","tag-64"],"acf":[],"_links":{"self":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=493"}],"version-history":[{"count":1,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/493\/revisions"}],"predecessor-version":[{"id":1069,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/493\/revisions\/1069"}],"wp:attachment":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}