{"id":119,"date":"2017-03-30T15:46:02","date_gmt":"2017-03-30T07:46:02","guid":{"rendered":"http:\/\/www.jsjs.org\/?p=119"},"modified":"2017-03-30T15:46:02","modified_gmt":"2017-03-30T07:46:02","slug":"%e4%bd%bf%e7%94%a8kubeadm%e5%ae%89%e8%a3%85kubernetes-part2","status":"publish","type":"post","link":"https:\/\/blog.jsjs.org\/?p=119","title":{"rendered":"\u4f7f\u7528Kubeadm\u5b89\u88c5Kubernetes-Part2"},"content":{"rendered":"

\u6b64\u6587\u4e3a\u300a\u4f7f\u7528Kubeadm\u5b89\u88c5Kubernetes\u300b\u7684\u7b2c\u4e8c\u90e8\u5206\u3002\u6587\u7ae0\u7b2c\u4e00\u90e8\u5206\u5728\u8fd9\u91cc<\/a>\u53ef\u4ee5\u770b\u5230\u3002<\/p>\n

\u4e94\u3001weave network for pod<\/h3>\n

\u7ecf\u8fc7\u4e0a\u9762\u90a3\u4e48\u591a\u6b21\u5c1d\u8bd5\uff0c\u7ed3\u679c\u662f\u4ee4\u4eba\u626b\u5174\u7684\u3002Weave network\u4f3c\u4e4e\u662f\u6700\u540e\u4e00\u9897\u6551\u547d\u7a3b\u8349\u4e86\u3002\u6709\u4e86\u524d\u9762\u7684\u94fa\u57ab\uff0c\u8fd9\u91cc\u5c31\u4e0d\u8be6\u7ec6\u5217\u51fa\u5404\u79cd\u547d\u4ee4\u7684\u8f93\u51fa\u7ec6\u8282\u4e86\u3002Weave network\u4e5f\u6709\u4e13\u95e8\u7684\u5b98\u65b9\u6587\u6863<\/a>\u7528\u4e8e\u6307\u5bfc\u5982\u4f55\u4e0ekubernetes\u96c6\u7fa4\u96c6\u6210\uff0c\u6211\u4eec\u4e3b\u8981\u4e5f\u662f\u53c2\u8003\u5b83\u3002<\/p>\n

1\u3001\u5b89\u88c5weave network add-on<\/h4>\n

\u5728kubeadm reset\u540e\uff0c\u6211\u4eec\u91cd\u65b0\u521d\u59cb\u5316\u4e86\u96c6\u7fa4\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u5b89\u88c5weave network add-on\uff1a<\/p>\n

# kubectl apply -f https:\/\/git.io\/weave-kube\ndaemonset \"weave-net\" created\n<\/code><\/pre>\n
\u524d\u9762\u65e0\u8bba\u662fFlannel\u8fd8\u662fcalico\uff0c\u5728\u5b89\u88c5pod network add-on\u65f6\u81f3\u5c11\u90fd\u8fd8\u662f\u987a\u5229\u7684\u3002\u4e0d\u8fc7\u5728Weave network\u8fd9\u6b21\uff0c\u6211\u4eec\u906d\u9047\u201c\u5f53\u5934\u68d2\u559d\u201d:(:<\/p>\n
# kubectl get pod --all-namespaces -o wide\nNAMESPACE     NAME                                   READY     STATUS              RESTARTS   AGE       IP             NODE\nkube-system   dummy-2088944543-4kxtk                 1\/1       Running             0          42m       10.47.217.91   iz25beglnhtz\nkube-system   etcd-iz25beglnhtz                      1\/1       Running             0          42m       10.47.217.91   iz25beglnhtz\nkube-system   kube-apiserver-iz25beglnhtz            1\/1       Running             0          42m       10.47.217.91   iz25beglnhtz\nkube-system   kube-controller-manager-iz25beglnhtz   1\/1       Running             0          42m       10.47.217.91   iz25beglnhtz\nkube-system   kube-discovery-1769846148-pzv8p        1\/1       Running             0          42m       10.47.217.91   iz25beglnhtz\nkube-system   kube-dns-2924299975-09dcb              0\/4       ContainerCreating   0          42m       <none>         iz25beglnhtz\nkube-system   kube-proxy-z465f                       1\/1       Running             0          42m       10.47.217.91   iz25beglnhtz\nkube-system   kube-scheduler-iz25beglnhtz            1\/1       Running             0          42m       10.47.217.91   iz25beglnhtz\nkube-system   weave-net-3wk9h                        0\/2       CrashLoopBackOff    16         17m       10.47.217.91   iz25beglnhtz\n<\/code><\/pre>\n
\u5b89\u88c5\u540e\uff0cweave-net pod\u63d0\u793a:CrashLoopBackOff\u3002\u8ffd\u8e2a\u5176Container log\uff0c\u5f97\u5230\u5982\u4e0b\u9519\u8bef\u4fe1\u606f\uff1a<\/p>\n
# docker logs cde899efa0af\ntime=\"2016-12-28T08:25:29Z\" level=info msg=\"Starting Weaveworks NPC 1.8.2\"\ntime=\"2016-12-28T08:25:29Z\" level=info msg=\"Serving \/metrics on :6781\"\nWed Dec 28 08:25:29 2016 <5> ulogd.c:843 building new pluginstance stack: 'log1:NFLOG,base1:BASE,pcap1:PCAP'\ntime=\"2016-12-28T08:25:29Z\" level=fatal msg=\"ipset [destroy] failed: ipset v6.29: Set cannot be destroyed: it is in use by a kernel component\\n: exit status 1\"\n<\/code><\/pre>\n
2\u3001\u89e3\u51b3ipset destroy\u9519\u8bef<\/h4>\n
\u4ece\u4e0a\u8ff0\u7684\u9519\u8bef\u65e5\u5fd7\u6765\u770b\uff0c\u4f3c\u4e4e\u67d0\u4e9b\u5185\u6838\u7ec4\u4ef6\u5360\u7528\u4e86\u4e00\u4e9bIP\u8d44\u6e90\uff0c\u6ca1\u6709\u91ca\u653e\u3002ipset(administration tool for IP sets)\u8fd9\u4e2a\u5de5\u5177\u4ee5\u524d\u4ece\u6765\u6ca1\u6709\u63a5\u89e6\u8fc7\u3002\u5728node\u4e0a\u5229\u7528apt-get install \u4e00\u4e2aipset\u5de5\u5177\uff0c\u624b\u5de5\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
# ipset destroy\nipset v6.29: Set cannot be destroyed: it is in use by a kernel component\n\n<\/code><\/pre>\n
\u8fd9\u4e2a\u9519\u8bef\u8f93\u51fa\u4e0econtainer\u4e2d\u7684error log\u4e00\u6a21\u4e00\u6837\u3002\u8bd5\u7740\u7528ipset\u770b\u770b\u54ea\u4e9bip\u8d44\u6e90\u6ca1\u6709\u91ca\u653e\uff0c\u8fd9\u4e00\u62db\u8ba9\u6211\u4eec\u770b\u5230\u4e86\u86db\u4e1d\u9a6c\u8ff9\uff1a<\/p>\n
\u5728minion node\u4e0a\u6267\u884c\uff1a<\/p>\n
# ipset list\nName: felix-calico-hosts-4\nType: hash:ip\nRevision: 4\nHeader: family inet hashsize 1024 maxelem 1048576\nSize in memory: 224\nReferences: 1\nMembers:\n123.56.200.187\n59.110.67.15\n\nName: felix-all-ipam-pools\nType: hash:net\nRevision: 6\nHeader: family inet hashsize 1024 maxelem 1048576\nSize in memory: 448\nReferences: 1\nMembers:\n192.168.0.0\/16\n\nName: felix-masq-ipam-pools\nType: hash:net\nRevision: 6\nHeader: family inet hashsize 1024 maxelem 1048576\nSize in memory: 448\nReferences: 1\nMembers:\n192.168.0.0\/16\n<\/code><\/pre>\n
\u6211\u4eec\u770b\u5230\u4e86calico\u5b57\u6837\u3002\u539f\u6765\u662fcalico\u7684\u201c\u6b8b\u7559\u52bf\u529b\u201d\u5728\u4f5c\u795f\u554a\u3002\u8fdb\u4e00\u6b65\u6211\u4eec\u53d1\u73b0calico\u521b\u5efa\u7684\u4e00\u4e2anetwork device\u4f9d\u65e7\u5b58\u5728\u4e8e\u4e24\u4e2aNode\u4e0a\uff1a<\/p>\n
47: tunl0@NONE: <NOARP,UP,LOWER_UP> mtu 1440 qdisc noqueue state UNKNOWN group default qlen 1\n    link\/ipip 0.0.0.0 brd 0.0.0.0\n    inet 192.168.91.0\/32 scope global tunl0\n       valid_lft forever preferred_lft forever\n<\/code><\/pre>\n
\u6211\u4eec\u8bd5\u56fe\u5220\u9664\u5b83\uff0c\u4f46\u6700\u7ec8\u90fd\u4ee5\u5931\u8d25\u544a\u7ec8\uff1a<\/p>\n
# ip tunnel show\ntunl0: ip\/ip  remote any  local any  ttl inherit  nopmtudisc\n\n #ip tunnel del tunl0\ndelete tunnel \"tunl0\" failed: Operation not permitted\n\n<\/code><\/pre>\n
\u65e0\u5948\u53ea\u80fd\u628a\u5b83down\u6389\uff1a<\/p>\n
#ip -f inet addr delete 192.168.91.0\/32  dev tunl0\n\n47: tunl0@NONE: <NOARP,UP,LOWER_UP> mtu 1440 qdisc noqueue state UNKNOWN group default qlen 1\n    link\/ipip 0.0.0.0 brd 0.0.0.0\n\n# ifconfig tunl0 down\n\n47: tunl0@NONE: <NOARP> mtu 1440 qdisc noqueue state DOWN group default qlen 1\n    link\/ipip 0.0.0.0 brd 0.0.0.0\n<\/code><\/pre>\n
\u4f46\u4f9d\u65e7\u65e0\u6cd5\u5220\u9664\u5b83\u3002\u6211\u4eec\u901a\u8fc7ipset del\u547d\u4ee4\u5c06\u4e0a\u9762ipset\u5360\u7528\u7684ip entry\u9010\u4e2a\u5220\u9664\u6389\uff08\u6bd4\u5982ipset del felix-calico-hosts-4 123.56.200.187\uff09\u3002\u4f46\u5373\u4fbf\u5168\u90e8\u6e05\u7a7a\uff0cipset destroy\u4f9d\u7136\u5931\u8d25\u3002<\/p>\n
\u65e0\u5948\u4e4b\u4e0b\uff0c\u51b3\u5b9a\u91cd\u542f\u4e00\u4e0b\u4e24\u4e2aNode\u8bd5\u8bd5\u3002\u91cd\u542f\u540e\uff0ccalico\u521b\u5efa\u7684\u8fd9\u4e2atunnel\u5c45\u7136\u6d88\u5931\u4e86\u3002<\/p>\n
3\u3001\u518d\u9047\u8def\u7531\u51b2\u7a81\u9519\u8bef<\/h4>\n
\u91cd\u542fECS\u5b9e\u4f8b\u540e\uff0c\u6211\u4eec\u91cd\u65b0\u4ece\u5934\u6765\u521b\u5efacluster\u3002\u4e0d\u8fc7\u5728\u6267\u884c\u201ckubectl apply -f https:\/\/git.io\/weave-kube\u201d \u540e\u6211\u4eec\u53d1\u73b0weave-net pod\u4f9d\u65e7\u6ca1\u6709\u8d77\u6765\uff0c\u8fd9\u6b21\u7684\u9519\u8bef\u662f\u201c\u8def\u6709\u51b2\u7a81\u201d\uff1a<\/p>\n
#docker logs 80383071f721\nNetwork 10.32.0.0\/12 overlaps with existing route 10.0.0.0\/8 on host.\n<\/code><\/pre>\n
\u67e5\u770b\u5f53\u524d\u8def\u7531\u8868\uff1a<\/p>\n
netstat -rn\nKernel IP routing table\nDestination     Gateway         Genmask         Flags   MSS Window  irtt Iface\n0.0.0.0         123.56.203.247  0.0.0.0         UG        0 0          0 eth1\n10.0.0.0        10.47.223.247   255.0.0.0       UG        0 0          0 eth0\n10.47.216.0     0.0.0.0         255.255.248.0   U         0 0          0 eth0\n100.64.0.0      10.47.223.247   255.192.0.0     UG        0 0          0 eth0\n123.56.200.0    0.0.0.0         255.255.252.0   U         0 0          0 eth1\n172.16.0.0      10.47.223.247   255.240.0.0     UG        0 0          0 eth0\n192.168.0.0     0.0.0.0         255.255.240.0   U         0 0          0 docker0\n<\/code><\/pre>\n
\u7684\u786eweave-net\u9ed8\u8ba4\u8981\u4f7f\u7528\u7684 10.32.0.0\/12\u4e0e 10.0.0.0\/8 \u5b58\u5728\u4ea4\u96c6\u3002\u5bf9\u6b64\uff0cweave net\u5b98\u65b9\u662f\u7ed9\u51fa\u89e3\u51b3\u65b9\u6848<\/a>\u4e86\u7684\u3002<\/p>\n
\u6211\u4eec\u5148\u5c06https:\/\/git.io\/weave-kube\u5bf9\u5e94\u7684yaml\u6587\u4ef6\u4e0b\u8f7d\u5230\u672c\u5730\uff1aweave-daemonset.yaml\u3002\u4fee\u6539\u8be5\u6587\u4ef6\uff0c\u4e3acontainer\u589e\u52a0IPALLOC_RANGE\u73af\u5883\u53d8\u91cf\uff1a<\/p>\n
containers:\n        - name: weave\n          env:\n            - name: IPALLOC_RANGE\n              value: 172.30.0.0\/16\n\n<\/code><\/pre>\n
\u66f4\u65b0weave net pod\uff1a<\/p>\n
# kubectl delete -f weave-daemonset.yaml\ndaemonset \"weave-net\" deleted\n\n# kubectl apply -f weave-daemonset.yaml\ndaemonset \"weave-net\" created\n<\/code><\/pre>\n
\u4e0d\u8fc7\u4f9d\u7136\u5b58\u5728\u8def\u6709\u51b2\u7a81\u3002\u539f\u6765\u8def\u7531\u8868\u91cc\u5df2\u7ecf\u5b58\u5728\u4e86\u4e00\u6761\u8fd9\u6837\u7684\u8def\u7531\uff1a<\/p>\n
172.16.0.0      10.28.63.247    255.240.0.0     UG    0      0        0 eth0\n<\/code><\/pre>\n
\u8fd9\u6761\u8def\u7531\u5e94\u8be5\u6ca1\u6709\u4ec0\u4e48\u7528\uff0c\u4e5f\u8bb8\u662f\u4e4b\u524d\u6298\u817e\u65f6\u88ab\u67d0\u4e2anetwork addon\u52a0\u8fdb\u53bb\u7684\u3002\u4e8e\u662f\u7528route\u547d\u4ee4\u5c06\u5176\u5220\u9664\uff1a<\/p>\n
# route del -net 172.16.0.0 netmask 255.240.0.0 gw 10.28.63.247\n<\/code><\/pre>\n
\u518d\u6b21\u66f4\u65b0weave net pod\u5e76\u67e5\u770bcluster status\uff1a<\/p>\n
# kubectl delete -f weave-daemonset.yaml\ndaemonset \"weave-net\" deleted\n\n# kubectl apply -f weave-daemonset.yaml\ndaemonset \"weave-net\" created\n\n# kubectl get pods --all-namespaces -o wide\nNAMESPACE     NAME                                   READY     STATUS    RESTARTS   AGE       IP             NODE\nkube-system   dummy-2088944543-93f4c                 1\/1       Running   0          21m       10.47.217.91   iz25beglnhtz\nkube-system   etcd-iz25beglnhtz                      1\/1       Running   0          21m       10.47.217.91   iz25beglnhtz\nkube-system   kube-apiserver-iz25beglnhtz            1\/1       Running   0          20m       10.47.217.91   iz25beglnhtz\nkube-system   kube-controller-manager-iz25beglnhtz   1\/1       Running   0          21m       10.47.217.91   iz25beglnhtz\nkube-system   kube-discovery-1769846148-wbc7h        1\/1       Running   0          21m       10.47.217.91   iz25beglnhtz\nkube-system   kube-dns-2924299975-206tg              4\/4       Running   0          21m       172.30.0.2     iz25beglnhtz\nkube-system   kube-proxy-n2xmf                       1\/1       Running   0          21m       10.47.217.91   iz25beglnhtz\nkube-system   kube-scheduler-iz25beglnhtz            1\/1       Running   0          20m       10.47.217.91   iz25beglnhtz\nkube-system   weave-net-h38k5                        2\/2       Running   0          18s       10.47.217.91   iz25beglnhtz\n\n<\/code><\/pre>\n
\u8fd9\u56deweave-net pod running\u4e86\u3002taint master node\u5e76\u4e14minion node join\u540ecluster\u4f9d\u65e7\u662fok\u7684\uff1a<\/p>\n
# kubectl get pods --all-namespaces -o wide\nNAMESPACE     NAME                                   READY     STATUS    RESTARTS   AGE       IP             NODE\nkube-system   dummy-2088944543-93f4c                 1\/1       Running   0          23m       10.47.217.91   iz25beglnhtz\nkube-system   etcd-iz25beglnhtz                      1\/1       Running   0          23m       10.47.217.91   iz25beglnhtz\nkube-system   kube-apiserver-iz25beglnhtz            1\/1       Running   0          22m       10.47.217.91   iz25beglnhtz\nkube-system   kube-controller-manager-iz25beglnhtz   1\/1       Running   0          23m       10.47.217.91   iz25beglnhtz\nkube-system   kube-discovery-1769846148-wbc7h        1\/1       Running   0          23m       10.47.217.91   iz25beglnhtz\nkube-system   kube-dns-2924299975-206tg              4\/4       Running   0          23m       172.30.0.2     iz25beglnhtz\nkube-system   kube-proxy-377zh                       1\/1       Running   0          8s        10.28.61.30    iz2ze39jeyizepdxhwqci6z\nkube-system   kube-proxy-n2xmf                       1\/1       Running   0          23m       10.47.217.91   iz25beglnhtz\nkube-system   kube-scheduler-iz25beglnhtz            1\/1       Running   0          22m       10.47.217.91   iz25beglnhtz\nkube-system   weave-net-9tf1d                        2\/2       Running   0          8s        10.28.61.30    iz2ze39jeyizepdxhwqci6z\nkube-system   weave-net-h38k5                        2\/2       Running   0          2m        10.47.217.91   iz25beglnhtz\n<\/code><\/pre>\n
4\u3001\u6d4b\u8bd5weave net\u8de8\u8282\u70b9pod\u8fde\u901a\u6027<\/h4>\n
\u8fd9\u56de\u6211\u4eec\u4f9d\u65e7\u542f\u52a8my-nginx service\uff0c\u5728\u4efb\u610f\u4e00\u4e2a\u8282\u70b9curl localhost:30062\uff0c\u6211\u4eec\u53d1\u73b0\u88ab\u8c03\u5ea6\u5230minion node\u4e0a\u7684my-nginx container\u4e5f\u6536\u5230\u4e86request\u5e76\u6210\u529f\u56de\u590dresponse\uff1a<\/p>\n
172.30.0.1 - - [30\/Dec\/2016:03:14:47 +0000] \"GET \/ HTTP\/1.1\" 200 612 \"-\" \"curl\/7.47.0\" \"-\"\n<\/code><\/pre>\n
Weave net\u521d\u6b65\u6d4b\u8bd5ok\uff01<\/p>\n
\u516d\u3001\u5c0f\u7ed3<\/h3>\n
\u867d\u7136\u8fc7\u7a0b\u574e\u5777\uff0c\u4f46\u6700\u7ec8\u5728Weave net\u7684\u5e2e\u52a9\u4e0b\uff0c\u6211\u4eec\u8fd8\u662f\u521d\u6b65\u8c03\u901a\u4e86\u4e00\u4e2a\u4f7f\u7528kubeadm\u5b89\u88c5\u7684kubernetes cluster\u3002\u540e\u6765\u6211\u53d1\u73b0\uff0c\u5728K8s\u5b98\u65b9\u535a\u5ba2\u4e2d\u6709\u4e00\u7bc7\u540d\u4e3a\u300aKubernetes: How we made Kubernetes insanely easy to install<\/a>\u300b\u7684\u6587\u7ae0\uff0c\u5176\u4f7f\u7528\u7684pod network add-on\u4e5f\u662fweave network\u3002<\/p>\n
\u8fd9\u662f\u4e00\u4e2a\u8bd5\u9a8c\u73af\u5883\u3002\u540e\u7eed\u6211\u4eec\u8fd8\u662f\u8981\u8fdb\u4e00\u6b65\u63a2\u7a76\u5982\u4f55\u7528\u4e0aFlannel\u7684\u3002\u540c\u65f6\uff0cKubernetes 1.5\u5e26\u6765\u7684\u8bf8\u591a\u65b0\u7279\u6027<\/a>\uff0c\u6bd4\u5982\uff1aMaster HA\u7b49\u8fd8\u9700\u8981\u8fdb\u4e00\u6b65\u8bd5\u9a8c\u8bc1\u660e\u3002<\/p>\n
\u4e3a\u4e86\u6ee1\u8db3\u6211\u4eec\u7684production\u73af\u5883\u8981\u6c42\uff0c\u4e4b\u524d\u5b9e\u8df5\u7684Ceph RBD\u4e3aK8s\u63d0\u4f9b\u5b58\u50a8\u5377<\/a>\u3001k8s\u4eceprivate registry\u62c9\u53d6image<\/a>\u3001k8s\u96c6\u7fa4\u7684\u5b89\u5168\u914d\u7f6e<\/a>\u7b49\u8fd8\u8981\u5728\u65b0\u96c6\u7fa4\u4e0a\u8fdb\u4e00\u6b65\u8bd5\u9a8c\uff0c\u76f4\u5230\u6ee1\u8db3\u6211\u4eec\u7684\u8981\u6c42\u3002<\/p>\n
 <\/p>\n
http:\/\/tonybai.com\/2016\/12\/30\/install-kubernetes-on-ubuntu-with-kubeadm-2\/<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6b64\u6587\u4e3a\u300a\u4f7f\u7528Kubeadm\u5b89\u88c5Kubernetes\u300b\u7684\u7b2c\u4e8c\u90e8\u5206\u3002\u6587\u7ae0\u7b2c\u4e00\u90e8\u5206\u5728\u8fd9\u91cc\u53ef\u4ee5\u770b\u5230\u3002 \u4e94\u3001weave network for pod \u7ecf\u8fc7\u4e0a\u9762\u90a3\u4e48\u591a\u6b21\u5c1d\u8bd5\uff0c\u7ed3\u679c\u662f\u4ee4\u4eba\u626b\u5174\u7684\u3002Weave network\u4f3c\u4e4e\u662f\u6700\u540e\u4e00\u9897\u6551\u547d\u7a3b\u8349\u4e86\u3002\u6709\u4e86\u524d\u9762\u7684\u94fa\u57ab\uff0c\u8fd9\u91cc\u5c31\u4e0d\u8be6\u7ec6\u5217\u51fa\u5404\u79cd\u547d\u4ee4\u7684\u8f93\u51fa\u7ec6\u8282\u4e86\u3002Weave network\u4e5f\u6709\u4e13\u95e8\u7684\u5b98\u65b9\u6587\u6863\u7528\u4e8e\u6307\u5bfc\u5982\u4f55\u4e0ekubernetes\u96c6\u7fa4\u96c6\u6210\uff0c\u6211\u4eec\u4e3b\u8981\u4e5f\u662f\u53c2\u8003\u5b83\u3002 1\u3001\u5b89\u88c5weave network add-on \u5728kubeadm reset\u540e\uff0c\u6211\u4eec\u91cd\u65b0\u521d\u59cb\u5316\u4e86\u96c6\u7fa4\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u5b89\u88c5weave network add-on\uff1a # kubectl apply -f https:\/\/git.io\/weave-kube […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-119","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts\/119","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=119"}],"version-history":[{"count":0,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts\/119\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=119"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=119"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}