そういや、Docker for Mac で Kubernetes が統合されていて、手軽に動かすことができたりします。 たぶん、Docker for Windows でもいけるとおもう。
6/12 現在、stable ではなくて、edge が必要です。
- Docker Hub から、 Docker CE for Mac (Edge) をダウンロード & インストールする
- Preference を開くと Kubernetes のタブができているので、
Enable Kubernetes
とかにチェックを入れて Apply を押下 - 心を無にして数分待ちます
- おわり
ぼくの Mac 非力なので、さすがにちょっともっさりする。動かしたくない場合は、Enable Kubernetes
を off にしましょう。
kubectl
はパスが通っており、
$ kubectl config get-contexts CURRENT NAME CLUSTER AUTHINFO NAMESPACE * docker-for-desktop docker-for-desktop-cluster docker-for-desktop $ kubectl describe nodes | head -29 Name: docker-for-desktop Roles: master Labels: beta.kubernetes.io/arch=amd64 beta.kubernetes.io/os=linux kubernetes.io/hostname=docker-for-desktop node-role.kubernetes.io/master= Annotations: node.alpha.kubernetes.io/ttl=0 volumes.kubernetes.io/controller-managed-attach-detach=true CreationTimestamp: Sat, 09 Jun 2018 16:18:34 +0900 Taints: <none> Unschedulable: false Conditions: Type Status LastHeartbeatTime LastTransitionTime Reason Message ---- ------ ----------------- ------------------ ------ ------- OutOfDisk False Thu, 14 Jun 2018 05:40:51 +0900 Sat, 09 Jun 2018 16:18:30 +0900 KubeletHasSufficientDisk kubelet has sufficient disk space available MemoryPressure False Thu, 14 Jun 2018 05:40:51 +0900 Sat, 09 Jun 2018 16:18:30 +0900 KubeletHasSufficientMemory kubelet has sufficient memory available DiskPressure False Thu, 14 Jun 2018 05:40:51 +0900 Sat, 09 Jun 2018 16:18:30 +0900 KubeletHasNoDiskPressure kubelet has no disk pressure PIDPressure False Thu, 14 Jun 2018 05:40:51 +0900 Sat, 09 Jun 2018 16:18:30 +0900 KubeletHasSufficientPID kubelet has sufficient PID available Ready True Thu, 14 Jun 2018 05:40:51 +0900 Sat, 09 Jun 2018 16:18:30 +0900 KubeletReady kubelet is posting ready status Addresses: InternalIP: 192.168.65.3 Hostname: docker-for-desktop Capacity: cpu: 2 ephemeral-storage: 61252420Ki hugepages-1Gi: 0 hugepages-2Mi: 0 memory: 2046932Ki pods: 110
諸々のコンテナが浮いています。
$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES fa235e26a3eb docker/kube-compose-api-server "/api-server --kubec…" 2 minutes ago Up 2 minutes k8s_compose_compose-api-75d86595dc-6hthm_docker_589417f5-6bb5-11e8-9690-025000000001_1 5b70dc4b906e docker/kube-compose-controller "/compose-controller…" 2 minutes ago Up 2 minutes k8s_compose_compose-6f784b699b-bjcqj_docker_5893f31c-6bb5-11e8-9690-025000000001_0 99cdc4a83577 6f7f2dc7fab5 "/sidecar --v=2 --lo…" 2 minutes ago Up 2 minutes k8s_sidecar_kube-dns-86f4d74b45-6qvss_kube-system_5892c0e7-6bb5-11e8-9690-025000000001_0 e26b75fc7c3e c2ce1ffb51ed "/dnsmasq-nanny -v=2…" 2 minutes ago Up 2 minutes k8s_dnsmasq_kube-dns-86f4d74b45-6qvss_kube-system_5892c0e7-6bb5-11e8-9690-025000000001_0 c059a047c023 80cc5ea4b547 "/kube-dns --domain=…" 2 minutes ago Up 2 minutes k8s_kubedns_kube-dns-86f4d74b45-6qvss_kube-system_5892c0e7-6bb5-11e8-9690-025000000001_0 4489eb10b93d 4261d315109d "/usr/local/bin/kube…" 3 minutes ago Up 2 minutes k8s_kube-proxy_kube-proxy-cf8dq_kube-system_589bc329-6bb5-11e8-9690-025000000001_0 b30110e654b0 k8s.gcr.io/pause-amd64:3.1 "/pause" 3 minutes ago Up 2 minutes k8s_POD_kube-proxy-cf8dq_kube-system_589bc329-6bb5-11e8-9690-025000000001_0 846f8502f4ad k8s.gcr.io/pause-amd64:3.1 "/pause" 3 minutes ago Up 3 minutes k8s_POD_kube-dns-86f4d74b45-6qvss_kube-system_5892c0e7-6bb5-11e8-9690-025000000001_0 c2ed95a9e38c k8s.gcr.io/pause-amd64:3.1 "/pause" 3 minutes ago Up 3 minutes k8s_POD_compose-api-75d86595dc-6hthm_docker_589417f5-6bb5-11e8-9690-025000000001_0 b1e52c46bae3 k8s.gcr.io/pause-amd64:3.1 "/pause" 3 minutes ago Up 3 minutes k8s_POD_compose-6f784b699b-bjcqj_docker_5893f31c-6bb5-11e8-9690-025000000001_0 303dfa913d0c 353b8f1d102e "kube-scheduler --ad…" 3 minutes ago Up 3 minutes k8s_kube-scheduler_kube-scheduler-docker-for-desktop_kube-system_ea66a171667ec4aaf1b274428a42a7cf_0 12f38c43e479 40c8d10b2d11 "kube-controller-man…" 3 minutes ago Up 3 minutes k8s_kube-controller-manager_kube-controller-manager-docker-for-desktop_kube-system_e7f3602541de405f8d08a19e40551a17_0 b5a093346273 e03746fe22c3 "kube-apiserver --ad…" 3 minutes ago Up 3 minutes k8s_kube-apiserver_kube-apiserver-docker-for-desktop_kube-system_fbdad7be3cd8f9184b611d030d354124_1 21ca56adc81f 52920ad46f5b "etcd --cert-file=/r…" 3 minutes ago Up 3 minutes k8s_etcd_etcd-docker-for-desktop_kube-system_0ad1cafd71e473bf71de8ee290d73e4a_0 fbba1a61f869 k8s.gcr.io/pause-amd64:3.1 "/pause" 3 minutes ago Up 3 minutes k8s_POD_kube-scheduler-docker-for-desktop_kube-system_ea66a171667ec4aaf1b274428a42a7cf_0 34fd1f8ca8a2 k8s.gcr.io/pause-amd64:3.1 "/pause" 3 minutes ago Up 3 minutes k8s_POD_etcd-docker-for-desktop_kube-system_0ad1cafd71e473bf71de8ee290d73e4a_0 fa395a8d6994 k8s.gcr.io/pause-amd64:3.1 "/pause" 3 minutes ago Up 3 minutes k8s_POD_kube-controller-manager-docker-for-desktop_kube-system_e7f3602541de405f8d08a19e40551a17_0 63102892ed1d k8s.gcr.io/pause-amd64:3.1 "/pause" 3 minutes ago Up 3 minutes k8s_POD_kube-apiserver-docker-for-desktop_kube-system_fbdad7be3cd8f9184b611d030d354124_0
まとめ
Docker Swarm はどうなってしまうのか。