Collaborate on Docker to Bring Next Generation Linux Container Enhancements to OpenShift Platform-as-a-Service (2013-09) ・ (Docker Inc.がdotCloudと名乗っていた頃に出したプレスリリース) ・ FedoraにDockerのrpmを用意する ・ ストレージのサポート拡充のため一緒に開発 ・ OpenShift(当時はv2)のCartridgeの代わりにDockerを使えるようにする ・ Docker and Red Hat Expand Collaboration Around Container Technologies (2014-04) ・ RHEL7 BetaにDockerのrpmを含める ・ Red Hatによるコンテナイメージの認定制度を作る ・ OpenShiftのDockerサポートを進める ・ RHELのサブスクリプションで、Docker Inc.のDeveloper supportを受けられる
-rwxrwxr-x. 1 ori ori 0 Jan 13 18:24 1 -rw-rw-r--. 1 ori ori 0 Jan 13 18:24 2 $ ls -l upper total 0 -rwxrwxr-x. 1 ori ori 0 Jan 13 18:24 1 ▸ ファイルの拡張属性 $ sudo getfattr -dm- upper/* # file: upper/1 security.selinux="unconfined_u:object_r:user_home_t:s0" trusted.overlay.metacopy="" trusted.overlay.origin=0sAPshAIGjB0b1hnJJGJO2Y7/DMyHj0KMPQQAAAADEy6gr メタデータのみがcopy upされたファイルには、拡 張属性 trusted.overlay.metacopy が設定される
CONTAINER ID IMAGE CREATED STATE NAME ATTEMPT POD ID ab154ea6f90e6 f6d0b4767a6c466c178bf718f99bea0d3742b26679081e52dbf8e0c7c4c42d74 About an hour ago Running nginx 0 37cfe82e21c69 e750052642fc5 bfe3a36ebd2528b454be6aebece806db5b40407b833e2af9617bf39afaff8c16 17 hours ago Running coredns 0 ff5675b8171a3 6814e215cb5a4 9c10b22775a295fd1484f95a2f37037502d00edaa209b97574535676a6ceabe1 17 hours ago Running weave 1 f52553a8ebc62 <snip> $ sudo /usr/local/bin/runc list | grep ab154ea6f90e6 ab154ea6f90e6fe8b5898be1ef0795b2990941fd8f3bc573921e7fe01d4e64eb 24509 running /run/containers/storage/overlay-containers/ab154ea6f90e6fe8b5898be1ef0795b2990941fd8f3bc573921e7fe01d4e64eb/userdata 2021-01-27T06:31:19.556045212Z root $ systemctl status crio-ab154ea6f90e6fe8b5898be1ef0795b2990941fd8f3bc573921e7fe01d4e64eb.scope | grep -A2 CGroup CGroup: /kubepods.slice/kubepods-besteffort.slice/kubepods-besteffort-pod1e06c6eb_8a7c_4b4d_b0b7_96e843a3ce15.slice/crio-ab154 ea6f90e6fe8b5898be1ef0795b2990941fd8f3bc573921e7fe01d4e64eb.scope ├─24509 nginx: master process nginx -g daemon off; └─24558 nginx: worker process
pods POD ID CREATED STATE NAME NAMESPACE ATTEMPT 4abff760c2454 2 hours ago Ready nginx-deployment-7b54d48599-bnb2s default 0 1a4e464cb9285 16 hours ago Ready coredns-74ff55c5b-wmpws kube-system 0 ca18c1b45b2ba 16 hours ago Ready client default 0 e2296056797bd 16 hours ago Ready weave-net-wk8mp kube-system 0 da351f219f338 16 hours ago Ready kube-proxy-wstbz kube-system 0 $ sudo /usr/local/bin/runc list | grep 4abff760c2454
/run/containerd/containerd.sock pods POD ID CREATED STATE NAME NAMESPACE ATTEMPT e403c69ae4d05 17 hours ago Ready nginx-deployment-7fbd46f9ff-jpnjf default 1 d876d9ff1c42b 17 hours ago Ready client default 1 a1c0ee77cf87b 17 hours ago Ready coredns-74ff55c5b-qntmc kube-system 1 b0b048a354e07 17 hours ago Ready kube-proxy-ls9f2 kube-system 1 fb0ef49b5556a 17 hours ago Ready weave-net-m6js2 kube-system 1 b1c90b5757f9d 6 days ago NotReady client default 0 6a415a369243d 6 days ago NotReady nginx-deployment-7fbd46f9ff-jpnjf default 0 8b6246d9ca647 6 days ago NotReady coredns-74ff55c5b-qntmc kube-system 0 1f60446957069 6 days ago NotReady weave-net-m6js2 kube-system 0 e02564e941be6 6 days ago NotReady kube-proxy-ls9f2 kube-system 0 $ sudo runc --root /run/containerd/runc/k8s.io list | grep e403c69ae4d05 e403c69ae4d059f27f980f5f081af81651bbf2681999bfe4eb7742fcbe0d215b 3194 running /run/containerd/io.containerd.runtime.v2.task/k8s.io/e403c69ae4d059f27f980f5f081af81651bbf2681999bfe4eb7742fcbe0d215b 2021-01-26T15:40:44.820717662Z root
------ ---- ---- ------- Normal Scheduled 19s default-scheduler Successfully assigned default/top-deployment-946458c86-jcswj to crio-node2 Warning FailedCreatePodSandBox 18s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to create pod network sandbox k8s_top-deployment-946458c86-jcswj_default_78c99147-1d5f-4827-bc59-836afae0c83c_0(d3b66c67821677c227632a4e96b6e20eb674 dbd8d6ab3a48a522923f2d4ce718): initializing veth: error setting up interface: open /proc/sys/net/ipv4/neigh/eth0/base_reachable_time: no such file or directory
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between OCI conformant runtimes and the kubelet. Specifically, it implements the Kubelet Container Runtime Interface (CRI) using OCI conformant runtimes. The scope of crio is tied to the scope of the CRI. ・ 1. Support multiple image formats including the existing Docker and OCI image formats. ・ 2. Support for multiple means to download images including trust & image verification. ・ 3. Container image management (managing image layers, overlay filesystems, etc). ・ 4. Container process lifecycle management. ・ 5. Monitoring and logging required to satisfy the CRI. ・ 6. Resource isolation as required by the CRI.` ▸