Kontainer Windows di Red Hat OpenShift
Pada akhir tahun lalu, Red Hat OpenShift menerima versi publik dari fungsionalitas Windows Container Support, yang memungkinkan Anda untuk menyertakan Windows Compute Nodes di cluster OpenShift Container Platform untuk menjalankan beban kerja dalam bentuk container Windows dan mengelola container ini. dengan cara yang sama seperti -containers Linux. Hari ini kita akan membicarakan hal ini sedikit lebih detail.
Sejarah singkat (sangat) wadah Windows
Pada tahun 2016, Microsoft memutuskan untuk mengembangkan mesin kontainernya sendiri yang mengimplementasikan spesifikasi Docker sehingga kontainer Windows dapat diluncurkan menggunakan alat yang sudah dikenal, misalnya, seperti ini:
docker run -it microsoft/windowsservercore cmd
Hasilnya, Microsoft membuat dua implementasi container Windows:
Proses kontainer (alias Windows Server Containers, WSC);
Kontainer Hyper-V.
, WSC. Windows Containers :
Windows-
Windows- – Linux, . , Nano Windows Server Core, , , PowerShell PowerShell Core .NET Core.
GUI- – Windows- UI, .
Windows Server. Windows- Windows, DLL. , Windows-. Linux- .
Windows-
. Windows Server , C# . Windows Server .
Windows-. () Microsoft SQL IIS, ? , bare metal, , , .
, agility Windows-. – . , , , Windows- «» Windows. Visual Studio Visual Studio Code, : OpenShift on premises, OpenShift Azure AWS.
Windows- OpenShift
5R- (Rehost, Refactor, Revise, Rebuild Replace), Gartner, Windows- OpenShift:
5R |
OpenShift |
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Rehost |
OpenShift Virtualization |
Windows OpenShift |
, |
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Refactor |
Windows Machine Config Operator |
.Net framework Windows Server Containers Windows Worker Node OpenShift |
, OpenShift |
Windows- Windows Server 2019 |
Rearchitect |
RHEL/Red Hat CoreOS |
.Net framework to .Net Core RHEL- OpenShift |
OpenShift, |
|
Rebuild |
RHEL/Red Hat CoreOS |
Linux- RHEL- OpenShift |
OpenShift, |
, |
Windows Machine Config Operator (WMCO)
WMCO – Windows OpenShift. Windows worker node (scheduling) Windows-. WMCO OpenShift 4.6 OVN Kubernetes.
, WMCO
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Red Hat OpenShift Container Platform (OCP) on Azure |
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OCP on AWS |
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OCP on vSphere |
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OCP on Bare metal |
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OCP on Red Hat Virtualization |
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OCP on Red Hat OpenStack Platform |
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OpenShift (Azure Red Hat OpenShift, OpenShift Dedicated ) |
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, Windows Worker Node
WMCO Windows Server Long-Term Servicing Channel (LTSC): Windows Server 2019 ( 10.0.17763.1457 ).
Windows-
Windows- OpenShift WMCO, Linux-, Linux- Control Plane Compute, Windows- .
Windows Compute Node, Windows-. Windows Compute Node MachineSet Windows Server. (label) Windows Docker- (Kubernetes Docker Kubernetes Windows- Containerd).
WMCO Windows- Windows MachineSet , WMCO Windows, Compute Node.
WMCO , Windows. WMCO user data secret, Windows MachineSet. WMCO user data secret , . , Windows SSH.
, , Windows- , Linux, Windows- , taints, tolerations node selectors. Windows Linux, Windows- Windows RuntimeClass.
Windows-
, , , , . Windows- Windows OpenShift :
● C:\var\log\kube-proxy\kube-proxy.exe.INFO
● C:\var\log\kube-proxy\kube-proxy.exe.ERROR
● C:\var\log\kube-proxy\kube-proxy.exe.WARNING
● C:\var\log\hybrid-overlay\hybrid-overlay.log
● C:\var\log\kubelet\kubelet.log
● %APPDATA%\Local\Docker\log.txt
OpenShift Container Platform Windows-pod’ :
$ oc logs -f windows-pod-name -n openshift-windows
must-gather :
Windows-pod’ - OpenShift Container Platform .