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Move windows CheckHostAndContainerCompat() function from hcsshim locally to platform repo itself Signed-off-by: Kirtana Ashok <kiashok@microsoft.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| /* | ||
| Copyright The containerd Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package platforms | ||
|
|
||
| // osVersion is a wrapper for Windows version information | ||
| // https://msdn.microsoft.com/en-us/library/windows/desktop/ms724439(v=vs.85).aspx | ||
| type osVersion struct { | ||
| Version uint32 | ||
| MajorVersion uint8 | ||
| MinorVersion uint8 | ||
| Build uint16 | ||
| } | ||
|
|
||
| // Windows Client and Server build numbers. | ||
| // | ||
| // See: | ||
| // https://learn.microsoft.com/en-us/windows/release-health/release-information | ||
| // https://learn.microsoft.com/en-us/windows/release-health/windows-server-release-info | ||
| // https://learn.microsoft.com/en-us/windows/release-health/windows11-release-information | ||
| const ( | ||
| // rs5 (version 1809, codename "Redstone 5") corresponds to Windows Server | ||
| // 2019 (ltsc2019), and Windows 10 (October 2018 Update). | ||
| rs5 = 17763 | ||
|
|
||
| // v21H2Server corresponds to Windows Server 2022 (ltsc2022). | ||
| v21H2Server = 20348 | ||
|
|
||
| // v22H2Win11 corresponds to Windows 11 (2022 Update). | ||
| v22H2Win11 = 22621 | ||
| ) | ||
|
|
||
| // List of stable ABI compliant ltsc releases | ||
| // Note: List must be sorted in ascending order | ||
| var compatLTSCReleases = []uint16{ | ||
| v21H2Server, | ||
| } | ||
|
|
||
| // CheckHostAndContainerCompat checks if given host and container | ||
| // OS versions are compatible. | ||
| // It includes support for stable ABI compliant versions as well. | ||
| // Every release after WS 2022 will support the previous ltsc | ||
| // container image. Stable ABI is in preview mode for windows 11 client. | ||
| // Refer: https://learn.microsoft.com/en-us/virtualization/windowscontainers/deploy-containers/version-compatibility?tabs=windows-server-2022%2Cwindows-10#windows-server-host-os-compatibility | ||
| func checkHostAndContainerCompat(host, ctr osVersion) bool { | ||
| // check major minor versions of host and guest | ||
| if host.MajorVersion != ctr.MajorVersion || | ||
| host.MinorVersion != ctr.MinorVersion { | ||
| return false | ||
| } | ||
|
|
||
| // If host is < WS 2022, exact version match is required | ||
| if host.Build < v21H2Server { | ||
| return host.Build == ctr.Build | ||
| } | ||
|
|
||
| var supportedLtscRelease uint16 | ||
| for i := len(compatLTSCReleases) - 1; i >= 0; i-- { | ||
| if host.Build >= compatLTSCReleases[i] { | ||
| supportedLtscRelease = compatLTSCReleases[i] | ||
| break | ||
| } | ||
| } | ||
| return ctr.Build >= supportedLtscRelease && ctr.Build <= host.Build | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| /* | ||
| Copyright The containerd Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package platforms | ||
|
|
||
| import ( | ||
| "testing" | ||
| ) | ||
|
|
||
| // Test the platform compatibility of the different | ||
| // OS Versions considering two ltsc container image | ||
| // versions (ltsc2019, ltsc2022) | ||
| func Test_PlatformCompat(t *testing.T) { | ||
| for testName, tc := range map[string]struct { | ||
| hostOs uint16 | ||
| ctrOs uint16 | ||
| shouldRun bool | ||
| }{ | ||
| "RS5Host_ltsc2019": { | ||
| hostOs: rs5, | ||
| ctrOs: rs5, | ||
| shouldRun: true, | ||
| }, | ||
| "RS5Host_ltsc2022": { | ||
| hostOs: rs5, | ||
| ctrOs: v21H2Server, | ||
| shouldRun: false, | ||
| }, | ||
| "WS2022Host_ltsc2019": { | ||
| hostOs: v21H2Server, | ||
| ctrOs: rs5, | ||
| shouldRun: false, | ||
| }, | ||
| "WS2022Host_ltsc2022": { | ||
| hostOs: v21H2Server, | ||
| ctrOs: v21H2Server, | ||
| shouldRun: true, | ||
| }, | ||
| "Wind11Host_ltsc2019": { | ||
| hostOs: v22H2Win11, | ||
| ctrOs: rs5, | ||
| shouldRun: false, | ||
| }, | ||
| "Wind11Host_ltsc2022": { | ||
| hostOs: v22H2Win11, | ||
| ctrOs: v21H2Server, | ||
| shouldRun: true, | ||
| }, | ||
| } { | ||
| // Check if ltsc2019/ltsc2022 guest images are compatible on | ||
| // the given host OS versions | ||
| // | ||
| hostOSVersion := osVersion{ | ||
| MajorVersion: 10, | ||
| MinorVersion: 0, | ||
| Build: tc.hostOs, | ||
| } | ||
| ctrOSVersion := osVersion{ | ||
| MajorVersion: 10, | ||
| MinorVersion: 0, | ||
| Build: tc.ctrOs, | ||
| } | ||
| if checkHostAndContainerCompat(hostOSVersion, ctrOSVersion) != tc.shouldRun { | ||
| var expectedResultStr string | ||
| if !tc.shouldRun { | ||
| expectedResultStr = " NOT" | ||
| } | ||
| t.Fatalf("Failed %v: host %v should%s be able to run guest %v", testName, tc.hostOs, expectedResultStr, tc.ctrOs) | ||
| } | ||
| } | ||
| } |