DaanHoogland commented on a change in pull request #3680: [WIP: DO NOT MERGE] CloudStack Kubernetes Service URL: https://github.com/apache/cloudstack/pull/3680#discussion_r365759053
########## File path: plugins/integrations/kubernetes-service/src/main/java/com/cloud/kubernetes/version/KubernetesVersionManagerImpl.java ########## @@ -0,0 +1,377 @@ +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you 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 com.cloud.kubernetes.version; + +import java.lang.reflect.Field; +import java.util.ArrayList; +import java.util.List; + +import javax.inject.Inject; + +import org.apache.cloudstack.api.ApiConstants; +import org.apache.cloudstack.api.command.admin.kubernetes.version.AddKubernetesSupportedVersionCmd; +import org.apache.cloudstack.api.command.admin.kubernetes.version.DeleteKubernetesSupportedVersionCmd; +import org.apache.cloudstack.api.command.user.iso.DeleteIsoCmd; +import org.apache.cloudstack.api.command.user.iso.RegisterIsoCmd; +import org.apache.cloudstack.api.command.user.kubernetes.version.ListKubernetesSupportedVersionsCmd; +import org.apache.cloudstack.api.response.KubernetesSupportedVersionResponse; +import org.apache.cloudstack.api.response.ListResponse; +import org.apache.log4j.Logger; + +import com.cloud.api.query.dao.TemplateJoinDao; +import com.cloud.api.query.vo.TemplateJoinVO; +import com.cloud.dc.DataCenterVO; +import com.cloud.dc.dao.DataCenterDao; +import com.cloud.event.ActionEvent; +import com.cloud.exception.InvalidParameterValueException; +import com.cloud.exception.ResourceAllocationException; +import com.cloud.kubernetes.cluster.KubernetesClusterService; +import com.cloud.kubernetes.cluster.KubernetesClusterVO; +import com.cloud.kubernetes.cluster.dao.KubernetesClusterDao; +import com.cloud.kubernetes.version.dao.KubernetesSupportedVersionDao; +import com.cloud.storage.Storage; +import com.cloud.storage.VMTemplateVO; +import com.cloud.storage.VMTemplateZoneVO; +import com.cloud.storage.dao.VMTemplateDao; +import com.cloud.storage.dao.VMTemplateZoneDao; +import com.cloud.template.TemplateApiService; +import com.cloud.template.VirtualMachineTemplate; +import com.cloud.utils.component.ComponentContext; +import com.cloud.utils.component.ManagerBase; +import com.cloud.utils.exception.CloudRuntimeException; +import com.google.common.base.Strings; + +public class KubernetesVersionManagerImpl extends ManagerBase implements KubernetesVersionService { + public static final Logger LOGGER = Logger.getLogger(KubernetesVersionManagerImpl.class.getName()); + + @Inject + private KubernetesSupportedVersionDao kubernetesSupportedVersionDao; + @Inject + private KubernetesClusterDao kubernetesClusterDao; + @Inject + private VMTemplateDao templateDao; + @Inject + private TemplateJoinDao templateJoinDao; + @Inject + private VMTemplateZoneDao templateZoneDao; + @Inject + private DataCenterDao dataCenterDao; + @Inject + private TemplateApiService templateService; + + private KubernetesSupportedVersionResponse createKubernetesSupportedVersionResponse(final KubernetesSupportedVersion kubernetesSupportedVersion) { + KubernetesSupportedVersionResponse response = new KubernetesSupportedVersionResponse(); + response.setObjectName("kubernetessupportedversion"); + response.setId(kubernetesSupportedVersion.getUuid()); + response.setName(kubernetesSupportedVersion.getName()); + response.setSemanticVersion(kubernetesSupportedVersion.getSemanticVersion()); + DataCenterVO zone = dataCenterDao.findById(kubernetesSupportedVersion.getZoneId()); + if (zone != null) { + response.setZoneId(zone.getUuid()); + response.setZoneName(zone.getName()); + } + if (compareSemanticVersions(kubernetesSupportedVersion.getSemanticVersion(), + KubernetesClusterService.MIN_KUBERNETES_VERSION_HA_SUPPORT)>=0) { + response.setSupportsHA(true); + } else { + response.setSupportsHA(false); + } + TemplateJoinVO template = templateJoinDao.findById(kubernetesSupportedVersion.getIsoId()); + response.setIsoId(template.getUuid()); + response.setIsoName(template.getName()); + response.setIsoState(template.getState().toString()); + return response; + } + + private ListResponse<KubernetesSupportedVersionResponse> createKubernetesSupportedVersionListResponse(List<KubernetesSupportedVersionVO> versions) { + List<KubernetesSupportedVersionResponse> responseList = new ArrayList<>(); + for (KubernetesSupportedVersionVO version : versions) { + responseList.add(createKubernetesSupportedVersionResponse(version)); + } + ListResponse<KubernetesSupportedVersionResponse> response = new ListResponse<>(); + response.setResponses(responseList); + return response; + } + + private static boolean isSemanticVersion(final String version) { + if(!version.matches("[0-9]+(\\.[0-9]+)*")) { + return false; + } + String[] parts = version.split("\\."); + if (parts.length < 3) { + return false; + } + return true; + } + + public static int compareSemanticVersions(String v1, String v2) throws IllegalArgumentException { + if (Strings.isNullOrEmpty(v1) || Strings.isNullOrEmpty(v2)) { + throw new IllegalArgumentException(String.format("Invalid version comparision with versions %s, %s", v1, v2)); + } + if(!isSemanticVersion(v1)) { + throw new IllegalArgumentException(String.format("Invalid version format, %s", v1)); + } + if(!isSemanticVersion(v2)) { + throw new IllegalArgumentException(String.format("Invalid version format, %s", v2)); + } + String[] thisParts = v1.split("\\."); + String[] thatParts = v2.split("\\."); + int length = Math.max(thisParts.length, thatParts.length); + for(int i = 0; i < length; i++) { + int thisPart = i < thisParts.length ? + Integer.parseInt(thisParts[i]) : 0; + int thatPart = i < thatParts.length ? + Integer.parseInt(thatParts[i]) : 0; + if(thisPart < thatPart) + return -1; + if(thisPart > thatPart) + return 1; + } + return 0; + } + + public static boolean canUpgradeKubernetesVersion(String currentVersion, String upgradeVersion) throws IllegalArgumentException { + int versionDiff = compareSemanticVersions(upgradeVersion, currentVersion); + if (versionDiff == 0) { + throw new IllegalArgumentException(String.format("Kubernetes clusters can not be upgraded, current version: %s, upgrade version: %s", currentVersion, upgradeVersion)); + } else if (versionDiff < 0) { + throw new IllegalArgumentException(String.format("Kubernetes clusters can not be downgraded, current version: %s, upgrade version: %s", currentVersion, upgradeVersion)); + } + String[] thisParts = currentVersion.split("\\."); + String[] thatParts = upgradeVersion.split("\\."); + int majorVerDiff = Integer.parseInt(thatParts[0]) - Integer.parseInt(thisParts[0]); + int minorVerDiff = Integer.parseInt(thatParts[1]) - Integer.parseInt(thisParts[1]); + // You only can upgrade from one MINOR version to the next MINOR version, or between PATCH versions of the same MINOR. + // That is, you cannot skip MINOR versions when you upgrade. + // For example, you can upgrade from 1.y to 1.y+1, but not from 1.y to 1.y+2 Review comment: I think this would be good as javadoc ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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