More resources used by both runner and manager.
This commit is contained in:
parent
d9c2f6edd3
commit
2b471f3852
12 changed files with 62 additions and 22 deletions
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@ -1,5 +1,5 @@
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#
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#Fri Sep 01 16:56:14 CEST 2023
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#Thu Sep 14 09:53:57 CEST 2023
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org.eclipse.jdt.core.formatter.insert_space_after_ellipsis=insert
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org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_declarations=insert
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org.eclipse.jdt.core.formatter.insert_new_line_in_empty_annotation_declaration=insert
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@ -10,4 +10,5 @@ plugins {
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dependencies {
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implementation 'org.freemarker:freemarker:[2.3.32,2.4)'
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implementation 'io.kubernetes:client-java:[18.0.0,19)'
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}
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@ -0,0 +1,37 @@
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/*
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* VM-Operator
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* Copyright (C) 2023 Michael N. Lipp
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package org.jdrupes.vmoperator.util;
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/**
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* Some constants.
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*/
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public class Constants {
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/** The Constant VM_OP_NAME. */
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public static final String VM_OP_NAME = "vm-operator";
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/** The Constant VM_OP_GROUP. */
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public static final String VM_OP_GROUP = "vmoperator.jdrupes.org";
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/** The Constant VM_OP_CRD_NAME. */
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public static final String VM_OP_CRD_NAME = "vms." + VM_OP_GROUP;
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/** The Constant VM_OP_KIND_VM. */
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public static final String VM_OP_KIND_VM = "VirtualMachine";
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}
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@ -0,0 +1,275 @@
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/*
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* VM-Operator
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* Copyright (C) 2023 Michael N. Lipp
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package org.jdrupes.vmoperator.util;
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import com.google.gson.JsonArray;
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import com.google.gson.JsonElement;
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import com.google.gson.JsonObject;
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import com.google.gson.JsonPrimitive;
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import java.util.Optional;
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import java.util.function.Supplier;
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/**
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* Utility class for pointing to elements on a Gson (Json) tree.
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*/
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@SuppressWarnings({ "PMD.DataflowAnomalyAnalysis",
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"PMD.ClassWithOnlyPrivateConstructorsShouldBeFinal" })
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public class GsonPtr {
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private final JsonElement position;
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private GsonPtr(JsonElement root) {
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this.position = root;
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}
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/**
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* Create a new instance pointing to the given element.
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*
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* @param root the root
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* @return the Gson pointer
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*/
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@SuppressWarnings("PMD.ShortMethodName")
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public static GsonPtr to(JsonElement root) {
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return new GsonPtr(root);
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}
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/**
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* Create a new instance pointing to the {@link JsonElement}
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* selected by the given selectors. If a selector of type
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* {@link String} denotes a non-existant member of a
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* {@link JsonObject}, a new member (of type {@link JsonObject}
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* is added.
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*
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* @param selectors the selectors
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* @return the Gson pointer
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*/
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@SuppressWarnings({ "PMD.ShortMethodName", "PMD.PreserveStackTrace" })
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public GsonPtr to(Object... selectors) {
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JsonElement element = position;
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for (Object sel : selectors) {
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if (element instanceof JsonObject obj
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&& sel instanceof String member) {
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element = Optional.ofNullable(obj.get(member)).orElseGet(() -> {
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@SuppressWarnings("PMD.AvoidInstantiatingObjectsInLoops")
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var child = new JsonObject();
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obj.add(member, child);
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return child;
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});
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continue;
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}
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if (element instanceof JsonArray arr
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&& sel instanceof Integer index) {
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try {
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element = arr.get(index);
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} catch (IndexOutOfBoundsException e) {
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throw new IllegalStateException("Selected array index"
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+ " may not be empty.");
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}
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continue;
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}
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throw new IllegalStateException("Invalid selection");
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}
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return new GsonPtr(element);
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}
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/**
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* Returns {@link JsonElement} that the pointer points to.
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*
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* @return the result
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*/
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public JsonElement get() {
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return position;
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}
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/**
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* Returns {@link JsonElement} that the pointer points to,
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* casted to the given type.
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*
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* @param <T> the generic type
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* @param cls the cls
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* @return the result
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*/
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@SuppressWarnings({ "PMD.AvoidBranchingStatementAsLastInLoop" })
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public <T extends JsonElement> T get(Class<T> cls) {
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if (cls.isAssignableFrom(position.getClass())) {
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return cls.cast(position);
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}
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throw new IllegalArgumentException("Not positioned at element"
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+ " of desired type.");
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}
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/**
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* Returns the selected {@link JsonElement}, cast to the class
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* specified.
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*
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* @param <T> the generic type
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* @param cls the cls
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* @param selectors the selectors
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* @return the optional
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*/
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@SuppressWarnings({ "PMD.AvoidBranchingStatementAsLastInLoop" })
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public <T extends JsonElement> Optional<T>
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get(Class<T> cls, Object... selectors) {
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JsonElement element = position;
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for (Object sel : selectors) {
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if (element instanceof JsonObject obj
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&& sel instanceof String member) {
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element = obj.get(member);
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if (element == null) {
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return Optional.empty();
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}
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continue;
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}
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if (element instanceof JsonArray arr
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&& sel instanceof Integer index) {
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try {
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element = arr.get(index);
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} catch (IndexOutOfBoundsException e) {
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return Optional.empty();
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}
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continue;
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}
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return Optional.empty();
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}
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if (cls.isAssignableFrom(element.getClass())) {
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return Optional.of(cls.cast(element));
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}
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return Optional.empty();
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}
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/**
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* Returns the String value of the selected {@link JsonPrimitive}.
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*
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* @param selectors the selectors
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* @return the as string
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*/
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public Optional<String> getAsString(Object... selectors) {
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return get(JsonPrimitive.class, selectors)
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.map(JsonPrimitive::getAsString);
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}
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/**
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* Returns the Integer value of the selected {@link JsonPrimitive}.
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*
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* @param selectors the selectors
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* @return the as string
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*/
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public Optional<Integer> getAsInt(Object... selectors) {
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return get(JsonPrimitive.class, selectors)
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.map(JsonPrimitive::getAsInt);
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}
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/**
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* Returns the Long value of the selected {@link JsonPrimitive}.
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*
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* @param selectors the selectors
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* @return the as string
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*/
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public Optional<Long> getAsLong(Object... selectors) {
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return get(JsonPrimitive.class, selectors)
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.map(JsonPrimitive::getAsLong);
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}
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/**
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* Sets the selected value. This pointer must point to a
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* {@link JsonObject} or {@link JsonArray}. The selector must
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* be a {@link String} or an integer respectively.
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*
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* @param selector the selector
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* @param value the value
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* @return the Gson pointer
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*/
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public GsonPtr set(Object selector, JsonElement value) {
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if (position instanceof JsonObject obj
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&& selector instanceof String member) {
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obj.add(member, value);
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return this;
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}
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if (position instanceof JsonArray arr
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&& selector instanceof Integer index) {
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if (index >= arr.size()) {
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arr.add(value);
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} else {
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arr.set(index, value);
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}
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return this;
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}
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throw new IllegalStateException("Invalid selection");
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}
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/**
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* Short for `set(selector, new JsonPrimitive(value))`.
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*
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* @param selector the selector
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* @param value the value
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* @return the gson ptr
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* @see #set(Object, JsonElement)
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*/
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public GsonPtr set(Object selector, String value) {
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return set(selector, new JsonPrimitive(value));
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}
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/**
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* Same as {@link #set(Object, JsonElement)}, but sets the value
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* only if it doesn't exist yet, else returns the existing value.
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* If this pointer points to a {@link JsonArray} and the selector
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* if larger than or equal to the size of the array, the supplied
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* value will be appended.
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*
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* @param <T> the generic type
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* @param selector the selector
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* @param supplier the supplier of the missing value
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* @return the existing or supplied value
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*/
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@SuppressWarnings("unchecked")
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public <T extends JsonElement> T
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computeIfAbsent(Object selector, Supplier<T> supplier) {
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if (position instanceof JsonObject obj
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&& selector instanceof String member) {
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return Optional.ofNullable((T) obj.get(member)).orElseGet(() -> {
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var res = supplier.get();
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obj.add(member, res);
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return res;
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});
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}
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if (position instanceof JsonArray arr
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&& selector instanceof Integer index) {
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if (index >= arr.size()) {
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var res = supplier.get();
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arr.add(res);
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return res;
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}
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return (T) arr.get(index);
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}
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throw new IllegalStateException("Invalid selection");
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||||
}
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/**
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* Short for `computeIfAbsent(selector, () -> new JsonPrimitive(value))`.
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*
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* @param selector the selector
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* @param value the value
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* @return the Gson pointer
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*/
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public GsonPtr getOrSet(Object selector, String value) {
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computeIfAbsent(selector, () -> new JsonPrimitive(value));
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||||
return this;
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||||
}
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||||
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||||
}
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@ -0,0 +1,162 @@
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/*
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* VM-Operator
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* Copyright (C) 2023 Michael N. Lipp
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*
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* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Affero General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Affero General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
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||||
*/
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package org.jdrupes.vmoperator.util;
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import io.kubernetes.client.common.KubernetesListObject;
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import io.kubernetes.client.common.KubernetesObject;
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import io.kubernetes.client.custom.V1Patch;
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import io.kubernetes.client.openapi.ApiClient;
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import io.kubernetes.client.openapi.ApiException;
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import io.kubernetes.client.openapi.models.V1ConfigMap;
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import io.kubernetes.client.openapi.models.V1ConfigMapList;
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import io.kubernetes.client.openapi.models.V1ObjectMeta;
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import io.kubernetes.client.openapi.models.V1PersistentVolumeClaim;
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import io.kubernetes.client.openapi.models.V1PersistentVolumeClaimList;
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import io.kubernetes.client.openapi.models.V1Pod;
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import io.kubernetes.client.openapi.models.V1PodList;
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import io.kubernetes.client.util.generic.GenericKubernetesApi;
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import io.kubernetes.client.util.generic.options.DeleteOptions;
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import io.kubernetes.client.util.generic.options.PatchOptions;
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import java.util.Optional;
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/**
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||||
* Helpers for K8s API.
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*/
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||||
@SuppressWarnings({ "PMD.ShortClassName", "PMD.UseUtilityClass" })
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||||
public class K8s {
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||||
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||||
/**
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||||
* Given a groupVersion, returns only the version.
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||||
*
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* @param groupVersion the group version
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* @return the string
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||||
*/
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||||
public static String version(String groupVersion) {
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return groupVersion.substring(groupVersion.lastIndexOf('/') + 1);
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||||
}
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||||
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||||
/**
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||||
* Get PVC API.
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||||
*
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||||
* @param client the client
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||||
* @return the generic kubernetes api
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||||
*/
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||||
public static GenericKubernetesApi<V1PersistentVolumeClaim,
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V1PersistentVolumeClaimList> pvcApi(ApiClient client) {
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||||
return new GenericKubernetesApi<>(V1PersistentVolumeClaim.class,
|
||||
V1PersistentVolumeClaimList.class, "", "v1",
|
||||
"persistentvolumeclaims", client);
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||||
}
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||||
|
||||
/**
|
||||
* Get config map API.
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||||
*
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||||
* @param client the client
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||||
* @return the generic kubernetes api
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||||
*/
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||||
public static GenericKubernetesApi<V1ConfigMap,
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||||
V1ConfigMapList> cmApi(ApiClient client) {
|
||||
return new GenericKubernetesApi<>(V1ConfigMap.class,
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||||
V1ConfigMapList.class, "", "v1", "configmaps", client);
|
||||
}
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||||
|
||||
/**
|
||||
* Get pod API.
|
||||
*
|
||||
* @param client the client
|
||||
* @return the generic kubernetes api
|
||||
*/
|
||||
public static GenericKubernetesApi<V1Pod, V1PodList>
|
||||
podApi(ApiClient client) {
|
||||
return new GenericKubernetesApi<>(V1Pod.class, V1PodList.class, "",
|
||||
"v1", "pods", client);
|
||||
}
|
||||
|
||||
/**
|
||||
* Get an object from its metadata.
|
||||
*
|
||||
* @param <T> the generic type
|
||||
* @param <LT> the generic type
|
||||
* @param api the api
|
||||
* @param meta the meta
|
||||
* @return the object
|
||||
*/
|
||||
public static <T extends KubernetesObject, LT extends KubernetesListObject>
|
||||
Optional<T>
|
||||
get(GenericKubernetesApi<T, LT> api, V1ObjectMeta meta) {
|
||||
var response = api.get(meta.getNamespace(), meta.getName());
|
||||
if (response.isSuccess()) {
|
||||
return Optional.of(response.getObject());
|
||||
}
|
||||
return Optional.empty();
|
||||
}
|
||||
|
||||
/**
|
||||
* Delete an object.
|
||||
*
|
||||
* @param <T> the generic type
|
||||
* @param <LT> the generic type
|
||||
* @param api the api
|
||||
* @param object the object
|
||||
*/
|
||||
public static <T extends KubernetesObject, LT extends KubernetesListObject>
|
||||
void delete(GenericKubernetesApi<T, LT> api, T object)
|
||||
throws ApiException {
|
||||
api.delete(object.getMetadata().getNamespace(),
|
||||
object.getMetadata().getName()).throwsApiException();
|
||||
}
|
||||
|
||||
/**
|
||||
* Delete an object.
|
||||
*
|
||||
* @param <T> the generic type
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||||
* @param <LT> the generic type
|
||||
* @param api the api
|
||||
* @param object the object
|
||||
*/
|
||||
public static <T extends KubernetesObject, LT extends KubernetesListObject>
|
||||
void delete(GenericKubernetesApi<T, LT> api, T object,
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||||
DeleteOptions options) throws ApiException {
|
||||
api.delete(object.getMetadata().getNamespace(),
|
||||
object.getMetadata().getName(), options).throwsApiException();
|
||||
}
|
||||
|
||||
/**
|
||||
* Apply the given patch data.
|
||||
*
|
||||
* @param <T> the generic type
|
||||
* @param <LT> the generic type
|
||||
* @param api the api
|
||||
* @param existing the existing
|
||||
* @param update the update
|
||||
* @throws ApiException the api exception
|
||||
*/
|
||||
public static <T extends KubernetesObject, LT extends KubernetesListObject>
|
||||
T apply(GenericKubernetesApi<T, LT> api, T existing, String update)
|
||||
throws ApiException {
|
||||
PatchOptions opts = new PatchOptions();
|
||||
opts.setForce(true);
|
||||
opts.setFieldManager("kubernetes-java-kubectl-apply");
|
||||
var response = api.patch(existing.getMetadata().getNamespace(),
|
||||
existing.getMetadata().getName(), V1Patch.PATCH_FORMAT_APPLY_YAML,
|
||||
new V1Patch(update), opts).throwsApiException();
|
||||
return response.getObject();
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Add table
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Reference in a new issue