Add basic Strimzi pom.xml file with the usual plugins, checkstyle, et…

…c. (#10)

Signed-off-by: Jakub Scholz <[email protected]>

.azure/build-pipeline.yaml

@@ -0,0 +1,63 @@
+# Triggers
+trigger:
+  branches:
+    include:
+      - 'main'
+      - 'release-*'
+  tags:
+    include:
+      - '*'
+pr:
+  autoCancel: true
+  branches:
+    include:
+      - '*'
+# Jobs
+jobs:
+  - job: 'build_and_test'
+    displayName: 'Build & Test'
+    # Strategy for the job
+    strategy:
+      matrix:
+        'java-11':
+          jdk_version: '11'
+        'java-17':
+          jdk_version: '17'
+    # Set timeout for jobs
+    timeoutInMinutes: 60
+    # Base system
+    pool:
+      vmImage: Ubuntu-22.04
+    # Variables
+    variables:
+      MVN_CACHE_FOLDER: $(HOME)/.m2/repository
+      MVN_ARGS: '-e -V -B'
+    # Pipeline steps
+    steps:
+      - task: Cache@2
+        inputs:
+          key: 'maven-cache | $(System.JobName) | **/pom.xml'
+          restoreKeys: |
+            maven-cache | $(System.JobName)
+            maven-cache
+          path: $(HOME)/.m2/repository
+        displayName: Maven cache
+      - template: 'templates/setup_java.yaml'
+        parameters:
+          JDK_VERSION: $(jdk_version)
+      - template: 'templates/setup_minikube.yaml'
+      - bash: ".azure/scripts/build.sh"
+        env:
+          BUILD_REASON: $(Build.Reason)
+          BRANCH: $(Build.SourceBranch)
+          GPG_PASSPHRASE: $(GPG_PASSPHRASE)
+          GPG_SIGNING_KEY: $(GPG_SIGNING_KEY)
+          NEXUS_USERNAME: $(NEXUS_USERNAME)
+          NEXUS_PASSWORD: $(NEXUS_PASSWORD)
+        displayName: "Build and test"
+      - task: PublishTestResults@2
+        inputs:
+          testResultsFormat: JUnit
+          testResultsFiles: '**/TEST-*.xml'
+          testRunTitle: "Unit & Integration tests"
+        condition: always()

.azure/scripts/build.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+set -e
+
+echo "Build reason: ${BUILD_REASON}"
+echo "Source branch: ${BRANCH}"
+
+# The first segment of the version number is '1' for releases < 9; then '9', '10', '11', ...
+JAVA_MAJOR_VERSION=$(java -version 2>&1 | sed -E -n 's/.* version "([0-9]*).*$/\1/p')
+if [ "${JAVA_MAJOR_VERSION}" -eq "11" ] ; then
+  # some parts of the workflow should be done only one on the main build which is currently Java 11
+  export MAIN_BUILD="TRUE"
+  echo "Running main build"
+fi
+
+# Build with Maven
+# shellcheck disable=SC2086
+mvn $MVN_ARGS install
+# shellcheck disable=SC2086
+mvn $MVN_ARGS spotbugs:check
+
+# Push to Nexus
+if [ "$BUILD_REASON" == "PullRequest" ] ; then
+    echo "Building Pull Request - nothing to push"
+elif [[ "$BRANCH" != "refs/tags/"* ]] && [ "$BRANCH" != "refs/heads/main" ]; then
+    echo "Not in main branch or in release tag - nothing to push"
+else
+   if [ "${MAIN_BUILD}" = "TRUE" ] ; then
+       echo "In main branch or in release tag - pushing to nexus"
+       ./.azure/scripts/push-to-nexus.sh
+   fi
+fi

.azure/scripts/push-to-nexus.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+export GPG_TTY=$(tty)
+
+echo $GPG_SIGNING_KEY | base64 -d > signing.gpg
+gpg --batch --import signing.gpg
+
+GPG_EXECUTABLE=gpg mvn $MVN_ARGS -DskipTests -s ./.azure/scripts/settings.xml -P ossrh verify deploy
+
+rm -rf signing.gpg
+gpg --delete-keys
+gpg --delete-secret-keys

.azure/scripts/settings.xml

@@ -0,0 +1,9 @@
+<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0">
+    <servers>
+        <server>
+            <id>ossrh</id>
+            <username>${env.NEXUS_USERNAME}</username>
+            <password>${env.NEXUS_PASSWORD}</password>
+        </server>
+    </servers>
+</settings>

.azure/scripts/setup-kubernetes.sh

@@ -0,0 +1,104 @@
+#!/usr/bin/env bash
+set -xe
+
+rm -rf ~/.kube
+
+KUBE_VERSION=${KUBE_VERSION:-1.16.0}
+COPY_DOCKER_LOGIN=${COPY_DOCKER_LOGIN:-"false"}
+
+DEFAULT_MINIKUBE_MEMORY=$(free -m | grep "Mem" | awk '{print $2}')
+DEFAULT_MINIKUBE_CPU=$(awk '$1~/cpu[0-9]/{usage=($2+$4)*100/($2+$4+$5); print $1": "usage"%"}' /proc/stat | wc -l)
+
+MINIKUBE_MEMORY=${MINIKUBE_MEMORY:-$DEFAULT_MINIKUBE_MEMORY}
+MINIKUBE_CPU=${MINIKUBE_CPU:-$DEFAULT_MINIKUBE_CPU}
+
+echo "[INFO] MINIKUBE_MEMORY: ${MINIKUBE_MEMORY}"
+echo "[INFO] MINIKUBE_CPU: ${MINIKUBE_CPU}"
+
+function install_kubectl {
+    if [ "${KUBECTL_VERSION:-latest}" = "latest" ]; then
+        KUBECTL_VERSION=$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)
+    fi
+    curl -Lo kubectl https://storage.googleapis.com/kubernetes-release/release/${KUBECTL_VERSION}/bin/linux/amd64/kubectl && chmod +x kubectl
+    sudo cp kubectl /usr/local/bin
+}
+
+function install_nsenter {
+    # Pre-req for helm
+    curl https://mirrors.edge.kernel.org/pub/linux/utils/util-linux/v${NSENTER_VERSION}/util-linux-${NSENTER_VERSION}.tar.gz -k | tar -zxf-
+    cd util-linux-${NSENTER_VERSION}
+    ./configure --without-ncurses
+    make nsenter
+    sudo cp nsenter /usr/bin
+}
+
+function label_node {
+	# It should work for all clusters
+	for nodeName in $(kubectl get nodes -o custom-columns=:.metadata.name --no-headers);
+	do
+		echo ${nodeName};
+		kubectl label node ${nodeName} rack-key=zone;
+	done
+}
+
+if [ "$KUBE_CLUSTER" = "minikube" ]; then
+    install_kubectl
+    if [ "${MINIKUBE_VERSION:-latest}" = "latest" ]; then
+        MINIKUBE_URL=https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
+    else
+        MINIKUBE_URL=https://github.com/kubernetes/minikube/releases/download/${MINIKUBE_VERSION}/minikube-linux-amd64
+    fi
+
+    if [ "$KUBE_VERSION" != "latest" ] && [ "$KUBE_VERSION" != "stable" ]; then
+        KUBE_VERSION="v${KUBE_VERSION}"
+    fi
+
+    curl -Lo minikube ${MINIKUBE_URL} && chmod +x minikube
+    sudo cp minikube /usr/bin
+
+    export MINIKUBE_WANTUPDATENOTIFICATION=false
+    export MINIKUBE_WANTREPORTERRORPROMPT=false
+    export MINIKUBE_HOME=$HOME
+    export CHANGE_MINIKUBE_NONE_USER=true
+
+    mkdir $HOME/.kube || true
+    touch $HOME/.kube/config
+
+    docker run -d -p 5000:5000 registry
+
+    export KUBECONFIG=$HOME/.kube/config
+    # We can turn on network polices support by adding the following options --network-plugin=cni --cni=calico
+    # We have to allow trafic for ITS when NPs are turned on
+    # We can allow NP after Strimzi#4092 which should fix some issues on STs side
+    minikube start --vm-driver=docker --kubernetes-version=${KUBE_VERSION} \
+      --insecure-registry=localhost:5000 --extra-config=apiserver.authorization-mode=Node,RBAC \
+      --cpus=${MINIKUBE_CPU} --memory=${MINIKUBE_MEMORY}
+
+    if [ $? -ne 0 ]
+    then
+        echo "Minikube failed to start or RBAC could not be properly set up"
+        exit 1
+    fi
+
+    minikube addons enable default-storageclass
+
+    # Add Docker hub credentials to Minikube
+    if [ "$COPY_DOCKER_LOGIN" = "true" ]
+    then
+      set +ex
+
+      docker exec "minikube" bash -c "echo '$(cat $HOME/.docker/config.json)'| sudo tee -a /var/lib/kubelet/config.json > /dev/null && sudo systemctl restart kubelet"
+
+      set -ex
+    fi
+
+    minikube addons enable registry
+    minikube addons enable registry-aliases
+
+    kubectl create clusterrolebinding add-on-cluster-admin --clusterrole=cluster-admin --serviceaccount=kube-system:default
+else
+    echo "Unsupported KUBE_CLUSTER '$KUBE_CLUSTER'"
+    exit 1
+fi
+
+label_node

.azure/templates/setup_java.yaml

@@ -0,0 +1,11 @@
+# Step to configure JAVA on the agent
+parameters:
+  - name: JDK_VERSION
+    default: '17'
+steps:
+  - task: JavaToolInstaller@0
+    inputs:
+      versionSpec: $(JDK_VERSION)
+      jdkArchitectureOption: 'x64'
+      jdkSourceOption: 'PreInstalled'
+    displayName: 'Configure Java'

.azure/templates/setup_minikube.yaml

@@ -0,0 +1,15 @@
+# Steps needed for local Minikube instance
+steps:
+- task: DockerInstaller@0
+  displayName: Docker Installer
+  inputs:
+    dockerVersion: 19.03.9
+    releaseType: stable
+- bash: ".azure/scripts/setup-kubernetes.sh"
+  displayName: "Setup Minikube cluster"
+  env:
+    KUBE_CLUSTER: 'minikube'
+    KUBE_VERSION: 'latest'
+    KUBECTL_VERSION: 'latest'
+    MINIKUBE_VERSION: 'latest'
+    NSENTER_VERSION: '2.32'

.checkstyle/checkstyle.xml

@@ -0,0 +1,144 @@
+<?xml version="1.0"?>
+<!DOCTYPE module PUBLIC
+        "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
+        "http://checkstyle.sourceforge.net/dtds/configuration_1_3.dtd">
+
+<module name="Checker">
+
+    <property name="localeLanguage" value="en"/>
+
+    <module name="FileTabCharacter"/>
+
+    <!-- header -->
+    <module name="RegexpHeader">
+        <!--
+            /*
+             * Copyright Strimzi authors.
+             * License: Apache License 2.0 (see the file LICENSE or http://apache.org/licenses/LICENSE-2.0.html).
+             */
+         -->
+        <property name="header" value="^\/\*$\n^\s\*\sCopyright\sStrimzi\sauthors\.$\n^\s\*\sLicense:\sApache\sLicense\s2\.0\s\(see\sthe\sfile\sLICENSE\sor\shttp:\/\/apache\.org\/licenses\/LICENSE-2\.0\.html\)\.$\n^\s\*\/$"/>
+        <property name="fileExtensions" value="java"/>
+    </module>
+
+    <module name="SuppressWarningsFilter" />
+    <module name="TreeWalker">
+        <!-- code cleanup -->
+        <module name="UnusedImports">
+            <property name="processJavadoc" value="true" />
+        </module>
+        <module name="RedundantImport"/>
+        <module name="IllegalImport" />
+        <module name="EqualsHashCode"/>
+        <module name="SimplifyBooleanExpression"/>
+        <module name="OneStatementPerLine"/>
+        <module name="UnnecessaryParentheses" />
+        <module name="SimplifyBooleanReturn"/>
+
+        <!-- Import order -->
+        <module name="CustomImportOrder">
+            <property name="customImportOrderRules"
+                      value="THIRD_PARTY_PACKAGE###SPECIAL_IMPORTS###STANDARD_JAVA_PACKAGE###STATIC"/>
+            <property name="specialImportsRegExp" value="^javax\."/>
+            <property name="standardPackageRegExp" value="^java\."/>
+            <property name="sortImportsInGroupAlphabetically" value="true"/>
+            <property name="separateLineBetweenGroups" value="false"/>
+        </module>
+
+        <!-- style -->
+        <module name="DefaultComesLast"/>
+        <module name="EmptyStatement"/>
+        <module name="ArrayTypeStyle"/>
+        <module name="UpperEll"/>
+        <module name="LeftCurly"/>
+        <module name="RightCurly"/>
+        <module name="EmptyStatement"/>
+        <module name="ConstantName">
+            <property name="format" value="(^[A-Z][A-Z0-9]*(_[A-Z0-9]+)*$)|(^log$)"/>
+        </module>
+        <module name="LocalVariableName"/>
+        <module name="LocalFinalVariableName"/>
+        <module name="MemberName"/>
+        <module name="ClassTypeParameterName">
+            <property name="format" value="^[A-Z][a-zA-Z0-9]*$$"/>
+        </module>
+        <module name="MethodTypeParameterName">
+            <property name="format" value="^[A-Z][a-zA-Z0-9]*$$"/>
+        </module>
+        <module name="InterfaceTypeParameterName">
+            <property name="format" value="^[A-Z][a-zA-Z0-9]*$$"/>
+        </module>
+        <module name="PackageName"/>
+        <module name="ParameterName"/>
+        <module name="StaticVariableName"/>
+        <module name="TypeName"/>
+        <module name="AvoidStarImport"/>
+
+        <!-- whitespace -->
+        <module name="GenericWhitespace"/>
+        <module name="NoWhitespaceBefore"/>
+        <module name="WhitespaceAfter" />
+        <module name="NoWhitespaceAfter"/>
+        <module name="WhitespaceAround">
+            <property name="allowEmptyConstructors" value="true"/>
+            <property name="allowEmptyMethods" value="true"/>
+        </module>
+        <module name="Indentation"/>
+        <module name="MethodParamPad"/>
+        <module name="ParenPad"/>
+        <module name="TypecastParenPad"/>
+
+        <!-- locale-sensitive methods should specify locale -->
+        <module name="Regexp">
+            <property name="format" value="\.to(Lower|Upper)Case\(\)"/>
+            <property name="illegalPattern" value="true"/>
+            <property name="ignoreComments" value="true"/>
+        </module>
+
+        <!-- code quality -->
+        <module name="MethodLength"/>
+        <module name="ParameterNumber">
+            <!-- default is 8 -->
+            <property name="max" value="8"/>
+        </module>
+        <module name="ClassDataAbstractionCoupling">
+            <!-- default is 7 -->
+            <property name="max" value="20"/>
+        </module>
+        <module name="BooleanExpressionComplexity">
+            <!-- default is 3 -->
+            <property name="max" value="3"/>
+        </module>
+
+        <module name="ClassFanOutComplexity">
+            <!-- default is 20 -->
+            <property name="max" value="20"/>
+        </module>
+        <module name="CyclomaticComplexity">
+            <!-- default is 10-->
+            <property name="max" value="10"/>
+        </module>
+        <module name="JavaNCSS">
+            <!-- default is 50 -->
+            <property name="methodMaximum" value="50"/>
+        </module>
+        <module name="NPathComplexity">
+            <!-- default is 200 -->
+            <property name="max" value="200"/>
+        </module>
+
+        <module name="IllegalToken">
+            <property name="tokens" value="LITERAL_ASSERT"/>
+        </module>
+
+        <!-- Make the @SuppressWarnings annotations available to Checkstyle -->
+        <module name="SuppressWarningsHolder" />
+    </module>
+
+    <module name="SuppressionFilter">
+        <property name="file" value="${checkstyle.suppressions.file}"/>
+    </module>
+
+    <!-- Filter out Checkstyle warnings that have been suppressed with the @SuppressWarnings annotation -->
+    <module name="SuppressWarningsFilter" />
+</module>