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Ioannis Canellos
2016-03-25 18:40:16 +02:00
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# Created by .ignore support plugin (hsz.mobi)
### Maven template
target/
pom.xml.tag
pom.xml.releaseBackup
pom.xml.versionsBackup
pom.xml.next
release.properties
dependency-reduced-pom.xml
buildNumber.properties
.mvn/timing.properties
### Java template
*.class
# Mobile Tools for Java (J2ME)
.mtj.tmp/
# Package Files #
*.jar
*.war
*.ear
# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
hs_err_pid*
### JetBrains template
# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion
*.iml
## Directory-based project format:
.idea/
# if you remove the above rule, at least ignore the following:
# User-specific stuff:
# .idea/workspace.xml
# .idea/tasks.xml
# .idea/dictionaries
# Sensitive or high-churn files:
# .idea/dataSources.ids
# .idea/dataSources.xml
# .idea/sqlDataSources.xml
# .idea/dynamic.xml
# .idea/uiDesigner.xml
# Gradle:
# .idea/gradle.xml
# .idea/libraries
# Mongo Explorer plugin:
# .idea/mongoSettings.xml
## File-based project format:
*.ipr
*.iws
## Plugin-specific files:
# IntelliJ
/out/
# mpeltonen/sbt-idea plugin
.idea_modules/
# JIRA plugin
atlassian-ide-plugin.xml
# Crashlytics plugin (for Android Studio and IntelliJ)
com_crashlytics_export_strings.xml
crashlytics.properties
crashlytics-build.properties

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#
# Copyright (C) 2015 Red Hat, Inc.
#
# 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.
#
machine:
java:
version: oraclejdk8
environment:
JAVA_OPTS: "-Xms256m -Xmx512m"
dependencies:
override:
- mvn install -DskipTests -U
test:
post:
- mkdir -p $CIRCLE_TEST_REPORTS/junit/
- find . -type f -regex ".*/target/.*-reports/.*xml" -exec cp {} $CIRCLE_TEST_REPORTS/junit/ \;

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Copyright (C) ${project.inceptionYear} ${owner}
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.

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<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (C) 2016 to the original 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.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.sonatype.oss</groupId>
<artifactId>oss-parent</artifactId>
<version>9</version>
</parent>
<groupId>io.fabric8</groupId>
<artifactId>spring-cloud-kubernetes-project</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<name>Fabric8 :: Spring Cloud Kubernetes :: Project</name>
<url>http://fabric8.io/</url>
<inceptionYear>2016</inceptionYear>
<organization>
<name>Red Hat</name>
<url>http://redhat.com</url>
</organization>
<licenses>
<license>
<name>Apache License, Version 2.0</name>
<url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
<distribution>repo</distribution>
</license>
</licenses>
<!-- including A developer as it's required by the maven poms going into
central -->
<developers>
<developer>
<id>geeks</id>
<name>Fabric8 Development Team</name>
<organization>fabric8</organization>
<organizationUrl>http://fabric8.io/</organizationUrl>
</developer>
</developers>
<scm>
<connection>scm:git:git@github.com:fabric8io/kubeflix.git</connection>
<developerConnection>scm:git:git@github.com:fabric8io/kubeflix.git</developerConnection>
<url>http://github.com/fabric8io/kubeflix/</url>
<tag>${project.version}</tag>
</scm>
<distributionManagement>
<repository>
<id>oss-sonatype-staging</id>
<name>Sonatype Staging Repository</name>
<url>https://oss.sonatype.org/service/local/staging/deploy/maven2</url>
</repository>
</distributionManagement>
<properties>
<!-- Dependency Versions -->
<kubernetes-client.version>1.3.74</kubernetes-client.version>
<lombok.version>1.16.8</lombok.version>
<spring-boot.version>1.3.3.RELEASE</spring-boot.version>
<spring-cloud.version>1.0.4.RELEASE</spring-cloud.version>
<spring-cloud-netflix.version>1.0.6.RELEASE</spring-cloud-netflix.version>
<!-- Maven Plugin Versions -->
<docker-maven-plugin.version>0.14.2</docker-maven-plugin.version>
<fabric8-maven-plugin.version>2.2.98</fabric8-maven-plugin.version>
<jetty-maven-plugin.version>9.3.7.v20160115</jetty-maven-plugin.version>
<maven-compiler-plugin.version>3.5</maven-compiler-plugin.version>
<maven-war-plugin.version>2.6</maven-war-plugin.version>
</properties>
<modules>
<module>spring-cloud-kubernetes-discovery</module>
<module>spring-cloud-kubernetes-core</module>
<module>spring-cloud-kubernetes-all</module>
</modules>
<dependencyManagement>
<dependencies>
<!-- Own dependencies -->
<dependency>
<groupId>io.fabric8</groupId>
<artifactId>sping-cloud-kubernetes-core</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>io.fabric8</groupId>
<artifactId>sping-cloud-kubernetes-discovery</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>io.fabric8</groupId>
<artifactId>kubernetes-client</artifactId>
<version>${kubernetes-client.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-actuator</artifactId>
<version>${spring-boot.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-autoconfigure</artifactId>
<version>${spring-boot.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-commons</artifactId>
<version>${spring-cloud.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-context</artifactId>
<version>${spring-cloud.version}</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.8</version>
<scope>provided</scope>
<optional>true</optional>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<inherited>true</inherited>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>release</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-gpg-plugin</artifactId>
<executions>
<execution>
<id>sign-artifacts</id>
<phase>verify</phase>
<goals>
<goal>sign</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-enforcer-plugin</artifactId>
<version>1.3.1</version>
<executions>
<execution>
<id>enforce-no-snapshots</id>
<goals>
<goal>enforce</goal>
</goals>
<configuration>
<rules>
<requireReleaseDeps>
<message>No Snapshots Allowed!</message>
</requireReleaseDeps>
</rules>
<fail>false</fail>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>2.10.3</version>
<configuration>
<includeDependencySources>${javadoc.include.deps}</includeDependencySources>
<dependencySourceIncludes>
<dependencySourceInclude>${javadoc.source.includes}</dependencySourceInclude>
</dependencySourceIncludes>
<excludePackageNames>${javadoc.package.excludes}</excludePackageNames>
</configuration>
<executions>
<execution>
<id>attach-javadocs</id>
<goals>
<goal>jar</goal>
</goals>
<configuration>
<additionalparam>${javadoc.opts}</additionalparam>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<version>2.4</version>
<executions>
<execution>
<id>attach-sources</id>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>io.fabric8</groupId>
<artifactId>docker-maven-plugin</artifactId>
<version>${docker-maven-plugin.version}</version>
<executions>
<execution>
<goals>
<goal>build</goal>
<goal>push</goal>
</goals>
<phase>package</phase>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>docker</id>
<build>
<plugins>
<plugin>
<groupId>io.fabric8</groupId>
<artifactId>docker-maven-plugin</artifactId>
<version>${docker-maven-plugin.version}</version>
<executions>
<execution>
<id>docker-build</id>
<goals>
<goal>build</goal>
</goals>
<phase>package</phase>
</execution>
<execution>
<id>docker-push</id>
<goals>
<goal>push</goal>
</goals>
<phase>deploy</phase>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>doclint-java8-disable</id>
<activation>
<jdk>[1.8,)</jdk>
</activation>
<properties>
<javadoc.opts>-Xdoclint:none</javadoc.opts>
</properties>
</profile>
</profiles>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (C) 2016 to the original 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.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>spring-cloud-kubernetes-project</artifactId>
<groupId>io.fabric8</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>io.fabric8</groupId>
<artifactId>spring-cloud-kubernetes-all</artifactId>
<name>Fabric8 :: Spring Cloud Kubernetes :: All</name>
<dependencies>
<dependency>
<groupId>io.fabric8</groupId>
<artifactId>sping-cloud-kubernetes-core</artifactId>
</dependency>
<dependency>
<groupId>io.fabric8</groupId>
<artifactId>sping-cloud-kubernetes-discovery</artifactId>
</dependency>
</dependencies>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (C) 2016 to the original 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.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<groupId>io.fabric8</groupId>
<artifactId>spring-cloud-kubernetes-project</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>sping-cloud-kubernetes-core</artifactId>
<name>Fabric8 :: Spring Cloud Kubernetes :: Core</name>
<dependencies>
<dependency>
<groupId>io.fabric8</groupId>
<artifactId>kubernetes-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-autoconfigure</artifactId>
</dependency>
</dependencies>
</project>

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/*
* Copyright (C) 2016 to the original 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 io.fabric8.spring.cloud.kubernetes;
import io.fabric8.kubernetes.client.Config;
import io.fabric8.kubernetes.client.ConfigBuilder;
import io.fabric8.kubernetes.client.DefaultKubernetesClient;
import io.fabric8.kubernetes.client.KubernetesClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
@ConditionalOnProperty(value = "spring.cloud.kubernetes.enabled", matchIfMissing = true)
@EnableConfigurationProperties(KubernetesClientProperties.class)
public class KubernetesAutoConfiguration {
@Autowired
private KubernetesClientProperties properties;
@Bean
@ConditionalOnMissingBean(Config.class)
public Config kubernetesClientConfig() {
Config base = new Config();
Config properites = new ConfigBuilder(base)
//Only set values that have been explicitly specified
.withMasterUrl(or(properties.getMasterUrl(), base.getMasterUrl()))
.withMasterUrl(or(properties.getApiVersion(), base.getApiVersion()))
.withMasterUrl(or(properties.getApiVersion(), base.getMasterUrl()))
.withUsername(or(properties.getUsername(), base.getUsername()))
.withPassword(or(properties.getPassword(), base.getPassword()))
.withCaCertFile(or(properties.getCaCertFile(), base.getCaCertFile()))
.withCaCertData(or(properties.getCaCertData(), base.getCaCertData()))
.withClientKeyFile(or(properties.getClientKeyFile(), base.getClientKeyFile()))
.withClientKeyData(or(properties.getClientKeyData(), base.getClientKeyData()))
.withClientCertFile(or(properties.getClientCertFile(), base.getClientCertFile()))
.withClientCertData(or(properties.getClientCertData(), base.getClientCertData()))
//No magic is done for the properties below so we leave them as is.
.withClientKeyAlgo(or(properties.getClientKeyAlgo(), base.getClientKeyAlgo()))
.withClientKeyPassphrase(or(properties.getClientKeyPassphrase(), base.getClientKeyPassphrase()))
.withConnectionTimeout(or(properties.getConnectionTimeout(), base.getConnectionTimeout()))
.withRequestTimeout(or(properties.getRequestTimeout(), base.getRequestTimeout()))
.withRollingTimeout(or(properties.getRollingTimeout(), base.getRollingTimeout()))
.withTrustCerts(or(properties.isTrustCerts(), base.isTrustCerts()))
.build();
if (!base.equals(properites)) {
System.out.println("Objects different");
}
return properites;
}
@Bean
@ConditionalOnMissingBean
public KubernetesClient kubernetesClient(Config config) {
return new DefaultKubernetesClient(config);
}
@Bean
@ConditionalOnMissingBean
public KubernetesHealthIndicator kubernetesHealthIndicator(KubernetesClient client) {
return new KubernetesHealthIndicator(client);
}
private static <D> D or(D dis, D dat) {
if (dis != null) {
return dis;
} else {
return dat;
}
}
}

124
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/*
* Copyright (C) 2016 to the original 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 io.fabric8.spring.cloud.kubernetes;
import org.springframework.boot.context.properties.ConfigurationProperties;
@ConfigurationProperties("spring.cloud.kubernetes.client")
public class KubernetesClientProperties {
private Boolean trustCerts;
private String masterUrl;
private String apiVersion;
private String namespace;
private String caCertFile;
private String caCertData;
private String clientCertFile;
private String clientCertData;
private String clientKeyFile;
private String clientKeyData;
private String clientKeyAlgo;
private String clientKeyPassphrase;
private String username;
private String password;
private Integer watchReconnectInterval;
private Integer watchReconnectLimit;
private Integer connectionTimeout;
private Integer requestTimeout;
private Long rollingTimeout;
private Integer loggingInterval;
public Boolean isTrustCerts() {
return trustCerts;
}
public String getMasterUrl() {
return masterUrl;
}
public String getApiVersion() {
return apiVersion;
}
public String getNamespace() {
return namespace;
}
public String getCaCertFile() {
return caCertFile;
}
public String getCaCertData() {
return caCertData;
}
public String getClientCertFile() {
return clientCertFile;
}
public String getClientCertData() {
return clientCertData;
}
public String getClientKeyFile() {
return clientKeyFile;
}
public String getClientKeyData() {
return clientKeyData;
}
public String getClientKeyAlgo() {
return clientKeyAlgo;
}
public String getClientKeyPassphrase() {
return clientKeyPassphrase;
}
public String getUsername() {
return username;
}
public String getPassword() {
return password;
}
public Integer getWatchReconnectInterval() {
return watchReconnectInterval;
}
public Integer getWatchReconnectLimit() {
return watchReconnectLimit;
}
public Integer getConnectionTimeout() {
return connectionTimeout;
}
public Integer getRequestTimeout() {
return requestTimeout;
}
public Long getRollingTimeout() {
return rollingTimeout;
}
public Integer getLoggingInterval() {
return loggingInterval;
}
}

77
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/*
* Copyright (C) 2016 to the original 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 io.fabric8.spring.cloud.kubernetes;
import io.fabric8.kubernetes.api.model.Pod;
import io.fabric8.kubernetes.client.Config;
import io.fabric8.kubernetes.client.KubernetesClient;
import org.springframework.boot.actuate.health.AbstractHealthIndicator;
import org.springframework.boot.actuate.health.Health;
import java.nio.file.Paths;
public class KubernetesHealthIndicator extends AbstractHealthIndicator {
private static final String HOSTNAME = "HOSTNAME";
private String hostName;
private KubernetesClient client;
public KubernetesHealthIndicator(KubernetesClient client) {
this.client = client;
this.hostName = System.getenv(HOSTNAME);
}
@Override
protected void doHealthCheck(Health.Builder builder) throws Exception {
try {
Pod current = getCurrentPod();
if (current != null) {
builder.up()
.withDetail("internal", true)
.withDetail("podName", hostName)
.withDetail("podIp", current.getStatus().getPodIP())
.withDetail("serviceAccount", current.getSpec().getServiceAccountName())
.withDetail("nodeName", current.getSpec().getNodeName())
.withDetail("hostIp", current.getStatus().getHostIP());
} else {
builder.up()
.withDetail("internal", false);
}
} catch (Exception e) {
builder.down(e);
}
}
private Pod getCurrentPod() {
if (isServiceAccountFound() && isHostNameEnvVarPresent()) {
return client.pods().withName(hostName).get();
} else {
return null;
}
}
private boolean isHostNameEnvVarPresent() {
return hostName != null && !hostName.isEmpty();
}
private boolean isServiceAccountFound() {
return Paths.get(Config.KUBERNETES_SERVICE_ACCOUNT_TOKEN_PATH).toFile().exists() &&
Paths.get(Config.KUBERNETES_SERVICE_ACCOUNT_CA_CRT_PATH).toFile().exists();
}
}

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org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
io.fabric8.spring.cloud.kubernetes.KubernetesAutoConfiguration

56
spring-cloud-kubernetes-discovery/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (C) 2016 to the original 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.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<groupId>io.fabric8</groupId>
<artifactId>spring-cloud-kubernetes-project</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>sping-cloud-kubernetes-discovery</artifactId>
<name>Fabric8 :: Spring Cloud Kubernetes :: Discovery</name>
<dependencies>
<dependency>
<groupId>io.fabric8</groupId>
<artifactId>sping-cloud-kubernetes-core</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-autoconfigure</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-commons</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-context</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
</project>

44
spring-cloud-kubernetes-discovery/src/main/java/io/fabric8/spring/cloud/discovery/KubernetesDiscoveryAutoConfiguration.java Normal file
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/*
* Copyright (C) 2016 to the original 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 io.fabric8.spring.cloud.discovery;
import io.fabric8.kubernetes.client.KubernetesClient;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
@ConditionalOnProperty(value = "spring.cloud.kubernetes.enabled", matchIfMissing = true)
public class KubernetesDiscoveryAutoConfiguration {
@Bean
public KubernetesDiscoveryProperties kubernetesDiscoveryProperties() {
return new KubernetesDiscoveryProperties();
}
@Bean
@ConditionalOnMissingBean
public KubernetesDiscoveryClient kubernetesDiscoveryClient(KubernetesClient client, KubernetesDiscoveryProperties properties) {
return new KubernetesDiscoveryClient(client, properties.getServiceName());
}
@Bean
public KubernetesDiscoveryLifecycle kubernetesDiscoveryLifecycle(KubernetesClient client, KubernetesDiscoveryProperties properties) {
return new KubernetesDiscoveryLifecycle(client, properties);
}
}

88
spring-cloud-kubernetes-discovery/src/main/java/io/fabric8/spring/cloud/discovery/KubernetesDiscoveryClient.java Normal file
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/*
* Copyright (C) 2016 to the original 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 io.fabric8.spring.cloud.discovery;
import io.fabric8.kubernetes.client.KubernetesClient;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import java.util.List;
import java.util.stream.Collectors;
public class KubernetesDiscoveryClient implements DiscoveryClient {
private static final String HOSTNAME = "HOSTNAME";
private KubernetesClient client;
private String localServiceId;
public KubernetesDiscoveryClient() {
}
public KubernetesDiscoveryClient(KubernetesClient client, String localServiceId) {
this.client = client;
this.localServiceId = localServiceId;
}
public KubernetesClient getClient() {
return client;
}
public void setClient(KubernetesClient client) {
this.client = client;
}
public String getLocalServiceId() {
return localServiceId;
}
public void setLocalServiceId(String localServiceId) {
this.localServiceId = localServiceId;
}
@Override
public String description() {
return "Kubernetes Discovery Client";
}
@Override
public ServiceInstance getLocalServiceInstance() {
String podName = System.getenv(HOSTNAME);
return client.endpoints().withName(localServiceId).get().getSubsets()
.stream()
.filter(s -> s.getAddresses().iterator().next().getIp().equals(podName))
.map(s -> new KubernetesServiceInstance(localServiceId, s.getPorts().iterator().next().getName(), s, false))
.findFirst().get();
}
@Override
public List<ServiceInstance> getInstances(String serviceId) {
return client.endpoints().withName(serviceId).get()
.getSubsets()
.stream().map(s -> new KubernetesServiceInstance(serviceId, s.getPorts().iterator().next().getName(), s, false))
.collect(Collectors.toList());
}
@Override
public List<String> getServices() {
return client.services().list()
.getItems()
.stream().map(s -> s.getMetadata().getName())
.collect(Collectors.toList());
}
}

83
spring-cloud-kubernetes-discovery/src/main/java/io/fabric8/spring/cloud/discovery/KubernetesDiscoveryLifecycle.java Normal file
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/*
* Copyright (C) 2016 to the original 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 io.fabric8.spring.cloud.discovery;
import io.fabric8.kubernetes.client.KubernetesClient;
import org.springframework.cloud.client.discovery.AbstractDiscoveryLifecycle;
import org.springframework.cloud.client.discovery.event.InstanceRegisteredEvent;
import java.util.concurrent.atomic.AtomicBoolean;
public class KubernetesDiscoveryLifecycle extends AbstractDiscoveryLifecycle {
private KubernetesClient client;
private KubernetesDiscoveryProperties properties;
private AtomicBoolean running = new AtomicBoolean(false);
public KubernetesDiscoveryLifecycle(KubernetesClient client, KubernetesDiscoveryProperties properties) {
this.client = client;
this.properties = properties;
}
@Override
public void start() {
if (!isEnabled()) {
return;
}
if (!isRunning()) {
register();
getContext().publishEvent(new InstanceRegisteredEvent<>(this,
getConfiguration()));
running.compareAndSet(false, true);
}
}
@Override
public boolean isRunning() {
return this.running.get();
}
@Override
protected int getConfiguredPort() {
return client.getMasterUrl().getPort();
}
@Override
protected void setConfiguredPort(int port) {
}
@Override
protected Object getConfiguration() {
return properties;
}
@Override
protected void register() {
}
@Override
protected void deregister() {
}
@Override
protected boolean isEnabled() {
return properties.isEnabled();
}
}

39
spring-cloud-kubernetes-discovery/src/main/java/io/fabric8/spring/cloud/discovery/KubernetesDiscoveryProperties.java Normal file
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/*
* Copyright (C) 2016 to the original 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 io.fabric8.spring.cloud.discovery;
import org.springframework.boot.context.properties.ConfigurationProperties;
@ConfigurationProperties("spring.cloud.kubernetes.discovery")
public class KubernetesDiscoveryProperties {
private boolean enabled = true;
private String serviceName;
public boolean isEnabled() {
return enabled;
}
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
public String getServiceName() {
return serviceName;
}
}

98
spring-cloud-kubernetes-discovery/src/main/java/io/fabric8/spring/cloud/discovery/KubernetesServiceInstance.java Normal file
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/*
* Copyright (C) 2016 to the original 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 io.fabric8.spring.cloud.discovery;
import io.fabric8.kubernetes.api.model.EndpointPort;
import io.fabric8.kubernetes.api.model.EndpointSubset;
import org.springframework.cloud.client.ServiceInstance;
import java.net.URI;
import java.net.URISyntaxException;
import static io.fabric8.kubernetes.client.utils.Utils.isNotNullOrEmpty;
import static io.fabric8.kubernetes.client.utils.Utils.isNullOrEmpty;
public class KubernetesServiceInstance implements ServiceInstance {
private static final String HTTP_PREFIX = "http://";
private static final String HTTPS_PREFIX = "https://";
private static final String COLN = ":";
private final String serviceId;
private final String portName;
private final EndpointSubset subset;
private final Boolean secure;
public KubernetesServiceInstance(String serviceId, String portName, EndpointSubset subset, Boolean secure) {
this.serviceId = serviceId;
this.portName = portName;
this.subset = subset;
this.secure = secure;
}
@Override
public String getServiceId() {
return serviceId;
}
@Override
public String getHost() {
if (subset.getAddresses().isEmpty()) {
throw new IllegalStateException("Endpoint subset has no addresses.");
}
return subset.getAddresses().get(0).getIp();
}
@Override
public int getPort() {
if (subset.getPorts().isEmpty()) {
throw new IllegalStateException("Endpoint subset has no ports.");
} else if (isNullOrEmpty(portName) && subset.getPorts().size() == 1) {
return subset.getPorts().get(0).getPort();
} else if (isNotNullOrEmpty(portName)) {
for (EndpointPort port : subset.getPorts()) {
if (portName.endsWith(port.getName())) {
return port.getPort();
}
}
}
throw new IllegalStateException("Endpoint subset has no matching ports.");
}
@Override
public boolean isSecure() {
return secure;
}
@Override
public URI getUri() {
StringBuilder sb = new StringBuilder();
if (isSecure()) {
sb.append(HTTPS_PREFIX);
} else {
sb.append(HTTP_PREFIX);
}
sb.append(getHost()).append(COLN).append(getPort());
try {
return new URI(sb.toString());
} catch (URISyntaxException e) {
throw new RuntimeException(e);
}
}
}

6
spring-cloud-kubernetes-discovery/src/main/resources/META-INF/spring.factories Normal file
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org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
io.fabric8.spring.cloud.discovery.KubernetesDiscoveryAutoConfiguration
# Discovery Client Configuration
org.springframework.cloud.client.discovery.EnableDiscoveryClient=\
io.fabric8.spring.cloud.discovery.KubernetesDiscoveryClient