Add proxy properties for the Kubernetes client configuration (#273)

Fixes: #105

spring-cloud-kubernetes-core/src/main/java/org/springframework/cloud/kubernetes/KubernetesAutoConfiguration.java

@@ -23,7 +23,6 @@
 import io.fabric8.kubernetes.client.KubernetesClient;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-
 import org.springframework.boot.actuate.health.HealthIndicator;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
@@ -87,6 +86,16 @@ public Config kubernetesClientConfig(
 						base.getRollingTimeout()))
 				.withTrustCerts(or(kubernetesClientProperties.isTrustCerts(),
 						base.isTrustCerts()))
+				.withHttpProxy(or(kubernetesClientProperties.getHttpProxy(),
+					base.getHttpProxy()))
+				.withHttpsProxy(or(kubernetesClientProperties.getHttpsProxy(),
+					base.getHttpsProxy()))
+				.withProxyUsername(or(kubernetesClientProperties.getProxyUsername(),
+					base.getProxyUsername()))
+				.withPassword(or(kubernetesClientProperties.getProxyPassword(),
+					base.getProxyPassword()))
+				.withNoProxy(or(kubernetesClientProperties.getNoProxy(),
+					base.getNoProxy()))
 				.build();
 
 		if (properties.getNamespace() == null || properties.getNamespace().isEmpty()) {

spring-cloud-kubernetes-core/src/main/java/org/springframework/cloud/kubernetes/KubernetesClientProperties.java

@@ -17,6 +17,7 @@
 
 package org.springframework.cloud.kubernetes;
 
+import java.util.List;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 
 @ConfigurationProperties("spring.cloud.kubernetes.client")
@@ -42,6 +43,11 @@ public class KubernetesClientProperties {
 	private Integer requestTimeout;
 	private Long rollingTimeout;
 	private Integer loggingInterval;
+	private String httpProxy;
+	private String httpsProxy;
+	private String proxyUsername;
+	private String proxyPassword;
+	private String[] noProxy;
 
 	public String getClientCertData() {
 		return clientCertData;
@@ -202,4 +208,48 @@ public Integer getLoggingInterval() {
 	public void setLoggingInterval(Integer loggingInterval) {
 		this.loggingInterval = loggingInterval;
 	}
+
+	public Boolean getTrustCerts() {
+		return trustCerts;
+	}
+
+	public String getHttpProxy() {
+		return httpProxy;
+	}
+
+	public void setHttpProxy(String httpProxy) {
+		this.httpProxy = httpProxy;
+	}
+
+	public String getHttpsProxy() {
+		return httpsProxy;
+	}
+
+	public void setHttpsProxy(String httpsProxy) {
+		this.httpsProxy = httpsProxy;
+	}
+
+	public String getProxyUsername() {
+		return proxyUsername;
+	}
+
+	public void setProxyUsername(String proxyUsername) {
+		this.proxyUsername = proxyUsername;
+	}
+
+	public String getProxyPassword() {
+		return proxyPassword;
+	}
+
+	public void setProxyPassword(String proxyPassword) {
+		this.proxyPassword = proxyPassword;
+	}
+
+	public String[] getNoProxy() {
+		return noProxy;
+	}
+
+	public void setNoProxy(String[] noProxy) {
+		this.noProxy = noProxy;
+	}
 }