我想为Kubernetes部署java petstore。为了实现这一点，我有 2个简单的部署。第一个是 java网络应用，第二个是 MySQL数据库。
禁用istio时，应用程序与数据库之间的连接运行良好。
不幸的是，在注入istio sidecar时，两个之间的通信停止了。
这是Web应用程序的部署文件：
ETS$emissions然后是mySql数据库的部署文件：
year sector UNemissions ETSemissions
2015 Energy 2 10
2013 Energy 1 5
2015 Chemicals 4 20
2015 Metal 6 30
2010 Metal 3 15
最后，来自网络应用的错误日志尝试连接到数据库：
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: jpetstoreweb
spec:
replicas: 1
template:
metadata:
labels:
app: jpetstoreweb
annotations:
sidecar.istio.io/inject: "true"
spec:
containers:
- name: jpetstoreweb
image: wingardiumleviosa/petstore:v7
env:
- name: VERSION
value: "1"
- name: DB_URL
value: "jpetstoredb-service"
- name: DB_PORT
value: "3306"
- name: DB_NAME
value: "jpetstore"
- name: DB_USERNAME
value: "jpetstore"
- name: DB_PASSWORD
value: "foobar"
ports:
- containerPort: 9080
readinessProbe:
httpGet:
path: /
port: 9080
initialDelaySeconds: 10
periodSeconds: 5
---
apiVersion: v1
kind: Service
metadata:
name: jpetstoreweb-service
spec:
selector:
app: jpetstoreweb
ports:
- port: 80
targetPort: 9080
---
提取：apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: jpetstoredb
spec:
replicas: 1
template:
metadata:
labels:
app: jpetstoredb
annotations:
sidecar.istio.io/inject: "true"
spec:
containers:
- name: jpetstoredb
image: wingardiumleviosa/petstoredb:v1
ports:
- containerPort: 3306
env:
- name: MYSQL_ROOT_PASSWORD
value: "foobar"
- name: MYSQL_DATABASE
value: "jpetstore"
- name: MYSQL_USER
value: "jpetstore"
- name: MYSQL_PASSWORD
value: "foobar"
---
apiVersion: v1
kind: Service
metadata:
name: jpetstoredb-service
spec:
selector:
app: jpetstoredb
ports:
- port: 3306
targetPort: 3306
其他信息：
1）我可以使用CURL从Web应用程序容器中卷曲数据库，并且可以正确回答。
2）我用Cilium代替了Calico
3）我使用HELM安装了Istio
4）Kubernetes安装在裸机上（没有云提供商）
5）Exception thrown by application class 'org.springframework.web.servlet.FrameworkServlet.processRequest:488'
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is java.sql.SQLException: Communication link failure: java.io.EOFException, underlying cause: null ** BEGIN NESTED EXCEPTION ** java.io.EOFException STACKTRACE: java.io.EOFException at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1395) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:1539) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:1930) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1168) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1279) at com.mysql.jdbc.MysqlIO.sqlQuery(MysqlIO.java:1225) at com.mysql.jdbc.Connection.execSQL(Connection.java:2278) at com.mysql.jdbc.Connection.execSQL(Connection.java:2237) at com.mysql.jdbc.Connection.execSQL(Connection.java:2218) at com.mysql.jdbc.Connection.setAutoCommit(Connection.java:548) at org.apache.commons.dbcp.DelegatingConnection.setAutoCommit(DelegatingConnection.java:331) at org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.setAutoCommit(PoolingDataSource.java:317) at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:221) at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:350) at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:261) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:101) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) at com.sun.proxy.$Proxy28.getCategory(Unknown Source) at org.springframework.samples.jpetstore.web.spring.ViewCategoryController.handleRequest(ViewCategoryController.java:31) at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:874) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:808) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:476) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:431) at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1255) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:743) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:440) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:182) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:93) at com.ibm.ws.security.jaspi.JaspiServletFilter.doFilter(JaspiServletFilter.java:56) at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:201) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:90) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:996) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1134) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1005) at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:75) at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:927) at com.ibm.ws.webcontainer.osgi.DynamicVirtualHost$2.run(DynamicVirtualHost.java:279) at com.ibm.ws.http.dispatcher.internal.channel.HttpDispatcherLink$TaskWrapper.run(HttpDispatcherLink.java:1023) at com.ibm.ws.http.dispatcher.internal.channel.HttpDispatcherLink.wrapHandlerAndExecute(HttpDispatcherLink.java:417) at com.ibm.ws.http.dispatcher.internal.channel.HttpDispatcherLink.ready(HttpDispatcherLink.java:376) at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:532) at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.handleNewRequest(HttpInboundLink.java:466) at com.ibm.ws.http.channel.internal.inbound.HttpInboundLink.processRequest(HttpInboundLink.java:331) at com.ibm.ws.http.channel.internal.inbound.HttpICLReadCallback.complete(HttpICLReadCallback.java:70) at com.ibm.ws.tcpchannel.internal.WorkQueueManager.requestComplete(WorkQueueManager.java:501) at com.ibm.ws.tcpchannel.internal.WorkQueueManager.attemptIO(WorkQueueManager.java:571) at com.ibm.ws.tcpchannel.internal.WorkQueueManager.workerRun(WorkQueueManager.java:926) at com.ibm.ws.tcpchannel.internal.WorkQueueManager$Worker.run(WorkQueueManager.java:1015) at com.ibm.ws.threading.internal.ExecutorServiceImpl$RunnableWrapper.run(ExecutorServiceImpl.java:232) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1160) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.lang.Thread.run(Thread.java:812) ** END NESTED EXCEPTION **
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:488)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:431)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
所有istio pod都在运行
6）Could not open JDBC Connection for transaction所有cilium pod都在运行
7）使用kubectl get pods -n istio-system注入Istio。如果我使用其他方法，则Istio不会将自身注入Web窗格（但是适用于DB窗格，上帝知道原因）
8）DB pod总是很高兴并且运作良好
9）WebApp容器内的istio-proxy容器的日志：kubectl get pods -n kube-system
kubectl apply -f <(~/istio-1.0.5/bin/istioctl kube-inject -f ~/jpetstore.yaml) -n foo...
kubectl logs jpetstoreweb-84c7d8964-s642k istio-proxy -n myns10）使用Istio 1.0.5和kubernetes 1.13.0
欢迎所有创意者；-)
谢谢