Unable to start dev server locally, Elastisearch not running

[autumnfound]

In attempting to run the server locally for testing and future development/patching purposes, I've run into a snag. It looks like there is a need to have an Elastisearch instance active that isn't documented:

org.springframework.dao.DataAccessResourceFailureException: Connection refused; nested exception is java.lang.RuntimeException: Connection refused
        at org.springframework.data.elasticsearch.core.ElasticsearchExceptionTranslator.translateExceptionIfPossible(ElasticsearchExceptionTranslator.java:75) ~[spring-data-elasticsearch-4.1.1.jar:4.1.1]
        at org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate.translateException(ElasticsearchRestTemplate.java:379) ~[spring-data-elasticsearch-4.1.1.jar:4.1.1]
        at org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate.execute(ElasticsearchRestTemplate.java:362) ~[spring-data-elasticsearch-4.1.1.jar:4.1.1]
        at org.springframework.data.elasticsearch.core.DefaultIndexOperations.doExists(DefaultIndexOperations.java:99) ~[spring-data-elasticsearch-4.1.1.jar:4.1.1]
        at org.springframework.data.elasticsearch.core.AbstractDefaultIndexOperations.exists(AbstractDefaultIndexOperations.java:136) ~[spring-data-elasticsearch-4.1.1.jar:4.1.1]
        at org.eclipse.openvsx.search.SearchService.updateSearchIndex(SearchService.java:132) ~[main/:na]
        at org.eclipse.openvsx.search.SearchService.initSearchIndex(SearchService.java:92) ~[main/:na]
        at org.eclipse.openvsx.search.SearchService$$FastClassBySpringCGLIB$$60f9c415.invoke(<generated>) ~[main/:na]
        at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) ~[spring-core-5.3.1.jar:5.3.1]
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771) ~[spring-aop-5.3.1.jar:5.3.1]
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.3.1.jar:5.3.1]
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) ~[spring-aop-5.3.1.jar:5.3.1]
        at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:371) ~[spring-tx-5.3.1.jar:5.3.1]
        at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:134) ~[spring-tx-5.3.1.jar:5.3.1]
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.1.jar:5.3.1]
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) ~[spring-aop-5.3.1.jar:5.3.1]
        at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691) ~[spring-aop-5.3.1.jar:5.3.1]
        at org.eclipse.openvsx.search.SearchService$$EnhancerBySpringCGLIB$$e6727f1.initSearchIndex(<generated>) ~[main/:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
        at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
        at org.springframework.context.event.ApplicationListenerMethodAdapter.doInvoke(ApplicationListenerMethodAdapter.java:312) ~[spring-context-5.3.1.jar:5.3.1]
        at org.springframework.context.event.ApplicationListenerMethodAdapter.processEvent(ApplicationListenerMethodAdapter.java:197) ~[spring-context-5.3.1.jar:5.3.1]
        at org.springframework.context.event.ApplicationListenerMethodAdapter.onApplicationEvent(ApplicationListenerMethodAdapter.java:160) ~[spring-context-5.3.1.jar:5.3.1]
        at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:203) ~[spring-context-5.3.1.jar:5.3.1]
        at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:196) ~[spring-context-5.3.1.jar:5.3.1]
        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:161) ~[spring-context-5.3.1.jar:5.3.1]
        at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:426) ~[spring-context-5.3.1.jar:5.3.1]
        at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:383) ~[spring-context-5.3.1.jar:5.3.1]
        at org.springframework.boot.context.event.EventPublishingRunListener.started(EventPublishingRunListener.java:105) ~[spring-boot-2.4.0.jar:2.4.0]
        at org.springframework.boot.SpringApplicationRunListeners.lambda$started$5(SpringApplicationRunListeners.java:75) ~[spring-boot-2.4.0.jar:2.4.0]
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1541) ~[na:na]
        at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:117) ~[spring-boot-2.4.0.jar:2.4.0]
        at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:111) ~[spring-boot-2.4.0.jar:2.4.0]
        at org.springframework.boot.SpringApplicationRunListeners.started(SpringApplicationRunListeners.java:75) ~[spring-boot-2.4.0.jar:2.4.0]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:332) ~[spring-boot-2.4.0.jar:2.4.0]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1309) ~[spring-boot-2.4.0.jar:2.4.0]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1298) ~[spring-boot-2.4.0.jar:2.4.0]
        at org.eclipse.openvsx.RegistryApplication.main(RegistryApplication.java:29) ~[main/:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
        at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
        at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.4.0.jar:2.4.0]

Looking into the Gitpod dockerfile, it looks like Elastisearch is downloaded and extracted, but never started? Unless there is some Gitpod magic to start the instance when you set the ES_HOME env var. Are there any requirements for the Elastisearch instance, like versions or user accounts that are needed?

[spoenemann]

In the Gitpod dev environment, Elasticsearch is downloaded here https://github.com/eclipse/openvsx/blob/6bafccaed054ded0d00baa619390a5ef1aef8099/.gitpod.dockerfile#L8-L9 and started here https://github.com/eclipse/openvsx/blob/6bafccaed054ded0d00baa619390a5ef1aef8099/.gitpod.yml#L38

Elasticsearch configuration is documented in the Wiki: https://github.com/eclipse/openvsx/wiki/Deploying-Open-VSX#elasticsearch