microservices

Accessing Kubernetes Web UI (Dashboard)

好久不见. 提交于 2019-12-02 05:29:36
I have installed a Kubernetes with Kubeadm tool, and then followed the documentation to install the Web UI (Dashboard). Kubernetes is installed and running in one node instance which is a taint master node. However, I'm not able to access the Web UI at https://<kubernetes-master>/ui . Instead I can access it on https://<kubernetes-master>:6443/ui . How could I fix this? The URL you are using to access the dashboard is an endpoint on the API Server. By default, kubeadm deploys the API server on port 6443 , and not on 443 , which is what you would need to access the dashboard through https

*** process.env.ENV is not defined, assuming 'prod' env

為{幸葍}努か 提交于 2019-12-02 05:20:12
问题 I am unable to open My JHipster + Angular 2 (Gateway) Application home page with port 8080 (which is given at server port in application-dev.yml ) and Getting following exception in console *** process.env.ENV is not defined, assuming 'prod' env The Same application is running fine on port 9000 (which is given by yarn) and giving exception like below in console. process.env.ENV is not defined, assuming 'prod' env chrome-extension://kbfnbcaeplbcioakkpcpgfkobkghlhen/src/js/bundle.js:4776 *** My

Does Using Opaque Access Tokens Make My Server Stateful?

泪湿孤枕 提交于 2019-12-02 04:55:52
I am trying to understand statelessness in restful APIs in the context of authentication. Here's the scenario: The user logs in. The server verifies the username and the password, and generates an opaque access token. It caches some information related to this token - for example, the expiration time, the userId, whether this token was explicitly invalidated before it expired, etc. The token is sent to the client, and the client sends it with every future request. List item Fielding's dissertation defines statelessness as: "...such that each request from client to server must contain all of

k8s - Why we need ReplicaSet when we have Deployments

廉价感情. 提交于 2019-12-02 04:28:51
问题 I am new to kubernetes and microservices, there are 2 objects, Deployments and ReplicaSet. I can't wrap my head around even after reading its documentations and other articles. If we have Deployments , why do we need a ReplicaSet because you can specify the replicaset in the Deployment . And when i delete the pods, new pods will be spawned based on the replicaset, just like the deployments. Like what is the actual use-case where we only need ReplicaSet but not Deployments 回答1: Deployment

Is Microservice design pattern or architecture?

感情迁移 提交于 2019-12-02 04:20:22
问题 After doing rigorous research and analysis I finally arrived to a point which is confusing me "Is Microservice a design pattern or architecture". Some say it's a pattern evolved as a solution to monolithic applications and hence design pattern And some confirms no doubt it's an architecture which speaks about their development, management, scalability, autonomous & full stack. Any thoughts or suggestions I welcome to get myself clarified. 回答1: Microservices can be best described as an

*** process.env.ENV is not defined, assuming 'prod' env

丶灬走出姿态 提交于 2019-12-02 01:15:24
I am unable to open My JHipster + Angular 2 (Gateway) Application home page with port 8080 (which is given at server port in application-dev.yml ) and Getting following exception in console *** process.env.ENV is not defined, assuming 'prod' env The Same application is running fine on port 9000 (which is given by yarn) and giving exception like below in console. process.env.ENV is not defined, assuming 'prod' env chrome-extension://kbfnbcaeplbcioakkpcpgfkobkghlhen/src/js/bundle.js:4776 *** My problem is if I use 9000 port (Given by yarn) unable to communicate with other microservices

Micro services: shared library vs code duplication

柔情痞子 提交于 2019-12-01 22:23:27
Similar questions were asked a few times, but as every use-case can be different I thought it worth to ask it again with the specific case I'm facing with. So, we are developing micro-services using .netCore. Let's call these services ServiceA , ServiceB , ServiceC . Common entities If ServiceA calls ServiceC , then ServiceC responds with a JSON content which can be serialized into ResponseC object. This means, that both ServiceA and ServiceC should know ResponseC class. At this point I see two possibilities. ResponseC class can be in a shared library and both ServiceA and ServiceC should have

How to configure spring's RestTemplate to make http2 requests?

孤者浪人 提交于 2019-12-01 19:38:24
I have a RestClient calling GET Requests to a spring service(server), that server is accepting HTTP2 requests and i'm getting 302 as response. How to send Http2 requests using spring RestTemplate. Exception in thread "main" org.springframework.web.client.ResourceAccessException: I/O error on GET request for "https://example.com/static/mobile/get-token": unexpected end of stream on Connection{domain.com:443, proxy=DIRECT hostAddress=example.com cipherSuite=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 protocol=http/1.1}; nested exception is java.io.IOException: unexpected end of stream on Connection

How to configure spring's RestTemplate to make http2 requests?

孤街醉人 提交于 2019-12-01 19:19:53
问题 I have a RestClient calling GET Requests to a spring service(server), that server is accepting HTTP2 requests and i'm getting 302 as response. How to send Http2 requests using spring RestTemplate. Exception in thread "main" org.springframework.web.client.ResourceAccessException: I/O error on GET request for "https://example.com/static/mobile/get-token": unexpected end of stream on Connection{domain.com:443, proxy=DIRECT hostAddress=example.com cipherSuite=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256

How to edit the source code in module after installed it using zef?

戏子无情 提交于 2019-12-01 18:36:30
问题 For example, I've installed the Cro module, when I run my simple code: my %headers = {Authorization => OAuth realm="", oauth_consumer_key="xxxxxxxxxxxxxxxx", oauth_nonce="29515362", oauth_signature="KojMlteEAHlYjMcLc6LFiOwRnJ8%3D", oauth_signature_method="HMAC-SHA1", oauth_timestamp="1525913154", oauth_token="xxxx-xxxxxxxxxxxxxxxxxx", oauth_version="1.0", User-Agent => Cro}; my $resp = await Cro::HTTP::Client.get: 'http://api.fanfou.com/statuses/home_timeline.json', headers => [ user-agent =>