8c45f2c1fe
Previously the ServiceManager had to run a separate goroutine so that it could block on a channel send/receive instead of a lock. Using this mutex with TryLock allows us to cancel the lock when the serviceConfigWatch is stopped. Without this change removing the ServiceManager.Start goroutine would not be possible because when AddService is called it acquires the stateLock. While that lock is held, if there are existing watches for the service, the old watch will be stopped, and the goroutine holding the lock will attempt to wait for that watcher goroutine to exit. If the goroutine is handling an update (serviceConfigWatch.handleUpdate) then it can block on acquiring the stateLock and deadlock the agent. With this change the context is cancelled as and the goroutine will exit instead of waiting on the stateLock. |
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| .github | ||
| acl | ||
| agent | ||
| api | ||
| bench | ||
| build-support | ||
| command | ||
| connect | ||
| contributing | ||
| demo | ||
| grafana | ||
| internal | ||
| ipaddr | ||
| lib | ||
| logging | ||
| proto | ||
| sdk | ||
| sentinel | ||
| service_os | ||
| snapshot | ||
| terraform | ||
| test | ||
| testrpc | ||
| tlsutil | ||
| types | ||
| ui | ||
| vendor | ||
| version | ||
| website | ||
| .dockerignore | ||
| .gitignore | ||
| .golangci.yml | ||
| .hashibot.hcl | ||
| CHANGELOG.md | ||
| GNUmakefile | ||
| INTERNALS.md | ||
| LICENSE | ||
| NOTICE.md | ||
| README.md | ||
| Vagrantfile | ||
| codecov.yml | ||
| go.mod | ||
| go.sum | ||
| main.go | ||
| main_test.go | ||
| package-lock.json | ||
README.md
Consul 
- Website: https://www.consul.io
- Tutorials: HashiCorp Learn
- Forum: Discuss
Consul is a distributed, highly available, and data center aware solution to connect and configure applications across dynamic, distributed infrastructure.
Consul provides several key features:
-
Multi-Datacenter - Consul is built to be datacenter aware, and can support any number of regions without complex configuration.
-
Service Mesh/Service Segmentation - Consul Connect enables secure service-to-service communication with automatic TLS encryption and identity-based authorization. Applications can use sidecar proxies in a service mesh configuration to establish TLS connections for inbound and outbound connections without being aware of Connect at all.
-
Service Discovery - Consul makes it simple for services to register themselves and to discover other services via a DNS or HTTP interface. External services such as SaaS providers can be registered as well.
-
Health Checking - Health Checking enables Consul to quickly alert operators about any issues in a cluster. The integration with service discovery prevents routing traffic to unhealthy hosts and enables service level circuit breakers.
-
Key/Value Storage - A flexible key/value store enables storing dynamic configuration, feature flagging, coordination, leader election and more. The simple HTTP API makes it easy to use anywhere.
Consul runs on Linux, Mac OS X, FreeBSD, Solaris, and Windows. A commercial version called Consul Enterprise is also available.
Please note: We take Consul's security and our users' trust very seriously. If you believe you have found a security issue in Consul, please responsibly disclose by contacting us at security@hashicorp.com.
Quick Start
A few quick start guides are available on the Consul website:
- Standalone binary install: https://learn.hashicorp.com/tutorials/consul/get-started-install
- Minikube install: https://learn.hashicorp.com/tutorials/consul/kubernetes-minikube
- Kind install: https://learn.hashicorp.com/tutorials/consul/kubernetes-kind
- Kubernetes install: https://learn.hashicorp.com/tutorials/consul/kubernetes-deployment-guide
Documentation
Full, comprehensive documentation is available on the Consul website:
Contributing
Thank you for your interest in contributing! Please refer to CONTRIBUTING.md for guidance.