73b65228f5
Fix issue with peer stream node cleanup. This commit encompasses a few problems that are closely related due to their proximity in the code. 1. The peerstream utilizes node IDs in several locations to determine which nodes / services / checks should be cleaned up or created. While VM deployments with agents will likely always have a node ID, agentless uses synthetic nodes and does not populate the field. This means that for consul-k8s deployments, all services were likely bundled together into the same synthetic node in some code paths (but not all), resulting in strange behavior. The Node.Node field should be used instead as a unique identifier, as it should always be populated. 2. The peerstream cleanup process for unused nodes uses an incorrect query for node deregistration. This query is NOT namespace aware and results in the node (and corresponding services) being deregistered prematurely whenever it has zero default-namespace services and 1+ non-default-namespace services registered on it. This issue is tricky to find due to the incorrect logic mentioned in #1, combined with the fact that the affected services must be co-located on the same node as the currently deregistering service for this to be encountered. 3. The stream tracker did not understand differences between services in different namespaces and could therefore report incorrect numbers. It was updated to utilize the full service name to avoid conflicts and return proper results. |
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| agent | ||
| api | ||
| bench | ||
| build-support | ||
| command | ||
| connect | ||
| contributing | ||
| docs | ||
| envoyextensions | ||
| grafana | ||
| internal | ||
| ipaddr | ||
| lib | ||
| logging | ||
| proto | ||
| proto-public | ||
| sdk | ||
| sentinel | ||
| service_os | ||
| snapshot | ||
| test | ||
| testrpc | ||
| tlsutil | ||
| tools/internal-grpc-proxy | ||
| troubleshoot | ||
| types | ||
| ui | ||
| version | ||
| website | ||
| .copywrite.hcl | ||
| .dockerignore | ||
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| .golangci.yml | ||
| CHANGELOG.md | ||
| Dockerfile | ||
| GNUmakefile | ||
| LICENSE | ||
| NOTICE.md | ||
| README.md | ||
| buf.work.yaml | ||
| fixup_acl_move.sh | ||
| go.mod | ||
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| main.go | ||
README.md
Consul
Consul is a distributed, highly available, and data center aware solution to connect and configure applications across dynamic, distributed infrastructure.
- Website: https://www.consul.io
- Tutorials: HashiCorp Learn
- Forum: Discuss
Consul provides several key features:
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Multi-Datacenter - Consul is built to be datacenter aware, and can support any number of regions without complex configuration.
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Service Mesh - Consul Service Mesh 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 with Transparent Proxy.
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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.
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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.
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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, macOS, FreeBSD, Solaris, and Windows and includes an optional browser based UI. 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/collections/consul/get-started-vms
- 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
- Deploy HCP Consul: https://learn.hashicorp.com/tutorials/consul/hcp-gs-deploy
Documentation
Full, comprehensive documentation is available on the Consul website: https://consul.io/docs
Contributing
Thank you for your interest in contributing! Please refer to CONTRIBUTING.md for guidance. For contributions specifically to the browser based UI, please refer to the UI's README.md for guidance.