0094dbf312
This PR fixes a bug that was introduced in: https://github.com/hashicorp/consul/pull/16021 A user setting a protocol in proxy-defaults would cause tproxy implicit upstreams to not honor the upstream service's protocol set in its `ServiceDefaults.Protocol` field, and would instead always use the proxy-defaults value. Due to the fact that upstreams configured with "tcp" can successfully contact upstream "http" services, this issue was not recognized until recently (a proxy-defaults with "tcp" and a listening service with "http" would make successful requests, but not the opposite). As a temporary work-around, users experiencing this issue can explicitly set the protocol on the `ServiceDefaults.UpstreamConfig.Overrides`, which should take precedence. The fix in this PR removes the proxy-defaults protocol from the wildcard upstream that tproxy uses to configure implicit upstreams. When the protocol was included, it would always overwrite the value during discovery chain compilation, which was not correct. The discovery chain compiler also consumes proxy defaults to determine the protocol, so simply excluding it from the wildcard upstream config map resolves the issue. |
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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:
-
Multi-Datacenter - Consul is built to be datacenter aware, and can support any number of regions without complex configuration.
-
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.
-
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, 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.