e02ef16f02
* Persist HCP management token from server config We want to move away from injecting an initial management token into Consul clusters linked to HCP. The reasoning is that by using a separate class of token we can have more flexibility in terms of allowing HCP's token to co-exist with the user's management token. Down the line we can also more easily adjust the permissions attached to HCP's token to limit it's scope. With these changes, the cloud management token is like the initial management token in that iit has the same global management policy and if it is created it effectively bootstraps the ACL system. * Update SDK and mock HCP server The HCP management token will now be sent in a special field rather than as Consul's "initial management" token configuration. This commit also updates the mock HCP server to more accurately reflect the behavior of the CCM backend. * Refactor HCP bootstrapping logic and add tests We want to allow users to link Consul clusters that already exist to HCP. Existing clusters need care when bootstrapped by HCP, since we do not want to do things like change ACL/TLS settings for a running cluster. Additional changes: * Deconstruct MaybeBootstrap so that it can be tested. The HCP Go SDK requires HTTPS to fetch a token from the Auth URL, even if the backend server is mocked. By pulling the hcp.Client creation out we can modify its TLS configuration in tests while keeping the secure behavior in production code. * Add light validation for data received/loaded. * Sanitize initial_management token from received config, since HCP will only ever use the CloudConfig.MangementToken. * Add changelog entry
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.