Go to file
Derek Menteer 73b65228f5
Fix issue with peer stream node cleanup. (#17235)
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.
2023-05-08 13:13:25 -05:00
.changelog Fix issue with peer stream node cleanup. (#17235) 2023-05-08 13:13:25 -05:00
.github security: update go version to 1.20.4 (#17240) 2023-05-08 11:57:11 -06:00
.release Remove version bump from CRT workflow (#16728) 2023-03-23 11:21:27 -05:00
acl server: wire up in-process Resource Service (#16978) 2023-04-18 10:03:23 +01:00
agent Fix issue with peer stream node cleanup. (#17235) 2023-05-08 13:13:25 -05:00
api APIGW: Update how status conditions for certificates are handled (#17115) 2023-04-27 15:54:44 +00:00
bench Gets benchmarks running again and does a rough pass for 0.7.1. 2016-11-29 13:02:26 -08:00
build-support security: update go version to 1.20.4 (#17240) 2023-05-08 11:57:11 -06:00
command Revert "[CC-4519] Include Consul NodeID in Envoy bootstrap metadata" (#17191) 2023-04-28 15:23:55 -06:00
connect Copyright headers for missing files/folders (#16708) 2023-03-28 18:48:58 -04:00
contributing Move contributing to docs 2021-08-30 16:17:09 -04:00
docs ci: remove test-integrations CircleCI workflow (#16928) 2023-04-19 16:19:29 +00:00
envoyextensions APIGW Normalize Status Conditions (#16994) 2023-04-24 16:22:55 -04:00
grafana add readme outlining how to edit and publish 2021-01-12 14:47:11 -08:00
internal resource: List resources by owner (#17190) 2023-05-08 12:26:19 -05:00
ipaddr Copyright headers for missing files/folders (#16708) 2023-03-28 18:48:58 -04:00
lib Controller Supervision (#17016) 2023-04-25 12:52:35 +01:00
logging Controller Supervision (#17016) 2023-04-25 12:52:35 +01:00
proto Support Envoy's MaxEjectionPercent and BaseEjectionTime config entries for passive health checks (#15979) 2023-04-26 15:59:48 -07:00
proto-public resource: List resources by owner (#17190) 2023-05-08 12:26:19 -05:00
sdk Test: add noCleanup to TestServer stop (#16919) 2023-04-07 20:47:54 -04:00
sentinel Copyright headers for missing files/folders (#16708) 2023-03-28 18:48:58 -04:00
service_os Copyright headers for missing files/folders (#16708) 2023-03-28 18:48:58 -04:00
snapshot Copyright headers for missing files/folders (#16708) 2023-03-28 18:48:58 -04:00
test Upgrade test target image (#17226) 2023-05-08 12:02:31 -04:00
testrpc Copyright headers for missing files/folders (#16708) 2023-03-28 18:48:58 -04:00
tlsutil Copyright headers for missing files/folders (#16708) 2023-03-28 18:48:58 -04:00
tools/internal-grpc-proxy Copyright headers for missing files/folders (#16708) 2023-03-28 18:48:58 -04:00
troubleshoot APIGW Normalize Status Conditions (#16994) 2023-04-24 16:22:55 -04:00
types Copyright headers for missing files/folders (#16708) 2023-03-28 18:48:58 -04:00
ui ci: remove test-integrations CircleCI workflow (#16928) 2023-04-19 16:19:29 +00:00
version Copyright headers for missing files/folders (#16708) 2023-03-28 18:48:58 -04:00
website docs: correct misspelling (#17229) 2023-05-08 13:30:48 -04:00
.copywrite.hcl Remove UI brand-loader copyright headers as they do not render appropriately (#16835) 2023-03-31 11:29:19 -04:00
.dockerignore Update the scripting 2018-06-14 21:42:47 -04:00
.gitattributes Initial commit 2013-11-04 14:15:27 -08:00
.gitignore grpc: `protoc` plugin for generating gRPC rate limit specifications (#15564) 2023-01-04 16:07:02 +00:00
.golangci.yml Sync .golangci.yml from ENT (#17180) 2023-04-28 17:14:37 +00:00
CHANGELOG.md Fix broken link in changelog (#17093) 2023-04-25 01:32:22 +00:00
Dockerfile Copyright headers for missing files/folders (#16708) 2023-03-28 18:48:58 -04:00
GNUmakefile Support Envoy's MaxEjectionPercent and BaseEjectionTime config entries for passive health checks (#15979) 2023-04-26 15:59:48 -07:00
LICENSE [COMPLIANCE] Update MPL-2.0 LICENSE (#14964) 2022-11-09 12:24:14 -06:00
NOTICE.md add copyright notice file 2018-07-09 10:58:26 -07:00
README.md Fixed broken links referring to tutorials running as local agent (#14954) 2022-10-11 13:01:29 -07:00
buf.work.yaml Copyright headers for missing files/folders (#16708) 2023-03-28 18:48:58 -04:00
fixup_acl_move.sh Copyright headers for missing files/folders (#16708) 2023-03-28 18:48:58 -04:00
go.mod Update HCP bootstrapping to support existing clusters (#16916) 2023-04-27 22:27:39 +02:00
go.sum Update HCP bootstrapping to support existing clusters (#16916) 2023-04-27 22:27:39 +02:00
main.go Copyright headers for missing files/folders (#16708) 2023-03-28 18:48:58 -04:00

README.md

Consul logo Consul

Docker Pulls Go Report Card

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 - 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:

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.