Grpc Health Check: tls_skip_verify value is ignored

[MaheshBGajera]

Overview of the Issue

I am registering a grpc service on consul with grpc health check. My service runs on self signed tls certificate and hence I want health check to skip cert verification and as documented, I used tls_skip_verify=true in this registration request but it has no effect, health check keeps on failing with error 'certificate signed by unknown authority'.

I am using latest version of consul.

here is the sample json payload which I use to register service to consul.
{ 'id': 'test', 'name': 'test', 'address': 'host ip here', 'port': 6666, 'check': { 'name': 'xyz-check', 'grpc': '127.0.0.1:6666', 'grpc_use_tls': true, 'tls_skip_verify': true, 'interval': '10s' }, 'enable_tag_override': false, 'meta': { 'maxCapacity': 10, 'availableCapacity': 10, 'usesTls': true' }, 'tags': [ 'test' ] }

Reproduction Steps

Use latest version of consul and register check for a grpc secure service where in service is running on self signed certificate. use skip_cert_verify=true to skip cert verification but it will be ignored.

Consul info for both Client and Server

Client info

agent:
        check_monitors = 0
        check_ttls = 0
        checks = 1
        services = 1
build:
        prerelease = 
        revision = 68f81912
        version = 1.16.2
        version_metadata = 
consul:
        acl = disabled
        known_servers = 1
        server = false
runtime:
        arch = amd64
        cpu_count = 16
        goroutines = 49
        max_procs = 16
        os = linux
        version = go1.20.8
serf_lan:
        coordinate_resets = 0
        encrypted = false
        event_queue = 0
        event_time = 8
        failed = 0
        health_score = 0
        intent_queue = 0
        left = 0
        member_time = 5069
        members = 5
        query_queue = 0
        query_time = 4

{
    "client_addr": "0.0.0.0",
    "data_dir": "/opt/consul",
    "datacenter":"test",
    "enable_script_checks": false,
    "log_level": "INFO",
    "retry_join": [ "test-server01.test.some.com" ],
    "server": false
}

Operating system and Environment details

Linux #50~20.04.1-Ubuntu SMP x86_64 x86_64 x86_64 GNU/Linux

[MaheshBGajera]

Please Ignore.

Issue is with Nodejs lib we use.