Add initial support for the basic service mesh running with agentless.

* Update connect-inject deployment to talk to consul servers (currently only in-cluster servers are supported; external servers support will come in a later PR)
* Update endpoints controller to register and deregister services and health checks in the catalog and stop using agent APIs
* Update connect-init command to take the -node-name flag so that it can search for services within a given node using catalog APIs
* Add k8s probes to the envoy container
* Provide -node-name flag to the consul connect envoy command so that we can generate correct configuration
* Selectively disable acceptance tests that don't yet work in this configuration
* Disable consul clients by default

…ontainer (#1453)

* Register mesh-gateways using the endpoints controller.
- Use consul-dataplane to configure the mesh-gateway proxy and remove envoy container.
- Remove instances of client and auto-encrypt from the deployment.
* Replace ioutil.ReadFile with os.ReadFile

…ager (#1502)

* Introduce new set of Consul flags that will be used by all consul-k8s commands
* Use consul-server-connection-manager to discover servers and use up-to-date
  server IP every time we need to make an API request.

- Added a `terminating-gateway-service.yaml` template. In order to register the deployment with the Endpoints Controller, a "dummy" service must exist so that a Kubernetes endpoint object is created, triggering the Endpoints Controller reconcile loop.
- Modified the `terminating-gateway-deployment.yaml` template:
  - Added a "managed by" label.
  - Added annotations to configure the behavior of the Endpoints Controller during registration.
  - Removed the `copy-consul-bin` init container.
  - Changed the `terminating-gateway-init` init container to use `connect-init` instead of `acl-init` as the client `acl-init` talked to will no longer exist in agentless.
  - Removed the `preStop` hook from the `terminating-gateway` container.
  - Removed the `consul-sidecar` container in preparation for the blessings of the Consul Dataplane. 
- Removed BATS tests which covered features no longer present in agentless.
- Added BATS tests for `terminating-gateway-service` and for Consul namespace handling in `terminating-gateway-deployment`.
- Added annotation `consul.hashicorp.com/terminating-gateway-namespace` to configure which Consul namespace a terminating gateway will be placed in when using Consul Enterprise.
- Modified the Endpoints Controller to register terminating gateways
  - Added a `switch` to the `createGatewayRegistrations` method which handles configuration of the endpoint particular to the terminating gateway.
  - Added unit tests which verify the registrations created by `createGatewayRegistrations` is correct.
  - Added a unit test to verify the the `Reconcile` method does register the endpoint.

Co-authored-by: Iryna Shustava <[email protected]>
Co-authored-by: Ashwin Venkatesh <[email protected]>
Co-authored-by: Ashwin Venkatesh <[email protected]>

… command (#1520)

* Introduce new set of Consul flags that will be used by all consul-k8s commands
* Use consul-server-connection-manager to discover servers and use up-to-date
  server IP every time we need to make an API request.

Co-authored-by: Ashwin Venkatesh <[email protected]>

* integrate partition-init job with consul-server-connection-manager
* integrate controller with consul-server-connection-manager
* modify partition token to be be able read all services so that it works with connection manager

- Use consul-dataplane instead of envoy.