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feat: Beta support for running consul-k8s without client agents #1552

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merged 15 commits into from Sep 28, 2022

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ishustava
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@ishustava ishustava commented Sep 28, 2022

Changes proposed in this PR:

  • This is a feature branch merge (all changes to this branch have been individually reviewed)
  • Still need to add Changelog (I'll create a separate PR)

How I've tested this PR:
acceptance tests

How I expect reviewers to test this PR:
I expect you to just hit approve 🤣

Checklist:

  • Tests added
  • CHANGELOG entry added

    HashiCorp engineers only, community PRs should not add a changelog entry.
    Entries should use present tense (e.g. Add support for...)

ishustava and others added 15 commits September 27, 2022 11:52
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
* 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 <ishustava@users.noreply.github.com>
Co-authored-by: Ashwin Venkatesh <ashwin.what@gmail.com>
Co-authored-by: Ashwin Venkatesh <ashwin@hashicorp.com>
… 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 <ashwin.what@gmail.com>
* 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.
@curtbushko curtbushko self-requested a review September 28, 2022 20:23
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As you wish!

@ishustava ishustava merged commit 583008a into main Sep 28, 2022
@ishustava ishustava deleted the agentless-base branch September 28, 2022 21:30
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5 participants