This change builds on #19043 and #19067 and updates the sidecar controller to use those computed resources. This achieves several benefits:
* The cache is now simplified which helps us solve for previous bugs (such as multiple Upstreams/Destinations targeting the same service would overwrite each other)
* We no longer need proxy config cache
* We no longer need to do merging of proxy configs as part of the controller logic
* Controller watches are simplified because we no longer need to have complex mapping using cache and can instead use the simple ReplaceType mapper.
It also makes several other improvements/refactors:
* Unifies all caches into one. This is because originally the caches were more independent, however, now that they need to interact with each other it made sense to unify them where sidecar proxy controller uses one cache with 3 bimappers
* Unifies cache and mappers. Mapper already needed all caches anyway and so it made sense to make the cache do the mapping also now that the cache is unified.
* Gets rid of service endpoints watches. This was needed to get updates in a case when service's identities have changed and we need to update proxy state template's spiffe IDs for those destinations. This will however generate a lot of reconcile requests for this controller as service endpoints objects can change a lot because they contain workload's health status. This is solved by adding a status to the service object tracking "bound identities" and have service endpoints controller update it. Having service's status updated allows us to get updates in the sidecar proxy controller because it's already watching service objects
* Add a watch for workloads. We need it so that we get updates if workload's ports change. This also ensures that we update cached identities in case workload's identity changes.
This new controller produces an intermediate output (ComputedRoutes) that is meant to summarize all relevant xRoutes and related mesh configuration in an easier-to-use format for downstream use to construct the ProxyStateTemplate.
It also applies status updates to the xRoute resource types to indicate that they are themselves semantically valid inputs.
* mesh-controller: handle L4 protocols for a proxy without upstreams
* sidecar-controller: Support explicit destinations for L4 protocols and single ports.
* This controller generates and saves ProxyStateTemplate for sidecar proxies.
* It currently supports single-port L4 ports only.
* It keeps a cache of all destinations to make it easier to compute and retrieve destinations.
* It will update the status of the pbmesh.Upstreams resource if anything is invalid.
* endpoints-controller: add workload identity to the service endpoints resource
* small fixes
* review comments
* Address PR comments
* sidecar-proxy controller: Add support for transparent proxy
This currently does not support inferring destinations from intentions.
* PR review comments
* mesh-controller: handle L4 protocols for a proxy without upstreams
* sidecar-controller: Support explicit destinations for L4 protocols and single ports.
* This controller generates and saves ProxyStateTemplate for sidecar proxies.
* It currently supports single-port L4 ports only.
* It keeps a cache of all destinations to make it easier to compute and retrieve destinations.
* It will update the status of the pbmesh.Upstreams resource if anything is invalid.
* endpoints-controller: add workload identity to the service endpoints resource
* small fixes
* review comments
* Make sure endpoint refs route to mesh port instead of an app port
* Address PR comments
* fixing copyright
* tidy imports
* sidecar-proxy controller: Add support for transparent proxy
This currently does not support inferring destinations from intentions.
* tidy imports
* add copyright headers
* Prefix sidecar proxy test files with source and destination.
* Update controller_test.go
* NET-5132 - Configure multiport routing for connect proxies in TProxy mode
* formatting golden files
* reverting golden files and adding changes in manually. build implicit destinations still has some issues.
* fixing files that were incorrectly repeating the outbound listener
* PR comments
* extract AlpnProtocol naming convention to getAlpnProtocolFromPortName(portName)
* removing address level filtering.
* adding license to resources_test.go
---------
Co-authored-by: Iryna Shustava <iryna@hashicorp.com>
Co-authored-by: R.B. Boyer <rb@hashicorp.com>
Co-authored-by: github-team-consul-core <github-team-consul-core@hashicorp.com>
* This controller generates and saves ProxyStateTemplate for sidecar proxies.
* It currently supports single-port L4 ports only.
* It keeps a cache of all destinations to make it easier to compute and retrieve destinations.
* It will update the status of the pbmesh.Upstreams resource if anything is invalid.
* This commit also changes service endpoints to include workload identity. This made the implementation a bit easier as we don't need to look up as many workloads and instead rely on endpoints data.
* Adding explicit MPL license for sub-package
This directory and its subdirectories (packages) contain files licensed with the MPLv2 `LICENSE` file in this directory and are intentionally licensed separately from the BSL `LICENSE` file at the root of this repository.
* Adding explicit MPL license for sub-package
This directory and its subdirectories (packages) contain files licensed with the MPLv2 `LICENSE` file in this directory and are intentionally licensed separately from the BSL `LICENSE` file at the root of this repository.
* Updating the license from MPL to Business Source License
Going forward, this project will be licensed under the Business Source License v1.1. Please see our blog post for more details at <Blog URL>, FAQ at www.hashicorp.com/licensing-faq, and details of the license at www.hashicorp.com/bsl.
* add missing license headers
* Update copyright file headers to BUSL-1.1
* Update copyright file headers to BUSL-1.1
* Update copyright file headers to BUSL-1.1
* Update copyright file headers to BUSL-1.1
* Update copyright file headers to BUSL-1.1
* Update copyright file headers to BUSL-1.1
* Update copyright file headers to BUSL-1.1
* Update copyright file headers to BUSL-1.1
* Update copyright file headers to BUSL-1.1
* Update copyright file headers to BUSL-1.1
* Update copyright file headers to BUSL-1.1
* Update copyright file headers to BUSL-1.1
* Update copyright file headers to BUSL-1.1
* Update copyright file headers to BUSL-1.1
* Update copyright file headers to BUSL-1.1
---------
Co-authored-by: hashicorp-copywrite[bot] <110428419+hashicorp-copywrite[bot]@users.noreply.github.com>
Also, change the ProxyState.id to identity. This is because we already have the id of this proxy
from the resource, and this id should be name-aligned with the workload it represents. It should
also have the owner ref set to the workload ID if we need that. And so the id field seems unnecessary.
We do, however, need a reference to workload identity so that we can authorize the proxy when it initially
connects to the xDS server.
Configuration that previously was inlined into the Upstreams resource
applies to both explicit and implicit upstreams and so it makes sense to
split it out into its own resource.
It also has other minor changes:
- Renames `proxy.proto` proxy_configuration.proto`
- Changes the type of `Upstream.destination_ref` from `pbresource.ID` to
`pbresource.Reference`
- Adds comments to fields that didn't have them
Iryna Shustava