Have the Webhook react to pod creation/update only
This was already working almost out-of-the-box, just had to:
- Change the webhook config so it watches pods instead of deployments
- Grant some extra ClusterRole permissions
- Add the piece that figures what's the OwnerReference and add the label
for it
- Manually inject service account mount paths
- Readd volumes tests
Fixes#2342 and #1751
Signed-off-by: Alejandro Pedraza <alejandro@buoyant.io>
The new proxy has changed its configuration as follows:
- `LISTENER` urls are now `LISTEN_ADDR` addresses;
- `CONTROL_URL` is now `DESTINATION_SVC_ADDR`;
- `*_NAMESPACE` vars are no longer needed;
- The `PROXY_ID` is now the `DESTINATION_CONTEXT`;
- The "metrics" port is now the "admin" port, since it serves more than
just metrics;
- A readiness probe now checks a dedicated /ready endpoint eagerly.
Identity injection is **NOT** configured by this branch.
The proxy's TLS implementation has changed to use a new _Identity_ controller.
In preparation for this, the `--tls=optional` CLI flag has been removed
from install and inject; and the `ca` controller has been deleted. Metrics
and UI treatments for TLS have **not** been removed, as they will continue to
be valuable for the new Identity system.
With the removal of the old identity scheme, the Destination service's proxy
ID field is now set with an opaque string (e.g. `ns:emojivoto`) to enable
locality awareness.
- Created the pkg/inject package to hold the new injection shared lib.
- Extracted from `/cli/cmd/inject.go` and `/cli/cmd/inject_util.go`
the core methods doing the workload parsing and injection, and moved them into
`/pkg/inject/inject.go`. The CLI files should now deal only with
strictly CLI concerns, and applying the json patch returned by the new
lib.
- Proceeded analogously with `/cli/cmd/uninject.go` and
`/pkg/inject/uninject.go`.
- The `InjectReport` struct and helping methods were moved into
`/pkg/inject/report.go`
- Refactored webhook to use the new injection lib
- Removed linkerd-proxy-injector-sidecar-config ConfigMap
- Added the ability to add pod labels and annotations without having to
specify the already existing ones
Fixes#1748, #2289
Signed-off-by: Alejandro Pedraza <alejandro.pedraza@gmail.com>
Alejandro Pedraza
Oliver Gould