When installing multiple control planes, the mutatingwebhookconfiguration of the first control plane gets overwritten by any subsequent control plane install. This is caused by the fixed name given to the mutatingwebhookconfiguration manifest at install time.
This commit adds in the namespace to the manifest so that there is a unique configuration for each control plane.
Fixes#2887
* Add control plane and CNI PSP and RBAC resources
* Add the '--linkerd-cni-enabled' flag to the multi-stage install subcommands
This flag ensures that the NET_ADMIN capability is omitted from the control
plane's PSP during 'install config' and the proxy-init containers aren't
injected during 'install control-plane'.
Signed-off-by: Ivan Sim <ivan@buoyant.io>
* If HA, set the webhooks failure policy to 'Fail'
I'm adding to the linkerd namespace a new label
`linkerd.io/is-control-plane: true` that is used in the webhook configs'
selector to skip the proxy injector for this namespace. This avoids
running into the timing issues described in #2852.
Fixes#2852
Signed-off-by: Alejandro Pedraza <alejandro@buoyant.io>
The patch provided by @ihcsim applies correct values for the securityContext during injection, namely: `allowPrivilegeEscalation = false`, `readOnlyRootFilesystem = true`, and the capabilities are copied from the primary container. Additionally, the proxy-init container securityContext has been updated with appropriate values.
Signed-off-by: Cody Vandermyn <cody.vandermyn@nordstrom.com>
Split proxy-init into separate repo
Fixes#2563
The new repo is https://github.com/linkerd/linkerd2-proxy-init, and I
tagged the latest there `v1.0.0`.
Here, I've removed the `/proxy-init` dir and pinned the injected
proxy-init version to `v1.0.0` in the injector code and tests.
`/cni-plugin` depends on proxy-init, so I updated the import paths
there, and could verify CNI is still working (there is some flakiness
but unrelated to this PR).
For consistency, I added a `--init-image-version` flag to `linkerd
inject` along with its corresponding override config annotation.
Signed-off-by: Alejandro Pedraza <alejandro@buoyant.io>
* Update helm charts to include webhooks config and TLS secret
* Update the webhooks to read the secret cert and key
* Update webhooks to not recreate config on restart
* Ensure upgrade preserve existing secrets
* Revert the change to rename the webhook configs
The renaming change breaks upgrade, where the new webhook configs conflict with
the existing ones. The older resources aren't deleted during upgrade because
they are dynamically created.
* Make the secret volume read-only
* Remove unnecessary exported getter functions
* Remove obsolete mwc and vwc templates
Signed-off-by: Ivan Sim <ivan@buoyant.io>
All ServiceAccounts are intended to be grouped together with other RBAC
resources, particularly for `linkerd install config` output. Grafana and
Web ServiceAccounts were still included with their respective
Deployments.
Group Grafana and Web ServiceAccounts with other RBAC resources.
Signed-off-by: Andrew Seigner <siggy@buoyant.io>
`linkerd install` supports a 2-stage install process, `linkerd upgrade`
did not.
Add 2-stage support for `linkerd upgrade`. Also exercise multi-stage
functionality during upgrade integration tests.
Part of #2337
Signed-off-by: Andrew Seigner <siggy@buoyant.io>
This reverts commit 3de16d47be.
#2740 modified the ServiceProfiles CRD which will cause issues for users upgrading from the old CRD version to the new version. #2748 was an attempt to fix this by bumping the service profile CRD version, however, our testing infrastructure is not well set up to accommodate changes to CRDs because they are resources which are global to the cluster.
We revert this change for now and will revisit it in the future when we can give more thought to CRD versioning, upgrade, and testing.
Signed-off-by: Alex Leong <alex@buoyant.io>
* The 'linkerd-version' CLI flag is renamed to 'control-plane-version'
* Add version field to proxy config
* Add the control plane version to the global config
* Unit test for init image version
* Use more specific control plane and proxy versions in unit tests
Signed-off-by: Ivan Sim <ivan@buoyant.io>
This is an initial change to separate out config-specific k8s objects
from the control-plane components. The eventual goal will be rendering
these configs as the first stage of a multi-stage install.
Part of #2337
Signed-off-by: Andrew Seigner <siggy@buoyant.io>
92f15e78a9 incorrectly removed the config
version override when patching a config from options, which caused
upgrade to stop updating the config version.
Fixes#2660
Add validation webhook for service profiles
Fixes#2075
Todo in a follow-up PRs: remove the SP check from the CLI check.
Signed-off-by: Alejandro Pedraza <alejandro@buoyant.io>
This change introduces a basic unit test for the `linkerd upgrade`
command. Given a mock k8s client with linkerd-config and
linkerd-identity-issuer objects, it validates the rendered yaml output
against an expected file.
To enable this testing, most of the logic in the top-level upgrade
command has been moved down into a `validateAndBuild` method.
TODO:
- test individual functions around mutating options, flags, configs, and
values
- enable reading the install information from a manifest rather than k8s
Part of #2637
Signed-off-by: Andrew Seigner <siggy@buoyant.io>
Alejandro Pedraza
Dennis Adjei-Baah
Ivan Sim
Cody Vandermyn
Tarun Pothulapati
Andrew Seigner
Alex Leong
Andrew Seigner
Katerina
Oliver Gould
Alejandro Pedraza