* plumb context to keystore methods
Contexts are more relevant now with the GCP KMS keystore which makes
http requests, this commit makes sure they are passed everywhere they
are needed, with only a few `context.TODO`s sprinkled in.
* feat: add GCP KMS support for Teleport CA key material
This commit implements support for GCP KMS as a backend for CA
operations in Teleport.
This is able to take advantage of much of the infrastucture that we have
already created for HSM support, and simply appears as a new backend for
the private key material.
The necessary configuration parameters include only the name of the KMS
keyring to use, and the protection level (which can be HSM or SOFTWARE).
These are configured in the teleport.yaml directly, in a new section
under the existing `ca_key_params` used for HSM configuration.
The GCP credentials are expected to be provided to the Teleport auth
server via the
[Application Default Credentials](https://cloud.google.com/docs/authentication/provide-credentials-adc).
This means that it "just works" if the auth server is running on a GCP
compute instance with the correct attached role, and you can run tests
locally by authenticating with `gcloud auth login`.
This does not support Teleport Cloud, as our current HSM support does
not, because the Auth server needs the configuration and the access to
the GCP account. That would be a larger effort probably requiring a new
Teleport service.
* shrink/remove keystore interface
This commit introduces the keystore.Manager type to handle all
interaction between CA and the keystore backends.
Why:
* reduces the code that needs to be implemented per keystore backend to
only the necessary operations
* separate concerns of managing key material and handling CA data
structures
* define interfaces where they're used, not implemented
* delete net 245 lines of code
* reduce keystore.KeyStore stutter
Update metalinter, fix a few lint warnings and replace deprecated linters.
`deadcode`, `structcheck` and `varcheck` are abandoned and now replaced by [`unused`][1].
Since 1.19, `go fmt` reformats godocs according to https://go.dev/doc/comment. I've done a bulk-reformatting of the codebase to keep the linter happy. Backporting is mostly harmless (the exception being `lib/services/role_test.go`, that for some reason breaks the _old_ linter using the new format).
[1]: https://golangci-lint.run/usage/linters/
* Bump golangci-lint version
* Replace abandoned linters
* Fix bodyclose on lib/auth/github.com
* Fix bodyclose on lib/kube/proxy/streamproto/proto_test.go
* Fix bodyclose on lib/srv/alpnproxy/proxy_test.go
* Fix bodyclose on lib/web/conn_upgrade_test.go
* Silence staticcheck on lib/kube/proxy/forwarder_test.go
* Silence staticcheck on lib/utils/certs_test.go
* Address BuildNameToCertificate deprecation warnings
* Run `go fmt ./...`
* Run `go fmt ./...` on api/
* Ignore formatting in role_test.go
* Remove redundant initializers in lib/srv/uacc/
* Update e/
This commit upgrades the version of x/crypto we use, to the current latest
`go get -u golang.org/x/crypto`
We also replaced the deprecated variables and updated the tests to match the
current default KEX Algos
The x/crypto didn't support RSA-SHA2 algos, so we developed our own algorithm
signer. This is no longer the case, and after upgrading x/crypto to 20220518 we
can safely remove the custom code we have.
From OpenSSH 8.8+, it works if we explicitly add the older algorithm
Somthing like this: `./ssh -vvv -oPubkeyAcceptedAlgorithms=+ssh-rsa-cert-v01@openssh.comteleportadmin@moon.marco.mydemo`
Why
---
Current CA rotation require you to rotate the key 3 times
* `init` - to add new CA to the DB
* `update_clients` - to generate new client certificate and add it to DB
* `standby` to remove the old CA from DB.
If any of the steps is skipped the integration will stop working as either Teleport or DB are not able to authenticate the connection.
Solution
---
Signing the client certificate with the new CA will allow to reduce the number of certificate updates and potencial DB restarts/reloads that should make the procedure simpler and less error prone. From now on the certificate will only need to be updated on `init` phase and after `standby` to remove the old CA.
Co-authored-by: Jim Bishopp <jamesbishopp@gmail.com>
This new feature in Go 1.17 automatically restores the environment
variable to its previous value when a test ends, making it simpler
to set up the environment for tests and less likely that we accidentally
leave behind global state.
Also convert some of the remaining uses of check to standard Go tests.
Introduce new make targets to check and add license headers to files
("make lint-license" and "make fix-license"). License checking is now a part of
"make lint" as well.
Initial attempts used goheader, but it caused "make lint-go" to become about 9x
slower (if not more), plus it only targets go files. Google's addlicense is fast
enough and targets however many file types we want.
Existing files that were missing licenses got the header added, using the
current year as the license date.
* Introduce lint-license and fix-license make targets
* Ignore generated files
* Add license to go files
* Replace irregular licenses with standard copyright/license
* Add license to proto files
* Install addlicense in build.assets Dockerfile
Nic Klaassen