linkerd2/pkg/tls
Alejandro Pedraza 19a8c72685
Add RSA support to TLS libraries (#3135)
* Add RSA support to TLS libraries

Fixes #3131

Wrapped private keys into either `PrivateKeyEC` or `PrivateKeyRSA` to
provide different certificate matching logic and marshaling depending on
the block type.

You can test having an RSA cert for the proxy injector by applying this
patch:

```diff
$ diff -u chart/templates/proxy_injector-rbac.yaml ~/tmp/proxy_injector-rbac.yaml
--- chart/templates/proxy_injector-rbac.yaml    2019-07-24 14:34:43.570616936 -0500
+++ /home/alpeb/tmp/proxy_injector-rbac.yaml    2019-07-24 13:41:03.150285099 -0500
@@ -1,4 +1,5 @@
 {{with .Values -}}
+{{- $ca := genCA "linkerd-proxy-injector.linkerd.svc" 365 -}}
 ---
 ###
 ### Proxy Injector RBAC
@@ -60,8 +61,8 @@
     {{ .CreatedByAnnotation }}: {{ .CliVersion }}
 type: Opaque
 data:
-  crt.pem: {{ b64enc .ProxyInjector.CrtPEM }}
-  key.pem: {{ b64enc .ProxyInjector.KeyPEM }}
+  crt.pem: {{ b64enc $ca.Cert }}
+  key.pem: {{ b64enc $ca.Key }}
 ---
 apiVersion: admissionregistration.k8s.io/v1beta1
 kind: MutatingWebhookConfiguration
@@ -81,7 +82,7 @@
       name: linkerd-proxy-injector
       namespace: {{ .Namespace }}
       path: "/"
-    caBundle: {{ b64enc .ProxyInjector.CrtPEM }}
+    caBundle: {{ b64enc $ca.Cert }}
   failurePolicy: {{ .WebhookFailurePolicy }}
   rules:
   - operations: [ "CREATE" ]
```

This will replace the logic to generate the cert with a call to Helm's
`genCA`, which uses RSA.

Signed-off-by: Alejandro Pedraza <alejandro@buoyant.io>
2019-07-26 11:54:56 -05:00
..
ca.go Introduce the Identity controller implementation (#2521) 2019-03-19 13:58:45 -07:00
codec.go Add RSA support to TLS libraries (#3135) 2019-07-26 11:54:56 -05:00
cred.go Add RSA support to TLS libraries (#3135) 2019-07-26 11:54:56 -05:00
cred_test.go Enable gosimple linter, fix issues (#2356) 2019-02-22 17:19:07 -08:00