Allow a single SSH key to be used in all providers

Support KUBE_SSH_KEY_PATH as a single environment variable that if specified ignores the provider specific settinsg and loads the SSH private key from the provided path. Makes it much easier to specify a consistent signer across providers.

Allow a single SSH key to be used in all providers
d09a655c · Clayton Coleman · c6ae7ae3 · d09a655c
Unverified Commit d09a655c authored Dec 21, 2018 by Clayton Coleman
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ssh.go test/e2e/framework/ssh.go +5 -0

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--- a/test/e2e/framework/ssh.go
+++ b/test/e2e/framework/ssh.go
@@ -31,6 +31,11 @@ import (
 // GetSigner returns an ssh.Signer for the provider ("gce", etc.) that can be
 // used to SSH to their nodes.
 func GetSigner(provider string) (ssh.Signer, error) {
+	// honor a consistent SSH key across all providers
+	if path := os.Getenv("KUBE_SSH_KEY_PATH"); len(path) > 0 {
+		return sshutil.MakePrivateKeySignerFromFile(path)
+	}
+
 	// Select the key itself to use. When implementing more providers here,
 	// please also add them to any SSH tests that are disabled because of signer
 	// support.