docs: add keyvault artificats setup for testing (#772)

Signed-off-by: Anish Ramasekar <anish.ramasekar@gmail.com>

docs/keyvault-test-setup.md

@@ -0,0 +1,65 @@
+# Commands for creating secrets, keys and certificates for testing
+
+```bash
+export KEYVAULT_NAME=<keyvault-name>
+export LOCATION=<location>
+export RESOURCE_GROUP=<resource-group>
+```
+
+## Create Key Vault
+
+```bash
+az keyvault create --resource-group "${RESOURCE_GROUP}" \
+   --location "${LOCATION}" \
+   --name "${KEYVAULT_NAME}" \
+   --sku premium
+```
+
+## Create the secrets
+
+```bash
+az keyvault secret set --vault-name $KEYVAULT_NAME --name secret1 --value test
+```
+
+## Create the keys
+
+### RSA Key
+
+```bash
+az keyvault key create --vault-name $KEYVAULT_NAME --name key1 --kty RSA --size 2048
+```
+
+### RSA-HSM Key
+
+```bash
+az keyvault key create --vault-name $KEYVAULT_NAME --name rsahsmkey1 --kty RSA-HSM --size 2048
+```
+
+### EC-HSM Key
+
+```bash
+az keyvault key create --vault-name $KEYVAULT_NAME --name echsmkey1 --kty EC-HSM --curve P-256
+```
+
+## Create the certificates
+
+The certificates are generated using [step-cli](https://smallstep.com/cli/) so the SAN can be specified.
+
+### PEM and PKCS12 certificates
+
+```bash
+step certificate create test.domain.com test.crt test.key --profile self-signed --subtle --san test.domain.com --kty RSA --not-after 86400h --no-password --insecure
+# export to pfx so we can import it into Azure Key Vault
+openssl pkcs12 -export -in test.crt -inkey test.key -out test.pfx -passout pass:
+az keyvault certificate import --vault-name $KEYVAULT_NAME --name pemcert1 --file test.pfx
+az keyvault certificate import --vault-name $KEYVAULT_NAME --name pkcs12cert1 --file test.pfx
+```
+
+### ECC certificates
+
+```bash
+step certificate create test.domain.com testec.crt testec.key --profile self-signed --subtle --san test.domain.com --kty EC --not-after 86400h --no-password --insecure
+# export to pfx so we can import it into Azure Key Vault
+openssl pkcs12 -export -in testec.crt -inkey testec.key -out testec.pfx -passout pass:
+az keyvault certificate import --vault-name $KEYVAULT_NAME --name ecccert1 --file testec.pfx
+```