Add kubernetes deployment specs

deploy/3-certificate.yaml

@@ -0,0 +1,13 @@
+---
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: coreid-tls
+  namespace: starship
+spec:
+  secretName: coreid-tls-secret
+  dnsNames:
+    - ${COREID_DOMAIN}
+  issuerRef:
+    name: letsencrypt-ca
+    kind: ClusterIssuer