hack/scripts-dev: sync with master branch

Signed-off-by: Gyuho Lee <gyuhox@gmail.com>

hack/scripts-dev/docker-dns/certs/run.sh

@@ -31,3 +31,52 @@ ETCDCTL_API=3 ./etcdctl \
   --key=/certs/server.key.insecure \
   --endpoints=https://m1.etcd.local:2379,https://m2.etcd.local:22379,https://m3.etcd.local:32379 \
   get abc
+
+printf "\nWriting v2 key...\n"
+curl -L https://127.0.0.1:2379/v2/keys/queue \
+  --cacert /certs/ca.crt \
+  --cert /certs/server.crt \
+  --key /certs/server.key.insecure \
+  -X POST \
+  -d value=data
+
+printf "\nWriting v2 key...\n"
+curl -L https://m1.etcd.local:2379/v2/keys/queue \
+  --cacert /certs/ca.crt \
+  --cert /certs/server.crt \
+  --key /certs/server.key.insecure \
+  -X POST \
+  -d value=data
+
+printf "\nWriting v3 key...\n"
+curl -L https://127.0.0.1:2379/v3/kv/put \
+  --cacert /certs/ca.crt \
+  --cert /certs/server.crt \
+  --key /certs/server.key.insecure \
+  -X POST \
+  -d '{"key": "Zm9v", "value": "YmFy"}'
+
+printf "\n\nWriting v3 key...\n"
+curl -L https://m1.etcd.local:2379/v3/kv/put \
+  --cacert /certs/ca.crt \
+  --cert /certs/server.crt \
+  --key /certs/server.key.insecure \
+	-X POST \
+  -d '{"key": "Zm9v", "value": "YmFy"}'
+
+printf "\n\nReading v3 key...\n"
+curl -L https://m1.etcd.local:2379/v3/kv/range \
+  --cacert /certs/ca.crt \
+  --cert /certs/server.crt \
+  --key /certs/server.key.insecure \
+	-X POST \
+  -d '{"key": "Zm9v"}'
+
+printf "\n\nFetching 'curl https://m1.etcd.local:2379/metrics'...\n"
+curl \
+  --cacert /certs/ca.crt \
+  --cert /certs/server.crt \
+  --key /certs/server.key.insecure \
+  -L https://m1.etcd.local:2379/metrics | grep Put | tail -3
+
+printf "\n\nDone!!!\n\n"