take into account status codes by leveraging `--fail` curl option (Refs #37)

mintnet-kubernetes/app.template.yaml

@@ -129,11 +129,11 @@ spec:
             # wait until validator generates priv/pub key pair
             set +e
 
-            curl -s "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
+            curl -s --fail "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
             ERR=$?
             while [ "$ERR" != 0 ]; do
               sleep 5
-              curl -s "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
+              curl -s --fail "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
               ERR=$?
             done
             set -e

mintnet-kubernetes/examples/basecoin/app.yaml

@@ -188,11 +188,11 @@ spec:
             # wait until validator generates priv/pub key pair
             set +e
 
-            curl -s "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
+            curl -s --fail "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
             ERR=$?
             while [ "$ERR" != 0 ]; do
               sleep 5
-              curl -s "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
+              curl -s --fail "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
               ERR=$?
             done
             set -e
@@ -247,11 +247,11 @@ spec:
             # wait until pod starts to serve its pub_key
             set +e
 
-            curl -s "http://$pod.$fqdn_suffix/app_pub_key.json" > /dev/null
+            curl -s --fail "http://$pod.$fqdn_suffix/app_pub_key.json" > /dev/null
             ERR=$?
             while [ "$ERR" != 0 ]; do
               sleep 5
-              curl -s "http://$pod.$fqdn_suffix/app_pub_key.json" > /dev/null
+              curl -s --fail "http://$pod.$fqdn_suffix/app_pub_key.json" > /dev/null
               ERR=$?
             done
             set -e

mintnet-kubernetes/examples/counter/app.yaml

@@ -121,11 +121,11 @@ spec:
             # wait until validator generates priv/pub key pair
             set +e
 
-            curl -s "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
+            curl -s --fail "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
             ERR=$?
             while [ "$ERR" != 0 ]; do
               sleep 5
-              curl -s "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
+              curl -s --fail "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
               ERR=$?
             done
             set -e

mintnet-kubernetes/examples/dummy/app.yaml

@@ -121,11 +121,11 @@ spec:
             # wait until validator generates priv/pub key pair
             set +e
 
-            curl -s "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
+            curl -s --fail "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
             ERR=$?
             while [ "$ERR" != 0 ]; do
               sleep 5
-              curl -s "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
+              curl -s --fail "http://$v.$fqdn_suffix/pub_key.json" > /dev/null
               ERR=$?
             done
             set -e