build: updated kokoro config for coverage and release-please (#715)

Author: bcoe

.kokoro/continuous/node10/test.cfg

@@ -0,0 +1,19 @@
+# Bring in codecov.io master token into the build as $KOKORO_KEYSTORE_DIR/73713_dpebot_codecov_token
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "dpebot_codecov_token"
+    }
+  }
+}
+
+# token used by release-please to keep an up-to-date release PR.
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "yoshi-automation-github-key"
+    }
+  }
+}

.kokoro/release-candidate-issue.sh

@@ -9,6 +9,15 @@ before_action {
   }
 }
 
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "yoshi-automation-github-key"
+    }
+  }
+}
+
 before_action {
   fetch_keystore {
     keystore_resource {

.kokoro/release-requested.sh

@@ -35,3 +35,11 @@ if npx check-node-version@3.3.0 --silent --node $COVERAGE_NODE; then
 else
   echo "coverage is only reported for Node $COVERAGE_NODE"
 fi
+
+# if the GITHUB_TOKEN is set, we kick off a task to update the release-PR.
+GITHUB_TOKEN=$(cat $KOKORO_KEYSTORE_DIR/73713_yoshi-automation-github-key) || true
+if [ "$GITHUB_TOKEN" ]; then
+  npx release-please release-pr --token=$GITHUB_TOKEN \
+    --repo-url=googleapis/nodejs-storage \
+    --package-name=@google-cloud/storage
+fi

.kokoro/release/publish.cfg

@@ -1,5 +1,5 @@
 {
-  "updateTime": "2019-05-17T01:12:33.148151Z",
+  "updateTime": "2019-05-17T19:51:54.843028Z",
   "sources": [
     {
       "template": {